Re: [Elecraft] [KX3] Digital TX issues

2015-07-13 Thread Edward R Cole
This may not apply to Gary Hawkins' situation with his KX3, but I have the situation where I get no Tx audio drive to my K3 in digital modes from the soundcard. Turns out that my XP32 computer is not doing a handshake at power-up with my emu-0202. Cure is to cycle the power on the emu0202 to

Re: [Elecraft] [KX3] Digital TX issues

2015-07-13 Thread Don Wilhelm
Gary, Since you get no ALC bars when the fault occurs, the problem is either in your Signalink or the audio input section of the KX3. It could be as simple as an intermittent audio cable connection or a fault in the audio wire. If you have an audio amplifier available (like one of those used wi

Re: [Elecraft] [KX3] Digital TX issues

2015-07-13 Thread Bob McGraw - K4TAX
While your test using a dummy load seem reasonable and correct, it would appear as though you may have an excessive amount of Common Mode current on the feed line, not being seen by the SWR indication in the radio. I suggest a Common Mode choke on and at the output of the radio. Perhaps a fau

[Elecraft] [KX3] Digital TX issues

2015-07-13 Thread Gary Hawkins
Just as background, this digital setup has been working successfully for several weeks and as I mentioned in another post I've recently had over 170 contacts in both JT65/JT9 running 5 or 10W (my KX3 has 3rd third party heatsink). The ALC was appropriately set based on information Don provided