Community Audio Distribution Service

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CADS or WPAS 26 MHz 27 MHz church radio parish Irish churches on 27 MHz CB radio - Wireless Public Address Service UK Ireland Northern Ireland

See also the 11 meter band, CB, Remote Control and HF pagers. Note that the 27 MHz / 11 meter CB radio band is used for similar purposes in many other locations aside from the UK and Ireland. Other bands are used for similar purposes, including the FM broadcast band, 40 MHz license free/ISM band 40.66 MHz - 40.70 MHz and the 43 MHz band Italian 43MHz VHF CB radio service.

For prldx's excellent list of WPAS/CADS 27 MHz Church Radio stations/broadcasts and logs, see this link:

[1]

For Harri Kujala's 27 MHz Parish Radio / Church Radio list (collection), logs, letters and emails from parishes confirming QSL of their specific parish radio broadcast - often referred to as a "parish radio link" or "parish radio service" - see this link:

[2]

Contents 1 Overview - Scope, Technical Specifications 2 Bands 3 CADS/WPAS Frequencies: UK 27/81 LW and UW Channels 4 CADS/WPAS Frequencies: CEPT CB Band or "Mid band" 5 CADS WPAS Church Radio Parish Frequencies Overlapping Channels In Order 6 Further Reading - Regulations, Technical Requirements, Frequency Allocations

Overview - Scope, Technical Specifications

CADS, also known as the Wireless Public Address System (WPAS) in the Republic of Ireland. Church Radio re-broadcast service, AM and FM modes allowed, using CB-type equipment and frequency bands.

Both the CADS and WPAS services are very popular in Ireland and Northern Ireland. The fact that churches are continuing to upgrade their transmitters and antennas as well as changing frequencies to avoid interference attests to the continued popularity of 27 MHz CB church parish radio links.

Three "bands" in (legal) use, the regular CB band 26.960 MHz - 27.410 MHz / 26.965-27.405 MHz, the UK FM "27/81" band 27.60125 MHz to 27.99125 MHz (defined under Irish and UK law as 27.596125 MHz to 27.99625 MHz) and the "UW band" 27.605-27.995 MHz (27.6 MHz to 28.0 MHz) Church services have been heard outside these band limits, often in the 27.405 MHz to 27.600 MHz portion and below 26.965 MHz (CB channel 1). Some churches use modified "export radios" which, instead of observing the UK FM offset, transmit on the "zeros" instead (i.e., operating on 27.800 MHz instead of 27.80125 MHz). Since the difference between UK FM offset and the zero offset is only 1.25 kHz and FM is used, this usually makes very little to no difference to the (local) receivers the church transmission is meant for. Examples include 27.729 MHz or 27.730 MHz instead of the 27.73125 MHz center frequency. 27.980 MHz AM is included in logs, even though the UK FM band prohibits use of AM mode, this would indicate use of "export" specification radios or multi-country radios set for "RU" or "Russia" mode.

Sometimes offset frequencies are used within the CEPT 40 CB channels, for example 27.161 MHz or 27.160 MHz instead of 27.155 MHz or 27.165 MHz. 27.301 MHz, 27.319 MHz, 27.330 MHz, 27.332 MHz have also been logged. Out of band church parish radio link logs include 27.000 MHz, 27.425 MHz, 27.435 MHz, 27.505 MHz and 27.515 MHz. The vast majority of activity is found within the 27.600 MHz - 27.995 MHz CADS/WPAS/UK FM 27/81 CB band and the 26.965 MHz - 27.405 MHz mid band FM CEPT European standard CB band.

The vast majority of parish radio broadcasts use FM mode, although AM is sometimes used.

Note that these frequencies are used outside Ireland and the United Kingdom for similar services, regular two-way CB communications, R/C purposes, data links and paging networks.

