Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-21 Thread Don Wilhelm
All, Magnetic Fields in close proximity to the relays in the KX3 will interfere with the relay operation. The aluminum enclosure of the KX3 (KX2 etc.) will not stop a magnetic field. This was a problem with the speaker magnet in some KPA100s because the speaker was positioned right above the

Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-21 Thread Fred Moore
Sorry for the late response.. I had the exact problem several weeks ago. Every time I removed the batteries the problem would be resolved.. The problem was ultimately me being a dumb ass.. I had purchased a nice blue tooth speaker that perfectly sat on top of the KX3, however it kept sliding

Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-19 Thread nate t
Hi all, I opened up the KX3 and pulled the ATU, everything seemed to be in order and the LPF was in the correct position. I put the original batteries back in to keep the testing the same as previously. They were a bit lower than I had previously thought, read 9V (alkaline). I put up a 20m

Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-17 Thread Walter Underwood
25.4:1 SWR is what the KX3 reads for a short or an open, if I remember correctly. Agreed, open it up, make sure everything is tight, include the ribbon cable. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 17, 2017, at 11:20 AM, Don Wilhelm

Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-17 Thread Brian Waterworth
I had a similar problem at Winter Field Day. Between the dummy load and the rig on a 3' patch cord, SWR wouldn't settle to 1.0:1. Cracked the hatch, looked around. Touched nothing inside. Put the KX3 back together, presto, SWR started behaving itself again. The ATU now matches to expected

Re: [Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-17 Thread Don Wilhelm
Nate, Since the problem is intermittent, I would not suspect a problem with an active component. You might want to remove the bottom cover and check to be certain the hardware on the BNC jack is tight and the LPF on the BNC connector is properly positioned. You may have to lift the KXAT3

[Elecraft] KX3 tuner getting stuck at 25.4:1 SWR

2017-04-16 Thread nate t
Hi, I was working with my KX3 earlier today, RX only, using an endfed, while running on batteries, RXing WSPR and PSK31. After running for a bit, the ATU seemed to stop working. Attempting to retune on 40m, it would stick at a 25.4:1 SWR. Tried switching down to 20m and it retuned right