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Amateur Radio

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Revision as of 22:20, 26 April 2016 by QDP2012 (talk | contribs) (moved data from Amateur Radio/70cm 446 FM Simplex Frequencies to this article)

Amateur radio, a/k/a ham radio.

US/Canadian VHF/UHF Calling Frequencies

Frequency  Type  Alpha Tag  Description  Mode  Tag 
29.60000  BM  10m FM Simplx 10m FM Simplex  FM  Ham 
50.12500  BM  6m SSB Call 6m SSB Calling  USB  Ham 
52.52500  BM  6m FM Call Pri 6m FM Primary Calling  FM  Ham 
52.54000  BM  6m FM Call Sec 6m FM Secondary Calling  FM  Ham 
144.20000  BM  2m SSB Call 2m SSB Calling  USB  Ham 
146.52000  BM  2m FM Call 2m FM Simplex Calling  FM  Ham 
432.10000  BM  70cm SSB Call 70cm SSB Calling  USB  Ham 
446.00000  BM  70cm FM Simplx 70cm FM Simplex Calling  FM  Ham 
1294.50000  BM  23cm FM Call 23cm FM Simplex Calling  FM  Ham 
144.39000  BM  APRS Automatic Packet Reporting System  Telm  Ham 
222.10000  BM  1.25m SSB/CW 1.25m SSB & CW Calling  USB  Ham 
902.10000  BM  33cm SSB CW 33cm SSB/CW Calling  USB  Ham 
1296.10000  BM  23cm SSB/CW 23cm SSB/CW Calling  USB  Ham 
2304.10000  BM  13cm SSB/CW 13cm SSB/CW Simplex Calling  USB  Ham 
2305.20000  BM  13cm FM Simplx 13cm FM Simplex Calling  FM  Ham 
223.50000  BM  1.25m FM 1.25m FM Simplex Calling  FM  Ham 
927.50000  BM  33cm FM Call 33cm FM Simplex Calling  FMN  Ham 
144.41000  BM  US SOTA US Summits On The Air (SOTA)  FM  Ham 
146.58000  BM  N Amer Adventure North American Adventure (Alt to 144.410 & 146.520)  FM  Ham 


  • Note: There is no formally recognized 1.25m 220 FM simplex call frequency. Various sites claim 223.50 or 223.52, while ARRL lists none.

Amateur Radio UHF Simplex Frequencies

Amateur Radio frequencies in US/Canada within the 70 Centimeter (aka 440) band include a segment of frequencies allocated for FM simplex operation. The frequencies range from 445.000 MHz to 447.000 MHz, inclusive, with a commonly observed spacing (or stepping) of 25 kHz. This makes available 81 possible frequencies for two-way FM operation in this allocation. (In areas where a 12.5 kHz spacing is being observed, there are 161 possible frequencies.)

This band (400 MHz UHF) and mode of operation (FM, Simplex) is fairly identical to the popular Family Radio Service (FRS) and General Mobile Radio Service (GMRS) blister pack radios popular in the United States and Canada, and with Australia UHF Citizen's Band (UHF CB) radios, and with Professional Mobile Radio (PMR446) radios in the United Kingdom. In fact, PMR446 overlaps with the 446 MHz Amature Radio band being described here, but use a different set of channelized frequencies. Indeed, equipment intended for any one of these radio services can often be used on the others.


Standard Repeater Offsets

Amateur Radio Standard Repeater Offsets
Band Offset MHz
10 m (29 MHz) - 0.1
6 m (50 MHz) - 0.5, - 1.0
2 m (144 MHz) +0.6, - 0.6
1.25 m (222 MHz) - 1.6
70 cm (440 MHz) +5.0, - 5.0
33 cm (902 MHz) - 25.0, - 12.0
23 cm (1.2 GHz) - 20.0
  • Some repeaters have non-standard offsets. These are often referred to as odd split repeaters.
  • Some areas may use band plans with different offsets.

Links

USA

Canada

Repeater Databases

Related Wiki Articles




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