Further information: High frequency beacon, Part 15 beacons - 22m and 11m bands, and Part 95 Class C RCRS type systems that operate as de facto beacons on the six 26-28 MHz RC frequencies 26995, 27045, 27095, 27145 and 27255. The prominence of CB radio grew in Britain partly due to the success of novelty songs like C.W. A short-range simplex radio communications service for recreational use is from 477.5250 to 477.9875MHz FM mode with 38channels and a power output of 500mW. Internet gateway stations are also beginning to appear; although illegal on 27MHz, these units are connected to other CB stations around the world. Late in 2006, the FCC amended the regulation to exclude only 2628MHz to facilitate amateur 10meter operation. 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 . Another mobile antenna is the continuously-loaded half-wave version. Channel36 (or 38 for LSB) became the unofficial SSB "calling channels" for stations seeking contacts, with the subsequent conversation moving to channels3740. The 11 meter band is used by both CB radio, as well as free band 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. [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]. The SE-10MB comes with a UHF connector. In Stephen King's story The Stand, [53]Ralph Brentner's radio signal from Boulder, Colorado was able to be received over CB. 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. In times of high sunspot activity, the band can remain open to much of the world for long periods of time. U. S. "Citizen's Band" (11 Meter Band) Ch. "After much consideration, the FCC realized their 1958 decision to strip these frequencies from the. CB has lost much of its original appeal due to development of mobile phones, the internet and the Family Radio Service. Persons using illegal equipment or accessories still risk prosecution, fines or confiscation of equipment, although this is rarely enforced. Almost all were AM-only, although there were a few single sideband sets. Text is available under the Creative Commons Attribution-ShareAlike License 3. . Furthermore, illegal transmitters and amplifiers may not meet good engineering practice for harmonic distortion or "splatter", which may disrupt other communications and make the unapproved equipment obvious to regulators. SE-6MB Moxon Citizen Band Radio-What is it? With solid state radios becoming more common in the 1970s, the FCC revised this specification at the same time the authorized channels were increased to 40. Far as ground plan antennas the best I have ever used is a 5/8 called a shockwave built in alabama. Because many people were already using 40channel radios prior to legalization, the American band plan (with AM and SSB) was adopted; a VHF band was added in 1994, along with allowing use of the Australian UHF CB channel plan at 476-477MHz On 10November 1980, the Indonesian Directorate General of Posts and Telecommunications issued another decree establishing RAPI (Radio Antar Penduduk Indonesia) as the official citizens band radio organization in Indonesia. In Japan, the 2628MHz range is allocated to fishery radio services and these frequencies are heavily used for marine communications. The old specification was often used in false advertising by some manufacturers who would claim their CB radios had "5watts" long after the specification had changed to 4watts output. Members of these clubs are still active, and have also become amateur radio operators. Project #1 - 2000. It is also illegal to use these radios outside of the Amateur Radio bands by anyone in the US, since they are not type-certified for other radio services and usually exceed authorized power limits. [3]:174 On some newer radios, the modification may be as simple as disconnecting a jumper wire or a diode. 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. (11). You will hear these used particularly on the SSB channels. The BIG difference between 11-meters and the Ham bands is the Calling frequency which is 27.555 Mhz Let me remind you of the 11-meter procedure: 1. [7] CB clubs were formed; a CB slang language evolved alongside ten-code, similar to those used in emergency services. Before it was banned, they use the same allocation as the US. Hungary allows use of the "low channels" for a total of 80channels (26.515MHz to 27.405MHz). Attempts by law-abiding CB users to increase regulatory oversight have been ineffective. South Africa also permits use of standard CB channels1927 (27.18527.275MHz) with AM / SSB permitted. The recent FCC decision to open the 11-meter band to Class D Citizens Band operation makes it possible for anyone (except those under 18 and aliens) to own and operate a short-wave transmitting and receiving station. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. These intermediate frequencies are reserved for the Radio Control Radio Service (RCRS). For each band, only those license classes with privileges on that band are listed. 