SRSP-302.0 — Technical Requirements for Fixed Line-of-Sight Radio Systems Operating in the Bands 2025-2110 MHz and 2200-2285 MHz

Issue 2
October 2013

Spectrum Management and Telecommunications
Standard Radio System Plan

Posted on Industry Canada website: October 11, 2013

Preface

Issue 2 of SRSP-302.0 has been released to reflect editorial updates. This SRSP-302.0, replaces SRSP-302.0, Issue 1.

The following are the main changes:

  1. Addition of quad-path diversity provision in Section 4.6.
  2. Addition of −13 dBm MHz provision for out-of-band masks in Section 5.5, Note 2.
  3. Addition of new orbital locations (see Section 10.3), namely:
    • 10.6° E, 16.8° E, 47° E, 59° E, 77° E, 80° E, 85° E, 89° E, 90.75° E, 95° E, 113° E, 121° E, 133° E, 171° E, 176.8° E, 12° W and 79° W.
  4. Numerous other editorial updates and improvements have been made.

Issued under the authority of
the Minister of Industry

space to insert full name
Marc Dupuis
Director General
Engineering, Planning and Standards Branch

Contents

1. Intent

1.1 This Standard Radio System Plan (SRSP) states the minimum technical requirements for the efficient use of the frequency bands 2025-2110 MHz and 2200-2285 MHz by medium, low and very low capacity digital line-of-sight radio systems and TV pick-up systems in the fixed service.

1.2 This SRSP is intended to be employed in the design and specification of radio systems and equipment, as well as in the technical evaluation of applications for new radio facilities or modification to radio systems submitted in accordance with the current issue of Radio Standards Procedure RSP-113, Application Procedures for Planned Radio Stations Above 960 MHz in the Fixed Service.

1.3 This SRSP specifies equipment characteristics related to efficient spectrum usage only, and is not to be regarded as a comprehensive specification for equipment design and/or selection.

2. General

2.1 This standard replaces SRSP-302.0, Issue 1. Further revision of this SRSP will be made as required.

2.2 Existing radio systems operating in the paired bands 2025-2110 MHz and 2200-2285 MHz that were licensed as standard prior to the issuance of this SRSP may continue to operate as standard. New systems deployed in the paired bands 2025-2110 MHz and 2200-2285 MHz must conform to the requirements of this standard.

2.3 Radio systems conforming to these technical requirements will be given priority in licensing over non-standard radio systems operating in this band.

2.4 The arrangements for non-standard systems are outlined in SP Gen, General Information Related to Spectrum Utilization and Radio Systems Policies.

2.5 The Geographical Differences Policy (GDP) guideline applies in this frequency band. More information on the GDP can be found in SP 1-20 GHz.

2.6 Even though a radio system complies with the requirements of this SRSP, modifications may be required to the system whenever harmful interference is caused.

2.7 When potential conflict between radio systems cannot be resolved by the parties concerned, Industry Canada should be advised. After consultation with these parties, the Department will determine the necessary modifications and schedule of modifications to resolve the conflict.

2.8 In cases of a potential interference conflict, Industry Canada may require licensees and/or applicants to use a receiver with improved selectivity characteristics.

2.9 Industry Canada encourages the use of a two-frequency plan for point-to-point applications whenever possible. Where reasonable economic or technical justification is provided (e.g. where siting prevents adequate antenna discrimination), extra frequencies may be used to resolve the problem, subject to the provisions of the GDP as referenced in Section 2.5.

2.10 It should be noted that the fixed terrestrial service shares this band with other services in accordance with the Canadian Table of Frequency Allocations 9 kHz to 275 GHz.

2.11 TV pick-ups share the band 2025-2110 MHz with point-to-point systems on an urban-rural basis, as outlined in Section 4.1.4.

