Don: The calibration of R2 is not real critical. It is the pot that delivers the reflected voltage to the microprocessor. There is a way to set it accurately. After properly setting R1 as per the manual:
1. Turn the power off. 2. Measure and record the resistance between ground and Pin 5 of U1 3. Measure and adjust R2 so that the resistance between ground and Pin 4 of U1is the same as the valve measured in Step 2 4. Bingo You are done. 73 Jim Younce K4ZM _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
