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By , Health Journalist
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The information below and in the related links is designed to help you understand what your latest blood pressure readings may mean for your health -- and to provide tips on what you can do to get or keep your blood pressure in a healthy zone.
NOTE: This information isn't a substitute for medical advice provided by your own doctor. If you think you might have hypertension or elevated blood pressure, be sure to discuss your blood pressure concerns with a doctor or nurse, who can help you factor in other important information, such as other medical problems you may have. In particular, the information below and in the related links may not always apply to those who are very old, very frail, or have multiple chronic medical conditions.
Also, if you find that your systolic blood pressure (the first, or "top" number) is higher than at least 130, and your diastolic number (the second number, or "bottom" number) is lower than 80, you may have something called Isolated Systolic Hypertension. This type of high blood pressure becomes more and more common as people get older. For this kind of hypertension, doctors usually conclude it's more important to focus on the systolic pressure, rather than the diastolic pressure.
Hypertensive Crisis (Emergency Care Needed)
Above 180/110
Readings above 180 systolic pressure (the upper number) or above 110 diastolic pressure (the lower number) usually indicate a hypertensive crisis -- putting you in the highest risk category for heart attack, stroke, and other acute life-threatening problems
-- and requiring emergency care.
Very high blood pressure can cause symptoms such as headache, nausea and vomiting, mental confusion, vision changes, chest pain, or shortness of breath. If you notice any of these symptoms along with a blood pressure above 180/110, your high blood pressure is considered a hy call 911.
During a hypertensive emergency, a medical team will work to bring your blood pressure down quickly. If you don't have these symptoms but your blood pressure remains high, doctors call this "hypertensive urgency." It's important to seek medical attention for hypertensive urgency, so that doctors can help bring your blood pressure down over a period of hours to days.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Stage 2 Hypertension (High Risk)
140/90 - 180/110
Systolic blood pressure readings at least 140 or diastolic blood pressure readings at least 90 usually indicate STAGE 2 HYPERTENSION, which puts you at high risk for life-threatening problems such as heart attack and stroke.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
, , , , , , , , , , , , , , , , , , , , , ,
Stage 1 Hypertension
130/80 - 139/89
Systolic blood pressure readings between 130 and 139 or diastolic blood pressure readings between 80 and
89 usually indicate STAGE 1 HYPERTENSION, which means the force of the blood pressure in your arteries is higher than normal, putting you at increased
risk of life-threatening problems such as heart attacks and stroke. Blood pressure in this range can also damage organs such as the heart and the kidneys over time, especially in people who already have chronic medical problems affecting these parts of the body.
If you're already being treated for hypertension with medications, and your blood pressure is in this range, you may need to have your medications adjusted.
If you've never been diagnosed with high blood pressure before, you may have developed hypertension. Hypertension is defined as a systolic blood pressure at least 130, and/or a diastolic blood pressure at least 80. For a new diagnosis hypertension should be confirmed on at least 2 office visits after an initial screening.
Specific Readings:
, , , , , , ,
Elevated Blood Pressure
120/61 - 129/79
Systolic blood pressure readings between 120 and 129 with diastolic blood pressure readings less than 80 usually indicate ELEVATED BLOOD PRESSURE, indicating
you don't have hypertension but your blood pressure is higher than what experts consider optimal for most adults. Research studies suggest that people with elevated blood pressure are more likely to have a heart attack or stroke, compared to people with lower blood pressure. However, many experts currently don't recommend using medications to treat elevated blood pressure, unless the patient also has other medical conditions that would benefit from lower blood pressure (such as heart failure or kidney disease).
Many people with elevated blood pressure eventually develop true hypertension, so having your blood pressure checked regularly is important.
If you're already on medications for high blood pressure, this level of blood pressure is often considered adequate control by most doctors.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
Normal Blood Pressure
91/61 - 119/79
Readings above 90/60 and below 120/80 indicate that the pressure in your arteries is considered normal for most adults. However, in some cases, a systolic blood pressure below 110 can be associated with dizziness when standing. This is more likely to happen to older adults or to people who usually have a much higher blood pressure.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
, , , , , , , , , , , , , ,
Hypotension (Low Blood Pressure)
80/50 - 90/60
Readings at or below 90/60 usually indicate an abnormally low blood pressure, or what's called HYPOTENSION, meaning the pressure in your arteries is at the lower end of what's considered normal. Some people with blood pressure this low may be prone to weakness or fainting, but many people feel just fine. If you're taking blood pressure medicines, they're probably lowering your blood pressure more than they need to, and they should be adjusted. It's also possible to get low blood pressure as a side effect of certain medications.
If you're not on any blood pressure medicines, there's usually no need to be concerned about low blood pressure unless you're experiencing symptoms such as dizziness, fainting, nausea, or fatigue. In fact, hypotension isn't usually diagnosed unless the patient is experiencing symptoms.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
, , , , , , , ,
Severe Hypotension (Very Low Blood Pressure)
Below 80/60
Readings below 80/60 usually indicate severely low blood pressure, which may have an underlying cause that could indicate a new, serious heart problem or infection. Very low blood pressure can also be caused by an endocrine or neurological condition. However, some people have very low blood pressure but feel fine and are otherwise healthy. Certain medications and nutritional deficiencies can worsen low blood pressure.
To learn more about what your blood pressure reading means and what you can do, click on the link, below, that most closely matches your reading:
Specific Readings:
, , , , , , , , , , , , , , ,
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General Certification Requirements and Specifications
2.1 RSS-Gen Compliance
2.2 Emissions Falling Within Restricted Frequency Bands
2.3 Receivers
2.4 Cordless Telephones (General Conditions)
2.5 General Field Strength Limits
Annex 1 – Momentarily Operated Devices and Remote Control
Annex 2 – Devices Operating in Frequency Bands for Any Application
Annex 3 – 44/49 MHz Cordless Telephones
Annex 4 – Medical Telemetry, Wireless Microphones, Auditory Assistance, Goods Tracking and Law Enforcement
Annex 5 – Radio Frequency Identification (RFID) Devices in the Band 433.5–434.5 MHz
Annex 6 – Family Radio Service (FRS) and General Mobile Radio Service (GMRS)
Annex 7 – Field Disturbance Sensors Operating in the Bands 902–928 MHz,
MHz, MHz, 10.5–10.55 GHz and 24.075–24.175 GHz
Annex 8 – Frequency Hopping and Digital Modulation Systems Operating in the Bands 902–928 MHz,.5 MHz and
Annex 9 – Local Area Network Devices
Annex 10 – Vehicle Identification
Annex 11 – Level Probing Radar Devices Enclosed in Containers and Still Pipes
Annex 12 – Fixed Point-to-Point Systems in the Band 24.05–24.25 GHz
Annex 13 – Devices Operating in the Bands 46.7–46.9 GHz, 57–64 GHz and 76–77 GHz
Annex 14 – Wideband Devices Operating Within the Band
Radio Standards Specification RSS-210, Issue 8, Licence-exempt Radio Apparatus (All Frequency Bands): Category I Equipment, replaces RSS-210, Issue 7, Low-power Licence-exempt Radiocommunication Devices (All Frequency Bands): Category I Equipment, dated June 2007.
