<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body >Greetings, all.<div></div><div><br></div><div>I just had a weird "feature" with my station. I periodically run a 2-way I-gate for testing purposes, and found that APRS-IS was showing mangled copies of my beacon. Turns out the problem was that I was receiving mangled digipeats of my own beacon over RF, and, because the packet checksum didn't match, my station was I-gating the mangled packets immediately after the original "clean" packet was sent to APRS-IS.</div><div><br></div><div>Unfortunately, the mangling digipeaters didn't have tracing turned on, so I don't know who was chewing my packets. </div><div><br></div><div>Should my station protect itself from such behavior by not digipeating or I-gating any traffic whose original sender's callsign-SSID matches my station's callsign-SSID?</div><div><br></div><div>Andrew, KA2DDO </div></body></html>