HF pagers
From HFUnderground
List of known pager paging data link data systems using digital modes, telemetry, remote control, wireless control, radio control and other digital in the 26-28 MHz CB or 11-meter frequency range.
See also the Remote Control FCC Part 95 Class C Page - Remote Control Radio Service (RCRS), FCC Rules Part 95, Personal Radio Services, Subpart C—Radio Control Radio Service 95.701-95.899, previously 95.201-95.225
Plus the page for POCSAG
Frequency List
Note: This list is a dynamic list and will never be complete. Many of these systems - especially the paging systems and telemetry or data link systems, act as de facto 11 meter beacons and de facto high frequency beacons. Included FSK data signals and pager signals - 25 to 30 MHz, included 29.7 MHz to 30 MHz portion above the 10 meter ham radio allocation 28 to 29.7 MHz but below the official beginning of VHF at 30.000 MHz. Many frequency allocation tables begin the allocation at 30.005 MHz, 30.01 MHz, etc.
| Frequency MHz | Frequency kHz | Remarks |
|---|---|---|
| 26.100 MHz | 26100 kHz | Hospital pagers - Europe - FM voice and POCSAG |
| 26.150 MHz | 26150 kHz | Hospital pagers - Europe - FM voice and POCSAG |
| 26.190 MHz | 26190 kHz | On site paging systems, 5w power limit - Italy |
| 26.200 MHz | 26200 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.210 MHz | 26210 kHz | On site paging systems, 5w power limit - Italy |
| 26.220 MHz | 26220 kHz | On site paging / hospital pagers - POCSAG - Europe |
| 26.225 MHz | 26225 kHz | UK Paging on-site pager (offset frequency) |
| 26.237 MHz | 26237 kHz | UK Paging on-site, non-hospital use (offset frequency, 26.2375 MHz, 26.238 MHz) |
| 26.250 MHz | 26250 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.300 MHz | 26300 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.340 MHz | 26340 kHz | On site paging systems, 5w power limit - Italy |
| 26.350 MHz | 26350 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.375 MHz | 26375 kHz | Asian paging frequency, unknown source, possibly India (FM voice) |
| 26.400 MHz | 26400 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.410 MHz | 26410 kHz | UK Paging on-site, non-hospital use |
| 26.435 MHz | 26435 kHz | UK Paging on-site, non-hospital use (offset frequency, 26.436 MHz) |
| 26.437 MHz | 26437 kHz | UK Paging on-site, non-hospital use (offset frequency, 26.4375 MHz, 26.438 MHz) |
| 26.450 MHz | 26450 kHz | Hospital pagers - POCSAG and Voice (Holland) |
| 26.460 MHz | 26460 kHz | UK Paging on-site, non-hospital use (offset frequency) |
| 26.462 MHz | 26462 kHz | UK Paging on-site, non-hospital use (offset frequency, 26.4625 MHz, 26.463 MHz) |
| 26.475 MHz | 26475 kHz | Asian paging frequency, unknown source, possibly India (FM voice) |
| 26.490 MHz | 26490 kHz | On site paging systems, 5w power limit - Italy |
| 26.500 MHz | 26500 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.510 MHz | 26510 kHz | On site paging systems, 5w power limit - Italy |
| 26.540 MHz | 26540 kHz | Data link - MFSK Data Bursts |
| 26.545 MHz | 26545 kHz | UK Paging on-site, non-hospital use |
| 26.550 MHz | 26550 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.555 MHz | 26555 kHz | On site paging services - 5 watts - Switzerland |
| 26.565 MHz | 26565 kHz | On site paging services - 5 watts - Switzerland |
| 26.575 MHz | 26575 kHz | Asian paging frequency, unknown source, possibly India (FM voice) |
| 26.580 MHz | 26580 kHz | UK Paging on-site, non-hospital use |
| 26.585 MHz | 26585 kHz | On site paging services - 5 watts - Switzerland |
| 26.590 MHz | 26590 kHz | UK Paging on-site, non-hospital use (offset frequency, 26.5875 MHz, 26.588 MHz) |
| 26.590 MHz | 26590 kHz | Data link - MFSK Data Bursts |
| 26.595 MHz | 26595 kHz | On site paging services - 5 watts - Switzerland |
| 26.600 MHz | 26600 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.605 MHz | 26605 kHz | POCSAG Pager - UK and Western Europe |