This document will be in force as of the publication date of Notice No. SMSE-016-10 in Canada Gazette, Part I. Upon publication, the public has 120 days to submit comments. The comments received will be taken into account in the preparation of the next version of the document.
List of Changes:
The two tables for general field strength limits and the table of restricted frequency bands have been transferred toRSS-Gen.
Annex 1: The tables for limits applicable to momentary operation and for reduced limits for momentary operation have been moved from the introductory section of RSS-210 to Annex 1.
Annex 2, Section A2.8: Field strength compliance of 100 uV/m measured at 30 metres has been removed, and the measurement method for FM modulators has been clarified.
Annex 2, Section A2.9: The use of detector functions in the limits shown in the table has been clarified.
Annex 4: New requirements for medical telemetry devices in the bands
MHz and .5 MHzhave been added (new Section A4.5).
Section A4.4: Information related to the Dominion Radio Astrophysical Observatory (DRAO) in the notice to users of608–614 MHz medical telemetry devices has been updated.
Annex 6, sections A6.2.5 (b)(i) and (ii): In each of these two paragraphs, a typographical error showing "300 kHz" as the measurement bandwidth has been corrected to "300 Hz."
Annex 7, introductory paragraph: Text excluding perimeter protection systems from requirements has been clarified.
Annex 14 (New): A new annex has been added setting out requirements for wideband devices in the band MHz.
Enquires may be directed to the following address:
Industry Canada Engineering,
Planning and Standards Branch
300 Slater Street
Ottawa, Ontario K1A 0C8
Attention: Regulatory Standards
: res.nmr@ic.gc.ca
All http://www.ic.gc.ca/spectrum.
Issued under the authority of
the Minister of Industry
Marc Dupuis
Director General
Engineering, Planning and Standards Branch
RSS-210, Issue 8, sets out the requirements for equipment certification of several types of radio apparatus used for radiocommunication other than broadcasting. The types of radio apparatus covered under this standard are mostly of low power and are mainly for consumer or commercial purposes, applicable in all frequency bands. Radio apparatus covered under RSS-210 is considered Category I equipment, comprising radio apparatus for which a technical acceptance certificate (TAC) issued by the Certification and Engineering Bureau of Industry Canada, or a certificate issued by a recognized Certification Body (CB), is required pursuant to subsections 4(2) of the Radiocommunication Act and 21(1) of the Radiocommunication Regulations. However, all radio apparatus under RSS-210 is licence-exempt.
2. General Certification Requirements and Specifications
2.1 RSS-Gen Compliance
In addition to RSS-210, the requirements in RSS-Gen, General Requirements and Information for the Certification of Radio Apparatus, must be met.
2.2 Emissions Falling Within Restricted Frequency Bands
Category I licence-exempt equipment is required to comply with the provisions in RSS-Gen with respect to emissions falling within restricted frequency bands. These restricted frequency bands are listed in RSS-Gen.
2.3 Receivers
Category I equipment receivers for use with transmitters subject to RSS-210 must comply with the applicable requirements set out in RSS-Gen and be certified under RSS-210. Category II equipment receivers for use with transmitters subject toRSS-210 are exempt from certification, but are subject to compliance with RSS-Gen and RSS-310.
2.4 Cordless Telephones (General Conditions)
This section sets out the general conditions applicable to all cordless telephones, regardless of the frequency band of operation. In addition, there are standards specific to those bands that can be used for cordless telephones as specified in the annexes.
A cordless telephone comprises a base station and a portable handset. The handset is intended to operate as an extension of the base station by the elimination of the connecting handset cord of the standard telephone. The base station is intended to be connected to a telephone line that has access to a public switched network. Cordless telephones operate in a full duplex mode, which allows simultaneous conversations between both parties. Note that cellular and PCS (personal communications services) handsets that operate with hub stations, the latter provided by cellular and PCS companies, are not classified as cordless telephones and RSS-210 cannot be used for equipment certification of these handsets.
The base station shall comply with both RSS-210 and Compliance Specification CS-03 and be certified under both documents.
Digital Security Codes:
Cordless telephones shall have circuitry that makes use of a digital code word in the dialling and ringing function to provide protection against unintentional line seizure and dialling, and unintentional ringing of the handset, in the following manner:
Access to the telephone network shall be preceded by the transmission of a code word from the handset. This code word shall be one of at least 256 possible combinations (i.e. eight or more bits). Access to the telephone network is to occur only if the code word transmitted by the handset matches that used in the base station. Similarly, ringing of the handset shall be permitted to occur only if the code word transmitted by the base station matches the code word in the handset.
For a good geographical distribution of users of the possible combinations of digital security codes, the manufacturer must provide one of the following:
a means for the user to readily select one of the security codes. The telephone shall be either in a non-operable mode after manufacture and until the user selects a security code, or the manufacturer must continuously vary the initial security code as each telephone is produced.
a fixed security code at the time of manufacture that is continuously varied either randomly or sequentially.
a means for the telephone to automatically select a different security code each time the telephone is activated or dialled.
A combination of the above or any method satisfying the intent of the equipment.
Details concerning the means and procedures used to achieve the required geographical distribution shall be described in the product literature for the equipment being evaluated and attested to, and shall be included in the application for equipment certification.
In addition to the user manual requirements of RSS-Gen, the user manual for the device shall contain the following or equivalent notice:
Privacy of communications may not be ensured when using this telephone.
If privacy is provided as a standard feature, the privacy notice may be omitted provided that full justification accompanies the equipment certification application.
2.5 General Field Strength Limits
RSS-Gen includes the general field strength limits of unwanted emissions, where applicable, for transmitters and receivers operating in accordance with the provisions specified in this standard.
Unwanted emissions of transmitters and receivers are permitted to fall within the restricted bands listed in RSS-Gen, and including the TV bands, but fundamental emissions are prohibited in the restricted bands bands.
2.5.1 Transmitters with Wanted Emissions that are Within the General Field Strength Limits
Whether or not their operation is addressed by published RSS standards, transmitters whose wanted and unwanted emissions are within the general field strength limits shown in RSS-Gen, they may operate in any of the frequency bands, other than the restricted bands listed in RSS-Gen and including the TV bands, and shall be certified under RSS-210. Under no conditions may the level of any unwanted emissions exceed the level of the fundamental emission.
Note: Devices operating below 490 kHz in which all emissions are at least 40 dB below the limit listed in RSS-Gen(General Field Strength Limits for Transmitters at Frequencies below 30 MHz) are Category II devices and are subject toRSS-310.
