Some links may be affiliate links. Citizen band radio is a short distance radio communication system that operates within a selected range of forty channels. In the early 2000s, National Communications Magazine added CB radio coverage to its coverage of scanner radios and still remains the only magazine in North America covering CB radio. [12]:120 During this early period, many CB radios had "inter-station" channels colored on their dials, while the other channels were clear or normally colored. While they may be known by other names, such as the General Radio Service in Canada,[1] they often use similar frequencies (2628MHz) and have similar uses, and similar technical standards. It does not require a license like other transmitters. Almost all were AM-only, although there were a few single sideband sets. . The rules regarding non-approved radios and power levels above 4Watts on AM/FM and 12Watts on SSB still apply, despite deregulation. Even though the 27 MHz Part 15 band extends from 26.980 MHz to 27.280 MHz, the second harmonics of these bands are 27.108 MHz MHz - 27.132 MHz or 27108 kHz to 27132 kHz. [citation needed]. Citizen Band Radio-What is it? Channel9 is reserved for emergencies, and channel11 for calling. Like many other land mobile radio services, multiple radios in a local area share a single frequency channel, but only one can transmit at a time. References This page was last edited on 25 January 2023, at 02:26 (UTC). In the United States, the FCC bans the importation and marketing of radios it deems easily modifiable for CB;[46] it is illegal to transmit on CB frequencies with a ham radio except in emergencies where no other method of communication is available. The 11-Meter band 2012-06-07 07:14 Admin Registered: 13 years ago Posts: 1,059 Dear operators. Free band 11 Meter Frequencies and Bands - iamdefiant.co.uk Some radios refer to the "mid band" (standard CB band) as "bandD" which shifts the letters up one (making 26.51526.955MHz "bandC" and 27.41527.855MHz "bandE". The Citizens Band, a particular square of radio frequencies (27 MHz or 11 meters) separate from TV and different signs, was made during the 1940s to serve the overall population. VHF radios are recommended by state agencies, such as Marine Safety Victoria and Marine Rescue NSW. Many truckers use two co-phased antennas, mounted on their outside mirrors. Feel free to login and start using our website to log your contacts on 27MHz. The old MPT1320 27/81 band will continue to be available for the foreseeable future. On 27June 2014, changes were made by Ofcom to allow the use of AM & SSB modes on CB in the UK legally for the first time. This is roughly 9feet (2.7m) tall; it is mounted low on the vehicle body, and often has a spring-and-ball mount to enhance its flexibility when scraping or striking overhead objects. Channel9 was officially reserved for emergency use by the FCC in 1969. LF11 News. Although the use of CB radios in the UK is limited they are still in use, especially with the farming community, truckers, off-roaders and mini-cab services. SSB radios also have the standard AM mode for communicating with standard CB radio models. If the first letter is not specified, it is considered that it is (C). Some manufacturers tried to sell more radios by claiming that with three different modes possible for each channel, it was the equivalent to 120channels. CB RADIO homemade Dipole antenna in a loft. - YouTube Freeband 11 Meter Frequencies - Guide to 11m Frequencies Guide to 11 meter DX calling frequencies, Freeband 11 Meter and CB Calling Frequencies Channels, Freeband 11 Meter and CB Digital Modes ROS PSK31 CW SSTV Channels, 11 meter Beacon Frequencies 11m CB Beacon Channels 11m Beacon Bands, Federal and Non-Federal Allocations 25 MHz to 30 MHz, Church radio broadcasts in Ireland and elsewhere in Europe, data links, buoys, fishnet tracking systems, pagers and other non-voice purposes, The original 11 meter amateur radio allocation was 26.96 MHz to 27.23 MHz and it was from this that the original Class D CB service was born, shortwave broadcast band SWBC or HFBC