Re: [Elecraft] K3 TX power overshoot

2019-01-11 Thread Eric Norris
I see TX power overshoot when there is too much audio drive. The 5th bar should be flashing not solid on the ALC meter. Also, do a TX GAIN calibration procedure from the K3 Utility. My KPA500 has endured some massive peak power overshoots without destruction (1200w) before I readjusted things.

Re: [Elecraft] K3 TX power overshoot

2019-01-11 Thread Bob McGraw K4TAX
I occasionally see a wee bit of overshoot as seen on my KPA500. I'm driving it from my K3S at about 20 watts for about 400 watts out on SSB.  Occasionally I'll see a 450 or 500 watt indication on the LED bargraph.  The KPA500 doesn't seem to mind. If I set the drive power to 20 watts CW mode,

[Elecraft] K3 TX power overshoot

2019-01-11 Thread John Simmons
I have a 6xxx K3 (not S). The output of the radio is monitored by an LP100A wattmeter set to peak reading. The K3 drives an AL80B. I have just done a TX power calibration. With the K3 power output set to 60 watts and running SSB I will see about 64 watts output but occasionally see 74 watts pea