APRS HF Gateways

Most HF Gateways are on the National APRS tracking frequency of 10.151 LSB to gateway HF position reports into their local APRS VHF networks to keep locals informed of activites on the slower 300 baud HF network. The gates should not be used to gateway local VHF traffic out onto HF. The bandwidth of the single 300 baud HF channel is only one one-thosandth or 0.1% of the capacity of the VHF network!

HF PATH: . The ONLY recommended HF path is VIA GATE,WIDE1-1. This makes sure all HF originated packets get to all HF gateways and one (and only-one) hop on VHF. . This keeps all QRM generated by these HF-Gates in the local area of all digis where any QRM problems can be easily solved. See the original HF.TXT.

USING ECHO: . Using a DIGIpeating path VIA ECHO on HF makes no sense. . It doubles the QRM, halves the channel throughput and any digipeated packets all collide with each other. . There is no need for digipeating on HF! . That is what the IONOSPHERE is for!"

The image below was the javAPRS map of all HF gates in 1998.

For a current map use this FINDU LINK for all live HF Gates presently on the air. (I count 123 on 6 Feb 2007)