2.12 In uncongested rural or remote areas, subscriber radio systems may be authorized under the GDP guideline.

2.13 Subscriber radio systems (SRS) may continue to be authorized in the bands 2025-2110 MHz and 2200-2285 MHz in remote and distant rural areas under the provisions of the GDP guidelineFootnote1

3. Related Documents

3.1 The current issues of the following documents are applicable and available on Industry Canada’s Spectrum Management and Telecommunications website at http://www.ic.gc.ca/spectrum.






Safety Code 6
Limits of Human Exposure to Radiofrequency Electromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, available through Health Canada's website at http://www.hc-sc.gc.ca .


space to insert full name

SP — Spectrum Utilization Policy
RSP — Radio Standards Procedure
TRC — Telecommunications Regulation Circular
CTFA — Canadian Table of Frequency Allocations
CPC — Client Procedures Circular

4. Radio Frequency (RF) Channel Arrangement Description

4.1 RF Channel Plans for Medium Capacity, Low Capacity and Very Low Capacity Radio Systems

The channel plans defined in this standard provide for six RF channel bandwidths. Channel pairs are provided with a common transmit/receive separation of 175 MHz.

The allowable channel bandwidths are:

  • greater than 7.5 MHz and less than or equal to 10 MHz;
  • greater than 5 MHz and less than or equal to 7.5 MHz;
  • greater than 2.5 MHz and less than or equal to 5 MHz;
  • greater than 1.25 MHz and less than or equal to 2.5 MHz;
  • greater than 50 kHz and less than or equal to 1.25 MHz; and
  • less than or equal to 50 kHz.

4.1.1 RF Channel Centre Frequencies — Medium Capacity Radio Systems

The centre frequencies of the eight paired channels which allow RF channel bandwidths greater than 7.5 MHz and less than or equal to 10 MHz are expressed by the following relationships:

Lower half of the band An = 2022.5 + 10nfor n = 1 to 8
Upper half of the band A'n = 2197.5 + 10nfor n = 1 to 8

where n is the channel number and An and A'n are the centre frequencies (in megahertz) of the paired channels.

4.1.1.1 If it can be demonstrated that an incremental channel is needed for growth, a 20 MHz channel comprised of two adjacent 10 MHz channels, may be permitted on a case-by-case basis, subject to the availability of assignments.

4.1.2 Channel Centre Frequencies — Low Capacity Radio Systems

(a) The centre frequencies of the 11 paired channels which allow RF channel bandwidths greater than 5 MHz and less than or equal to 7.5 MHz are expressed by the following relationships:

Lower half of the band Bn = 2022.5 + 7.5nfor n = 1 to 11
Upper half of the band B'n = 2197.5 + 7.5nfor n = 1 to 11

where n is the channel number and Bn and B'n are the centre frequencies (in megahertz) of the paired channels.

(b) The centre frequencies of the 16 paired channels which allow RF channel bandwidths greater than 2.5 MHz and less than or equal to 5 MHz are expressed by the following relationships:

Lower half of the band Cn = 2025 + 5nfor n = 1 to 16
Upper half of the band C'n = 2200 + 5nfor n = 1 to 16

where n is the channel number and Cn and C'n are the centre frequencies (in megahertz) of the paired channels.

(c) The centre frequencies of the 33 paired channels which allow RF channel bandwidths greater than 1.25 MHz and less than or equal to 2.5 MHz are expressed by the following relationships:

Lower half of the band Dn = 2025 + 2.5nfor n = 1 to 33
Upper half of the band D'n = 2200 + 2.5nfor n = 1 to 33

where n is the channel number and Dn and D'n are the centre frequencies (in megahertz) of the paired channels.

(d) The centre frequencies of the 66 paired channels which allow RF channel bandwidths greater than 50 kHz and less than or equal to 1.25 MHz are expressed by the following relationships:

Lower half of the band En = 2025 + 1.25nfor n = 1 to 66
Upper half of the band E'n = 2200 + 1.25nfor n = 1 to 66

where n is the channel number and En and E'n are the centre frequencies (in megahertz) of the paired channels.