CADS operates on the 80 UK CB channels (standard CB channels 1-40 and UK FM CB channels 1-40) so 26965-27405 and 27601.25-27991.25 FM mode only. UK law defines the 27/81 UK FM CB band as 27.59625 MHz to 27.99625 MHz (5 kHz down from UK CB channel 1 and 5 kHz up from UK CB channel 40, effectively 27.600 MHz to 28.000 MHz). The mid band CEPT/EU band is defined as 26.960 MHz to 27.410 MHz. Ireland's WPAS service operates on two sets of 40 interleaved channels for a total of 80 channels. Although not technically authorized in Ireland, Churches often use the standard 40 "mid band CB" or "CEPT CB" channels as well. Ireland allows use of AM and FM on all 80 channels as part of the WPAS system, while FM is the only mode allowed in the UK. When added to the 40 mid band CB channels 26.965 to 27.405 a total of 120 channels becomes available. In practice, however, the very small offset between the two overlapping channels means users need to be at least one channel away from each other if they are in the immediate area.

In practice, several churches will share frequencies or use offset channels and/or channels in between the 26.965-27.405 MHz range and the 27.60125-27.99125 MHz / 27.605-27.995 MHz range. Narrow FM mode with 2.5 kHz to 5 kHz deviation is the standard, with some variation in deviation depending on the manufacturer and model of the radio transmitter used and when the radio was manufactured. AM mode is the standard 6 kHz to 8 kHz wide A3E emission 6K00A3E or 8K00A3E - although the de facto CB bandwidth is 10 kHz for AM and FM modes (10K0F3E for FM).

WPAS regulations allow for 1 watt carrier power in AM mode (4 watts peak PEP power) or 4 watts power in FM mode. Antennas must be vertically polarized and exhibit no more than 3db gain. Antenna gain is expressed as dbd. ComReg (Ireland’s telecommunications regulatory agency) also prohibits mounting antennas higher than 10 meters above local terrain. Apparently this rule is frequently ignored with antennas mounted on church steeples, etc. for maximum local coverage range.

Bands

Band	Frequencies (channel center frequencies)	Frequencies (band limits)
CB Band Mid Band CEPT EU Band	26.965 MHz - 27.405 MHz	26.960 MHz - 27.410 MHz
UK Band UK FM 27/81 CB LW Band	27.60125 MHz - 27.99125 MHz	27.59625 MHz - 27.99625 MHz
LW Band	27.60125 MHz - 27.99125 MHz	27.600 MHz - 27.995 MHz
UW Band (Ireland)	27.605 MHz - 27.995 MHz	27.6 MHz - 28 MHz

CADS/WPAS Frequencies: UK 27/81 LW and UW Channels

Note: Ireland’s ComReg technically allows use of AM mode on the LW frequencies (UK 27/81 FM CB band). AM is not permitted in the U.K. on the UK FM 27/81 CB frequencies.

