John, Let's try that measurement of U3 pins 6 and 7 again, this time with the KAT100 in CAL mode and after pressing TUNE. Those pins should read zero volts during transmit when th epower is set for 11 watts or more, but should go to a higher voltage if the power is less than 10 watts.
If that is not happening, then your wattmeter is not being scaled for both high and low power, and if the SWR is anything other than a true 1:1, the number of LEDs lit on the tuner will increase as the power is increased. 73, Don W3FPR > -----Original Message----- > > Pins 6 and 7 of U3 must go to a low level (to scale the > wattmeter readings) > > when high power is active. > The Logic selection on my DMM shows LO between ground and pins 6 and 7 > of U3 at all times, both high and low power. > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
