Think I have narrowed the problem down to W10 doing something with the sound card. I looked at the device properties and then all seems normal now. At this point I'm ruling out RFI or at least that's

On more than one occasion, and not limited to all bands, but perhaps only one or two bands, I have found RF is getting into the computer via the USB cable between the radio and computer. Using one of

I'll check those settings, thanks for the tip Bob. John WB5THT K3S, P3, SP3, KPA1500

The weird thing is my K3S, PC and WSJT-X were all happy (aside from some operational issues with the app) and playing together nicely since about mid-December. The fly in the ointment could be a Win10

I had that intermittent TX problem with my K3. I had to power cycle the K3 to reset it to again TX. After a few email exchanges with Elecraft I think these recommended settings fixed it: TX INH

I think it is the computer operating system which likes to go back to its factory set default. The Flex Radio SmartSDR has the same problem and the developers seemed, at least in Windows, to concede

Thank you Bob for the ideas. I just put the K3s into Tune and sure enough I was seeing the usual 20 watts (what I usually use with the amplifier) out on my station monitor so there's not an RF problem

I honestly don’t think I ran the K3 at more than 7 watts, to drive the AMP there is much info on this in the archives about the 12 watt usage, I just don’t remember. Unless 7 watts data usage is a

Jeff, The “Achilles heel “ in the K3 power stages is the 12 watt amplifier which is only conduction cooled. In normal use on SSB/ CW modes it seem to be fine all day at 12 watts out ( 8 watts out

John, This could very likely be an RFI problem, with RF getting into the PTT circuit. I had a similar problem. Try reducing the rf output to A very low value say 1 watt, and see if everything runs

I have lost Audio CODEC audio option in WSJT-X. It was working but no longer in WSJT?Setting/ audio dropdown. How do I restore CODEC for WSJT-X? 73, Jim K7EG

L23 is in the 20/30m low pass filter. The only thing I can imagine could cause it to fail is a very badly mismatched load with just the wrong impedance. It's also possible, of course,

According to the schematic I have, L23 is part of the 20/30 meter output LPF. If it's been overheated I suspect a mismatched load was encountered at some time. Does your problem occur only 30 and/or

Well I was asking anyone if they had a clue about L23, I guess not :-) I will call Elecraft tomorrow… 73 Jeff kb2m

Precisely. Same issue here. The fact that the TX audio "comes back" when WSJT-X is restarted seems to strongly suggest the issue is with WSJT-X. I have the same issue with no transmit audio. This

And the IMD will be awful. Wes N7WS

They are just communicating the general disdain for folks trying to run an auction on and Elecraft group. Set an asking price, and be done with it. This ain't

I remember all of this now. Actually I was running about 7 watts to drive the AMP after I had the PA failure at 100 watts, there were no issues at 7 watts. I was trying to make the point that I was

Running 12 watts on data modes is bad. The low power PA won't withstand that. -de John NI0K Jeffrey griffin wrote on 5/3/2020 12:35 PM:

Agreed hence the ridiculously low bids