I am going on a W6 trip in two weeks and I plan to take my KX3 with me. Apart from having conflicting reports on whether I need to power the KX3 on at the airport check or not (read take the AA batteries) I now have a huge dilema about the roofing filter upgrade. I do not have one and I am not sure if I really need one.
All the post forums say that it will protect you from strong close signals like in a contest but is there a benefit for SOTA operations? The general answer is no, because we are using simple antennas. BUT…
… how about 40M? It is crowded 24/7, would it help?
… how about local QRM from commercial equipment on hilltops?
Is there anyone who did the upgrade?
I am already about to buy the internal tuner so I am considering if another investment is worth.