| 26.615 MHz | 26615 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.625 MHz | 26625 kHz | Asian paging frequency, unknown source, possibly India (FM voice) |
| 26.625 MHz | 26625 kHz | On site paging services - 5 watts - Switzerland |
| 26.630 MHz | 26630 kHz | POCSAG paging signals, unknown source |
| 26.635 MHz | 26635 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.640 MHz | 26640 kHz | Data link - MFSK Data Bursts |
| 26.645 MHz | 26645 kHz | On site paging services - 5 watts - Switzerland |
| 26.650 MHz | 26650 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.670 MHz | 26670 kHz | UK Paging on-site, non-hospital use |
| 26.675 MHz | 26675 kHz | On site paging services - 5 watts - Switzerland |
| 26.685 MHz | 26685 kHz | On site paging services - 5 watts - Switzerland |
| 26.695 MHz | 26695 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.700 MHz | 26700 kHz | Paging systems and data link systems, Europe |
| 26.703 MHz | 26703 kHz | Offset frequency for 26.7025 MHz, heard in Western Europe and UK |
| 26.705 MHz | 26705 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.707 MHz | 26707 kHz | UK Paging, often slightly offset (26.7065 MHz, etc.) |
| 26.710 MHz | 26710 kHz | UK Paging, often slightly offset (26.709 MHz, etc.) |
| 26.713 MHz | 26713 kHz | UK Paging, offset 26.7125 MHz |
| 26.715 MHz | 26715 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.720 MHz | 26720 kHz | Paging systems, Europe (and possibly other locations) |
| 26.725 MHz | 26725 kHz | On site paging, UK, Switzerland |
| 26.735 MHz | 26735 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.745 MHz | 26745 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.750 MHz | 26750 kHz | Paging systems and data link systems, Europe |
| 26.755 MHz | 26755 kHz | On site paging, UK, Switzerland |
| 26.760 MHz | 26760 kHz | POCSAG paging signals - unknown source, likely Europe or North Africa |
| 26.765 MHz | 26765 kHz | On site paging services - 5 watts - Switzerland |
| 26.775 MHz | 26775 kHz | On site paging services - 5 watts - Switzerland |
| 26.785 MHz | 26785 kHz | UK Paging on-site pager |
| 26.787 MHz | 26787 kHz | UK Paging on-site pager |
| 26.788 MHz | 26788 kHz | POCSAG Pager - Offset frequency - UK and Europe |
| 26.795 MHz | 26795 kHz | On site paging services - 5 watts - Switzerland |
| 26.800 MHz | 26800 kHz | Hospital pagers (Holland) FM mode |
| 26.805 MHz | 26805 kHz | On site paging services - 5 watts - Switzerland |
| 26.815 MHz | 26815 kHz | On site paging, UK, Switzerland, other locations |
| 26.825 MHz | 26825 kHz | On site paging services - 5 watts - Switzerland |
| 26.835 MHz | 26835 kHz | UK Paging on-site Radio Paging Hire frequency - maximum ERP 2 watts 26.8350 MHz |
| 26.850 MHz | 26850 kHz | POCSAG and FM Voice Paging Pager - Europe |
| 26.855 MHz | 26855 kHz | Hospital pagers - Europe European POCSAG paging pagers FSK |
| 26.865 MHz | 26865 kHz | UK Paging on-site pager |
| 26.885 MHz | 26885 kHz | POCSAG pager - Europe |
| 26.885 MHz | 26885 kHz | CCIR multi-tone paging/pager system - Europe |
| 26.890 MHz | 26890 kHz | POCSAG pager logged in Europe during band openings, unknown origin |
| 26.895 MHz | 26895 kHz | On site paging services - 5 watts - Switzerland |
| 26.900 MHz | 26900 kHz | POCSAG pager - unknown origin (heard daily in UK, very strong signals) |
| 26.905 MHz | 26905 kHz | On site paging services - 5 watts |
| 26.915 MHz | 26915 kHz | MFSK and FSK data links, Europe / European Russia |
| 26.920 MHz | 26920 kHz | UK Paging on-site Radio Paging Hire frequency - maximum ERP 2 watts 26.9200 MHz |
| 26.925 MHz | 26925 kHz | Data link system, heard in UK during band opening to Eastern Europe, CIS and/or Russia |
| 26.935 MHz | 26935 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.940 MHz | 26940 kHz | POCSAG pager (other modes heard) - heard daily in Russia - Russian 26 MHz paging system |
