CB ClassB is a more distant ancestor of the Family Radio Service. FM operations in the 10 meter Amateur Radio Service band are mainly conducted on the spectrum between 29.5~29.7 MHz. My first attempt at making a CB radio antenna for the 11 meter band. Originally, CB (named Citizens Radio by the Federal Communications Commission as of 1972) required the use of a callsign in addition to a purchased license ($20 in the early 1970s, reduced to $4 on March 1, 1975); however, when the CB craze was at its peak many people ignored the requirement and invented their own nicknames (known as "handles"). Commonly there is 'tree' major types of different CB-Radio's Type 1: Uses channels to decide operating frequency. Japan's CB allocation consists of 8voice and 2radio control channels with a maximum power output of 500mW. CB operators have communicated across thousands of miles and sometimes around the world. Base CB antennas may be vertical for omnidirectional coverage, or directional "beam" antennas may be used to direct communications to a particular region. Changing radio propagation for long-distance communications due to the 11year sunspot cycle is a factor at these frequencies. Initially, the FCC intended for CB to be the "poor man's business-band radio", and CB regulations were structured similarly to those regulating the business band radio service. 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". In the United States, it is no longer illegal to engage in (or attempt to engage in) CB communications with any station more than 250km (160mi) from an operator's location. This includes fishing net radio location beacons, paging services, on site or on campus pagers, 26 MHz hospital pagers, telemetry and data link networks, government, military, HF marine and FM land mobile. In radios with more then 40 channels they are divided into 'bands' consisting of 40-80 channels. The current specification is simply "4watts output (AM) or 12watts output (SSB)" as measured at the antenna connector on the back of the radio. The loading coil may be on the bottom, middle, or top of the antenna, while some antennas are wound in a continuously-loaded helix. We mimick Amateur Radio bands as well as the 11 meter band. Today, the primary purpose of a callbook is to allow radio operators to send a confirmation post card, called a QSL card, to an operator with whom they have communicated via radio. Members of the CBTCC formed what became known as Australian Citizens Radio Movement (ACRM) in the early 1970s; this organization became the voice for legalization of CB radio throughout Australia. The FCC originally restricted channel11 for use as the calling channel. Amateur Radio Service was an egregious act," said a spokesperson. Licence needed: No; Good emergency choice: No; Amateur Radio (Ham) 1.8 - 1300 MHz With Gaps In Between [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]. In some instances, the sale or ownership of foreign-specification CB gear is not illegal but its use is. These intermediate frequencies are reserved for the Radio Control Radio Service (RCRS). An example of correct designations: C9EF, C9EA, C9RF, C9RA. Ground-plane kits exist as mounting bases for mobile whips, and have several wire terminals or hardwired ground radials attached. RCRS was formerly known as the Class C Citizens Radio Service until the 1976 changes. [12]:12 Channel10 was originally often used for highway travel communications east of the Mississippi River, and channel19 west of the Mississippi; channel19 then became the preferred highway channel in most areas, as it did not have adjacent-channel interference problems with channel9. A common mobile antenna is a quarter-wave vertical whip. After peaking in the 1970s and early 1980s, the use of 27MHz CB in Australia has fallen dramatically due to the introduction of 477MHz UHF CB (with FM and repeaters) and the proliferation of cheap, compact handheld UHF transceivers. Australian CB radio uses AM, USB, and LSB modes (no FM) on 27MHz, allowed output power being 4Watts AM and 12Watts SSB. With amplifiers being illegal to use on a CB, it seems that advertising and selling 11 meter amplifiers could tend to get someone in trouble. Novice and Technician licensees outside ITU Region 2 may use CW only between 7.025 and 7.075 MHz and between 7.100 and 7.125 MHz. During low sunspot activity it may be impossible to use skywave at all, except during periods of Sporadic-E propagation (from late spring through mid-summer). The following chart shows the 11 metre band division numbers that are internationally agreed by DX organisations. In Australia, CB Action Magazine was produced monthly from mid-1977 and continuing publication through until the early 1990s. The callsign with which you registered. The club used the prefix "GL" (for Gippsland), since "CB" could not be used. (C9EFM, C9EF, C9EAM, C9EA), 27.144MHz Japanese CB Channel 8 Calling Channel, 27.048MHz Japanese Remote Control R/C Frequency, 27.136MHz Japanese Remote Control R/C Frequency, 27.152MHz Japanese Remote Control R/C Frequency, RF gain: Adjusts the RF amplifier gain of the receiver; used to reduce received background noise, and to reduce "clipping" due to over-amplification of already-strong signals (for example, when the receiver is near the transmitter), NOR / 9 / 19: Quickly tunes preset channels for calling or emergency use, Echo mic: Deliberately introduces distortion and echo into transmitted audio, This page was last edited on 1 May 2023, at 16:35. The first 477MHz CB radio in 1977 was designed and made in Australia by Philips TMC and was a 40channel CB called the FM320. It does not require a license like other transmitters. The Indonesian government legalized CB on 6October 1980 with a decision by the Minister of Communications, the "Ministerial Decree on the Licensing for the Operation of Inter-Citizens Radio Communication". A dipole inside a loft. The 11 meter band is used by both CB radio, as well as freeband unlicensed hobbyists, Church radio broadcasts in Ireland and elsewhere in Europe, the military, for studio-to-transmitter links (STLs), data links, buoys, fishnet tracking systems, pagers and other non-voice purposes. Aside from legal CB allocations and freebanding (or outbanding), there are several legal licensed services allocated to this interesting chunk of spectrum. The technology has also given way to more compact CB radios with far more features afforded in older models. However, I was listening to a guy on the CB and he said he was a trucker and was using a 10 