Footnote 1
"Broadcasting" means any transmission of programs, whether encrypted or not, by radio waves or other means of telecommunication for reception by the public by means of broadcasting receiving apparatus, but does not include any such transmission of programs that is made solely for performance or display in a public place.
Annex 1 – Momentarily Operated Devices and Remote Control
The requirements of this annex are for momentarily operated transmitters and receivers, as well as remote control devices. RSS-Gen summarizes the bands and field strength limits available to devices that may operate continuously. These bands are also available for momentary operation provided that usage restrictions are observed.
Operation of momentarily operated devices is prohibited in the restricted bands listed in RSS-Gen, but is permitted in TVbands (54–72 MHz, 76–88 MHz, 174–216 MHz, 470–608 MHz and 614–806 MHz), as per the conditions in Section A1.1 below.
A1.1 Momentarily Operated Devices
The frequency bands and field strength limits in tables A and B of this annex are only for the transmission of a control signal, such as that used with alarm systems, door openers, remote switches, etc. Radio control of toys or model aircraft, and continuous transmissions, such as voice or video, are not permitted except as provided in Section A1.1.5 below. Data may be sent with a control signal.
Table A: Permissible Field Strength Limits for Momentarily Operated Devices
Fundamental
Frequency (MHz),
restricted band
frequencies of
Field Strength of the
Fundamental
(microvolts/m
at 3 metres)
Field Strength of Unwanted
(microvolts/m
at 3 metres)
40.66–40.70
See Section A2.7
1,250 to 3,750
125 to 375
3,750 to 12,500
375 to 1,250
Table A notes
Table A note 1
Limits on the field strength of emissions, as shown in this table, are based on the average value of the measured emissions. As an alternative, compliance with the limits in this table may be based on the use of measurement instrumentation with a CISPR quasi-peak detector.
Table A note 2
The frequency band 225–399.9 MHz is allocated for Government of Canada usage. There are different types of operations in different parts of this band of frequencies, including communications with aircraft and operations using high-power transmitters. Besides avoiding the restricted frequency bands listed in RSS-Gen, it is recommended that the entire 225–399.9 MHz band be avoided.
Table A note 3
Linear interpolation with frequency F in MHz:
For 130–174 MHz: FS (microvolts/m) = (56.82 × F)-6136
For 260–470 MHz: FS (microvolts/m) = (41.67 × F)-7083
Table B: Reduced Field Strength Limits for Momentarily Operated Devices
Fundamental
Frequency (MHz),
restricted band
frequencies of
Field Strength of the
Fundamental
(microvolts/m
at 3 metres)
Field Strength of Unwanted
(microvolts/m
at 3 metres)
40.66–40.70
See Section A2.7
500 to 1,500
1,500 to 5,000
150 to 500
Table B notes
Footnote 1
Limits on the field strength of emissions, as shown in this table, are based on the average value of the measured emissions. As an alternative, compliance with the limits in this table may be based on the use of measurement instrumentation with a CISPR quasi-peak detector.
Footnote 2
Linear interpolation with frequency F in MHz:
For 130–174 MHz: FS (microvolts/m) = (22.73 × F)-2454.55
For 260–470 MHz: FS (microvolts/m) = (16.67 × F)-2833.33
A1.1.1 Types of Momentary Signals
The following conditions shall be met to comply with the provisions for momentary operation:
A manually operated transmitter shall be equipped with a push-to-operate switch and be under manual control at all transmission times. When released, the transmitter shall cease transmission (holdover time of up to 5 seconds is permitted).
A transmitter activated automatically shall cease transmission within 5 seconds after activation (i.e.maximum 5 seconds of operation).
Periodic transmissions at regular predetermined intervals are not permitted, except as provided in Section A.1.1.5. However, polling or supervision transmissions to determine system integrity of transmitters used in security or safety applications are allowed if the total duration of transmission does not exceed 2 seconds per hour for each transmitter.
Intentional radiators employed for radio control purposes during emergencies involving fire, security of goods (e.g.burglar alarms), and safety-of-life, when activated to signal an alarm, may operate during the interval of the alarm condition.
A1.1.2 Field Strengths and Frequency Bands
The field strength of emissions from momentarily operated intentional radiators shall not exceed the limits in Table A.
Intentional radiators shall demonstrate compliance with the field strength limits shown in Table A, based on the average value of the measured emissions.
Alternatively, compliance with the limit in Table A may be demonstrated using a CISPR quasi-peak detector. If average measurements are employed, the requirements of Pulsed Operation of RSS-Gen apply regarding pulsed operation for averaging pulsed emissions and for limiting peak emissions.
The field strength limits shown in Table A are based on the fundamental frequency of the intentional radiator. Unwanted emissions shall be attenuated to the limits listed in RSS-Gen or to the limits shown in Table A, whichever are less stringent.
A1.1.3 Bandwidth of Momentary Signals
For the purpose of Section A1.1, the 99% bandwidth shall be no wider than 0.25% of the centre frequency for devices operating between 70 MHz and 900 MHz. For devices operating above 900 MHz, the emission shall be no wider than 0.5% of the centre frequency.
A1.1.4 Frequency Stability
Carrier frequency stability of devices momentarily operated in the band 40.66–40.70 MHz shall be maintainedto ±0.01% (±100 ppm).
A1.1.5 Reduced Field Strengths
Devices may be employed for any type of operation, including operation prohibited in Section A1.1.1, provided that the device complies with the requirements of sections A1.1.2 through A1.1.4 and that the field strength meets the limits in Table B of this annex.
In addition, devices operated under the provisions of this section (A1.1.5) shall be capable of automatically limiting their operation so that the duration of each transmission shall not be greater than 1 second and the silent period between transmissions shall be at least 30 times the duration of the transmission, but in no case less than 10 seconds. However, devices that are designed for limited use for the purpose of initial programming, reprogramming or installation, and not for regular operations, may operate up to 5 seconds provided that such devices are used only occasionally in connection with each unit being programmed or installed.
The field strength limits shown in Table B are based on the fundamental frequency of the intentional radiator. Unwanted emissions shall be attenuated to the general field strength limits listed in RSS-Gen or to the limits shown in Table B, whichever are less stringent.
A1.2 Remote Control
A1.2.1 Band 26.99–27.255 MHz
This band is only for one-way, non-voice usage for remote controls, under the following conditions:
Only the following channel carrier frequencies are permitted: 26.995; 27.045; 27.095; 27.145; 27.195 and 27.255 MHz.
For single sideband (SSB) modulation, the transmitter radio frequency (RF) peak envelope power shall not exceed4 W.For double sideband (amplitude), digital or frequency modulation, the transmitter unmodulated carrier power shall not exceed 4 W.
An antenna gain not exceeding that of a half-wave dipole shall be used.
For the purpose of paragraph (f) below, the authorized bandwidth is 8 kHz for double sideband, digital or FM, and 4 kHz for SSB modulations. For SSB, either upper or lower sideband may be used.
