Tom talks about the bias control here: https://www.w8ji.com/electronic_bias.htm Bryant, W4UX, wrote about it in QST, May 1974. I used the circuit in my two-meter 8877 amp and my Drake L4B. Wes N7WS

The grids are grounded for RF. Cathode-driven would be a better description. Wes N7WS

I've used an SDR-IQ with SpectraVue software for years with my K3 and K3S. I "connect" multiple logging programs, RTTY and WSJT with LPBridge. (I know the 'IQ is discontinued but they show up from tim

Windows 7 is no longer supported by the developer either but it still works, as does Classic Shell on four of my computers. Wes N7WS

I think you missed my point.

My complete station runs on one 120VAC 20A circuit. Out of the question for me. Wes N7WS

If you buy the Elecraft mod kit I suspect you get "any old electrolytic" capacitor. If by audio people you mean the ones who can tell the sonic differences between regular copper and HCOF copper speak

(sigh) "It is in otherwise perfect condition optically, no marks or scratches."

I have seven of them around here (don't know where the 8th one went). I find them at estate sales and buy them on general principles. Wes N7WS

If I understand correctly, he has the serial-to-USB under control. Use line in and out from the K3 directly into line in and out of the computer sound card (reversed of course). Don't fuss with PTT/CA

He doesn't have a K3S and Malwarebytes doesn't like part of your second link.

Hi Dave, OK agreed, the K3 is innocent. I guess the reaction of loyal Elecraft owners is to play defense until the K3 is exonerated, and then call it a day, but the original question was: "Has anyone

If he actually has a VNA and not a VIA and IF the cable was common in all measurements, then this is the time to leave the dummy load out of it and characterize just the cable. I would be very interes

You may well be correct but the OP did say, "I suspected the cabling so checked and changed all that,"

OK. Well there is one thing you're correct about, there isn't enough information, which is why I asked for more before jumping to a conclusion about the solution. But that's just me being silly.

So you guys are totally ignoring the dummy load comments? Wes N7WS

I'm a bit confused. Is the 5:1 reading on the K3 display? If so, you say you read 5:1 on your VNA, so there seems to be agreement there. But you say the dummy load reads 5:1; is that on the K3? What d

Ok. Never mind.

Unless I'm mistaken---always a good possibility---attachments aren't allowed as is standard in other groups. Is this correct? Also, I don't see a way to upload a photo. I have a plot of Ref Osc drift

I ran a quick warmup test on my K3S with the High Stability Reference. I'm not going to provide the data at the moment until I'm more comfortable with it, but it looks like after a quick overshoot the