4.1.3 RF Channel Centre Frequencies — Very Low Capacity Radio Systems

The centre frequencies of the 200 paired channels which allow RF channel bandwidths less than or equal to 50 kHz are expressed by the following relationships:

Lower half of the band Fn = 2025.975 + 0.05nfor n = 1 to 200
Upper half of the band F'n = 2200.975 + 0.05nfor n = 1 to 200

where n is the channel number and Fn and F'n are the centre frequencies (in megahertz) of the paired channels.

4.1.4 TV Pick-up Channel Assignments

The preferred channel plan defined in this standard (see Table C2) provides for the development of TV pick-up systems transmitting up to seven 12 MHz one-way RF channels in the band 2025-2110 MHz. In the major metropolitan areas of greater Toronto, Montréal and Vancouver, preference will be given to TV pick-ups. Elsewhere, the level of priority access given to TV pick-ups will be at the discretion of the regional offices. To the extent possible, TV pick-up usage should avoid the spectrum designated for very low capacity systems.

Lower half of the band G(n) = 2019.5 + 12n

where: n = 1 to 7, and G(n) is the centre frequency of the channel.

Due to the large area affected by helicopter usage of TV pick-ups, some restrictions on the number of TV pick-up channels available for this application may be applied by Industry Canada's regional offices. These restrictions may be based on consideration of factors such as frequency assignment reuse, availability of assignments in other TV pick-up bands and coexistence with point-to-point systems.

Note: The TV pick-up channel plan is harmonized with United States, and may be modified in accordance with future changes and availability of equipment.

4.2 Branching or Spur Route Channels

The frequencies assigned to a main route system should be reused on the branching or spur routes where possible. The siting of repeater stations should be planned with this requirement in mind to ensure sufficient antenna discrimination at the branch-off angle.

4.3 Closed Loops

Systems must be designed so that any closed loop will consist of an even number of hops to permit the use of two frequency plans.

4.4 Assignment of Frequencies

New medium capacity systems in this band should use the highest available frequency pair that can be successfully coordinated starting at channels A8 and A8'. New low capacity systems in this band should use the lowest available frequency pair that can be successfully coordinated starting at channels B2 and B2', C3 and C3', D4 and D4', or E7 and E7'.

However, due to varying conditions and circumstances across Canada, regional offices may assign frequencies using a procedure different from the one described above, at their own discretion.

4.5 Spectral Efficiency

Digital systems submitted for licensing shall have a minimum spectral efficiency of 2.4 bits/s/Hz on a single polarization in a bandwidth corresponding to the channel spacing for medium capacity systems and at least 0.6 bit/s/Hz for low and very low capacity systems on a single polarization in a bandwidth corresponding to the channel spacing.

4.6 Protection Channels

  1. One protection channel will normally be permitted for systems with more than one working channel.
  2. Quad-path diversity Footnote 2 applications will be considered on a hop-by-hop basis to solve special propagation problems.

5. Transmitter Characteristics

5.1 Use of automatic transmit power control (ATPC) is encouraged in these bands. The nominal transmitter power should be a minimum of 10 dB below the maximum rated transmitter power.

5.2 The transmitter power delivered to the antenna input per RF channel shall not exceed the following limit for each bandwidth:

Table 1: Transmitter Power Limits
Bandwidth MHz Power Limit
(Watts) (dBW)
10 10.0 +10
7 10.0 +10
5 5.0 +7
2.5 2.0 +3
1.25 1.0 0
0.05 1.0 0

5.3 An increase in transmitter power over the above-specified limit may be permitted if technical justification is provided. In no event will the power delivered to the antenna input be permitted to exceed 20 watts (+13 dBW) per channel.

