[Elecraft] KXPA100 SN 707 Total Frustration with this Amp

[rldillon at aol.com]

The high SWR happens even when the AL80b or Palstar tuner is not connected. In other words when coax from the kpxa100 goes direct to the K4KIO Hexx beam with nothing in between to confuse the amp except a barrel connector.

Yes you can drive a larger amp with the kx3 and KXPA100. It is covered on page 19 of the manual in paragraph titled Keying an External Amplifier. 


-----Original Message-----
From: Dr. William J. Schmidt, II <bill at wjschmidt.com>
To: rldillon <rldillon at aol.com>; elecraft <elecraft at mailman.qth.net>; KX3 <KX3 at yahoogroups.com>
Sent: Sun, Mar 9, 2014 8:49 pm
Subject: RE: [Elecraft] KXPA100 SN 707 Total Frustration with this Amp


Am I reading this correctly?  You are driving an AL80B with the KXPA100
being driven by the KX3?  That's quite imaginative if that's correct.  The
SWR fault is coming from the AL80B input circuit not your antenna (the KXPA
can't see the SWR on the other side of the AL80B).  probably something bad
in the input circuit of the AL80B causing the high SWR...


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ
 
Owner - Operator
Big Signal Ranch
Staunton, Illinois
 
email:  bill at wjschmidt.com