Tom,
Another thought - take a look at the DC voltage in the VFO B alternate
display.
If your voltage is dropping much below 12.5 volts, that might be the
problem.
Should that be the problem, check your power supply output, it should be
13.8 volts or higher - preferably 14.3 volts or more.
All power supply connections should be tight to reduce voltage drop.
Run the power cable directly from the power supply to the K3. If you
use a "Rigrunner" or similar DC distribution device, use it for powering
accessories and not the K3. A fused Rigrunner introduces at least 4
points of contacts, each of which can contribute to voltage drops.
Is this a K3S/100 or a K3S/10? If it is a K3S/100 then the switchover
from low power to the KPA3 occurs above 12 watts. Check that the circuit
breaker on the back of the KPA3 is not in a tripped condition.
If all checks out OK and you still have problems, contact
[email protected] for some additional ideas.
73,
Don W3FPR
On 9/12/2016 8:41 PM, Tom Richardson wrote:
I bought a new K3S two weeks ago, and I am trying to learn how to use
it. I apologize if the answer to this issue is obvious, but it isn't
obvious to me.
I am trying to use the K3S in data mode (JT65 or AFSK). I have the
DATA MD set to DATA A, MIC SEL to LInE In, MODE to DATA, and LINE
input gain to 10. Everything seems to work until I try to increase the
power output beyond 12 watts. At 13 watts and beyond, the power
abruptly drops down to one or two watts.
______________________________________________________________
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]