5.4 The centre frequency of the emission shall be maintained within ± 0.001 % of the assigned frequency.

5.5 Emission Limits for Medium Capacity Radio Systems

(a) In any 4 kHz band, where the centre frequency is removed from the assigned frequency by more than 50%, up to and including 250% of the authorized bandwidth, the mean power of emissions shall be attenuated below the mean output power of the transmitter in accordance with the following equation.

A = 35 + 0.8 (P – 50) + 10 log10B

where

A = attenuation (in dB) below the mean output power level
P = percent removed from the centre frequency of the assigned RF channel
B = authorized bandwidth (in MHz)

Note:

  1. In no case shall the attenuation be less than 50 dB.
  2. Attenuation greater than 80 dB or to an absolute power of less than −13 dBm/MHz is not necessary.

(b) In any 4 kHz band, where the centre frequency is removed from the assigned frequency by more than 250% of the authorized bandwidth, the mean power of emissions shall be attenuated by 43 + 10 log10 (mean output power in watts) dB or 80 dB, whichever is the lesser attenuation.

5.6 Other Systems

For low capacity, very low capacity and TV pick-up systems, at least 99% of the power from the transmitter shall be contained within the licensed bandwidth.

6. International Coordination

Stations located in the band 2025-2110 MHz are subject to the provisions of Arrangement A, and stations located in the band 2200-2285 MHz are subject to the provisions of Arrangement D between Canada and the United States for frequency coordination with systems deployed in the United States.

7. Coexistence with Mobile Radio Systems in Adjacent Bands

Coordination may be required with licensees in adjacent bands. In this context, coordination involves consultation between operators to ensure the coexistence between systems in adjacent bands. Licensees should consult Industry Canada for the most up-to-date list of operators in the area.

Possible interference conflicts resulting from the operation of AWS and radio systems in adjacent bands may occur. The resolution of those conflicts should be arrived at through mutual arrangements between the affected parties following consultation and coordination.

When potential conflicts between systems cannot be resolved in a timely fashion, Industry Canada shall be so advised, whereupon following consultations with the parties concerned, the Department will determine the necessary course of action.

7.1 Mobile Radio Systems Operating Above 2110 MHz

Mobile radio systems operate above 2110 MHz in accordance with SRSP-513, Technical Requirements for Advanced Wireless Services in the Bands 1710-1755 MHz and 2110-2155 MHz. Coordination may be required between these systems and fixed stations operating in channels just below 2110 MHz, such as A8, B11, C16, D32, D33, E64, E65 and E66 (as shown in Annex C, Table C1).

8. Antenna Characteristics

8.1 With regard to medium capacity radio systems, the co-polarized radiation pattern envelope in the horizontal plane of the antenna must remain within envelope B shown in Figure A1 and Table A1, for both vertical and horizontal polarization.

8.2 With regard to low capacity radio systems, the co-polarized radiation pattern envelope in the horizontal plane of the antenna must remain within envelope C shown in Figure B1 and Table B1, for both vertical and horizontal polarization.

8.3 With regard to very low capacity radio systems, the co-polarized radiation pattern envelope in the horizontal plane of the antenna must remain within envelope D shown in Figure B1 and Table B1, for both vertical and horizontal polarization.

8.4 With regard to low and medium capacity radio systems in moderately and highly congested areas (as defined in the GDP referenced in Section 2.5), the co-polarized radiation pattern envelope in the horizontal plane of the antenna must remain within envelope A shown in Figure A1 and Table A1, for both vertical and horizontal polarization.

8.5 With regard to TV pick-up systems, the use of highly directive antenna systems is encouraged.

9. Maximum Equivalent Isotropically Radiated Power (e.i.r.p.)

9.1 The e.i.r.p. from the antenna must not in any case exceed +55 dBW per RF channel.

10. Avoidance of the Geostationary-Satellite Orbit (GSO)

10.1 As far as practicable, sites for transmitting terrestrial stations operating in the fixed service employing a maximum e.i.r.p. value exceeding +8 dBW Footnote 3 in the frequency band 2200-2285 MHz, should avoid radiating towards the geostationary-satellite orbit locations listed in Section 10.3, taking into account the effect of atmospheric refraction. This restriction may be exceeded up to 0.1% of the time by fixed service stations employing ATPC. Footnote 4

10.2 Those fixed service transmit stations which do not employ ATPC and are unable to comply with paragraph 10.1 should operate in the lower part of the band 2200-2285 MHz if channels are available.

