Perhaps the obvious, but after a few days in the "automatic" unattended sub bands, where I anticipated all kinds of nasty QRM from Pactor stations, I have to report that the most frequent QRM , in order, is..
1. ALE (Standard) soundings 2. CW NTS QSOs (usually two stations sent by an NCS, off net frequency, to pick up traffic. No "QRL ? " 3. Whistlers 4. Pactor Stations So, As Skip and Dave have been pointing out, life in the automatic sub-bands would be quite easy if only they would use a busy detect. Andy K3UK
