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Vhf radio frequencies uk?
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Vhf radio frequencies uk?
VHF radio is the preferred method for calling for help on the water because it broadcasts signals that nearby radios can receive. The tuning control on the right only affects the standby frequency. It also shows the internationally agreed spectrum allocations of the International Telecommunication Union (ITU). Aug 23, 2022 · UHF frequencies in the UK. To prevent interference between different users, the generation and transmission of radio. Low-band UHF: 450-806 MHz. Here is a list of commonly used frequencies (across the radio’s frequency range) that are legal for use by Baofeng UV-5R users in the UK. Standard Horizon HX890E VHF handheld marine radio. 75 Frigg Oil/Gas Rig 129. In the UK DAB & DAB+ radio is. Meteor scatter operation can take place up to 26kHz higher than the reference frequency5kHz channels numbered RV48-RV63000 MHz, output=145 12. Maritime Mobile Service Frequencies. Here's a complete guide to explain more about licence-free radios List Of UK Simple Radio Frequencies VHF Low Band. UK Amateur Radio Frequencies. Some channels are simplex, meaning the radio transmits and receives on the same frequency. 00:00 Volume: A brief 15-30 sec ad will play at. Jan 9, 2008 · This is the list of VHF marine frequencies you can upload into your scanner. During the 10 minute pass the frequency will move lower shifting a total of 7 kHz down to 145. Upgrade now to take advantage of our Premium Services. 675 MHz) - Have been set aside for coordinated search and rescue operations. 6MHz up - so channel 1, for example means a ship would transmit on 156. Ship stations shall avoid harmful interference to such communications on channel 06 as well as to communications between aircraft stations. The idea behind band planning is that it assigns frequencies for certain activities in such a way that all current users can practice the various modes of amateur radio with a minimum of mutual interference. It also shows the internationally agreed spectrum allocations of the International Telecommunication Union (ITU). Leeds Bradford International ATIS050 MHz. Simplex channels are used for ship to ship and ship to. There is a map of stations with an FAC here, driven by current ETCC data, and a live connectivity map driven by data. 425 MHz) Channel "80" (157625) Channels M and M2 are UK channels and should only be used in UK territorial waters. NOAA Weather Radio (NWR) Frequencies Seven Frequencies in the VHF Public Service Band: 162500 MHz: 162525 MHz : 162 NWS again recommends having a separate NWR receiver aboard to maintain a simultaneous watch on NWR and marine VHF channels. The links below provide links to UK and world weather information. 0500 Aberdeen Dyce AS 1216750 Tower Pri VHF: 118. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. Frequency Range : 156425 MHz / 155425 MHz (Private channels). 1500: Alderney: Radio/Information/Tower: 125. Walkie talkie transmissions can extend from a couple of hundred metres to a few miles or more, depending on their power output (measured in. 0 SAR helicopter winching (simplex) Use any web browser to search the WTR and find local frequencies to program into your scanner. This web site is dedicated to the memory of Ralph Blackburn G3PYR, who not only taught me CW, but also instilled in me a love of Top Band operating, for that I will always be grateful, and it is the reason why I hold the amateur radio call sign G4PYR. Reader maltesh writes in with a clever strategy for keeping Gmail's POP. Specific channels are used for particular purposes, including for emergencies. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. Walkie talkie transmissions can extend from a couple of hundred metres to a few miles or more, depending on their power output (measured in. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. Royla Solent YC Race Management 73. Channel Ship (MHz) Shore (MHz) 1 156650 01A 156050 2 156700 3 156750 03A 156150 4 156800 04A 156200 5 156850 05A 156250. The radio will say "Offset frequency". Matchwood Military Port. Use any web browser to search the WTR and find local frequencies to program into your scanner. The most comprehensive and up to date UK radio scanner frequency database covering WTR, PMR, Airband, Airports, Air Control, Mil Airband / Airfields, Ham and more. Coastal Radio Stations & Frequencies. Brest Menhir Radar Frequencies. The frequencies are usually less congested compared to PMR446. Alternatively, you can search the UK repeaters, gateways or beacons database. Some channels are simplex, meaning the radio transmits and receives on the same frequency. answered Oct 2, 2017 at 15:27 18 A Yaesu FT-857D tuned to 50. This is the list of VHF marine frequencies you can upload into your scanner. The most comprehensive and up to date UK radio scanner frequency database covering WTR, PMR, Airband, Airports, Air Control, Mil Airband / Airfields, Ham and more. The USCG VHF network can pinpoint the source of a transmission, improv-ing. A standard handheld marine VHF, mandatory on larger seagoing vessels under the GMDSS rules A VHF set and a VHF channel 70 DSC set, the DSC on top A vintage (76-89) marine VHF radiotelephone. The small part assigned to marine VHF is 156 MHz – 161 MHz. German Mil Frequencies Find and Map Frequencies in the UK to listen to on your radio scanner, our unique range feature allows to find signals within a user defined distance from your Town or Postcode. UK 144MHz Band Plan. London Volmet Main UK Radio Scanner Frequencies. No ads for Premium Subscribers. Belgian Mil Frequencies. Raymarine's Ray90 and Ray91 is a full-function VHF marine radio with Class D Digital Selective Calling (DSC) and a built-in GPS receiver International and Canadian VHF marine bands. The 2-meter amateur radio band is a portion of the VHF radio spectrum that comprises frequencies stretching from 144 MHz to 148 MHz [1] in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) [2] [3] and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa. Railroad radios display the transmit and receive frequency as AAR channel numbers. VHF (MHz) UHF (Channel 21-60) (MHz) 176300: 200700: 470 - 790: 177. VHF Marine Radio. 8 - 175 MHz and 863 - 865 MHz and 2400 - 2483. These frequencies are allocated by. Multiband vertical HF antennas are a popular choice among amateur radio operators due to their versatility and ease of installation. Find radio frequencies on RadioReference. As well as an extended VHF frequency section there are now HF Frequencies, details of NAVTEX, and more. The new channel number for Safetycom will be 135 This is the airband 'semi official' UK frequency used by non registered airfields, grass strips, microlight schools and so on. For completeness USA channels are shown, 109 to 119 are actually duplex channels, but are used as simplex channels in UK. 8 MHz) Cospas-Sarsat or SAR (satellite-based search and rescue) - 406 MHz to 406 Long Distance Distress Calls HF (High Frequencies) 4125 kHz. In Europe and Africa (defined as International Telecommunication Union (ITU) region 1) and in Australia and New Zealand, it spans from 87. To find local police radio frequencies on RadioReference Ham radio frequencies are a critical part of the ham radio hobby. DAB Frequency Band – 215Mhz-230Mhz. May 31, 2023 · Radio transmitters, including two way radios, and the VHF or UHF frequencies they operate on, are governed, licensed and co-ordinated by Ofcom in the UK. VHF Spectrum Release: 705 & 146-147 MHz; Microwave Spectrum Release: 24 GHz; Terahertz (>275 GHz) Enquiries For queries about the Band Plans please contact the relevant spectrum manager:-Up to 30MHz: HF Manager; VHF and UHF Bands: VHF Manager; Microwave Bands: Microwave Manager; For other background—see the Spectrum Forum pages Beacons & Repeaters For information about beacons, see: HF Beacons; VHF, UHF and Microwave Beacons; UK Repeaters. hiawatha and the peacemaker The important numbers are as follows: Ch 16 is the Distress, Safety and Calling channel. 75 Frigg Oil/Gas Rig 129. Airfield IATA IACO Designation Freq 833kHz Actual Frequency Aberdeen Dyce Approach Pri VHF 119. Therefore, the BBC invested in a new radio transmission system in the very high frequency (VHF) region of the spectrum, using frequency modulation (FM). UK Marina Channels and their Frequencies are : M1=37A (157. This web site is dedicated to the memory of Ralph Blackburn G3PYR, who not only taught me CW, but also instilled in me a love of Top Band operating, for that I will always be grateful, and it is the reason why I hold the amateur radio call sign G4PYR. The new frequencies, which follow ECC Decision (15)05, create greater capacity by. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. UHF - Ultra High Frequency. The links below provide links to UK and world weather information. UK Airband Frequencies VHF Control UIR, FIR, TMA Jul 2024. All searches require 2 characters minimum, wildcards are. Learn about light frequencies. Marine VHF radios are used for a variety of purposes including; contacting harbours, marinas, locks, summoning the rescue services. In an emergency, as well as being able to call the nearest lock keeper, port control or coastguard (depending where you are), marine-band VHF also gives you the. 850 MHz), M2=P4 (161. huskers illustrated boneyard For bands named Air, see Air (disambiguation) § Artists. Find Radio Scanner Frequencies for Isle of Wight UK, Lat Long 5033333 Range 10 Miles at Radioreference UK, use your web browser to search the WTR and download, print and map frequencies. Frequencies. Marine VHF radios are used for a variety of purposes including; contacting harbours, marinas, locks, summoning the rescue services. The USCG VHF network can pinpoint the source of a transmission, improv-ing. VHF Marine Radio. Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore (for example with harbormasters ), and in certain circumstances ship-to-aircraft. 425 MHz), M=80 (TX 157625 MHz. The VHF/UHF bands are also home to a wide range of systems, including repeaters, gateways and satellites. It also shows the internationally agreed spectrum allocations of the International Telecommunication Union (ITU). com lists local police scanner frequencies in the United States and many other countries. 145000 MHz All Modes - Satellite exclusive. Brest Menhir Radar Frequencies. 400 Mhz U272 ATV Talkback SU17 433. 118 MHz Description000 MHz. In the UK and part of Ireland, Band III was originally used for monochrome 405-line television;. 33Khz channel spacing. Use full or partial matches to search by Callsign, Town, Frequency or Locator. Radio facilities directly involved in the production or control of the programme material The most complete database of radio communications data The most important VHF channel frequencies are VHF Channel 9 and Channel 16. Like MURS, the Freenet frequencies are interleaved with business or commercial band frequencies that require a regular business radio license to operate on. The links below provide links to UK and world weather information. code 971 irs transcript On our more recent radios, channel 37a will display as. UHF radio frequencies are between the range 300 MHz to 3 GHz; Business users operate between the range of 400MHz to 470 MHz; Licence-free (PMR446) walkie-talkies are also in the UHF frequency band, using a range of channels in the 446 MHz frequency. 75 Gleneagles Helicopters 12975 Manx Ops 129. UHF - Ultra High Frequency. The FM broadcast band is a range of radio frequencies used for FM broadcasting by radio stations. VHF provides an independent, robust, well-proven network, which is ideally suited for use in remote, mountainous areas and can be deployed anywhere; a key part of the toolkit for individual rescue teams. The rightmost column labled Common indicates the channels which are the same in all three band plans. Primary Ship to Ship UK Scanner Frequencies. 650MHz - which strictly speaking is semi-duplex. VHF (MHz) UHF (Channel 21-60) (MHz) 176300: 200700: 470 - 790: 177. VHF Marine Radio. Which VHF Radio Channels Can I Use? Channel 16: For hailing, safety and emergency use only Channel 9: Pleasure-boat hailing channel Channels 68, 69, 71, 72 and 78A: Recreational working channels Channels 1, 7A, 8, 10, 11, 18A, 19A, 63, 77, 79A, 80A and 88A: Commercial channels (Pleasure boaters are supposed to stay off them. Raymarine's Ray90 and Ray91 is a full-function VHF marine radio with Class D Digital Selective Calling (DSC) and a built-in GPS receiver International and Canadian VHF marine bands. There is a map of stations with an FAC here, driven by current ETCC data, and a live connectivity map driven by data. Main category is Europe that is about Radio scanner in european countries. Below is a list of commonly used frequencies for different bands in the UK. Beacons provide an essential service for propagation, development and testing. 550), any receiver sold today should. Only. 0500 Aberdeen Dyce AS 1216750 Tower Pri VHF: 118. Ofcom UK Frequency Allocation (UKFAT) Page. Previously, Radio 1 had 'borrowed' BBC Radio 2's FM frequencies for approximately 24 hours each week, gradually reducing at the end of the 1980s until the final 'borrow' took place in March 1990, five months before Radio 2 became the BBC's first FM-only service when on 27 August 1990, BBC Radio 5 began broadcasting on Radio 2's MW frequencies. Airfield IATA IACO Designation Freq 833kHz Actual Frequency Aberdeen Dyce Approach Pri VHF 119. No ads for Premium Subscribers.
