On Tue, Feb 2, 2021 at 06:23 AM, Bob M. wrote: Switching the oscillator on and off or changing its frequency by more than a few kHz takes some amount of time. This might interfere with the full

No- I am not confused, nor confidential was not lost as I know it was a mass emailing. I've never been a customer of yours and NOW will never be in all probablility.. An appology is in order

Peter: Shouldn't you have used TRS jacks for the power connections? Just kidding -- I couldn't resist! Steve N9SZ

Nice project Peter! I refer to NFPA 79 for design questions about mains power. It is written for industrial machinery, but if you sift through it you can find guidance: select wire sizes based on

Switching the oscillator on and off or changing its frequency by more than a few kHz takes some amount of time. This might interfere with the full break-in operating mode and may not be the ideal

Stephen, http://www.qrp-labs.com/images/qcxmini/manual_1_05.pdf See section 4.16, Test Equipment, and section 5.5 RF Power output check. These explain how to measure RF power with the SWEET internal

Thanks everyone for coming back with such helpful information. As soon as I saw your post, Mont, the penny dropped. Your description fits the symptoms I'm seeing. Sure enough, in effect I have a

Just to make it clear...

Hi Jim, That's correct. In separating VFO A and B up to 750Hz apart, I hear the tone pitch appear (say from a low tone to a high tone) several times across that frequency span. I'm not sure what that

Gonna sound daft, but i wonder if it would make it easier to replace these lcd's if the Qrplabs board the LCD sits on did not have the full pads on the LCD/ qrplabs printed side, but just the through

I would think you need to sort this problem out first, whatever you have done here is causing all the problems. Why should the GPS led’s light up with the front panel switch off? Why only when the

Alan , If you are offended that interfered, i should feel sorry.

Why does this not worry you? It seems something is seriously wrong to me. Get the U3S working on its own. Then get the LPFs setup. 73 Alan G4ZFQ

There are actually several tones in Gregg's recording. There is one tone there when the recording starts, a second tone starts at about 4 seconds in, a third tone starts at about 12 seconds in, and I

Hi all I have not been ignoring this thread but I am very busy at the moment... as soon as I can get things under control, I will come back to this issue and do some investigation here. As far as I

On Tue, Feb 2, 2021 at 07:35 AM, Jan Brink wrote: pa4j at zeelandnet.nlGeen probleem Jan, ik stuur je zometeen een email. Marc PA1DMG.

Hallo Brad, check that all the welds have been done well, and that there is no short in the welds in the U3S pcb and ulpf relay group nearby, check the voltage cables well if they have been welded

Even without anyting plugged in. Power supply works fine with QCX classic version.

Hi Marc, Yes please, I'm stuck with this. Please e-mail me pa4j at zeelandnet.nl , anytime this weekend. On-line meeting in Dutch ? Have limited test equipment only DVM. Bedankt 73 Jan PA4J

Sure no problem, please find this attached. The files come with no warranty. I've tested them but feel free to adjust if needed. Also, for the front and rear protections, you'll have to source M8x10mm