[Elecraft] k2 clicking

[Ron D'Eau Claire]

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: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John Cooper
Sent: Thursday, July 07, 2011 4:10 PM
To: don at w3fpr.com; 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-----