10.3 To protect against geostationary-satellite space station emissions, Footnote 5 users of fixed service station receive antennas in the band 2025-2110 MHz should take into consideration the following specific locations on the geostationary-satellite orbit: Footnote 6

10.6° E, 16.4° E, 16.8° E, 21.5° E, 47° E, 59° E, 77° E, 80° E, 85° E, 89° E, 90.75° E, 95° E, 113° E, 121° E, 133° E, 160° E, 171° E, 176.8° E and 177.5° E, 12° W, 16° W, 32° W, 41° W, 44° W, 46° W, 49° W, 62° W, 79° W, 139° W, 160° W, 170° W, 171° W and 174° W.


Annex A: Minimum Antenna Characteristics for Medium Capacity Radio Systems (Envelope B); and for Low and Medium Capacity Radio Systems in Congested Areas (Envelope A)

Figure A1: Minimum Antenna Characteristics for Medium Capacity Radio Systems (Envelope B); and for Low and Medium Capacity Radio Systems in Congested Areas (Envelope A)
Photo of Figure A1: This is a graphical representation of Table A1

Table A1: Minimum Antenna Characteristics for Medium Capacity Radio Systems (Envelope B); and for Low and Medium Capacity Radio Systems in Congested Areas (Envelope A)
Envelope A Envelope B
Azimuth in Degrees from Main Lobe Antenna Directivity in dB down from Main Lobe Azimuth in Degrees from Main Lobe Antenna Directivity in dB down from Main Lobe
0 0
6.5° -9 6.5° -19
13.5° -21 13.5° -21
20° -26 20° -26
47.5° -37 45° -36
82.5° -39 87.5° -36
107.5° -57 112.5° -46
180° -57 180° -46

Annex B: Minimum Antenna Characteristics for Low Capacity Radio Systems (Envelope C); and for Very Low Capacity Radio Systems (Envelope D)

Figure B1: Minimum Antenna Characteristics for Low Capacity Radio Systems (Envelope C); and for Very Low Capacity Radio Systems (Envelope D)
Photo of Figure B1: This is a graphical representation of Table B1

Table B1: Minimum Antenna Characteristics for Low Capacity Radio Systems (Envelope C); and for Very Low Capacity Radio Systems (Envelope D)
Envelope C Envelope D
Azimuth in Degrees from Main Lobe Antenna Directivity in dB down from Main Lobe Azimuth in Degrees from Main Lobe Antenna Directivity in dB down from Main Lobe
0 0
10.5° -17 -1
17.5° -17 20° -12
20° -18 30° -14
62.5° -29 40° -18
107.5° -29 107.5° -18
127.5° -37 117.5° -24
180° -37 150° -24
152.5° -26
180° -26

Annex C: Channel Identification and Carrier Frequencies for Medium and Low Capacity Radio Systems Operating in the Bands 2025-2110 MHz and 2200-2285 MHz

