a lot of phone QRM from Canada on 7.070, IARU and ARRL Band Plans do not jive
with each other to well.
I would choose a sound card with the lowest THD% or Total Harmonic Distortion
if you can find the specs. Also choose a sound card with a high SNR (signal to
noise ratio) and you should be pretty happy with the card, Then make sure to
use some extra ferrite on the audio lines to help keep any ex
that is strange all my RTTY contacts are in USB using AFSK and that is at least
1800 contacts in RTTY every now and then I might run into someone inverted but,
99% are in USB
I could not tell what frequency that was on exactly or the time it was , could
it have been my mt63 signals ?
