[Elecraft] KPA-100 with K2 ATU

[Lyle Johnson]

Hello Tim!

> Now I'm getting confused again :-) With the KPA100 INSTALLED in the K2
> and the KAT2 removed, my understanding is that it will tune and transmit
> at QRP levels (under 5 watts) as well as the 100 watt level...

With the KPA100 installed, the K2/100 has a TUNE power level of 20 watts.
It has an OPERATING power range from 1 to 100 watts.  Of course, once you
have activated TUNE, you can turn the power control up or down to change it,
but the next time you activate TUINE it will again be at 20 watts.

If you remove power from the KPA100 power connector (the Anderson power pole
connector) and instead apply power to the ORIGINAL K2 power connector, then
the KPA100 RF amplifer section is not powered and the K2/100 will operate at
the K2's original, QRP TUNE and OPERATING power settings.  In this mode, the
K2/100 still uses the SO-239 RF connector.

73,

Lyle KK7P