John, that's more evidence that it's the forward and reverse power detection diodes in the KPA100 that failed since when you remove it the power detection function is handled by a separate diode detector in the base K2.
The base K2 doesn't have a full forward/reverse power detection circuit to calculate SWR. It uses a simpler diode detector to only measure the output power at the antenna connector and reports the power assuming a 50 ohm non-reactive load. The detector output tells the K2 when it is producing the power requested by the POWER control. Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Cooper Sent: Thursday, July 07, 2011 4:10 PM To: [email protected]; elecraft Subject: Re: [Elecraft] k2 clicking k2 by itself transmit fine, when hooked just to kat100 without kpa 100 it goes hi current during transmit no matter 2 watts or 15 watts. -----Original Message----- ______________________________________________________________ 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