Carrier frequency stability shall be maintained to ±0.005% (±50 ppm). However, devices with output powers of 2.5 Wor less can have a frequency stability of ±0.01% (±100 ppm).
The power of unwanted emissions measured by an average meter with a resolution bandwidth of 300 Hz for (i) and (ii), and 3 kHz for (iii), shall be less than the mean transmitter power (TP, in watts) by at least:
25 dB on any frequency removed from the centre of the authorized bandwidth by more than 50%, up to and including 100% of the
35 dB on any frequency removed from the centre of the authorized bandwidth by more than 100%, up to and including 250% of the
43 + 10 log10(TP) dB or to the general field strength limits listed in RSS-Gen, whichever is less stringent, on any frequency removed from the centre of the authorized bandwidth by more than 250% of the authorized bandwidth.
A1.2.2 Band 47 MHz Road Traffic Controllers
The following is only for self-powered vehicle detector transmitters. They are for one-way communication buried under the asphalt, and shall use 100 mW power or less to change traffic lights on streets.
Each transmitter is turned on for approximately 28 milliseconds on the approach of a vehicle and on again for another28 ms at the tail of that vehicle (i.e. 56 ms per vehicle). The transmitter output power during transmission must not exceed100 mW, with the average power very low and dependent on the traffic flow.
Radio apparatus as described in this section is licence-exempt for municipalities and traffic departments. The following list of frequencies can be used:
47.02; 47.03; 47.05; 47.07; 47.11; 47.13; 47.15; 47.17 (MHz)
47.23; 47.25; 47.27; 47.29; 47.30; 47.31; 47.33; 47.35 (MHz)
Although there is no specification on transmitter carrier frequency stability, the equipment design should be based on good engineering principles that take into account the severe Canadian weather conditions. Emission spectral density outside a nominal bandwidth of 12.5 kHz shall be suppressed by at least 20 dB relative to the in-band spectrum.
A1.2.3 72–73 MHz (Model Aircraft) and 75.4–76 MHz (General Remote Control)
A1.2.3.1 Carrier Frequencies
72–73 MHz Model AircraftThe following frequencies (in MHz) are only for radio control of model aircraft:
72.01; 72.03; 72.05; 72.07; 72.09;
72.11; 72.13; 72.15; 72.17; 72.19;
72.21; 72.23; 72.25; 72.27; 72.29;
72.31; 72.33; 72.35; 72.37; 72.39;
72.41; 72.43; 72.45; 72.47; 72.49;
72.51; 72.53; 72.55; 72.57; 72.59;
72.61; 72.63; 72.65; 72.67; 72.69;
72.71; 72.73; 72.75; 72.77; 72.79;
72.81; 72.83; 72.85; 72.87; 72.89;
72.91; 72.93; 72.95; 72.97; 72.99.
75.4–76 MHz General Remote Control
The following frequencies (in MHz) are for general usage remote control of any type other than for control of a model aircraft. Voice modulation is permitted for emergency use if it is of the push-to-talk type. The centre or carrier frequencies (30 frequencies spaced in 20 kHz steps) are as follows:
75.41; 75.43; 75.45; 75.47; 75.49;
75.51; 75.53; 75.55; 75.57; 75.59;
75.61; 75.63; 75.65; 75.67; 75.69;
75.71; 75.73; 75.75; 75.77; 75.79;
75.81; 75.83; 75.85; 75.87; 75.89;
75.91; 75.93; 75.95; 75.97; 75.99.
A1.2.3.2 Standards Specifications
For SSB, the transmitter radio frequency (RF) peak envelope power shall not exceed 0.75 W.For double sideband (amplitude), digital or frequency modulation, the transmitter unmodulated carrier power shall not exceed 0.75 W.
An antenna gain not exceeding that of a half-wave dipole shall be used.
For the purpose of paragraph (5) below, the authorized bandwidth is 8 kHz for double sideband, digital or FM, and 4 kHz for SSB modulations. For SSB, either upper or lower sideband may be used.
Carrier frequency stability shall be maintained to ±0.002% (±20 ppm).
The power of unwanted emissions, measured by an average meter with a resolution bandwidth of 300 Hz for (i) to (iii) and 3 kHz for (iv), shall be less than the mean transmitter power (TP, in watts) by at least:
25 dB on any frequency removed from the centre of the authorized bandwidth by more than 50%, up to and including 100% of the
45 dB on any frequency removed from the centre of the authorized bandwidth by more than 100%, up to and including 125% of the
55 dB on any frequency removed from the centre of the authorized bandwidth by more than 125%, up to and including 250% of the
56 + 10 log10(TP) dB, or to the general field strength limits listed in RSS-Gen, whichever is less stringent, on any frequency removed from the centre of the authorized bandwidth by more than 250% of the authorized bandwidth.
Footnote 2
Momentary operation may also mean periodic operation.
Annex 2 – Devices Operating in Frequency Bands for Any Application
A2.1 Band 160–190 kHz
Devices using this band shall limit the total input power to the final radio frequency stage to 1.0 watt maximum, and the total length of transmission line, antenna and ground lead (if used) to 15 metres maximum. Example: A coaxial or twin-wiretransmission line of L metres long has a wire length of 2L. If a loop antenna of N turns is used with this transmission line, compute the length of wire used by the N turns, and add the result to 2L. The total shall not exceed 30 metres.
Emissions outside of this band shall be attenuated by at least 20 dB below the mean transmitter output power or to the general field strength limits listed in RSS-Gen, whichever is less stringent.
A2.2 Band 510–1705 b&
Devices using this band shall comply with one of the following limits:
The total input power to the final radio frequency stage shall not exceed 100 milliwatts, and the total length of transmission line, antenna and ground lead (if used) shall not exceed 3 or
The field strength of radiated emissions shall not exceed 250 microvolts/m measured at 30 metres.
Transmitters that employ a leaky coaxial cable as a radiating antenna may meet the field strength limit of15 microvolts/m, as measured at a distance of 47715/(frequency in b&) metres (equivalent to wavelength / ( 2 π ) ) from the coaxial cable.
Emissions outside of this band shall be attenuated by at least 20 dB below the mean transmitter output power, or to the general field strength limits listed in RSS-Gen, whichever is less stringent.
A2.3 Band 1.705–10 MHz
The field strength shall not exceed 100 microvolts/m measured at 30 metres with an average meter. However, if the -6 dBbandwidth of the emission is less than 10% of the centre frequency, the field strength shall not exceed 15 microvolts/m at30 m or (the bandwidth of the device in b&) divided by (the centre frequency of the device in MHz) microvolts/m at 30 m,whichever is the higher level.
Outside of this band, general field strength limits listed in RSS-Gen shall apply.
