Chirp programming with fedora 29
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The new narrowband digital channel numbers 102-161 and 202-261 are interspersed (at 6.25 kHz channel spacing) between the splinter channels. The 25 splinter channels (analog or digital at 12.5 kHz channel spacing). This chart includes the original 6 channels (mostly analog FM at 25 kHz channel spacing). ITU-R M.1174-3 UHF MARINE channels (release date 2015) international standard list of UHF marine frequencies for use on vessels.
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International Standard Channel Frequency List for Maritime Mobile UHF: ITU-R M.1174-3 Marine VHF UHF Channel Frequencies USA-Canada Programming List 2016B MEM New Marine VHF 12.5 kHz Channel Frequencies Interleaved. The narrowband 6.25 kHz marine VHF channels will have channel numbers in the 1000 series. As part of the spectrum efficiency process called narrowbanding, the international maritime VHF band will also be further interleaved with 6.25 kHz spaced channels in the near future. More digital services and digitized voice modes will be applied to these channels. Additionally, new AIS automatic identification system vessel tracking channels have been added, and new AIS services are being expanded in some areas. Channel 16 calling, distress and safety channel remains the same, and the interleaved channels adjacent to it are reserved and not utilized in the interleaving plan, to prevent interference. The use of these channels is in addition to the existing channels, and they do not replace the existing channels. New maritime VHF channels which are interleaved between the existing channels are now available for use by suitably equipped vessels in some areas of the world. These new channels are numbered in the 200 series, and they are spaced at 12.5 kHz intervals from the previous channel frequencies. New Marine VHF Channels 12.5 kHz Interleaved It is very common for passengers on cruise ships to use PMR Personal Mobile Radio or FRS Family Radio Service radios while on board, on shore tours, and in ports. They may come in handy to communicate with common bubble pack radios or other non-marine HT radios that are often encountered around marine environments.
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These include FRS, PMR, FreeNet, MURS, etc. Add a longer whip antenna ( in the $12 range) on them and the VHF distance performance can be quite good for intership or ship-to-shore.Ĭruise ship passengers commonly use FRS or PMR radios to keep in touch with family members on the cruise Additional Walkie Talkie ChannelsĪ few additional walkie talkie channels are provided in the programming list. These days, all crew members can easily afford their own personal radio, and now they never need to be without a backup radio of their own. Such inexpensive radios can easily be acquired online or even in the local radio electronics shops of ports all over the world.
#CHIRP PROGRAMMING WITH FEDORA 29 PLUS#
With the programming list provided here, they have all the channels and communication capability of a marine VHF HT plus a UHF HT. Fortunately, modern VHF-UHF walkie talkie HT handheld transceivers are inexpensive ( in the $25 range) and ubiquitous. Ship crews often use separate UHF-only radios for on board comms.
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UHF capability is a feature that is not often found in lower priced marine VHF HTs. These are sealed to prevent any internal sparks from igniting fuel on board or at port. Larger ships, and especially petroleum industry vessels issue intrinsically safe radios to their crews. Also, there is a need for UHF among some users, especially for operation with cruise ships and industrial operations. But, mariners also like to keep a backup radio on hand for when the main radio goes out or the marine VHF walkie talkie gets lost. The cost of a bonafide Marine VHF radio is not high. All ships and boats should have a proper VHF marine radio and keep it tuned to Channel 16 for normal safety and distress calls. Convenient HT radio programming cable USB to microphone jackĪccidents happen on the water, just like they do on land.