WPAS Channel	Frequency MHz	Frequency kHz
Channel LW01	27.60125 MHz 27.601 MHz	27601.25 kHz
Channel LW02	27.61125 MHz 27.611 MHz	27611.25 kHz
Channel LW03	27.62125 MHz 27.621 MHz	27621.25 kHz
Channel LW04	27.63125 MHz 27.631 MHz	27631.25 kHz
Channel LW05	27.64125 MHz 27.641 MHz	27641.25 kHz
Channel LW06	27.65125 MHz 27.651 MHz	27651.25 kHz
Channel LW07	27.66125 MHz 27.661 MHz	27661.25 kHz
Channel LW08	27.67125 MHz 27.671 MHz	27671.25 kHz
Channel LW09	27.68125 MHz 27.681 MHz	27681.25 kHz
Channel LW10	27.69125 MHz 27.691 MHz	27691.25 kHz
Channel LW11	27.70125 MHz 27.701 MHz	27701.25 kHz
Channel LW12	27.71125 MHz 27.711 MHz	27711.25 kHz
Channel LW13	27.72125 MHz 27.721 MHz	27721.25 kHz
Channel LW14	27.73125 MHz 27.731 MHz	27731.25 kHz
Channel LW15	27.74125 MHz 27.741 MHz	27741.25 kHz
Channel LW16	27.75125 MHz 27.751 MHz	27751.25 kHz
Channel LW17	27.76125 MHz 27.761 MHz	27761.25 kHz
Channel LW18	27.77125 MHz 27.771 MHz	27771.25 kHz
Channel LW19	27.78125 MHz 27.781 MHz	27781.25 kHz
Channel LW20	27.79125 MHz 27.791 MHz	27791.25 kHz
Channel LW21	27.80125 MHz 27.801 MHz	27801.25 kHz
Channel LW22	27.81125 MHz 27.811 MHz	27811.25 kHz
Channel LW23	27.82125 MHz 27.821 MHz	27821.25 kHz
Channel LW24	27.83125 MHz 27.831 MHz	27831.25 kHz
Channel LW25	27.84125 MHz 27.841 MHz	27841.25 kHz
Channel LW26	27.85125 MHz 27.851 MHz	27851.25 kHz
Channel LW27	27.86125 MHz 27.861 MHz	27861.25 kHz
Channel LW28	27.87125 MHz 27.871 MHz	27871.25 kHz
Channel LW29	27.88125 MHz 27.881 MHz	27881.25 kHz
Channel LW30	27.89125 MHz 27.891 MHz	27891.25 kHz
Channel LW31	27.90125 MHz 27.901 MHz	27901.25 kHz
Channel LW32	27.91125 MHz 27.911 MHz	27911.25 kHz
Channel LW33	27.92125 MHz 27.921 MHz	27921.25 kHz
Channel LW34	27.93125 MHz 27.931 MHz	27931.25 kHz
Channel LW35	27.94125 MHz 27.941 MHz	27941.25 kHz
Channel LW36	27.95125 MHz 27.951 MHz	27951.25 kHz
Channel LW37	27.96125 MHz 27.961 MHz	27961.25 kHz
Channel LW38	27.97125 MHz 27.971 MHz	27971.25 kHz
Channel LW39	27.98125 MHz 27.981 MHz	27981.25 kHz
Channel LW40	27.99125 MHz 27.991 MHz	27991.25 kHz
Channel UW01	27.605 MHz	27605 kHz
Channel UW02	27.615 MHz	27615 kHz
Channel UW03	27.625 MHz	27625 kHz
Channel UW04	27.635 MHz	27635 kHz
Channel UW05	27.645 MHz	27645 kHz
Channel UW06	27.655 MHz	27655 kHz
Channel UW07	27.665 MHz	27665 kHz
Channel UW08	27.675 MHz	27675 kHz
Channel UW09	27.685 MHz	27685 kHz
Channel UW10	27.695 MHz	27695 kHz
Channel UW11	27.705 MHz	27705 kHz
Channel UW12	27.715 MHz	27715 kHz
Channel UW13	27.725 MHz	27725 kHz
Channel UW14	27.735 MHz	27735 kHz
Channel UW15	27.745 MHz	27745 kHz
Channel UW16	27.755 MHz	27755 kHz
Channel UW17	27.765 MHz	27765 kHz
Channel UW18	27.775 MHz	27775 kHz
Channel UW19	27.785 MHz	27785 kHz
Channel UW20	27.795 MHz	27795 kHz
Channel UW21	27.805 MHz	27805 kHz
Channel UW22	27.815 MHz	27815 kHz
Channel UW23	27.825 MHz	27825 kHz
Channel UW24	27.835 MHz	27835 kHz
Channel UW25	27.845 MHz	27845 kHz
Channel UW26	27.855 MHz	27855 kHz
Channel UW27	27.865 MHz	27865 kHz
Channel UW28	27.875 MHz	27875 kHz
Channel UW29	27.885 MHz	27885 kHz
Channel UW30	27.895 MHz	27895 kHz
Channel UW31	27.905 MHz	27905 kHz
Channel UW32	27.915 MHz	27915 kHz
Channel UW33	27.925 MHz	27925 kHz
Channel UW34	27.935 MHz	27935 kHz
Channel UW35	27.945 MHz	27945 kHz
Channel UW36	27.955 MHz	27955 kHz
Channel UW37	27.965 MHz	27965 kHz
Channel UW38	27.975 MHz	27975 kHz
Channel UW39	27.985 MHz	27985 kHz
Channel UW40	27.995 MHz	27995 kHz

CADS/WPAS Frequencies: CEPT CB Band or "Mid band"