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. The FCC originally restricted channel11 for use as the calling channel. Unlike amateur radios with continuous frequency tuning, CBs manufactured for export are channelized. Stack two for additional (up to +3 dB) forward gain. The original FCC output power limitation for CB radios was "5watts DC input to the final amplifier stage", which was a reference to the earlier radios equipped with tubes. Until 1975,[12]:14 only channels914 and 23[a] could be used for "interstation" calls (to other licensees). For these bands, the gain is lowered so that the antenna covers a larger bandwidth. The ground radials replace the vehicle body (which is the counterpoise for a mobile whip in a typical vehicle installation). AboutPressCopyrightContact. The Czech Republic authorizes 80 channels as well (same as the German 80-channel plan). Most offenders are not caught for interfering with other CB users; often, their selfmodified equipment generates harmonics and spurs which cause interference to services outside the citizens band and to consumer equipment. 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. [20] After July 1, 1977, the club changed its name to Citizens Band Two Way Communication Club (CBTCC). The club used the prefix "GL" (for Gippsland), since "CB" could not be used. During the 1970s and 1980s peak years of CB radio, many citizens band-themed magazines appeared on newsstands. Russia uses an alphanumeric designation for their CB channel plans, because several "grids" or "bands" of 40channels each are used, along with both AM and FM mode. One AnyTone CB radio review I came across pointed this as an advantage especially if you want to convert the unit into an 11 meter band CB. Standard legal transceivers (UK FM + EU AM and SSB) Below that is a broadcast auxiliary service band, the 11-meter shortwave band, and the 12-meter amateur band. Login The password you set for your profile. Handle with Care) (1977), and Convoy (1978), made heavy reference to the phenomenon, as did television series such as Movin' On (debuted in 1974), The Dukes of Hazzard (debuted in 1979) and the animated series CB Bears (debuted in 1977) helped cement CB radio's status as a nationwide craze in the United States over the mid- to late-1970s. When looking at the FCC/CEPT channel list there are some channels with a spacing of 20kHz instead of the regular 10kHz step. 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. AM and SSB on the freeband and amplifier use are common among enthusiasts. While some users have moved on to other radio services, CB is still a popular hobby in many countries. This agreement provides interference-free operation for all operators by separating the far more powerful SSB stations from the AM stations. Two antennas may be installed for symmetrical appearance, with only one connected. [7], Their use spread further into the general population in the US in the middle of the 1970s. In return, SSB stations stay off the remaining 35channels so they could be used by AM stations. This falls close to the recommended 27.090 MHz to 27.150 MHz bands and the 27.120 MHz, 27.140 MHz, 27.141 MHz and 27.145 MHz frequencies. Unlike the 10 Meter Band, access to these frequencies are unrestricted by the FCC, hence the name "Citizen's Band". 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. [f] Internet gateways and radio repeaters are allowed on channels 18[27.175MHz] and 23[27.255MHz]. 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. Other regional cities such as Bendigo, Mildura, Mount Gambier and Port Augusta, developed lively, colourful CB radio communities. For example, (C9EF, C9F, C9RF), end the used modulation (FM) or (F), (AM) or (A). 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. While a SSB radio has three possible "modes" (AM, LSB, USB) it can operate in, operation is still limited to the same 40channels. In some instances, the sale or ownership of foreign-specification CB gear is not illegal but its use is. The other problem with shortrange CB use is propagation; during longrange "skip" conditions local signals are inaudible due to reception of multiple distant signals. Skip contributes to noise on CB frequencies. Older amateur radios may require component changes; for instance, the 1970s Yaesu FT-101 was modified for CB by replacing a set of crystals used to tune portions of the 10meter band, although some variants of the FT-101 were sold with the US FCC channels standard and were capable of transmitting above and below the legal 40channels by another 10or more channels. Two magazines that dominated the time period were S9 CB Radio and CB Radio Magazine. These frequencies may have evolved because tuned circuits (particularly antennas) work best in the middle of the band; the frequency for channel19 (not channel20) is the center of the 40channel US band and other things being equal, signals will be transmitted and heard the farthest. [18] On January 1, 1982, the American 40channel band plan was adopted. On UHF 477MHz, citizens band PRS radio devices are allowed 5 watts power output on FM on 39assigned channels spaced at 12.5kHz intervals from 477.0125 to 477.4875MHz. The citizens band radio service originated in the United States as one of several personal radio services regulated by the Federal Communications Commission (FCC). This will also improve the ability to "shoot skip" in the 11 meter Citizens Band. Since roughly 20052006, Russia and Poland have adopted use of the standard US channel offset as well as the older channel plan, for two overlapping "grids" of channels. Some manufacturers tried to sell more radios by claiming that with three different modes possible for each channel, it was the equivalent to 120channels. Freeband CB channels CB frequencies on a ham radio is CB 10 meter is CB 11 meter freebanding CB channels CB channels police CB channels ham radio Baofeng CB CB-27 PR-27 taxi cab radio Uber Lyft radio two-way radio walkie-talkie FRS GMRS UHF VHF MURS VHF245 PMR446 KDR444 409 MHz band 406 MHz 25615 30105 25.615 MHz 30.105 MHz 25.165 28.755 MHz 29.255 MHz 29.655 MHz 29.665 MHz 29.6 MHz 29.695 MHz 26172 kHz 26.172 MHz CB frequencies near me emergency frequencies near me ham radio frequencies disaster frequencies emergency channels 26121.5 kHz. The regulations called for one licence per CB radio. 