Jeff,
Your XV144 may be one of those that are susceptible to a false overload
indication.
It should not be possible to create an overload situation with 1 mW of
drive, although it may be possible to create an overload indication if
the XV144 is in receive and it senses an RF input.
First check the jumper on the front panel board near the firmware IC.
The jumper block should either be off or plugged onto only 1 pin.
Most likely, it is a false overload indication caused by noise pickup on
the front panel COR circuit.
Remove the front panel metalwork (the board can stay connected to the RF
board) and find Q7.
Solder a 0.1uF capacitor between the collector and emitter of Q7. That
bypasses the noise and prevents a false indication.
73,
Don W3FPR
On 12/18/2014 2:12 PM, Jeff Uchitjil wrote:
I just completed my XV144 and everything seems to work with it it, except it
seems to randomly trip a relay in it for a split second. Like it is trying to
transmit. Occasionally this will result in the overload flashing lights and I
have to turn everything off and reset it. The meter on my K2 briefly flashes to
full scale when this happens. I have it hooked up with the KX60XV and KIO.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
