[Elecraft] K3 #281 Perceived Output Issue

[Jerry Moore]

Because there's a specific calibration process during build that's performed
on the 10w system prior to installing the 100w amp.

With the 100w amp in place and the jumpers configured the data is
speculative as to which circuits are in operation. 

The key to troubleshooting is to isolate. Don't assume data. Measure. You
stated that your wattmeter is "known good", how/how recently did you get the
calibration checked? Verify switch settings for the ranges?
I usually trip on the simple things that, if known, would make me appear
simple minded...but we won't discuss my past lumberings... :)

Since the PA is trivial to remove is there any good reason to not do so? 

Logical assumptions based on the data so far:
1. The 100w amp is working by netting greater than 10w
2. We don't know the status of the 10w amp but since it drives the 100w amp
we're getting something out of it.
3. We don't know how much power the 10w amp is outputting at full drive.
4. The rig was most likely OP assembled or an add on installed --- you may
clarify the case here.
5. Wiring is suspect - Personally I had challenges here when installing the
ATU and some other things.

When an assembled system is new, always suspect connections/configuration.


Jerry Moore
CDXA, INDEXA, SKCC, Fists
AE4PB, K3S - S.N. 010324
http://www.qrz.com/db/AE4PB
An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and
Patriotic.