band, Remote Broadcast Pickup (Studio Transmitter Link or STL), UK FM CB radio channel 1 is 27.60125 MHz FM, telecommand and long range wireless control, legal CB band - "mid band", "FCC band" or "CEPT" band, https://www.hfunderground.com/wiki/index.php/11_meter, Time and Frequency Standard Stations - WWV on 25.000 MHz 25MHz 25000 kHz operates here, Government and Military Fixed/Mobile, including the, Citizen's Band - CB radio - NZ 26 MHz 40 channel CB radio service - CBL channels 26.33 MHz - 26.77 MHz, Citizen's Band - CB radio - Russia - "PO" Channel Raster or "zeros" - 120 channels, Citizen's Band - CB radio - Russia - "EU" Channel Raster or "fives"- 120 channels, Citizen's Band - CB radio - Germany, Czech Republic and other European countries (80 channels 26.565 MHz - 27.405 MHz), 1w DSB 1 watt double side band fishery radio - Japan Japanese DSB fisheries radio 27 MHz service marine fixed mobile, Citizen's Band - CB radio - Brazil and other Latin American countries (80 channels 26.965 MHz - 27.855 MHz), Citizen's Band - CB radio - United Kingdom UK CB 27/81 UK FM CB 27.60125 MHz - 27.99125 MHz 40 channels, Government and military fixed/mobile, including SINCGARS starting at 30.000 MHz, 27.555 MHz USB - International 11m SSB calling frequency, 26.285 MHz USB - International 11m SSB calling frequency - secondary to 27.555 MHz, 27.385 MHz LSB - American 11m CB SSB calling channel 38LSB, 27.425 MHz LSB - American 11m SSB calling frequency - 27.410 to 27.655 in 5 kHz steps, most activity in the 27.420 MHz to 27.505 MHz range, 26.915 MHz AM - American 11m AM calling frequency - USA "915", 26.805 MHz FM - American 11m FM calling frequency - USA "805 FM" "26805 FM" or "26.805 FM", 27.805 MHz FM - American 11m FM calling frequency - alternate to 26.805 MHz FM, 27.605 MHz FM - Alternate to 27.600 MHz FM - note that, 27.575 MHz FM - American 11m FM calling frequency - USA "575 FM" "27575 FM" or "27.575 FM", 27.600 MHz FM - American 11m FM calling frequency - primary (unless QRM from SSB or UK FM CB stations is an issue, then use 27.575 MHz FM), 27.650 MHz FM - American 11m FM calling frequency - alternate, 27.355 MHz LSB - Australia and Oceania 11m SSB calling channel 35LSB, 26.720 MHz LSB - New Zealand 26MHz SSB CB calling channel 35LSB, 27.315 MHz FM - European FM mid band CB calling channel 31 FM -, 27.305 MHz FM - European FM mid-band CB calling channel 30 FM- secondary to 27.315 MHz FM, 27.125 MHz AM - European AM mid band CB calling channel 14 AM, 27.455 MHz USB - Spanish language SSB calling frequency, 26.555 MHz LSB - Spanish language SSB calling frequency, 26.225 MHz USB - Spanish language SSB calling frequency, 26.425 MHz USB - Polish SSB calling frequency, 26.435 MHz USB - Polish SSB calling frequency, 27.995 MHz USB - Top end freeband 11 meter calling frequency, 27.99125 MHz FM - UK FM CB channel 40 - UK calling/working channel, 27.98125 MHz FM - UK FM CB channel 39 - UK calling/working channel, 27.975 MHz USB - French language freeband working channel, 27.97125 MHz FM - UK FM CB channel 38 - UK calling/working channel, 27.965 MHz USB - French language freeband working channel - including North Africa and other areas, 27.96125 MHz FM - UK FM CB channel 37 - UK calling/working channel, 27.95125 MHz FM - UK FM CB channel 36 - UK calling/working channel, 27.94125 MHz FM - UK FM CB channel 35 - UK calling/working channel, 27.855 MHz FM - 11 meter freeband calling and working frequency - FM mode, 27.855 MHz USB - 11 meter freeband calling and working frequency - USB mode, 27.805 MHz FM - US FM 11 meter FM CB working channel, 27.800 MHz FM - US FM 11 meter FM CB working channel - see also: UK FM CB Channel 21 on 27.80125 MHz FM, 27.78125 MHz FM - UK FM CB channel 19 - UK calling/working channel, 27.781 MHz or 27.781 FM, 27.775 MHz FM - US FM 11 meter FM CB working channel, 27.765 MHz USB - German 11m SSB - "Deutsche Welle", 27.650 MHz FM - US FM 11 meter FM CB working channel - alternate to 27.575 MHz FM and 27.600 MHz FM, 27.625 MHz FM - US FM 11 meter FM CB working channel, 27.605 MHz FM - US FM 11 meter FM CB working channel - note that UK