Don, Thanks for the tip. I'll take a look at those. I was operating mobile with the KX1 and drove through a pretty strong thunderstorm, I was using a Anttron Hamwhip for 20m on the trunk mount.
I did not build this KX1 or the KXAT1, I bought it from another ham and it was working great until the mobile operations on Monday. I think I have some 5711's in the junkbox. I'll try that tonight. I did a system reset on the KX1 also, but it didn't help. I did work Indy to San Diego last night on 2w and my attic dipole, so the main rig seems to be in good shape. 73 ----- Original Message ----- From: "Don Wilhelm" <[EMAIL PROTECTED]> To: "Brian Murrey" <[EMAIL PROTECTED]>; <[email protected]> Sent: Wednesday, June 21, 2006 7:37 AM Subject: RE: [Elecraft] KX1 Issue > Brian, > > If you have relays clicking and it attempts to tune, then the firmware chip > is likely just fine. > You said it failed after a storm, which gives me cause to believe that the > two diodes in the wattmeter should be replaced. Put new 1N5711s in the D1 > and D2 positions and I would believe the problem will go away. > > Note that these diodes are sitting in the wattmeter section which hangs > directly off the antenna jack, making them most vulnerable to > static/lightning damage. Disconnect your rig from the antenna during a > storm. > > 73, > Don W3FPR > > > > -----Original Message----- > > > > Any experts on KXAT1 debugging? > > > > Yesterday I had the KX1 in the car with the 20m hamstick and for > > about half > > the > > day I was about to work Florida, Mass, Texas...with 2w and the KX1. I was > > using the KXAT1 to tune my hamstick, even though I have the > > hamstick adjusted > > to 1.2 : 1 without the tuner. > > > > BIG storm comes along, I'm not running CW now, I'm driving and > > listening to CW > > and lots of static. So I shut off the rig and keep tooling on > > down the road. > > > > About 20 mins later I pull into Riley Park in Greenfield IN and > > and park so I > > can play radio...except the KXAT1 is saying I am only putting out > > .05 watts, > > then sometimes maybe .09 watts...SWR is like 8:1 now. So I move > > the car...I > > am in the clear...nothing metal near me...same thing. huh. > > > > When I get home I take the rig in to the radio room and attach it > > to the attic > > dipole, that never fails. > > > > I put it in auto tune mode...on 40m...SWR reads 9:1 on the KX1 > > but 1.2:1 on my > > external meter. I take it out of auto tune...do a manual > > tune...KXAT! says SWR > > is 9.9:1 and power out is less than half a watt...on a 14.0v power supply. > > > > So I go through the ATU setting, no error code (showing E00). I yank the > > KXAT1, jumper pins 1 and 3 on J7...which now makes it a KX1 without an > > internal ATU. > > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