Mid Band CB UK, Europe, Ireland (used unofficially in Ireland) Defined under UK and Irish law as "26.96 MHz to 27.41 MHz"

CB Channel	Frequency
Channel 01	26.965 MHz
Channel 02	26.975 MHz
Channel 03	26.985 MHz
Channel 04	27.005 MHz
Channel 05	27.015 MHz
Channel 06	27.025 MHz
Channel 07	27.035 MHz
Channel 08	27.055 MHz
Channel 09	27.065 MHz
Channel 10	27.075 MHz
Channel 11	27.085 MHz
Channel 12	27.105 MHz
Channel 13	27.115 MHz
Channel 14	27.125 MHz
Channel 15	27.135 MHz
Channel 16	27.155 MHz
Channel 17	27.165 MHz
Channel 18	27.185 MHz
Channel 19	27.185 MHz
Channel 20	27.205 MHz
Channel 21	27.215 MHz
Channel 22	27.225 MHz
Channel 23	27.255 MHz
Channel 24	27.235 MHz
Channel 25	27.245 MHz
Channel 26	27.265 MHz
Channel 27	27.275 MHz
Channel 28	27.285 MHz
Channel 29	27.295 MHz
Channel 30	27.305 MHz
Channel 31	27.315 MHz
Channel 32	27.325 MHz
Channel 33	27.335 MHz
Channel 34	27.345 MHz
Channel 35	27.355 MHz
Channel 36	27.365 MHz
Channel 37	27.375 MHz
Channel 38	27.385 MHz
Channel 39	27.395 MHz
Channel 40	27.405 MHz

CADS WPAS Church Radio Parish Frequencies Overlapping Channels In Order

Irish legislation specifically indicates 10 kHz channel bandwidth +/- 5 kHz from center frequency, so 27.605 MHz covers 27.600 MHz - 27.610 MHz, 27.60125 MHz covers 27.59625 MHz to 27.60625 MHz, 27.995 MHz covers 27.990 MHz - 28.000 MHz, 27.99125 MHz covers 27.98625 MHz - 27.99625 MHz. However, ComReg rules state the frequency spectrum for WPAS is 27.6 MHz to 27.99 MHz, leaving out the 27.99 MHz to 28.0 MHz slice that covers LW40 and UW40 channels 27.99125 MHz and 27.995 MHz.