Table C1: Channel Identification and Carrier Frequencies for Medium and Low Capacity Radio Systems Using 175 MHz Wide Channel Bandwidths
Frequency (MHz) GO Channels Frequency (MHz) Return Channels
Channel Spacing (MHz) Channel Spacing (MHz)
10 7.5 5 2.5 1.25 10 7.5 5 2.5 1.25
2026.25 E1 2201.25 E1'
2027.50 D1 E2 2202.55 D1' E2'
2028.75 E3 2203.75 E3'
2030.00 B1 C1 D2 E4 2205.00 B1' C1' D2' E4'
2031.25 E5 2206.25 E5'
2032.50 A1 D3 E6 2207.50 A1' D3' E6'
2033.75 E7 2208.75 E7'
2035.00 C2 D4 E8 2210.00 C2' D4' E8'
2036.25 E9 2211.25 E9'
2037.50 B2 D5 E10 2212.50 B2' D5' E10'
2038.75 E11 2213.75 E11'
2040.00 C3 D6 E12 2215.00 C3' D6' E12'
2041.25 E13 2216.25 E13'
2042.50 A2 D7 E14 2217.50 A2' D7' E14'
2043.75 E15 2218.75 E15'
2045.00 B3 C4 D8 E16 2220.00 B3' C4' D8' E16'
2046.25 E17 2221.25 E17'
2047.50 D9 E18 2222.50 D9' E18'
2048.75 E19 2223.75 E19'
2050.00 C5 D10 E20 2225.00 C5' D10' E20'
2051.25 E21 2226.25 E21'
2052.50 A3 B4 D11 E22 2227.50 A3' B4' E22' E22'
2053.75 E23 2228.75 E23'
2055.00 C6 D12 E24 2230.00 C6' D12' E24'
2056.25 E25 2231.25 E25'
2057.50 D13 E26 2232.50 D13' E26'
2058.75 E27 2233.75 E27'
2060.00 B5 C7 D14 E28 2235.00 B5' C7' D14' E28'
2061.25 E29 2236.25 E29'
2062.50 A4 D15 E30 2237.50 A4' D15' E30'
2063.75 E31 2238.75 E31'
2065.00 C8 D16 E32 2240.00 C8' D16' E32'
2066.25 E33 2241.25 E33'
2067.50 B6 D17 E34 2242.50 B6' D17' E34'
2068.75 E35 2243.75 E35'
2070.00 C9 D18 E36 2245.00 C9' D18' E36'
2071.25 E37 2246.25 E37'
2072.50 A5 D19 E38 2247.50 A5' D19' E38'
2073.75 E39 2248.75 E39'
2075.00 B7 C10 D20 E40 2250.00 B7' C10'> D20' E40'
2076.25 E41 2251.25 E41'
2077.50 D21 E42 2252.50 D21' E42'
2078.75 E43 2253.75 E43'
2080.00 C11 D22 E44 2255.00 C11' D22' E44'
2081.25 E45 2256.25 E45'
2082.50 A6 B8 D23 E46 2257.50 A6' B8' D23' E46'
2083.75 E47 2258.75 E47'
2085.00 C12 D24 E48 2260.00 C12' D24' E48'
2086.25 E49 2261.25 E49'
2087.50 D25 E50 2262.50 D25' E50'
2088.75 E51 2263.75 E51'
2090.00 B9 C13 D26 E52 2265.00 B9' C13'> D26' E52'
2091.25 E53 2266.25 E53'
2092.50 A7 D27 E54 2267.50 A7' D27' E54'
2093.75 E55 2268.75 E55'
2095.00 C14 D28 E56 2270.00 C14' D28' E56'
2096.25 E57 2271.25 E57'
2097.50 B10 D29 E58 2272.50 B10' D29' E58'
2098.75 E59 2273.75 E59'
2100.00 C15 D30 E60 2275.00 C15' D30' E60'
2101.25 E61 2276.25 E61'
2102.50 A8 D31 E62 2277.50 A8' D31' E62'
2103.75 E63 2278.75 E63'
2105.00 B11 C16 D32 E64 2280.00 B11' C16' D32' E64'
2106.25 E65 2281.25 E65'
2107.50 D33 E66 2282.50 D33' E66'

Table C2: Upper 2 GHz TV Pick-up Frequency Plan
Pick-up Channels
G1 2031.50
G2 2043.50
G3 2055.50
G4 2067.50
G5 2079.50
G6 2091.50
G7 2103.50

Date modified: