Jim, That caveat is not required. The K2 will detect the KPA100 when it is powered on. If there is no power to the KPA100 you will see the message "NO PA POWER". But if power is later applied to the KPA100, it will come on-line and provide full power output. This switching is automatic, and available for those operating with the KPA100 mounted either on the base K2 or externally.
In other words, the K2 with the KPA100 is designed so if you operate the KPA100 with a power supply running on the AC mains, and power the base K2 from a battery, should the mains power go out during a QSO, the KPA100 will drop out and the base K2 will still be powered from the battery, enabling the QSO to continue even with the lower power out of the base K2. There is a test sequence in the KPA100 manual to verify this power switching mechanism. 73, Don W3FPR On 3/28/2011 6:07 PM, Jim Wiley wrote: > The only caveat is that when running high power you have to make sure > that power is applied to both the K2 and the KPA100 before turning the > rig on with the front panel switch - otherwise, the K2 will not detect > the presence of the amplifier, and will not switch from one to the other > as needed. > ______________________________________________________________ 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

