Neutron
There is a know problem with the local receiver oscillators producing rf harmonics which swamp the GPS receiver when certain COM frequencies are set. One such know problem frequency is 119.875 (Scottish FIR) but there are many others.
Hey, that is exactly what happened to me last week. Was getting interference on 119.875 (like a discharging capacitor breakthrough every 2 secs), but had GPS lose the signal at the same time. Didn't put 2 and 2 together until you mentioned it ...
So, no problems with the GPS if I don't have 119.875 selected.
Bad area for me seems to be around Drymen/Thornhill/Lake of Menteith.
Anyone else had probs with 119.875 and GPS ?