| 26.945 MHz | 26945 kHz | Paging, data links, alarms - 2 watt power limit - Russia |
| 26.950 MHz | 26950 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.950 MHz | 26950 kHz | Fixed allocation - often used for point-to-point links outside USA |
| 26.950 MHz | 26950 kHz | Paging signals - Russia / Eastern Europe? |
| 26.955 MHz | 26955 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.955 MHz | 26955 kHz | Fixed allocation - often used for point-to-point links outside USA (26950 kHz 26960 kHz allocation "international fixed") |
| 26.960 MHz | 26960 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 26.960 MHz | 26960 kHz | Paging, data links, alarms - 2 watt power limit - Russia |
| 26.978 MHz | 26978 kHz | New Zealand channel RP1A on-site paging POCSAG |
| 26.990 MHz | 26990 kHz | Data links, Eastern Europe, Russia - narrowband MFSK and FSK data |
| 26.995 MHz | 26995 kHz | Model control "Brown", data link, paging systems, pagers - worldwide |
| 26.995 MHz | 26995 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 4 watt power limit, 8 kHz bandwidth |
| 27.000 MHz | 27000 kHz | Russian data link or telemetry system, 10-12 kHz, MFSK |
| 27.000 MHz | 27000 kHz | POCSAG Pager heard in UK and Europe - unknown source |
| 27.003 MHz | 27003 kHz | New Zealand channel RP2A on-site paging POCSAG |
| 27.007 MHz | 27007 kHz | POCSAG paging signal, heard in Finland (unknown source), possibly offset 27.005 MHz or 27.0075 MHz |
| 27.015 MHz | 27015 kHz | On site paging systems - Ireland |
| 27.020 MHz | 27020 kHz | New Zealand R/C Channel 102 (100mw maximum power) |
| 27.020 MHz | 27020 kHz | POGSAG Pager FM - Russian origin - Russia paging frequency |
| 27.028 MHz | 27028 kHz | New Zealand channel RP3A on-site paging POCSAG |
| 27.045 MHz | 27045 kHz | Model control "Red", data link, paging systems, pagers - worldwide |
| 27.045 MHz | 27045 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 4 watt power limit, 8 kHz bandwidth |
| 27.048 MHz | 27048 kHz | Japanese On-Site Paging and R/C (interleaved with CB and 1W DSB Fishery Radio) |
| 27.050 MHz | 27050 kHz | POCSAG Pager heard in UK and Europe - unknown source |
| 27.053 MHz | 27053 kHz | New Zealand channel RP4A on-site paging POCSAG |
| 27.070 MHz | 27070 kHz | POGSAG Pager FM - Russian origin - 27 MHz Russian paging system frequency |
| 27.075 MHz | 27075 kHz | Hospital pagers (Holland) FM mode |
| 27.078 MHz | 27078 kHz | New Zealand channel RP5A on-site paging POCSAG |
| 27.080 MHz | 27080 kHz | On site paging systems on premises pagers - Russia |
| 27.090 MHz | 27090 kHz | Russian pagers, heard on Russian and Eastern European SDRs |
| 27.090 MHz | 27090 kHz | European standardized Eurobalise train telemetry system 27,090-27,100 MHz (27,095 MHz center frequency, system 27.09 MHz-27.1 MHz) |
| 27.095 MHz | 27095 kHz | Pagers, European or North African origin |
| 27.095 MHz | 27095 kHz | MFSK data links, 4 kHz bandwidth |
| 27.095 MHz | 27095 kHz | Model control "Orange", data link, paging systems, pagers - worldwide |
| 27.095 MHz | 27095 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 4 watt power limit, 8 kHz bandwidth |
| 27.095 MHz | 27095 kHz | European standardized Short-Range Device (SRD) 100mw (10 kHz bandwidth or less) (27.090 MHz - 27.100 MHz) "A3" |
| 27.095 MHz | 27095 kHz | European standardized Eurobalise train telemetry system 27,095 MHz +/- 500 kHz 26.695 MHz - 27.595 MHz |
| 27.100 MHz | 27100 kHz | European standardized Eurobalise train telemetry system 27,090-27,100 MHz (27,095 MHz center frequency, system 27.09 MHz-27.1 MHz) |
| 27.100 MHz | 27100 kHz | POCSAG Pager heard in UK and Europe - unknown source |
| 27.103 MHz | 27103 kHz | New Zealand channel RP6A on-site paging POCSAG |
| 27.120 MHz | 27120 kHz | POCSAG Pager Signals heard in UK - unknown origin |
| 27.136 MHz | 27136 kHz | Japanese On-Site Paging and R/C |