• 26.175 MHz - Begin FIXED/MOBILE band (on-site paging, low power devices, short range devices, remote control, remote broadcast pickup and studio audio links Citizen Band Radio) 26175 - 27500 kHz
• 26.350 MHz - UK begin FIXED/MOBILE band to 27.5 MHz (shared with paging, data, telemetry links, military users, and of course the CEPT/EU and US standard 40 channel "mid band" CB radio channels).
• 26.960 MHz - begin CB band / CADS mid band, same as EU CB band and US FCC CB radio channel plan
• 26.965 MHz - CB01 - CB Radio Channel 1
• 26.975 MHz - CB02 - CB Radio Channel 2
• 26.985 MHz - CB03 - CB Radio Channel 3
• 27.005 MHz - CB04 - CB Radio Channel 4
• 27.015 MHz - CB05 - CB Radio Channel 5
• 27.025 MHz - CB06 - CB Radio Channel 6
• 27.035 MHz - CB07 - CB Radio Channel 7
• 27.055 MHz - CB08 - CB Radio Channel 8
• 27.065 MHz - CB09 - CB Radio Channel 9
• 27.075 MHz - CB10 - CB Radio Channel 10
• 27.085 MHz - CB11 - CB Radio Channel 11
• 27.105 MHz - CB12 - CB Radio Channel 12
• 27.115 MHz - CB13 - CB Radio Channel 13
• 27.125 MHz - CB14 - CB Radio Channel 14
• 27.135 MHz - CB15 - CB Radio Channel 15
• 27.155 MHz - CB16 - CB Radio Channel 16
• 27.165 MHz - CB17 - CB Radio Channel 17
• 27.175 MHz - CB18 - CB Radio Channel 18
• 27.185 MHz - CB19 - CB Radio Channel 19
• 27.205 MHz - CB20 - CB Radio Channel 20
• 27.215 MHz - CB21 - CB Radio Channel 21
• 27.225 MHz - CB22 - CB Radio Channel 22
• 27.235 MHz - CB24 - CB Radio Channel 24
• 27.245 MHz - CB25 - CB Radio Channel 25
• 27.255 MHz - CB23 - CB Radio Channel 23
• 27.265 MHz - CB25 - CB Radio Channel 26
• 27.275 MHz - CB27 - CB Radio Channel 27
• 27.285 MHz - CB28 - CB Radio Channel 28
• 27.295 MHz - CB29 - CB Radio Channel 29
• 27.305 MHz - CB30 - CB Radio Channel 30
• 27.315 MHz - CB31 - CB Radio Channel 31
• 27.325 MHz - CB32 - CB Radio Channel 32
• 27.335 MHz - CB33 - CB Radio Channel 33
• 27.345 MHz - CB34 - CB Radio Channel 34
• 27.355 MHz - CB35 - CB Radio Channel 35
• 27.365 MHz - CB36 - CB Radio Channel 36
• 27.375 MHz - CB37 - CB Radio Channel 37
• 27.385 MHz - CB38 - CB Radio Channel 38
• 27.395 MHz - CB39 - CB Radio Channel 39
• 27.405 MHz - CB40 - CB Radio Channel 40
• 27.410 MHz - end CB band / CADS mid band
• 27.415 MHz - Band E Channel 1 (not a legal CB channel)
• 27.425 MHz - Band E Channel 2 (not a legal CB channel)
• 27.435 MHz - Band E Channel 3 (not a legal CB channel)
• 27.445 MHz - Band E Channel 3A (not a legal CB channel)
• 27.455 MHz - Band E Channel 4 (not a legal CB channel)
• 27.465 MHz - Band E Channel 5 (not a legal CB channel)
• 27.475 MHz - Band E Channel 6 (not a legal CB channel)
• 27.485 MHz - Band E Channel 7 (not a legal CB channel)
• 27.495 MHz - Band E Channel 7A (not a legal CB channel)
• 27.500 MHz - end FIXED/MOBILE band (on-site paging, low power devices, Citizen Band Radio)
• 27.500 MHz - begin METEOROLOGICAL AIDS, FIXED, MOBILE band (on-site paging, fixed/mobile service, WPAS is a FIXED SERVICE)
• 27.505 MHz - Band E Channel 8 (not a legal CB channel)
• 27.515 MHz - Band E Channel 9 (not a legal CB channel)
• 27.525 MHz - Band E Channel 10 (not a legal CB channel)
• 27.535 MHz - Band E Channel 11 (not a legal CB channel)
• 27.545 MHz - Band E Channel 11A (not a legal CB channel)
• 27.555 MHz - Band E Channel 12 (not a legal CB channel)
