I've recently started looking into APRS, and can easily receive some APRS signals from my station - however, I can't seem to decode them using QTMM or any similar software.
Is this because they're too weak / noisy, or am I doing something else wrong? I presume it's picking up an APRS envelope but failing a checksum or something similar - if there's any way to just get partial packet data I'd be interested in that as well.