Frequencies

Primary VHF Networks

North America: 144.39 MHz (VoiceAlert Voice Alert 100.0 Hz CTCSS, mobiles only please!) Europe: 144.800 MHz Australia: 145.175 MHz (VoiceAlert Voice Alert 91.5 Hz CTCSS) New Zealand: 144.575 MHz Argentina: 144.930 MHz Japan: 144.640 MHz

Alternative Input VHF Networks

For low-powered trackers only:

Many areas: 144.99 MHz Western Washington State: 144.35 MHz

UHF Networks

Australia (VK): 439.100 MHz 1200 baud (in selected areas) Netherlands (PA): 430.5125 MHz 1200 baud Puget Sound, WA: 440.875 MHz 1200/9600 baud Kansas / Missouri: 446.175 MHz 1200 baud (primary, with infrastructure) Kansas / Missouri: 441.175 MHz 1200 baud (secondary / special event, no infrastructure) US Nationwide Proposed: 445.925 ([proposed by Bob WB4APR]) New Zealand (ZL): 432.575 MHz 1200 baud allocated but little usage

HF Frequencies

Dial frequencies based on default tones used in popular packet devices.

• • 30 meters, 300 baud packet, Worldwide**

	USB Dial Frequency	Mark Frequency	LSB Dial Frequency
KAM, MFJ, TinyTrak	10.147.600 MHz	10.149.200 MHz	10.151.000 MHz
AEA	10.147.100 MHz	10.149.200 MHz	10.151.500 MHz"

Satellites

Satellite	Uplink Frequency	Downlink Frequency	Alias	Mode	Status
ISS	145.990 MHz	145.800 MHz	ARISS	1200 baud AFSK packet	Active
PCSAT-2	145.825 MHz	435.275 MHz	ARISS or WIDE2-2	1200 baud AFSK packet	Active
PCSAT-1 (NO-44)	145.825 MHz	145.825 MHz	ARISS	1200 baud AFSK packet	Daylight Ops Only!
AO-51 (Echo)	145.860 MHz	435.150 MHz	PACB-1	9600 baud FSK packet	Active (see schedule)

AO-51 schedule

Satellites are subject to doppler shift and you should adjust your uplink/downlink accordingly. Doppler will make the frequency on a LEO shift as follows:

2 meters +/- 3kHz (FM capture effect negates the need to adjust on this band)

70 cm +/- 10kHz

13 cm + /- 50kHz