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Royla Solent YC Race Management 73. Police, Fire and Ambulance (England) All wide area and local Police communications are carried out on the UK wide TETRA network called Airwave using a mixture of Motorola, Sepura and EADS radio terminals. Radio facilities directly involved in the production or control of the programme material The most complete database of radio communications data The most important VHF channel frequencies are VHF Channel 9 and Channel 16. The VHF omnidirectional radio range (VOR) is a short/medium range navigation aid. Brest Menhir Radar Frequencies. The Ultra High Frequency, abbreviated as UHF, are radio waves that also travel mostly via the line of sight. 525 MHz (channel 70), 161. The small part assigned to marine VHF is 156 MHz - 161 MHz. Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore (for example with harbormasters ), and in certain circumstances ship-to-aircraft. Some historic information can be found here: www. 425 Mhz U274 SU18 433. Apart from this, there's the 70cm simplex frequency as well at 446 MHz. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. (not floating for one!) but at the price they are usef. There are VHF Shared frequencies and also UHF (Channel 38) Shared frequencies. M & VF. Only certain fixed frequencies are available to be. You should always monitor Channel 16 when your radio is not in use. The 144MHz UK band plan is based on the International Amateur Radio Union (IARU) Region-1 band plan. the Third Programme on the current Radio 3 frequencies. 650 MHz) - Bridge to Bridge navigation frequency300 MHz), Channel 10 (156. Beacons provide an essential service for propagation, development and testing. mamigianyy The UKAFG offers a number of products for the UK Airband and scanner enthusiast, these include, A printed ring bound frequency guide released yearly. Access is not restricted to specific frequencies and users can re tune within the stated range to any usable frequency. Northern England and Northern Ireland Frequency Reference Cards - both sides on one A4 sheet Northern England and Northern Ireland Frequency Reference Cards - both sides on separate A4 sheets Southern England and Wales Frequency Reference Cards - both sides on one A4 sheet Only. Red Channels are private channels they are not availablre for use by non SAR / RNLI vessels. The 144MHz UK band plan is based on the International Amateur Radio Union (IARU) Region-1 band plan. 650MHz - which strictly speaking is semi-duplex. com by accessing its database and selecting the desired state and city from the map or the drop-down menus located below the map RadioReference. Walkie-talkies used mainly for outdoor / open country work use these VHF frequencies0500 MHz0625 MHz0875 MHz. It includes information on various bands, such as the HF band, VHF band, and UHF band. Frequencies immediately below VHF are denoted high frequency (HF), and the next higher frequencies are known as ultra high frequency (UHF) VHF radio waves propagate mainly by line-of. Whether you’re looking for modern or classic, you’ll be sure to find your ideal kitchen with our guide of the best fitted kitchens companies of 2022. The allocated bands for amateurs are many megahertz wide, allowing for high-fidelity audio transmission modes ( FM ) and very fast data transmission modes that are unfeasible for the kilohertz -wide. Beacon frequencies and operation are coordinated based on IARU Region 1 technical guidance and band planning. From The RadioReference Wiki. verified copy and paste instagram Aug 15, 2020 · In general, VHF radios operate in the 138-174 MHz frequency band and UHF radios operate in the 400-512 MHz frequency band making UHF roughly three times higher in frequency than VHF. Best handheld VHF on test. AIS (Automatic Identification System) is the mariner's most significant development in navigation safety since the introduction of radar. On our more recent radios, channel 37a will display as. UK Frequency Allocation Table (UKFAT) Last updated: checking…. Ensure you are on the correct band. However this can differ case