• 27.565 MHz - Band E Channel 13 (not a legal CB channel)
• 27.575 MHz - Band E Channel 14 (not a legal CB channel)
• 27.585 MHz - Band E Channel 15 (not a legal CB channel)
• 27.595 MHz - Band E Channel 15A (not a legal CB channel)
• 27.59625 MHz - begin 27/81 UK FM CB band per Ofcom frequency allocation
• 27.600 MHz - begin WPAS allocation per ComReg frequency allocation
• 27.60125 MHz - LW01 / UK FM CB Channel 1
• 27.605 MHz - UW01
• 27.61125 MHz - LW02 / UK FM CB Channel 2
• 27.615 MHz - UW02
• 27.62125 MHz - LW03 / UK FM CB Channel 3
• 27.625 MHz - UW03
• 27.63125 MHz - LW04 / UK FM CB Channel 4
• 27.635 MHz - UW04
• 27.64125 MHz - LW05 / UK FM CB Channel 5
• 27.645 MHz - UW05
• 27.65125 MHz - LW06 / UK FM CB Channel 6
• 27.655 MHz - UW06
• 27.66125 MHz - LW07 / UK FM CB Channel 7
• 27.665 MHz - UW07
• 27.67125 MHz - LW08 / UK FM CB Channel 8
• 27.675 MHz - UW08
• 27.68125 MHz - LW09 / UK FM CB Channel 9
• 27.685 MHz - UW09
• 27.69125 MHz - LW10 / UK FM CB Channel 10
• 27.695 MHz - UW10
• 27.70125 MHz - LW11 / UK FM CB Channel 11
• 27.705 MHz - UW11
• 27.71125 MHz - LW12 / UK FM CB Channel 12
• 27.715 MHz - UW12
• 27.72125 MHz - LW13 / UK FM CB Channel 13
• 27.725 MHz - UW13
• 27.73125 MHz - LW14 / UK FM CB Channel 14
• 27.735 MHz - UW14
• 27.74125 MHz - LW15 / UK FM CB Channel 15
• 27.745 MHz - UW15
• 27.75125 MHz - LW16 / UK FM CB Channel 16
• 27.755 MHz - UW16
• 27.76125 MHz - LW17 / UK FM CB Channel 17
• 27.765 MHz - UW17
• 27.77125 MHz - LW18 / UK FM CB Channel 18
• 27.775 MHz - UW18
• 27.78125 MHz - LW19 / UK FM CB Channel 19
• 27.785 MHz - UW19
• 27.79125 MHz - LW20 / UK FM CB Channel 20
• 27.795 MHz - UW20
• 27.80125 MHz - LW21 / UK FM CB Channel 21
• 27.805 MHz - UW21
• 27.81125 MHz - LW22 / UK FM CB Channel 22
• 27.815 MHz - UW22
• 27.82125 MHz - LW23 / UK FM CB Channel 23
• 27.825 MHz - UW23
• 27.83125 MHz - LW24 / UK FM CB Channel 24
• 27.835 MHz - UW24
• 27.84125 MHz - LW25 / UK FM CB Channel 25
• 27.845 MHz - UW25
• 27.85125 MHz - LW26 / UK FM CB Channel 26
• 27.855 MHz - UW26
• 27.86125 MHz - LW27 / UK FM CB Channel 27
• 27.865 MHz - UW27
• 27.87125 MHz - LW28 / UK FM CB Channel 28
• 27.875 MHz - UW28
• 27.88125 MHz - LW29 / UK FM CB Channel 29
• 27.885 MHz - UW29
• 27.89125 MHz - LW30 / UK FM CB Channel 30
• 27.895 MHz - UW30
• 27.90125 MHz - LW31 / UK FM CB Channel 31
• 27.905 MHz - UW31
• 27.91125 MHz - LW32 / UK FM CB Channel 32
• 27.915 MHz - UW32
• 27.92125 MHz - LW33 / UK FM CB Channel 33
• 27.925 MHz - UW33
• 27.93125 MHz - LW34 / UK FM CB Channel 34
• 27.935 MHz - UW34
• 27.94125 MHz - LW35 / UK FM CB Channel 35
• 27.945 MHz - UW35
• 27.95125 MHz - LW36 / UK FM CB Channel 36
• 27.955 MHz - UW36
• 27.96125 MHz - LW37 / UK FM CB Channel 37
• 27.965 MHz - UW37
• 27.97125 MHz - LW38 / UK FM CB Channel 38
• 27.975 MHz - UW38
• 27.98125 MHz - LW39 / UK FM CB Channel 39
• 27.985 MHz - UW39
• 27.990 MHz - end WPAS allocation per ComReg rules
• 27.99125 MHz - LW40 / UK FM CB Channel 40
• 27.995 MHz - UW40
• 27.99625 MHz - end 27/81 UK FM CB band
• 28.000 MHz - end WPAS / CADS from 27.59625 MHz / 27.6 MHz (27.5 MHz to 28.0 MHz FIXED SERVICE band)
• 28.000 MHz - end METEOROLOGICAL AIDS, FIXED, MOBILE band (on-site paging, fixed/mobile service)
• 28.000 MHz - begin 10 meter amateur radio 10m ham radio band

