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
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