Amateur Radio

This article is about Amateur radio, a/k/a ham radio, worldwide, not just US and Canada.

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

Several regional frequency coordinators recognize 223.5000 as the national 1.25m band FM simplex calling frequency. The ARRL does not list it in their band plan.

These are US/Canadian offests. Other regions and countries may have different offsets on some bands.
Some repeaters have non-standard offsets. These are often referred to as odd split repeaters.
Some areas may use band plans with different offsets.