Further Reading - Regulations, Technical Requirements, Frequency Allocations

https://www.ofcom.org.uk/__data/assets/pdf_file/0026/51587/consultation.pdf

https://www.comreg.ie/media/2016/04/WPAS-Licence-Application-Guideleines0517R1.pdf

HF band for WPAS usage HF band 27.60 MHz - 27.99 MHz two banks of 40 channels each - channel bandwidth 10 kHz

• EN 300 1134 (Radio equipment intended for the transmission of data (and/or speech) using constant or non-constant envelope modulation and having an antenna connector)
• EN 300 1354 (Angle modulated CB radio equipment CEPT PR 27 Radio Equipment) 26.96 MHz - 27.41 MHz
• EN 300 4334 (Double Side Band (DSB) and/or Single Side Band SSB amplitude modulated AM CB radio equipment)

26.965 MHz to 27.405 MHz amplitude modulated, angle modulated voice sound broadcasting phase modulation or frequency modulation A3E and G3E or F3E 26.96 MHz to 27.41 MHz band with the exception of 26.995 MHz 27.045 MHz 27.095 MHz, 27.145 MHz, 27.195 MHz. 27500 kHz 27.5 MHz to 27.6 MHz 27.6 MHz to 27.995 MHz 27.60125 MHz to 27.99125 MHz 27.59625 MHz 27.99625 MHz 27.605 MHz 27.995 MHz

• The following maximum effective Radiated Power (ERP) limits will apply to WPAS systems.
• Base Station equipment using Amplitude Modulation (AM): 1 watt (0dBW)
• Base Station equipment using Frequency Modulation (FM): 4 watts (6dBW)
• Antennas must be non directional and antenna gain must not exceed 3dBd
• Antenna polarization must be vertical
• Antenna height must not exceed 10 metres above local ground level

• 26175 kHz - 27500 kHz 26.175 MHz - 27.5 MHz CEPT/ERC/DEC/(96);19,I.S.ETS300.224 CEPT/ERC/DEC/(96);02,I.S.ETS300.135 Paging (private, on-site) Low Power devices Citizen Band Radio (26.96 - 27.41 MHz.) Model Control 26.995 MHz 27.045 MHz 27.095 MHz 27.145 MHz 27.195 MHz FIXED MOBILE except aeronautical mobile S5.150

S5.150 - The following bands: 13553 - 13567 kHz (center frequency 13560 kHz), 26957 - 27283 kHz 26.957 MHz - 27.283 MHz (center frequency 27120 kHz 27.12 MHz), 40.66 - 40.70 MHz (center frequency 40.68 MHz), 902 - 928 MHz in Region 2 (center frequency 915 MHz), 2400 - 2500 MHz (center frequency 2450 MHz), 5725 - 5 875 MHz (center frequency 5800 MHz), and 24 - 24.25 GHz (center frequency 24.125 GHz) are also designated for industrial, scientific and medical (ISM) applications. Radiocommunication services operating within these bands must accept harmful interference which may be caused by these applications. ISM equipment operating in these bands is subject to the provisions of No. 1815/S15.13.

• 27500 kHz - 28000 kHz 27.5 MHz - 28.0 MHz CEPT/ERC/DEC/(96)19,I.S./ETS.300.224 METEOROLOGICAL AIDS FIXED MOBILE
• 26350 kHz - 27500 26.35 MHz - 27.5 MHz kHz - FIXED MOBILE - except aeronautical mobile
• 27500 kHz - 28000 27.5 MHz - 28.0 MHz - FIXED MOBILE - except aeronautical mobile

Responsibility for granting permissions to use frequencies in this Allocation rests with Defence. All frequency permissions are reserved exclusively for Defence use except where assignments for Civil use are agreed with Ofcom.

Responsibility for assigning frequencies to this Allocation rests with Ofcom. Frequencies in this Allocation are exclusively assigned for civilian use except where permissions for military use are agreed with the Ministry of Defence. Ofcom coordinates assignments with the Ministry of Defence. Further information can be found in the document “Frequency sharing arrangements between civil and military services”.

The MoD requires at times to activate stations of the land mobile service, employing low power for voice communications, in the range 1.5 - 30.0 MHz. Temporary assignments will be negotiated directly with Ofcom and the Departments concerned or likely to be affected. In certain bands however this general but qualified agreement to MILITARY out of band usage cannot be permitted. These bands are annotated by the footnote UK9 in the UKFAT.