| 27.137 MHz | 27137 kHz | New Zealand channel RP7A on-site paging POCSAG (offset frequency, 27.1375 MHz, 27.138 MHz) |
| 27.140 MHz | 27140 kHz | Russian pagers, heard on Russian and Eastern European SDRs |
| 27.145 MHz | 27145 kHz | Model control "Yellow", data link, paging systems, pagers - worldwide |
| 27.145 MHz | 27145 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 4 watt power limit, 8 kHz bandwidth |
| 27.152 MHz | 27152 kHz | Japanese On-Site Paging and R/C |
| 27.162 MHz | 27162 kHz | New Zealand channel RP8A on-site paging POCSAG (offset frequency, 27.1625 MHz, 27.163 MHz) |
| 27.187 MHz | 27187 kHz | New Zealand channel RP9A on-site paging POCSAG (offset frequency, 27.1875 MHz, 27.188 MHz) |
| 27.190 MHz | 27190 kHz | Paging, possibly on-site, heard on French and German SDRs |
| 27.195 MHz | 27195 kHz | Model control "Green", data link, paging systems, pagers - worldwide |
| 27.195 MHz | 27195 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 4 watt power limit, 8 kHz bandwidth |
| 27.200 MHz | 27200 kHz | POCSAG Pager heard in UK and Europe - unknown source |
| 27.210 MHz | 27210 kHz | Republic of Korea / South Korea on-site paging frequency allocation |
| 27.212 MHz | 27212 kHz | New Zealand channel RP10A on-site paging POCSAG (offset frequency, 27.2125 MHz, 27.213 MHz) |
| 27.220 MHz | 27220 kHz | Paging signals - POCSAG - Europe |
| 27.233 MHz | 27233 kHz | POCSAG Paging signals, narrowband (center frequency 27.233, tune 27.230 MHz USB) |
| 27.237 MHz | 27237 kHz | New Zealand channel RP11A on-site paging POCSAG (offset frequency, 27.2375 MHz, 27.238 MHz) |
| 27.237 MHz | 27237 kHz | Republic of Korea / South Korea on-site paging frequency |
| 27.246 MHz | 27246 kHz | Republic of Korea / South Korea on-site paging frequency |
| 27.250 MHz | 27250 kHz | Pager - POCSAG - Central / Eastern Europe |
| 27.250 MHz | 27250 kHz | POCSAG Pager heard in UK and Europe - unknown source |
| 27.255 MHz | 27255 kHz | Model control "Blue", data link, paging systems, pagers - worldwide |
| 27.255 MHz | 27255 kHz | U.S. RCRS License Free Data, Telemetry, RC, Telecommand Services. 25 watt power limit, 8 kHz bandwidth |
| 27.255 MHz | 27255 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.262 MHz | 27262 kHz | New Zealand channel RP12A on-site paging POCSAG (offset frequency, 27.2625 MHz, 27.263 MHz) |
| 27.270 MHz | 27270 kHz | Local pager, heard in mainland Europe, similar to systems operating on 27.300 MHz and 27.350 MHz |
| 27.272 MHz | 27272 kHz | Republic of Korea / South Korea on-site paging frequency |
| 27.282 MHz | 27282 kHz | Republic of Korea / South Korea on-site paging frequency |
| 27.300 MHz | 27300 kHz | POCSAG Paging |
| 27.350 MHz | 27350 kHz | POCSAG Paging (heard sporadically in UK - unknown origin) |
| 27.360 MHz | 27360 kHz | POCSAG Paging |
| 27.400 MHz | 27400 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.400 MHz | 27400 kHz | Republic of Korea / South Korea on-site paging frequency allocation |
| 27.410 MHz | 27410 kHz | Republic of Korea / South Korea on-site paging frequency allocation |
| 27.412 MHz | 27412 kHz | Republic of Korea / South Korea on-site paging frequency allocation (offset frequency 27.4125 MHz) |
| 27.420 MHz | 27420 kHz | Republic of Korea / South Korea on-site paging frequency allocation |
| 27.422 MHz | 27422 kHz | Republic of Korea / South Korea on-site paging frequency allocation (offset frequency 27.4225 MHz) |
| 27.425 MHz | 27425 kHz | Paging Signals - POCSAG pager transmissions - unknown source 27425 kHz center frequency |
| 27.425 MHz | 27425 kHz | On site paging systems, 5 watt power, Spain (25 kHz bandwidth) |
| 27.430 MHz | 27430 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.440 MHz | 27440 kHz | Data stream, POCSAG paging and voice paging system - unknown source - offset 27.441 MHz 27441 kHz |
| 27.442 MHz | 27442 kHz | Republic of Korea / South Korea on-site paging frequency allocation (offset frequency 27.4425 MHz) |