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. However, external linear amplifiers are often used illegally. New Zealand authorizes use of their New Zealand specific 40channel 26.33026.770MHz frequency plan in addition to the "standard" 40channel 26.96527.405MHz frequency plan for a total of 80HF CB channels. 27MHz radios have the advantage of not requiring a certificate of proficiency to use,[23] however they may not be monitored by rescue organisations or larger vessels. However, frequencies such as 27.005MHz AM are widely pirated in Japan with very high power transmitters. As in Germany, digital modes are allowed on certain frequencies. 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. The current specification is simply "4watts output (AM) or 12watts output (SSB)" as measured at the antenna connector on the back of the radio. During the 1970s, the FCC banned the sale of linear amplifiers capable of operation from 24 to 35MHz to discourage their use on the CB band, although the use of highpower amplifiers continued. There was much controversy over whether the Coast Guard should monitor CB radio, but for safety they did so, using Motorola base stations at their search and rescue stations. Many freeband operators use amateur radios modified to transmit out of band, which is illegal in some countries. A typical citizen band radio service is a two-way radio system that can be used for personal or business communication. Military HF use [ edit] In the US and Canada, as well as the Americas (ITU Region 2) as a whole, there are no pre-designated HF allocations for military use. The business band requires an FCC license, and usually results in an assignment to a single frequency. Australian CB radio uses AM, USB, and LSB modes (no FM) on 27MHz, allowed output power being 4Watts AM and 12Watts SSB. 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. Freebanding is done with modified CB or amateur equipment, foreign CB radios which may offer different channels, or with radios intended for export. I need to ask why you say "The Yaesu FT-101, with its "peculiar" (ARRL) 11-meter band position was the first radio to allow the CB'er to operate Freeband, ushering in a new style of 11-meter operation" are you suggesting that the ARRL had anything to do with Yaesu including an 11 meter position on the band switch? The power-reduction switch is also useful in reducing TV interference. Some member countries permit additional modes and frequencies; for example, Germany has 40additional channels at 26MHz for a total of 80. Channels 23[27.235MHz], 24[27.245MHz], and 25[27.255MHz] are not on the same radio frequencies in the. For instance, channel19 shifted two bands up is 28.085MHz, which is in a Morse code / data-only part of the 10meter ham band. Frequency Range: 135.7-137.8 kHz: CW, Phone, Image, RTTY/Data We mimick Amateur Radio bands as well as the 11 meter band. CB operators have communicated across thousands of miles and sometimes around the world. Changing radio propagation for long-distance communications due to the 11year sunspot cycle is a factor at these frequencies. scantheband Member May 17, 2007 62 0 16 USA Mar 24, 2009 #2 Check out a Yaesu FT-757GX. SSB radios also have the standard AM mode for communicating with standard CB radio models. Easy to convert to 11 meter band CB. [27], In Indonesia, CB radios were first introduced about 1977 when some transceivers were imported illegally from Australia, Japan and the United States. This helped prevent overcrowding on channel11, enabling a CBer to monitor a town's home channel to contact another CBer from that town instead of a making a general call on channel11. Transmitter power is limited to 4watts in the US and the EU. FM operations in the 10 meter Amateur Radio Service band are mainly conducted on the spectrum between 29.5~29.7 MHz. Channels24[27.235MHz], 25[27.245MHz], 52[26.675MHz], 53[26.685MHz], 76[26.915MHz, and channel77[26.925MHz], The term "outbanding" was introduced by Kneitel in the August1979 issue of, * GL 226 (VK3PJB) ex-Secretary GL Club, Australia, channel assignments for CB use in the United States, Learn how and when to remove this template message, European Conference of Postal and Telecommunications Administrations, "Fading CB craze signals end to licensing", "Back in view, a First Lady with her own legacy", "Radiocommunications (27MHz Handphone Stations) Class Licence 2015", "Radiocommunications (Maritime Ship Station 27MHz and VHF) Class Licence 2015", "Licensing of General Radio Service Equipment", "Citizens Band (CB) Scanner Frequencies and Radio Frequency Reference", "Arrt du 31 mars 1992 relatif aux caractristiques techniques et aux conditions d'exploitation des postes C.B. 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. Numbers of channels is commonly minimum 40 (1 band) maximum 240. He then goes on to point out that 11-meter signals "can travel to the far corners of the earth. [21], Source:[22] 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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