A2.4 Band 1.705–37 MHz Swept Frequency
Notwithstanding that this band encompasses some restricted bands listed in RSS-Gen, swept frequency devices are permitted when all the following conditions are met:
The sweep is never stopped with the fundamental emission within any restricted band listed in RSS-Gen;
The field strength does not exceed the limits in sections A2.3, A2.5, A2.6, or the general field strength limits listed inRSS-Gen, whichever is less stringent, when measured with the sweeping stopped in those bands.
The fundamental emission dwelling on any restricted band listed in RSS-Gen shall not exceed 1.0% of the time that the device is actively transmitting, without compensation for duty cycle.
Outside of the swept frequency band, the out-of-band emission limits in sections A2.5 and A2.6, or the general field strength limits listed in RSS-Gen apply, whichever are less stringent. This test is to be carried out with the frequency sweep in operation.
A2.5 Band 6.765–6.795 MHz
The field strength of any emission shall not exceed the following limits:
15.5 microvolts/m (84 dBμV/m) at 30 m, inside the allocated band.
334 microvolts/m (50.5 dBμV/m) at 30 m, outside the allocated band up to Fc ±150b&.
106 microvolts/m (40.5 dBμV/m) at 30 m, between Fc ±150 b& and Fc ±450 b&.
RSS-Gen general field strength limits for frequencies outside Fc ±450 b&, except for harmonics, which shall not exceed 316 microvolts/m at 30 m
where Fc = 6.78 MHz.
Carrier frequency stability shall be maintained to ±0.01% (±100 ppm).
A2.6 Band 13.110–14.010 MHz
The field strength of any emission shall not exceed the following limits:
15.848 microvolts/m (84 dBμV/m) at 30 m, within the band 13.553–13.567 MHz.
334 microvolts/m (50.5 dBμV/m) at 30 m, within the bands 13.410–13.553 MHz and 13.567–13.710 MHz.
106 microvolts/m (40.5 dBμV/m) at 30 m, within the bands 13.110–13.410 MHz and 13.710–14.010 MHz.
30 microvolts/m (29.5 dBμV/m) at 30 m, outside the band 13.110–14.010 MHz.
Carrier frequency stability shall be maintained to ±0.01% (±100 ppm).
A2.7 Band 40.66–40.70 MHz
The field strength shall not exceed 10 microvolts/m (80 dBμV/m) measured at 3 metres with an average meter. Alternatively, it shall not exceed 233 mV/m measured with a quasi-peak meter. (Note: Do not use the above to convert average meter readings to quasi-peak values.)
The -6 dB bandwidth of the emission shall be confined within the 40.66–40.70 MHz band edges.
Outside the 40.65–40.71 MHz band, the general field strength limits listed in RSS-Gen shall apply, except for harmonics, which shall not exceed 225 microvolts/m at 3 metres.
Carrier frequency stability shall be maintained to ±0.01% (±100 ppm).
A2.8 Band 88–108 MHz
The field strength shall not exceed 250 microvolts/m measured at 3 metres with an average meter. Any type of modulation (and carrier frequencies within the band 88–108 MHz) may be used for this category.
The occupied bandwidth shall not exceed 200 b&.
Outside the 200 b& band (as well as outside the 88–108 MHz band), the general field strength limits listed in RSS-Genapply.
If the audio input signal is audio and the transmitter is frequency modulated, compliance with the above requirements shall be demonstrated by modulating the transmitter with a 2.5 b& tone at a level 16 dB higher than that required to produce a frequency deviation of 75 b&, or 50 % of the manufacturer's rated deviation, whichever is less.
A2.9 Bands 902–928, .5 and
This section provides standards for devices that can be used for any application provided that the following conditions are met:
The field strength measured at 3 metres shall not exceed the limits in the following table:
Bands902–928,.5and MHz – The field strength measured at 3 metres shall not exceed the limits in the following table
Fundamental
Frequencies
Field Strength
(millivolts/m)
Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least50 dB below the level of the fundamental or to the general field strength limits listed in RSS-Gen, whichever is less stringent.
The provisions of RSS-Gen regarding pulsed operation do not apply to CISPR measurement for the band 902–928 MHz.
A2.10 Bands 17.15 GHz and 94 GHz
The following carrier frequencies are available for use by radar and other mobile devices. Their parameters, such as occupied bandwidth and permissible out-of- band emissions, will be evaluated on a case-by-case basis.
17.15 GHz: 0.3 W <abbr title="Effective Isotropic Radiated
Power">e.i.r.p.
94 GHz: 0.4 W e.i.r.p.
Annex 3 – 44/49 MHz Cordless Telephones
The provisions shown in this section are for cordless telephones specific to these bands. See also Section 2.4 on general conditions applicable to all cordless telephones.
An intentional radiator used as part of a cordless telephone system shall operate on one of the following carrier frequency pairs (except as provided in (2) below):
44/49 MHzCordless Telephones – An intentional radiator used as part of a cordless telephone system shall operate on one of the following carrier frequency pairs (except as providedin (2)below)
Transmit Frequencies (MHz)
Frequencies shall be paired as shown in the table, except that pairing for channels 1 through 15 may be accomplished by pairing any of the 15 base transmitter frequencies with any of the 15 handset transmitter frequencies (flexible pairing).
Cordless telephones operating on channels 1 through 15 shall:
incorporate an automatic channel selection mechanism that will prevent establishment of a link on any occupied frequency. A description of the means and procedures used to achieve automatic channel selection shall be provided in the application for equipment certification.
provide a user manual which contains information indicating that some cordless telephones operate at frequencies that may cause interference to nearby TVs and VCRs and that, to minimize or prevent such interference, the base station should not be placed near a TV or VCR; if interference is experienced, moving the base station farther away will often reduce or eliminate the interference.
The field strength shall not exceed 10 microvolts/m measured at 3 metres with an average meter.
The occupied bandwidth shall not exceed 20 kHz, centred on the test carrier frequency. Outside of this band, emissions shall be attenuated at least 26 dB below the level of the unmodulated carrier. A spectrum analyzer resolution bandwidth of at least 300 Hz and in the averaging mode is to be used.
On any frequency removed from the centre of the authorized bandwidth by more than ±20 kHz, the general field strength limits listed in RSS-Gen apply.
Carrier frequency stability shall be maintained to within ±0.01% (±100 ppm).
Annex 4 – Medical Telemetry, Wireless Microphones, Auditory Assistance, Goods Tracking and Law Enforcement
A4.1 Bands 72–73 MHz, 74.6–74.8 MHz, and 75.2–76.0 MHz (Auditory Assistance and Wireless Microphones)
These bands are only for auditory assistance and wireless microphones. The field strength shall not exceed80 microvolts/m measured at 3 metres with an average meter.
The occupied bandwidth shall not exceed 200 kHz and shall lie within each permitted band.
Outside of this 200 kHz band (as well as outside of the specified frequency bands), the emissions shall not exceed1.5 microvolts/m at 3 metres.