| 27.450 MHz | 27450 kHz | Alarm system datalinks - UK - 500mW power limit (considered a SRD or RC device) |
| 27.450 MHz | 27450 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 27.455 MHz | 27455 kHz | POCSAG Pager - Europe |
| 27.470 MHz | 27470 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.475 MHz | 27475 kHz | On site paging systems, 5 watt power, Spain (25 kHz bandwidth) |
| 27.490 MHz | 27490 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.500 MHz | 27500 kHz | Paging systems, hospital and on site, UK and Europe (numerous countries) |
| 27.505 MHz | 27505 kHz | Paging - POCSAG and other modes, various bandwidths, often active at the same time as 27845 kHz - 27850 kHz |
| 27.505 MHz | 27505 kHz | Fixed service, LMR, and paging systems - Spain, 20 watt power limit, 10 kHz bandwidth |
| 27.510 MHz | 27510 kHz | Paging, German allocation pager 27 MHz - Germany / Central Europe |
| 27.510 MHz | 27510 kHz | Paging, voice and data - possibly offset 27.5125 MHz or 27.513 MHz |
| 27.515 MHz | 27515 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.525 MHz | 27525 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.535 MHz | 27535 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.540 MHz | 27540 kHz | Data link - MFSK Data Bursts |
| 27.545 MHz | 27545 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.550 MHz | 27550 kHz | Paging systems, hospital and on site - Europe (various countries) |
| 27.555 MHz | 27555 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.565 MHz | 27565 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.575 MHz | 27575 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.585 MHz | 27585 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.590 MHz | 27590 kHz | Data link - MFSK Data Bursts |
| 27.595 MHz | 27595 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.600 MHz | 27600 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.620 MHz | 27620 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.640 MHz | 27640 kHz | Data link - MFSK Data Bursts |
| 27.650 MHz | 27650 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.700 MHz | 27700 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.740 MHz | 27740 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.750 MHz | 27750 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.760 MHz | 27760 kHz | MFSK Data Links, Paging |
| 27.775 MHz | 27775 kHz | On site paging - Turkey |
| 27.780 MHz | 27780 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.800 MHz | 27800 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.820 MHz | 27820 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.825 MHz | 27825 kHz | On site paging - Turkey |
| 27.840 MHz | 27840 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.845 MHz | 27845 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.845 MHz | 27845 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.850 MHz | 27850 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.855 MHz | 27855 kHz | Paging and other fixed services - Spain - 20 watt power limit |
| 27.860 MHz | 27860 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.875 MHz | 27875 kHz | On site paging - Turkey |
| 27.880 MHz | 27880 kHz | On-site paging systems 5 watt power limit - Finland |
| 27.885 MHz | 27885 kHz | Voice and data paging system, Greece - Greek voice (FM mode) possible offset 27.8875 MHz |
| 27.885 MHz | 27885 kHz | POCSAG paging system with voice paging (FM mode) 27.885 MHz FM |
| 27.900 MHz | 27900 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.915 MHz | 27915 kHz | Data link - Eastern Europe / CIS / Russia |
| 27.925 MHz | 27925 kHz | On site paging - Turkey |
| 27.940 MHz | 27940 kHz | On-site paging systems 5 watt power limit - Finland, European data link and paging (POCSAG) |
| 27.950 MHz | 27950 kHz | Paging systems, hospital and on site, Europe (numerous countries) |
| 27.975 MHz | 27975 kHz | On site paging - Turkey |
