On 9/4/07, Don Wilhelm <[EMAIL PROTECTED]> wrote: > If you have little or no RF output
Exactly, this is my problem. Continuing onward. > An added note - measure the RF voltage across your dummy load. I'm not seeing any RF voltage across the dummy load. I am only seeing about 350 mV of DC voltage across the DL1 on key-down. I have just completed the Pre-driver, Driver, and PA signal tracing. Things are very interesting here. Driver voltages are very high, especially the output voltage but the PA Inputs and Detector Input are very low. Pre-Driver Output: 1.841 V (Expected: 0.120 V) Driver Input: 0.355 V (Expected: 0.026 V) Driver Output: 8.04 V (Expected: 1.8 V) PA Input (Q7): 0.030 V (Expected: 0.38 V) PA Input (Q8): 0.002 V (Expected: 0.38 V) RF Detector Input: 0.040 V (Expected: 2.0 V) Does this mean I have a problem between the Driver and PA or do I have a different problem area due the the high output of the Driver? Thanks -- JT Croteau, N1ESE - Manchester, NH _______________________________________________ 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