FM CB channel 1 is only 3.75 kHz away, 27.60125 MHz FM - UK FM CB channel 1 - UK calling channel, 27.580 MHz USB - Kilo Papa 11m SSB calling frequency, 27.515 MHz LSB - Jamaica and Caribbean calling frequency, 27.510 MHz LSB - Jamaica and Caribbean calling frequency, 27.500 MHz USB - Italy - Papa Charlie DX Club, 27.465 MHz AM - Italian 11m AM calling channel - canal 45 or channel 45, 27.455 MHz USB - Spanish language SSB calling - Latin America, 27.455 MHz LSB - American 11m SSB calling/working frequency - Canadian and US stations, 27.315 MHz FM - US FM CB Calling Working Channel FM CB 31 FM, 27.285 MHz USB - Finland SSB calling - Nordic SSB calling - mid band CB channel 28 USB, 27.285 MHz AM - American 11m high power AM calling - CB channel 28, 27.275 MHz USB - UK SSB calling England mid band SSB frequency mid band CB channel 27, 27.275 MHz FM - US FM CB Calling Working Channel FM CB 27 FM, 27.270 MHz FM - Russian FM calling channel (Polish frequency "zeros") channel 27, 27.265 MHz AM - American 11m high power AM calling - CB channel 26, 27.235 MHz USB - Swedish and Nordic SSB calling Sweden - mid band CB channel 24 USB, 27.195 MHz FM - US FM Calling unofficial - AM voice noted here as well, 27.190 MHz USB - European SSB calling frequency - in between channels 19 and 20, 27.135 MHz FM - Russian FM calling and road channel - mid band CB channel 15, 27.135 MHz AM - Russian AM calling and road channel - mid band CB channel 15, 27.135 MHz USB - German 11m SSB in-band calling/working frequency, 27.125 MHz AM - UK AM calling England mid band SSB frequency mid band CB channel 14, 27.085 MHz AM - American 11m high power AM calling - CB channel 11, 27.065 MHz AM - Spanish language AM calling - CB channel 9, 27.025 MHz AM - American 11m high power AM calling - CB channel 6 - The Super Bowl, 27.005 MHz AM - German AM CB calling - CB channel 4 AM, 26.965 MHz FM - German FM CB calling - CB channel 1 FM, 26.925 MHz FM - American 11m FM working frequency - low band 26 MHz FM, 26.875 MHz FM - American 11m FM working frequency - low band 26 MHz FM, 26.835 MHz AM - American 11m AM calling frequency, 26.825 MHz FM - American 11m FM working frequency - low band 26 MHz FM (alternate to 26.805 MHz FM), 26.815 MHz AM - American 11m AM calling frequency, 26.805 MHz FM - American 11m FM calling frequency - 26 MHz FM calling, 26.775 MHz AM - American 11m AM calling frequency, 26.715 MHz AM - Spanish language AM calling, 26.705 MHz AM - Spanish language AM calling, 26.585 MHz AM - Spanish language AM calling - Mexico and others - often very busy, 26.575 MHz FM - German FM CB calling - German 80 channel CB channel 42, 26.500 MHz USB - Caribbean calling/working SSB 11 meter frequency, 26.500 MHz LSB - Caribbean calling/working SSB 11 meter frequency, 26.450 MHz AM - New Zealand 26MHz AM CB trucking channel 11, 27.800 MHz USB - 11m SSTV frequency - Alfa Tango DX Group (secondary or alternate to 27.700 USB and 27.735 USB), 27.735 MHz USB - 11m SSTV international frequency - secondary to 27.700 USB, also digital SSTV, 27.700 MHz USB - 11m SSTV international frequency, 27.635 MHz FM - European digital modes ROS data modes channel, 27.635 MHz USB - European digital modes ROS data modes channel, 27.500 MHz USB - CW calling - other digital modes, 27.500 MHz - ROS data mode - alternate to 27.635 MHz, 27.235 MHz, 27.245 MHz, 27.255 MHz, 27.500 MHz CW - 11 meter digital modes - CW, other digital modes (also beacon frequency) - 27495 to 27505 beacons, 27.255 MHz USB - WSPR weak signal digital modes - also alternate ROS datamode, PSK31 and packet radio channel - CB channel 23, 27.245 MHz FM - European packet PSK31 ROS channel - CB channel 25, 27.245 MHz USB - European digital modes ROS data modes channel - CB channel 25, 27.235 MHz FM - European packet PSK31 channel - CB channel 24, 27.235 MHz USB - European digital modes ROS data modes channel - CB channel 24, 27.035 MHz FM - Packet radio CB radio - Europe - designated digital CB frequency in Germany - CEPT 40 channel mid band CB channel 7, 27.025 MHz FM - Packet radio CB radio - Europe - designated digital CB frequency in Germany - CEPT 40 channel mid band CB channel 6, 26.925 MHz FM - Packet radio CB radio - Europe - designated digital CB frequency in Germany - German 80 channel CB channel 77, 26.915 MHz FM - Packet radio CB radio - Europe - designated digital CB frequency in Germany - German 80 channel CB channel 76, 26.860 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.850 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.840 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.830 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.820 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.810 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.740 MHz LSB - European packet and PSK31 frequency - packet radio 1200 baud, 26.675 MHz FM - Packet radio CB radio - Europe designated digital CB frequency in Germany - German 80 channel CB channel 53, 26.685 MHz FM - Packet radio CB radio - Europe designated digital CB frequency in Germany - German 80 channel CB channel 52, 27.495 MHz - 27.505 MHz - several active CW beacons around 27.499 MHz, 27.4996 MHz, 27.500 MHz and 27.501 MHz, 27.120 MHz - 27.130 MHz - especially around 27.120 MHz and 27.125 MHz, 27.140 MHz - 27.150 MHz - several active CW beacons around 27.140 MHz - 27.143 MHz including 27141.6 27.141.6 27.1416 MHz 27140.8 27.1408, 27.190 MHz - 27.260 MHz - active beacons on 27.205 MHz, 27.235 MHz, 27.240 MHz, 27.245 MHz, 27.250 MHz and 27.255 MHz, 27120 kHz 27.120 kHz - ISM central frequency, 26.225 MHz USB - Latin American SSB activity, 26.285 MHz USB - 26 MHz international calling frequency (commonly used in Europe), 26.305 MHz AM - Latin American (and American) AM activity, 26.315 MHz AM - popular out-of-band trucker channel USA, 26.375 MHz AM - popular out-of-band trucker channel USA, 26.405 MHz AM - popular out-of-band trucker channel USA, 26.500 MHz LSB - Caribbean and Latin American calling/working frequency, 26.500 MHz USB - Caribbean and Latin American calling/working frequency, 26.555 MHz LSB - very active in Mexico and Central/South America (and Caribbean), 26.565 MHz FM - German FM CB DX calling channel (Channel 41), 26.575 MHz FM - German FM CB DX calling channel (Channel 42), 26.585 MHz AM - Mexican trucker channel, often very busy, 26.605 MHz AM - alternate to 26.585 MHz (see also, 26.575 MHz, 26.595 MHz), 26.675 MHz AM - popular out-of-band trucker channel USA, 26.685 MHz AM - popular out-of-band trucker channel USA, 26.695 MHz AM - alternate to 26.705 MHz and 26.715 MHz, 26.705 MHz AM - Puerto Rico, Florida and other Caribbean AM stations, often extremely powerful, 26.725 MHz AM - alternate to 26.705 MHz and 26.715 MHz, 26.735 MHz AM - CB channel 19 "down one band" - truckers are often heard here (see also 27.635 MHz), 26.740 MHz LSB - European packet and PSK31 frequency, 26.745 MHz AM - popular out-of-band trucker channel USA, 26.755 MHz AM - often active in southern USA + every 10 kHz to 26.955 MHz, 26.775 MHz AM - often active in southern USA (channel 22 down one band - 27.225 MHz - .450 MHz), 26.805 MHz AM - Channel 23 down one band, popular in North America, Latin America and Caribbean, 26.810 MHz LSB - European packet and PSK31 frequency, 26.815 MHz AM - CB channel 26 down one band (active during band openings), 26.820 MHz LSB - European packet and PSK31 frequency, 26.830 MHz LSB - European packet and PSK31 frequency, 26.835 MHz AM - CB channel 28 down one band (similar to 26.815 MHz, 26.905 MHz, 26.915 MHz, etc), 26.840 MHz LSB - European packet and PSK31 frequency, 26.845 MHz AM - popular out-of-band trucker channel USA, 26.855 MHz AM - popular out-of-band trucker channel USA, 26.865 MHz AM - popular out-of-band trucker channel USA, 26.875 MHz AM - popular out-of-band trucker channel USA, 26.885 MHz AM - alternate to 26.915 MHz, others, 26.895 MHz AM - popular out-of-band trucker channel USA, 26.905 MHz AM - alternate to 26.915 MHz, others, Mexican taxicab dispatcher lady also logged on this frequency, 26.915 MHz AM - Big radios USA "915" channel 36 down one band, AM DX channel, 26.925 MHz AM - popular out-of-band trucker channel USA, 26.935 MHz AM - popular out-of-band trucker channel USA. To mirror the 22 meter band or 13.560 MHz 13560 kHz Part 15 band 13.553 MHz - 13.567 MHz (second harmonic, center frequency 27.120 MHz - most popular 22 meter beacons operate on on 13554 kHz - 13559 kHz and 13562 kHz - 13566 kHz. However voluntary donations are welcome, to cover costs for running and maintaining the system. Marketing, import and sale of such radios is illegal if they are distributed as anything other than Amateur Radio transceivers. Prefix Lists. In September 2021 the FCC approved the use of FM on CB radio. McCall's "Convoy" and Laurie Lingo & The Dipsticks "Convoy GB" in 1976 (both of which were Top5 hits). CB's inventor, Al Gross, made the ceremonial first legal British CB call from Trafalgar Square in London. New Zealand and Japan have unique allocations compared to any other country. Manufacturers report an increase in sales, while social media sites like Youtube show a growing popularity in CB radio content, mainly as a hobby. 2200 Meters When it comes to Ham Radio, the only official LF band is 2200 meters. In the U.S., the Citizens Band is composed into 40 radio channels, each assigned by a number from 1 to 40. [3]:13 Originally designed for use by the public sector, the Citizens Radio Corporation sold over 100,000 units, primarily to farmers and the US Coast Guard.[4]. An example of correct designations: C9EF, C9EA, C9RF, C9RA. Multiple CB clubs had formed by this time, which assigned call signs to members, exchanged QSL cards, and lobbied for the legalisation of CB. If you are planning on transmitting, you will need a radio that has been modified to transmit or a dedicated CB Radio. Breaker! Breaker! FCC on deck to approve 11-meter FM CB Unlike the 10 Meter Band, access to these frequencies are unrestricted by the FCC, hence the name "Citizen's Band". The frequency band is HF, 26.9650MHz to 27.4050MHz (40 channels), power output is 4watts for AM and FM and 12watts PEP for SSB. The normal calling and truckers' channel is channel 19, although many truck organisations and groups use other channels to avoid abuse. The password you set for your profile. Users on a channel must take turns talking. The 27MHz frequencies used by CB, which require a relatively long aerial and tend to propagate poorly indoors, discourage the use of handheld radios. Voice transmissions in a Morse code-only segment are easily detectable by authorities. CB ClassB is a more distant ancestor of the Family Radio Service. [c] It was common for a town to adopt an inter-station channel as its "home" channel. Australian CB radio uses AM, USB, and LSB modes (no FM) on 27MHz, allowed output power being 4Watts AM and 12Watts SSB. The older 23channel radios built under the old specifications typically had an output of around 3.5 to 3.8watts output when measured at the antenna connector. During the 1970s and 1980s peak years of CB radio, many citizens band-themed magazines appeared on newsstands. Illegal operations may unintentionally end up on frequencies very much in use. Text is available under the Creative Commons Attribution-ShareAlike License 3. . Truck drivers still use CB, which is an effective means of obtaining information about road construction, accidents and police speed traps. Two more channels between 22 & 23, commonly referred to as 22A & 22B, were available. [26] In April1977, the service was expanded to the same 40channels as the American service. For the convenience of users of the grid were marked by letters. Under this class assignment, a CB radio is classified as a "Personal Radio Service device". Originally, the U.S. had 23CB channels; the 40channel band plan was implemented in 1977. The first CB club in Australia was the Charlie Brown Touring Car Club (CBTCC),[19] which formed in Morwell, Victoria in 1967 and consisted mainly of four-wheel drive enthusiasts. [21], Source:[22] Superheterodyne receivers (using one or two conversion stages) were the norm in good-quality equipment, although low-cost toy-type units used super-regenerative receivers. Prefix Lists | Tango Mike 11m Band DX Group Ham Radio and Freeband - eHam.net