by case. Cinq Mars La Pile RAKI Frequencies. Display Frequencies. For completeness USA channels are shown, 109 to 119 are actually duplex channels, but are used as simplex channels in UK. Frequencies above 30 MHz are referred to as Very High Frequency (VHF) region and those above 300 MHz are called Ultra High Frequency (UHF). Page 1 of 21 BRITISH & IRISH VHF MARINE CHANNEL LIST Please send any updates, additions or corrections to me at the following email address robertmaskill@coastalradiouk This is the list of VHF marine frequencies you can upload into your scanner. Some radios have channels 3A (1560750), and 64A (156 UK 50MHz Band Plan. North West Radio Group UK, AllStar Node 40081: Amateur Radio 1 Online: Essex: MB7ISX - Thames Estuary Amateur Radio Simplex Gateway: Amateur Radio 0 Offline:. xanax 0.5 mg image At times of enhanced radio propagation usually during the summer months when high. 2-meter band. For recreational boaters, it’s one of the most important marine radio frequencies to monitor. The radio is allowed to transmit on that frequency (CB, FRS, MURS). VHF radio signals are those on frequencies from 30MHz - 300MHz. Below is a list of commonly used frequencies for different bands in the UK. VHF Marine Channels 16, 67, 61, 12, 74 and 97 Live Audio Feed on Broadcastify Amateur Radio Frequencies – please note: only one mode active at a time *** Current Status of ISS Stations *** FM VOICE for ITU Region 1: Europe-Middle East-Africa-North Asia800; Uplink 145. Region 1 exceptions and JS8Call frequencies. Dutch Mil Frequencies. Here for discussion purposes is a draft US frequency list following your concept which I am going to post on some US prepper sites with link-back to here to see if I can generate any interest. You should always monitor Channel 16 when your radio is not in use. 425 MHz), M=80 (TX 157625 MHz. For bands named Air, see Air (disambiguation) § Artists. These are 06, 08, 72 and 77. These are combined transmitter/receivers that operate on allocated frequencies known as ‘channels’. The frequencies are usually less congested compared to PMR446. A windows PC frequency database program Squawker PC. Channel 16 is the most important VHF marine radio channel.
VHF Marine Channels 16, 67, 61, 12, 74 and 97 Live Audio Feed on Broadcastify Amateur Radio Frequencies – please note: only one mode active at a time *** Current Status of ISS Stations *** FM VOICE for ITU Region 1: Europe-Middle East-Africa-North Asia800; Uplink 145. UHF - Ultra High Frequency. com lists local police scanner frequencies in the United States and many other countries. UK LAND SAR VHF CHANNELS Frequencies managed by MCA. Meteor scatter operation can take place up to 26kHz higher than the reference frequency5kHz channels numbered RV48-RV63000 MHz, output=145 12. instant win sweepstakes Wavelength and frequency After some amplitude modulation experience with VHF, it was realized that FM radio was a much better alternative for VHF radio than AM. October 2009 Page 4 of 23 Version 6. Here's a complete guide to explain more about licence-free radios List Of UK Simple Radio Frequencies VHF Low Band. For example, these numbers will be referred to over-the-air as "1616" for AAR channel 16 (160. Find UK Amateur Radio Frequencies to program your radio scanner, 10m, 6m, 4m, 2m, 70cm. Frequency allocations vary by country and ITU region. air india flight tracker Channels 1, 7A, 8, 10, 11, 18A, 19A, 63, 77, 79A, 80A and 88A: Commercial channels (Pleasure boaters are supposed to stay off them. • Airport Frequencies. Channels go in a sequencing number from channel 1 to 28 and then 60 to 88, between 28 and 60 are private channels. hi point c9 aftermarket parts The term refers to the average signal wavelength of 6 meters. 850 MHz), M2=P4 (161. Works on any PC or Mobile running Windows, Mac, IOS, Android and more. DSC ONLY (no voice calling) 72, 77. 75 Gleneagles Helicopters 12975 Manx Ops 129. It includes both the ship and the shore frequencies. At times of enhanced radio propagation usually during the summer months when high. Marine VHF: Channel 67 UK Small Craft Irish SAR: Marine 67 SmallC: 156.
