The KWM-2 was IIRC 1500 Hz -- and my FPM-300 was 1750. *That* was too much, and inspired a relay-switched front -panel RIT control. The design reason was sound (no pun intended, for once) enough; the transmit IF filter had to suppress harmonics of the keyed tone for a pure signal. This is something that might help some digital-soundcard ops.
Also once upon a time -- so I recall -- some legal [half] wit at the FCC decreed that tone-generated CW on the KWM-2 was "A2" and NOT lawful in the CW segments. Today it's "images sent in data mode are SSTV." Give 'em an inch and they think they're a ruler. Cortland KA5S --------------------------------------------------------- From: "Ron D'Eau Claire" <[email protected]> I'm just happy that the 1 kHz sidetone that was almost "standard" for many years is no longer popular. All of my radio licensing CW tests at the FCC offices used 1 kHz. That made my brain ache, ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
