"If so, the ALC would be before the modulator and compression after it."
I remember modulators but there isn't one in my TS-590. I doubt there is one in any modern rig. In the TS-590 architecture compression is done in DSP (Digital Signal Processing) and ALC is applied way down path at a TX IF amplifier. ALC gets a bad rap but it is alive and well in Kenwood rigs. It works without introducing signal distortion or harmonics. Having said that, I do not use external ALC with my KPA500. Andy, k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com