The ATS20 is not a radio. It is a hardware shell waiting for a soul. The transforms a mediocre Chinese portable into a spectrum analyzer, a RTTY terminal, a stealth receiver, and an IF tap.
for SSB (Single Sideband), which is essential for clearly receiving ham radio operators. Visual Overhaul:
Offers precise tuning steps as low as 10Hz for ham radio operations, whereas stock firmware often starts at 25Hz.