Some of those connectors can be a bit finicky, wanting to be snugged up
a little more than common.
Ask me how I know... wiggle, snug, wiggle snug.
Rick NHC
On 3/15/2015 4:04 PM, Jack Brindle wrote:
Mike;
It is definitely a cable problem. If the asterisk is not being displayed on
key-down, then the
amplifier is not going to go into transmit. recheck the cables all the way from
the K3 to the KPA
to see what came undone. Find and fix that and the KPA will come back to life.
You might want to ohm out the AUX cable going to the KPA to make sure
everything is OK,
also, look for bent pins. The PTT signal is on pin 10 of the AUX cable, as
described on page 18
of the KPA500 Operating manual.
Let us know what you find!
73,
- Jack B, W6FB
On Mar 15, 2015, at 3:46 PM, mike <ai...@comcast.net> wrote:
No, the asterisk on the KPA is missing. Nothing appears on the left of the
KPA LCD. I understand that to mean the KPA is not receiving a valid PA KEY
signal. I am using Elecrfat supplied AUX cables from the K3 to the KAT500
and another one from the KAT500 to the KPA.
I did recently change my antennas to the KAT500, removing the one that I had
going to terminal 3. So in case there was a problem with the KAT500, I just
tested going from the KPA RF output directly to an antenna (removing the
KAT500 from the circuit.) I also changed the AUX cable to go from the K3
directly to the KPA instead of going from the K3 to the KAT500 to the KPA as
it is normally wired here. No change noted. 73 ..mike AI6II
--
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