====== FREQUENCIES ====== ===== PRIMARY VHF NETWORKS ===== * North America: 144.390 MHz ([[VoiceAlert|Voice Alert]] 100.0 Hz CTCSS, mobiles only please!) * Europe: 144.800 MHz ([[VoiceAlert|Voice Alert]] 136.5 Hz CTCSS) * Russia: 144.800 MHz * Australia: 145.175 MHz ([[VoiceAlert|Voice Alert]] 91.5 Hz CTCSS) * New Zealand: 144.575 MHz * Argentina: 144.930 MHz * Uruguay: 144.930 MHz (145.010 MHz also) * Japan: 144.640 MHz 9600 baud / 144.660MHz 1200 baud * South Africa: 144.800 Mhz ===== Alternative Input VHF Networks ===== For low-powered trackers only: * Many areas: 144.99 MHz * Western Washington State: 144.35 MHz ===== UHF Networks ===== * Europe / Africa (IARU region 1): * Primary 433.800 MHz (heavy ISM interference in many countries) * Secondary 432.500 MHz since 2008 where ISM is too bad on 433.800 (CT08_C5_Rec32) * Australia (VK): 439.100 MHz 1200 baud (in selected areas) * Netherlands (PA): 430.5125 MHz 1200 baud * Puget Sound, WA: 440.800 MHz 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 ([http://www.aprs.net/vm/DOS/UHFFREQ.HTM proposed by Bob WB4APR]) * New Zealand (ZL): 432.575 MHz 1200 baud allocated but little usage ===== 50 MHZ ===== * United States (IARU region 2): * Primary Meteor Scatter: 50.660MHz 9600 baud * Secondary Meteor Scatter: 50.680MHz 1200 baud * Washington, DC: 50.620MHz 1200 baud (shared with PropNet) * Alabama: 50.640MHz 9600 baud ===== 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 | 145.825 MHz | 145.825 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 | 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 : * 2m ±3KHz (FM capture effect negates the need to adjust on this band) * 70cm ±10KHz * 13cm ±50KHz === Also See === * http://en.wikipedia.org/wiki/List_of_APRS_nodes List of APRS nodes