A4.2 Band 174–216 MHz (Medical Telemetry)
This band is for medical telemetry usage only.
The prohibition of operation in the 174–216 MHz TV band does not apply to medical telemetry devices operating in this band. The field strength shall not exceed 1.5 microvolts/m measured at 3 metres with an average meter.
The occupied bandwidth shall not exceed 200 kHz.
Outside of this 200 kHz band (as well as outside of the allocated 174–216 MHz band), the general field strength limits listed in RSS-Gen apply.
In addition to the user manual requirements in RSS-Gen, the device's user manual shall contain the following or equivalent notice:
The user/purchaser of this device should take note that as digital TV broadcasting stations are introduced in the geographical area, the medical telemetry links may have to be shifted to operate in other (unused) TV channels. The user/purchaser should ensure that the radio device can adapt to this mode of operation.
A4.3 Band 216–217 MHz (Auditory Assistance, Medical Telemetry, Goods Tracking and Law Enforcement)
This band is channelized and available for one-way voice and two-way data transmission for auditory assistance, medical telemetry, goods tracking and law enforcement. The peak output power shall not exceed 100 mW or 160 mW e.i.r.p.
Law enforcement agencies have exclusive use of the sub-band 216.45–216.50 MHz. Auditory assistance, medical telemetry, goods tracking and law enforcement agencies have shared use of the rest of the band 216–217 MHz (i.e.sub-bands 216–216.45 and 216.50–217 MHz). The channel plan is given in the following table. All transmissions are on ano-interference, no-protection basis, especially with respect to TV channel 13 (of 210–216 MHz). It is therefore advisable to avoid the band 216–216.3 MHz where channel 13's sound carrier image frequency is located. Furthermore, the output power should be as low as possible for successful communication.
The provisions of RSS-Gen concerning the restricted frequency bands shown in RSS-Gen, do not apply to 216–217 MHzmedical telemetry devices in health care institutions. However, Industry Canada may, if deemed necessary, impose more attenuation than masks A to D for some restricted bands.
The requirements for the band 216–217 MHz are summarized in the table below.
Band216–217 MHz(Auditory Assistance, Medical Telemetry, Goods Tracking and Law Enforcement) – Requirements for the Band216–217 MHz
Frequencies
Frequencies
n = 1 to 200
n = 1 to 80
n = 1 to 40
215.975+0.05n,
n = 1 to 20
The following unwanted emissions masks shall be measured with the measurement meter in peak mode and a bandwidth of at least 300 Hz. Unwanted emissions shall be attenuated below the peak transmitter output power (P, watts) in accordance with the following masks:
30 + 20 (fd-2) dB, or 55 + 10 log10(P) dB, or 65 dB, whichever is less stringent, for emissions removed from the channel centre frequency (see above table) by a displacement frequency, fd in kHz, of more than 2 kHz, up to and including 3.75 kHz; and
at least 55 + 10 log10(P) dB, or to the general field strength limits listed in RSS-Gen, whichever is less stringent, for emissions more than 3.75 kHz away from the channel centre frequency.
at least 25 dB for emissions removed from the channel centre frequency by more than 50%, but not more than 100% of the
at least 35 dB for emissions removed from the channel centre frequency by more than 100%, but not more than 250% of the
at least 55 + 10 log10(P) dB or to the limits listed in RSS-Gen, whichever is less stringent for emissions removed from the channel centre frequency by more than 250% of the authorized bandwidth, where the authorized bandwidth is11.25 kHz.
At least 30 dB for emissions 12.5 kHz to 22.5 kHz removed from the chan and
At least 55 + 10 log10(P) dB or to the general field strength limits listed in RSS-Gen, whichever is less stringent, for emissions more than 22.5 kHz removed from the channel centre frequency.
At least 30 dB for emissions 25 kHz to 35 kHz removed from the chan and
At least 55 + 10 log10(P) dB or to the general field strength limits listed in RSS-Gen, whichever is less stringent, for emissions more than 35 kHz removed from the channel centre frequency.
In addition to the user manual requirements of RSS-Gen, the device's user manual shall contain the following or equivalent notice:
If TV channel 13 is used in the area, the installer shall reduce or adjust the radio frequency radiated power so that nearby TV channel 13 receivers do not receive radio interference from the system installed. Suggestions: A test with a TV receiver equipped with a "rabbit-ear antenna" and tuned to channel 13 should be conducted at the perimeter of the user's intended coverage area and should not overlap other users' areas without the latter's consent. If this does not solve the problem, a channel near the 217 MHzedge and not near 216 MHz should be tried.
A4.4 Band 608–614 MHz (Medical Telemetry)
Operation in this band is reserved for medical telemetry devices in hospitals and health care facilities. The spectral density shall not exceed a field strength of 200 millivolts/m, measured with a quasi-peak meter (nominal 120 kHz bandwidth) at a distance of 3 metres. Systems using wider bandwidth than 120 kHz will be permitted output power proportionate to its bandwidth. Accordingly, the total maximum permissible field strength is FS = 200 x square root (B/120), microvolts/m at 3 metres, where bandwidth B is in kHz. (Note: the full value of FS will not show on a quasi-peak meter because of the latter's limited bandwidth. Details of the measurement shall be reported.)
Emissions outside of the band 608–614 MHz shall not exceed the general field strength limits listed in RSS-Gen.
In addition to the user manual requirements of RSS-Gen, the device's user manual shall contain the following or equivalent notice:
Installation of this telemetry device is permitted in hospitals and health care facilities only. This device shall not be operated in mobile vehicles (including ambulances and other vehicles associated with health care facilities). The installer/user of this device shall ensure that it is at least 80 km from the Dominion Radio Astrophysical Observatory (DRAO) near Penticton, British Columbia. The coordinates of <abbr title="Dominion Radio
Astrophysical Observatory">DRAOare: latitude N 49° 19′ 15″, longitude W 119° 37′ 12″. For medical telemetry systems not meeting this80 km separation (<abbr title="for example (exempli
gratia)">e.g. the Okanagan Valley, British Columbia) the installer/user must coordinate with, and obtain the written concurrence of, the Director of DRAO before the equipment can be installed or operated. The Director of DRAO may be contacted at 250–497–2300 (telephone) or 250–497–2355 (fax). (Alternatively, the Manager, Regulatory Standards, Industry Canada, may be contacted.)
A4.5 Bands
MHz and .5 MHz (Medical Telemetry)
Operation in these bands is reserved for medical telemetry devices in hospitals and health care facilities in Canada, except in the areas of Sydney, Nova Scotia, or Gander, Newfoundland and Labrador, due to possible interference from government radar operations.
In addition to the user manual requirements of RSS-Gen, the device's user manual shall conspicuously contain the following:
"This equipment shall not be operated in the areas of Sydney, Nova Scotia, or Gander, Newfoundland and Labrador. Please contact the local Industry Canada Office for further information."