meter amplifier. By the mid-1960s "mixer" circuits made frequency-synthesized radios possible, which reduced cost and allowed full coverage of all 23channels with a smaller number of crystals (typically14). Early receivers did not cover all the channels of the service; channels were controlled by plug-in quartz crystals, with one of several operating frequencies selected by a panel control in more expensive units. [6] There are several other classes of personal radio services for specialized purposes (such as remote control devices). Feel free to cut and paste this list into your favourite word processing or DTP software and produce a chart in any format you like to help whilst DX'ing. [24][25], In Canada, the General Radio Service uses the identical frequencies and modes as the United States citizens band, and no special provisions are required for either Canadians or Americans using CB gear while traveling across the border. Many types of amateur transceivers may be found on CB and freeband, ranging from full-coverage HF transceivers to simpler 10meter mobile radios. However, frequencies such as 27.005MHz AM are widely pirated in Japan with very high power transmitters. . Australia also permits the use of marine VHF radio. Some links may be affiliate links. [14] Most highway travelers monitor channel19. These radios may have 6 or even 12bands, establishing a set of quasi-CB channels on many unauthorized frequencies. Over the next several years antenna regulations were relaxed, with antenna length increasing to 1.65meters (5'5") and centre- or top-loading of the main radiating element permitted. The rules regarding non-approved radios and power levels above 4Watts on AM/FM and 12Watts on SSB still apply, despite deregulation. Channels1014 and 23, after channel9 was reserved for emergency use. Russian CB allocations follow the CB band 26.96527.405MHz (designated as bandC), as well as 26.51526.955MHz (designated as bandB) and 27.41527.855MHz (designated as bandD). https:/. The terms "interstation" and "intrastation" appear in the FCC's Part95 rules from that time period. [40] Lax enforcement enables manufacturers of illegal linear amplifiers to openly advertise their products; many CB dealers include these amplifiers in their catalogs. Almost all were AM-only, although there were a few single sideband sets. 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. Similar to Internet chat rooms a quarter-century later, CB allowed people to get to know one another in a quasi-anonymous manner. Building and experimenting with antennas can be an interesting part of the radio hobby. A fullwave antenna on the 11 meter band is 36 foot long but I have never once heard of anyone using a fullwave on the 11 meter band. Far as ground plan antennas the best I have ever used is a 5/8 called a shockwave built in alabama. The American radio amateur II meter allocation was formally taken away around 1958, some of the spectrum they lost became part of the new 23 channel allocated "class D 27 Mhz citizens band service", prior to that citizens band in the USA had been allocated in the 460/470 Mhz UHF band slot, starting as early as 1945 in law, and well established by 1948, that UHF allocation was eventually lost . Paging is permitted on channel1 (26.965MHz) and channel80 (26.955MHz) is the recommended call channel for Czech CB radio operators. for RadioShack stores in the mid-1990s. He appeared in an interview (with clips having fun talking to children on his home CB radio station) in the NBC Knowledge television episode about CB radio in 1978. To achieve this effect, the antennas must be separated by about eight feet, only practical on large trucks. The maximum power allowable on the MPT1320 27/81 system was 4watts (in common with the American system), although initially radios were equipped to reduce output power by 10dB (to 0.4watts) if the antenna was mounted more than 7meters (23') above ground level. Skip is particularly common on the 11 meter band, which the FCC set aside for CB use among 40 channels ranging from 26.965 MHz to 27.405 MHz. The old MPT1320 27/81 band will continue to be available for the foreseeable future. The balance of the antenna is made with 6061-T6 aluminum, UV resistant PVC and stainless steel hardware. When UHF CB was first legalised the 27MHz CB Band was intended to be closed to Australian CBers in 1982 and only the 477MHz UHF band was to continue, however this did not eventuate. Some member countries permit additional modes and frequencies; for example, Germany has 40additional channels at 26MHz for a total of 80. Click picture for ordering and additional information. For example, channel"11A" is 27.095MHz, spaced 10kHz after standard channel11 (at 27.085MHz) is used to provide for part of European railroad's Eurobalise radio communication with trains. A few operators still illegally utilize the 40CB channels. Generally the CB band is band "D" or the "mid band". With the earliest sets two quartz crystals were needed for transmitting and receiving on each channel, which was costly. What the CB community generally refer to as the 11m band or freeband is considered to cover is 25 MHz to the beginning of 28 MHz although most activity happens around 26-28 MHz. I'm 37 years old and have own a lot of deffrent ground plan antennas. This causes interference to the authorized low-power 1Watt DSB (1Watt AM) fishery radio service. [34], The standard channel numbering is harmonized through the FCC (America) and the CEPT (Europe).[d][35]. 27.125 is another very popular frequency for beacons 27.125 beacon 27.125 MHz beacon. Skip contributes to noise on CB frequencies. By the late 1960s, advances in solid-state electronics allowed the weight, size, and cost of the radios to fall, giving the public access to a communications medium previously only available to specialists. Lax enforcement of the rules on authorized use of CB radio led to widespread further disregard of the regulations (such as for antenna height, distance communications, licensing, call signs, and transmitter power). scantheband Member May 17, 2007 62 0 16 USA Mar 24, 2009 #2 Check out a Yaesu FT-757GX. The dates are hard to confirm accurately, but early use was known around large cities such as Jakarta, Bandung, Yogyakarta, Surabaya and Medan. Legal (shortrange) use of CB radio is sometimes impeded by users of illegal highpower transmitters, which can be heard hundreds of miles away. 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.
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