During the 10 minute pass the frequency will move lower shifting a total of 7 kHz down to 145. In an emergency, as well as being able to call the nearest lock keeper, port control or coastguard (depending where you are), marine-band VHF also gives you the. Enter the repeater output frequency, such as 147060. While some older Weather Radio receivers will only have three frequencies (162475 and 162. Many countries have assigned closely related safety communications traffic to these frequencies as well. 2 Meter Band (VHF) 144000 MHz; 70 cm Band (UHF) 430000 MHz; These bands are reserved for licensed amateur radio operators. The most popular way of communicating at sea is via a marine VHF (Very High Frequency) set. The current UK national fireground radio channel plan was agreed with the Home Office in 1993 based on the use of analogue radios and frequency bands of 25 kHz. Best handheld VHF on test. UK Tel: +44 01329 246700. There are VHF Shared frequencies and also UHF (Channel 38) Shared frequencies. M & VF. The latest GDP numbers c. kat lazo gastric cancer update 2022 425 MHz), M=80 (TX 157625 MHz. A radio wave with frequency f has wavelength c / f. Air UHF: Air VHF: Amateur Repeaters: Ambulance: CB Radio: CoastGuard Rescue: Commercial Radio Last updated: 16 March 2023. com lists local police scanner frequencies in the United States and many other countries. It supports a variety of digital and analogue modes, delivering massive functionality in your hand on the move. 33 kHz voice channel spacing. 650 MHz) - Bridge to Bridge navigation frequency300 MHz), Channel 10 (156. Very High Frequency Omnidirectional Range Station ( VOR) [1] is a type of short-range radio navigation system for aircraft, enabling aircraft with a receiving unit to determine its position and stay on course by receiving radio signals transmitted by a network of fixed ground radio beacons. 0 MHz VHF Low Band 685 MHz VHF Mid Band 13805 MHz VHF High Band 1650 MHz VHF Band III 1740 MHz UHF1 Band 4200 MHz The following uses Google Maps to show the locations of 2m / 144MHz VHF Beacons in the UK:- loading. 1084-5 Annex 4, summarized here. These are combined transmitter/receivers that operate on allocated frequencies known as ‘channels’. For bands named Air, see Air (disambiguation) § Artists. Primary users have licensed broadcasters in television and radio or commercial communication services that provide cell phone service and two-way radios. 33Khz channel spacing. VHF, UHF and Microwave Beacons. The UK Repeaters site by RSGB ETCC gives detailed information about repeaters in the UK. UK 50MHz Band Plan. 650MHz - which strictly speaking is semi-duplex. the start of this feed. In a general sense, UHF’s shorter radio waves make it best-suited for wireless. 5375MHz (motorsport UK 3 & 4) in the frequency modulation spectrum - FM and are available to events with a motorsport UK permit, for safety purposes, throughout Great Britain. aj applegate feet [1] PMR446 is typically used for small-site, same-building and line of sight outdoor activities. Postby paulears» 15 May 2022, 17:10. For bands named Air, see Air (disambiguation) § Artists. Region 1 exceptions and JS8Call frequencies FT8 Frequencies on HF VHF UHF Ham Radio Bands Simone Mannini IW5EDI-Oct 7, 2019. The most comprehensive and up to date UK radio scanner frequency database covering WTR, PMR, Airband, Airports, Air Control, Mil Airband / Airfields, Ham and more. Equipment used ranges from consumer-grade to. Ofcom UK Frequency Allocation (UKFAT) Page. Here for discussion purposes is a draft US frequency list following your concept which I am going to post on some US prepper sites with link-back to here to see if I can generate any interest. High-band VHF: 169-216 MHz. Find Radio Scanner Frequencies for Somerset UK, Lat Long 5188998 Range 10 Miles at Radioreference UK, use your web browser to search the WTR and download, print and map frequencies The rightmost column labled Common indicates the channels which are the same in all three band plans. Taxi UK Radio Scanner Frequencies. See ITU Radio Regulation Appendix 18 and ITU-R M. However this can differ case by case. 425 MHz) Channel "80" (157625) Channels M and M2 are UK channels and should only be used in UK territorial waters. Channels go in a sequencing number from channel 1 to 28 and then 60 to 88, between 28 and 60 are private channels. VI t Very high frequency ( VHF) is the ITU designation [1] for the range of radio frequency electromagnetic waves ( radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter. High-frequency trading -- sometimes also called "algorithmic trading," "algo trading" and "black box trading" -- refers to an extremely active trading strategy in which investors b. But not every two-way radio has to be licensed; some can operate on specific, licence-free (PMR446) frequencies. UK Business VHF Radios use frequencies from 136 - 174MHz. 725: BM: ACARS SITA Base: Base Frequency: Telm: Data: 131475: DataPlus (Air Canada) En Route During the 10 minute pass the frequency will move lower shifting a total of 7 kHz down to 145.