| 29.700 MHz | 29700 kHz | Telemetry, datalink |
| 29.750 MHz | 29750 kHz | POCSAG Paging Pager - Heard in UK, likely European origin 29.75 MHz POCSAG |
| 29.750 MHz | 29750 kHz | Narrowband POCSAG paging signals - possible North Africa Southern Europe |
| 29.800 MHz | 29800 kHz | POCSAG Paging Pager - Heard in UK, likely European origin 29.8 MHz POCSAG |
| 29.850 MHz | 29850 kHz | POCSAG Paging Pager - Heard in UK, likely European origin 29.85 MHz POCSAG |
| 29.875 MHz | 29875 kHz | Telemetry and data link systems, Latin America, Europe |
| 29.900 MHz | 29900 kHz | POCSAG Paging Pager - Heard in UK, likely European origin 29.9 MHz POCSAG |
| 29.950 MHz | 29950 kHz | POCSAG Paging Pager - Heard in UK, likely European origin 29.95 MHz POCSAG |
History and Background Information
The original five RC frequencies can trace their roots back to the origins of the CB radio service - when the band was first allocated as 26.96 MHz to 27.23 MHz (23 channel CB) the FCC band plan included five model control/data channels 35 kHz from the band edges with 50 kHz spacing between each RC channel. 26.995 MHz is 35 kHz above the bottom of the band (26.960 MHz) and 50 kHz away from the next R/C channel (27.045 MHz). 27.195 MHz is 35 kHz below the original edge of the band (27.230 MHz) as well. The 50 kHz spacing was in line with the capability of remote control systems in the 1950s. 27.255 MHz was originally used for paging and kept that use even after being designated as CB channel 23. Since 27.255 MHz is 60 kHz away from the 27.195 MHz frequency, higher transmit power was (and still is) permitted.
In the United States, Part 95 of the FCC rules allow use of the six 26 MHz/27 MHz RC frequencies for high power control, supervision, data link, telemetry networks and "attention getting" devices. Mean (average) power limit is 4 watts on 26.995 MHz, 27.045 MHz, 27.095 MHz, 27.145 MHz, 27.195 MHz and 25 watts on 27.255 MHz. The majority of high power systems use 27.255 MHz - however some do transmit 4 watts on 26.995 MHz. Many of these devices are in use in the United States and elsewhere. Common uses include farming, agribusiness telemetry and remote control, lightning detection systems (with remote sensors and/or remote alarms/sirens) and numerous other applications. Harris Radio (under the brand name PRIVATEPAGE) produced a local area paging system that operates on 27.255 MHz, RadioShack sold two similar versions, one advertised as having a 7 watt transmitter, the other advertised as having a 4 watt transmitter.
26.995, 27.045, 27.095, 27.145 and 27.195 MHz are all RC exclusive frequencies and voice transmissions are not allowed. However, these frequencies are often used as a "secret channel", "A channel" or "alpha channel" by CBers and freeband operators. Modified CB and 10 meter radios with a +10 kHz switch (or +10kc switch) allow access to the A channels. 27.255 MHz is CB channel 23 and data transmissions must co-exist with voice traffic on the same frequency. This likely explains the 25 watt power limit on 27.255 compared to the 4 watt power limit on the original 5 R/C channels.
There is also extensive Part 15 usage of these frequencies for low-power R/C model control. Higher power levels are used by professional grade systems. Most higher-end remote control/radio control devices use the 72 MHz and 75 MHz frequencies (where 0.75 watts is the maximum power output) or the unlicensed 2.4 GHz band. However, there remains considerable use of 26-27 MHz for data link, remote sensor monitoring and other similar purposes due to the high power available for unlicensed users and excellent propagation characteristics for point-to-point data networks. Some vendors are now offering systems that operate on the 5 VHF MURS frequencies for telemetry, telecommand and data link purposes (although these are covered under the Part 95 rules as well, they are not part of the RCRS under FCC Part 95).
