[Elecraft] 160M Dead on my K2

[Don Wilhelm]

Mark,

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.

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.

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.

That is all I can think of at the moment.

73,
Don W3FPR

> -----Original Message-----
>
> Don,
>
> The suggestions did not fix my issue.  All solder joints were redone
> and I checked everything with a magnifier light. Relay K2 works fine. I
> checked it on 80m where the RX is fine.  I checked the bottom of the
> main board and all is well there too.
>
> When I switch bands to and from 160, I can see a small blip on my old
> analog VM from pin 16 to GND. I see a similar blip when I turn off/on
> the RX antenna using pins 3 and GND.
>
> Any further thoughts?
>
> 73,
> Mark K2QO
>
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