On 19/08/2016 15:15, Don Wilhelm wrote:
Stewart,
It sounds like you have the XV144 JP7 jumpered and not JP8 - otherwise
you would not be able to power the XV144 on/off with the front panel
switch.
With the jumper on JP8 and none on JP7, the XV144 will power itself on
when you select the 144MHz band (actually the K3 TRN address that
matches the address set into the the XV144 DIP switches).
This is the mode that it operates in.
In order for this selection to happen, you must have 12 volts at the
power jack of the XV144 whenever the K3 is powered on.
If you are turning the XV144 off at its power supply, then I suspect
it will load the K3 AUX signal and cause "strange behavior" in the K3.
OK - I have the oven heater on when not selected, and turn the XV144 PSU
off if I want to turn the oven off because I am unlikely to use 2M for a
while. From the sound of it I need to keep it powered up whenever the K3
is on. A minor irritation since they use separate supplies/
73
Stewart/G3YSX
The solution is to leave power on the XV144 - no debugging necessary.
73,
Don W3FPR
On 8/19/2016 9:46 AM, Stewart Bryant wrote:
I have a K3 connected to an XV144 in the preferred configuration
shown in the manual with the AUX port used for band switching.
Occasionally I find that with the XV144 powered down the K3 hangs
complaining that the KPA500 needs to be turned on. I can cure this by
powering on the XV144 or by disconnecting the Aux lead from the XV144.
Is this a fault on one of my component's (K3, cable or XV144), a bug
or a feature.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
