[Elecraft] KX1 Question

[Ron D'Eau Claire]

Don KB3DRW asked:

Have all the bugs (if there were any) been worked out of the Kx1 80-20 meter

radio upgrades.  I was thinking of building another Kx1, this one with 80 
meters, but wondered if add the testing had been completed.

Did anyone use a 80/40/30/20 for field day?  How did it work?

What is the output on each band with 13.8vdc input?

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Hi, Don:

There have been no issues regarding the KXB3080 for some time now. There
were a couple of issues that became clear only after the test group had
wrung out their units and a much larger number of people started building
the kits. Those were quickly corrected in typical Elecraft manner. 

To answer your output power question, the specification is 3 to 4 watts at
12 VDC. With a 13.8 VDC supply, my KX1 w/ KXB3080 delivers:

80 Meters: 3.8 Watts
40 Meters: 3.3 Watts
30 Meters: 4.2 Watts
20 Meters: 3.6 Watts

So that's a range of just 1 dB from the highest band output (30 meters) to
the lowest band output (40 meters). 

I was working Saturday and Sunday. Field Day is one contest I try to
participate in, even if in a small way, but not for me and my Elecraft gear
this year, sigh! 

Ron AC7AC