Maybe sometimes there is a nuance between agc and avc from the tube aka valve days. Its rarely as easy as it sounds. In a modern receiver like the ubitx, gain is minimized until after the xtal filter. Then there is a opportunity to provide gain control using a complex circuit, or merely forgo it completely and let the operator use the volume control. It works decently. The bidirectional amplifier makes implementing IF agc a bit more complex, but it could be done. Most ubitx solutions major on implementing agc from the audio stage, whether the actual attenuation occurs at audio or near the front of the receiver. I find that a partial agc helps when tuning across a band. Respecting we have many languages on the planet, the debate among us English speakers whether to call this audio agc or avc seems one of style or dialect. Maybe like elevator or lift. Enjoy tickling ions with your silicon or thermions.
Curt wb8yyy?