Alternatively, the notice may be printed on a separate insert to be included in the equipment packaging, which shall be highly visible upon opening the packaging.
Devices approved under this annex shall comply with the following:
A wireless medical telemetry device may transmit any emission type appropriate for communications which are related to the provision of medical care, except for video and voice. Waveforms such as electrocardiograms (ECGs) are not considered video.
The field strength shall not exceed 740 microvolts/m at a distance of 3 metres, measured with an averaging detector and a 1 MHz bandwidth.
Out-of-band emissions below 960 MHz shall not exceed 200 microvolts/m at a distance of 3 metres, measured with aCISPR quasi-peak detector.
Out-of-band emissions above 960 MHz shall not exceed 500 microvolts/m at a distance of 3 metres, measured with an averaging detector and a 1 MHz measurement bandwidth.
The emission bandwidth shall be contained within the bands of operation under all normal operating conditions as specified in the user's manual.
Annex 5 – Radio Frequency Identification (RFID) Devices in the Band 433.5–434.5 MHz
The provisions of this annex are for RFID devices used to identify the contents of commercial shipping containers. Operation must be limited to commercial and industrial areas such as ports, rail terminals and warehouses. Two-wayoperation is permitted to interrogate and to load data into devices. Voice communication is prohibited.
Devices approved under this annex shall comply with the following:
Devices shall be provided with a means for automatically limiting operation so that the duration of each transmission shall not be greater than 60 seconds and be permitted only to reinitiate an interrogation in the case of transmission error. Under normal circumstances (no transmission error), the silent period between transmissions shall not be less than 10 seconds.
The field strength of any emissions radiated within the band 433.5–434.5 MHz shall not exceed 11,000 microvolts/mmeasured at 3 metres with an average detector. The peak level of any emission within this specified frequency band shall not exceed 55,000 microvolts/m measured at 3 metres. Outside this specified band, the general field strength limits listed in RSS-Gen apply.
Annex 6 – Family Radio Service (FRS) and General Mobile Radio Service (GMRS)
A6.1 Family Radio Service (FRS) Devices
A6.1.1 Channel Frequencies
The following 14 simplex channel carrier frequencies are available for use in the FRS:
Family Radio Service (FRS) Devices – The following 14 simplex channel carrier frequencies are available for use in the FRS
Frequency (MHz)
A6.1.2 Emission Types and Modulation Requirements
Only emission types F3E, F1D and F2D are permitted for FRS.
Non-voice emission is permitted only for selective calling or tone-operated squelch to establish or continue a voice communication, digital data transmission of location information or text messaging, and is subject to the following restrictions:
An FRS unit may transmit tones to make contact or to continue communications with a particular FRS unit. If the tone is audible (greater than 300 Hz), it may be transmitted continuously no longer than 15 seconds at a time. If the tone is inaudible (300 Hz or less), it may be transmitted continuously only while the user is talking.
The FRS unit may transmit digital data containing location information, or requesting location information from one or more other FRS units, or containing a brief text message to another specific FRS unit. Digital data transmissions must be initiated by a manual action or command of the user. However, an FRS unit receiving an interrogation request may automatically respond with its location. Digital data transmissions shall not exceed 1 second, and shall be limited to one transmission within a 30-second period. However, an FRS unit may automatically respond to more than one interrogation request received within a 30-second period.
The peak frequency deviation shall not exceed ±2.5 kHz. The limiter shall be followed by a low-pass filter to remove unwanted harmonics.
A6.1.3 Emission Bandwidth
The authorized bandwidth for an FRS unit is 12.5 kHz.
A6.1.4 Output Power
The maximum permissible transmitter output power under any operating conditions is 0.5 W effective radiated power (e.r.p.). The radio shall be equipped with an integral antenna.
A6.1.5 Unwanted Emissions
Unwanted emissions shall be attenuated below the unmodulated carrier power in accordance with the following:
25 dB, measured with a bandwidth of 300 Hz, in the band 6.25 kHz to 12.5 kHz removed from the chan
35 dB, measured with a bandwidth of 300 Hz, in the band 12.5 kHz to 31.25 kHz removed from the chan and
43 dB + 10 log10 (carrier power in watts) dB, measured with a bandwidth of at least 30 kHz for frequencies beyond31.25 kHz removed from the channel centre frequency.
Unwanted emissions falling within the restricted bands of RSS-Gen shall be attenuated to the limits provided in this section or to the general field strength limits shown in RSS-Gen, whichever are less stringent.
A6.1.6 Frequency Stability
The carrier frequency tolerance shall be better than ±5 ppm.
A6.1.7 Other Restrictions
FRS units shall not be designed to interconnect to public switched networks.
FRS units shall not be designed to transmit data in store-and-forward packet operation mode.
A6.2 General Mobile Radio Service (GMRS) Devices
A6.2.1 Channel Frequencies
The following 15-channel carrier frequencies are available for simplex communications in the General Mobile Radio Service (GMRS):
General Mobile Radio Service (GMRS) Devices
– 15-channel carrier frequencies available for simplex communications in the General Mobile Radio Service (GMRS)
Frequency (MHz)
The following 8-channel carrier frequencies are reserved for possible future use as repeater input channels and are not available for simplex communications:
General Mobile Radio Service (GMRS) Devices – 8-channel carrier frequencies reserved for possible future use as repeater input channels and not available for simplex communications
Frequency (MHz)
A6.2.2 Emission Types and Modulation Requirements
GMRS transmitters are permitted to transmit only the following emission types: A1D, F1D, G1D, H1D, J1D, R1D, A3E, F3E, G3E, H3E, J3E, R3E or F2D. Non-voice emission is permitted only for selective calling or tone-operated squelch to establish or continue a voice communication, digital data transmission of location information or text messaging.
Non-voice communication shall be subject to the following restrictions:
A GMRS unit may transmit tones to make contact or to continue communications with a particular GMRS unit. If the tone is audible (greater than 300 Hz), it may be transmitted continuously no longer than 15 seconds at a time. If the tone is inaudible (300 Hz or less), it may be transmitted continuously only while the user is talking.
The GMRS unit may transmit digital data containing location information, or requesting location information from one or more other GMRS units, or containing a brief text message to another specific GMRSunit. Digital data transmissions must be initiated by a manual action or command of the user. However, a GMRS unit receiving an interrogation request may automatically respond with its location. Digital data transmissions shall not exceed 1 second, and shall be limited to one transmission within a 30-second period. However, a GMRS unit may automatically respond to more than one interrogation request received within a 30-second period.
For emission types F1D, G1D, G3E, F3E or F2D, the peak frequency deviation shall not exceed ±5 kHz.
GMRS transmitters must include an audio frequency low-pass filter, unless they comply with the appropriate emission masks in Section A6.2.5 below. The filter must be between the modulation limiter and the modulated stage of the transmitter. The filter attenuation must be as follows: for 3 kHz ≤ f ≤ 20 kHz, the attenuation is at least 60 log10(f, kHz/3) dB greater than the attenuation at 1 kHz; and for f & 20 kHz, the attenuation is at least 50 dB greater than the attenuation at1 kHz.
