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 <[email protected]> To: rldillon <[email protected]>; elecraft <[email protected]>; KX3 <[email protected]> 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: [email protected] ______________________________________________________________ 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

