Hi Don, Here are your latest suggestions and my test results:
If you see the blips, then the relays should be getting voltage to the coils. Since the RANT works on 80 meters, your problem may be in the 160/80 meter bandpass filter rather than the k160XV board itself (it may also be in the VFO range select area too). Check the VFO range select first - just because it is easy. Set the K2 to 1800 kHz and measure the frequency at TP1 (counter probe in TP1 and menu to CAL FCTR) - it should be very close to 6715 kHz, if it is not, then check capacitor C75 for proper value 470 pf (471) and good soldering. **Could not do this as I have a newer firmware that only allows CAL PLL on 40M. Then I checked C75 and it was NOT INSTALLED. So I installed it. Appearantly, the module has never worked b4. Then check the bandpass filter additions C13 and C14 (1200 pf [122]). If these are in place and relay K3 is working properly, you should have good 160 meter receive. **C13 was the wrong value so I installed the right value. Once you have 160 meter receive through the RX ANT jack, then you can move on to transmit. If it still does not work after successfully passing all the above tests, look for the problem in the toroid leads on the K160RX board. ** Checked torroid lead and they are fine. ** ALSO, repeaked the inductors for 80M, they were off a bit, but not bad. I did check for ~200 ohms between pins 1 and 10 of the header and no dice, I am seeing an open. Could the relay be bad?? 73, Mark K2QO That is all I can think of at the moment. Mark S. Adams, P.E. Environment, Health & Safety University at Buffalo 220 Winspear Avenue Buffalo, NY 14215-1034 Tel: 716.829.3707 ext 25 Cell: 716.863.7229 _______________________________________________ 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