A6.2.3 Emission Bandwidth
The authorized bandwidth for emission types H1D, J1D, R1D, H3E, J3E and R3E is 4 kHz; for emission types A1D and A3E, it is 8 kHz; and for emission types F1D, G1D, F3E, G3E and F2D, it is 20 kHz.
A6.2.4 Output Power
A GMRS transmitter may transmit with a maximum power of 2.0 W e.r.p.
A6.2.5 Unwanted Emissions
Unwanted emissions shall be attenuated below the unmodulated carrier power in accordance with the following:
For emission types A1D, A3E, F1D, G1D, F3E, G3E and F2D with filtering:
25 dB, measured with a bandwidth of 300 Hz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 50%, up to and including 100% of the
35 dB, measured with a bandwidth of 300 Hz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 100%, up to and including 250% of the
43 dB + 10 log10(carrier power in watts) dB, measured with a bandwidth of at least 30 kHz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 250% of the authorized bandwidth.
For emission types A1D, A3E, F1D, G1D, F3E, G3E and F2D without filtering:
83 log10(fd/5) dB, measured with a bandwidth of 300 Hz, on any frequency removed from the centre frequency of the authorized bandwidth by a displacement frequency (fd in kHz) of more than 5 kHz, up to and including10 kHz;
116 log10(fd/6.1) dB (fd in kHz) measured with a bandwidth of 300 Hz, or if less, 50 + 10 log10(TP) dB (TP is total power in the emission bandwidth) on any frequency removed from the centre of the authorized bandwidth by a displacement frequency fd (kHz) of more than 10 kHz, up to and including 250% of the
43 dB + 10 log10(carrier power in watts) dB, measured with a bandwidth of at least 30 kHz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 250% of the authorized bandwidth.
For emission types H1D, J1D, R1D, H3E, J3E and R3E:
25 dB, measured with a bandwidth of 300 Hz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 50%, up to and including 150% of the
35 dB, measured with a bandwidth of 300 Hz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 150%, up to and including 250% of the
43 dB + 10 log10(carrier power in watts) dB, measured with a bandwidth of at least 30 kHz, on any frequency removed from the centre frequency of the authorized bandwidth by more than 250% of the authorized bandwidth.
Unwanted emissions falling within the restricted bands of RSS-Gen shall be attenuated to the limits provided in this section or to the general field strength limits shown in RSS-Gen, whichever are less stringent.
A6.2.6 Frequency Stability and Other Frequency Capability Requirements
The carrier frequency tolerance shall be better than ±5 ppm.
GMRS transmitters must be crystal controlled.
All frequency determining circuitry, including crystals and programming controls, must be internal to the transmitter and made inaccessible to the user from the exterior of the unit.
A6.2.7 Restrictions
GMRS units shall not be designed to interconnect to the public switched network.
GMRS units shall not be designed to transmit data in store-and-forward packet operation mode.
GMRS units shall not provide the user with the capability to receive on GMRS channels 16 to 23.
Annex 7 – Field Disturbance Sensors Operating in the Bands902–928 MHz,
MHz, 10.5–10.55 GHz and24.075–24.175 GHz
This annex sets out requirements permitting licence-exempt operation of field disturbance sensors in the frequency bands shown in the table below.
The emission limits stated below are based on measurement instrumentation employing an average detector.
Note: Perimeter protection systems, which employ a leaky transmission line as the radiating source, are excluded from the requirements of this annex.
The field strength measured at 3 metres shall not exceed the limits shown in the following table:
Field Disturbance Sensors Operating in the Bands902–928 MHz, MHz, MHz,10.5–10.55 GHzand24.075–24.175 GHz – The field strength measured at 3 metres shall not exceed the limits shown in the following table
Fundamental
Frequencies
Field Strength
(millivolts/m)
Additionally, harmonic emissions falling into a restricted band of <abbr title="General Requirements and Information for the Certification of Radio
Apparatus">RSS-Gen and below 17.7 GHz shall meet the general field strength limits of RSS-Gen.
Those falling into restricted bands above 17.7 GHz shall not exceed the following field strength limits measured at a distance of 3 metres:
25 mV/m for the second and third harmonics of field disturbance sensors operating in the 2 MHzband and for devices designed for use only within buildings or for intermittent use, such as to
7.5 mV/m for all other devices.
Field disturbance sensors designed to be used in motor vehicles or aircraft must include features to prevent continuous operation unless their emissions in the restricted bands of RSS-Gen, other than the second and third harmonics from devices operating in the band 2 MHz, comply with the general field strength limits specified in RSS-Gen. Continuous operation of field disturbance sensors designed to be used in farm equipment (i.e.vehicles such as fork lifts that are intended primarily for use indoors or for very specialized operations), or railroad locomotives, railroad cars, and other equipment which travels on fixed tracks, is permitted. A field disturbance sensor is considered not to be operating in a continuous mode if its operation is limited to specific activities of limited duration (e.g. putting a vehicle into reverse gear, activating a turn signal, etc.).
Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least50 dB below the level of the fundamental or to the general field strength limits specified in RSS-Gen, whichever is less stringent.
Note 4: Annex 8 & 9 are no longer applicable and are replaced by
(May 2015)
begin deletion
Annex 8 – Frequency Hopping and Digital Modulation Systems Operating in the Bands 902–928 MHz, .5 MHz and MHz
This annex applies to systems that employ frequency hopping (FH) and digital modulation technology in the bands902–928 MHz, .5 MHz and
MHz. Systems in these bands may employ frequency hopping, digital modulation and/or a combination (hybrid) of both techniques.
A frequency hopping system that synchronizes with another or several other systems (to avoid frequency collision among them) via off-air sensing or via connecting cables is not hopping randomly and therefore is not in compliance with RSS-210.
A8.1 Frequency Hopping Systems
Frequency hopping systems are spread spectrum systems in which the carrier is modulated with coded information in a conventional manner, causing a conventional spreading of the radio frequency (RF) energy about the carrier frequency. The frequency of the carrier is not fixed, but changes at fixed intervals under the direction of a coded sequence.
Frequency hopping systems are not required to employ all available hopping frequencies during each transmission. However, the system, consisting of both the transmitter and the receiver, must be designed to comply with all of the regulations in this section in case the transmitter is presented with a continuous data (or information) stream.
Incorporation of intelligence into a frequency hopping system that enables it to recognize other users of the band and to avoid occupied frequencies is permitted provided that the frequency hopping system does it individually, and independently chooses or adapts its hopset. The coordination of frequency hopping systems in any other manner for the express purpose of avoiding the simultaneous occupancy of individual hopping frequencies by multiple transmitters is not permitted.
The following ap