[Elecraft] KPA3 100 Watt Amp

[Jim Wilson]

I've just installed the KPA3 in my K3. The installation went superb and the Transmitter Calibration Gain worked fine. However, I'm able to get 100 watts out on 20 meter through 6 meter but 30, 40, 80, and 160 all come up short. Each measures about 80 watts, via the K3 internal measure under the "Tune" setting into a 50 ohm dummy load. I don't have an external wattmeter to double check. Is this normal operation? If not, any thoughts?

I have to say that I'm simply delighted with my K3. Originally purchased in 2008, I've been able to confirm 135 countries at the 5/10 watt level into verticals. Upgraded over those three years with ATU, Roofing Filters, P3, and now the KPA3 --- not to mention several firmware updates. This rig can't be beat!

Thanks for any insight you can offer.

Jim Wilson, K5ND
http://www.k5nd.net