开云体育

I've been catching up on my YouTube videos and just published a September POTA activation using my QMX and a modified PAC-12 antenna. I also used a KN4YB bug, which was a little scratchy at first. Not

Ronan, The mod addresses a problem that is exhibited by Rev 2 boards only. So far, Rev 1 and QDX appear to escape the problem. JZ

Very informative post, Bev. Thanks. Just for clarity, does this mod only apply to the Rev 2 PCB? I suspect it does but I thought I'd double check as I have a Rev 1 rig here. Cheers, Ronan MM0IVR

Jindra, /g/QRPLabs/message/113858?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3ACreated%2C%2C%23vara%2C20%2C2%2C0%2C102685272 Note the QMX is presently using a completely different system to the

Bev, Thanks for posting the photos and sharing your experience. Hopefully you will have made things much easier for others. Wishing you New Year's 72/73 and much success with your QMX. JZ KJ4A

Hello, is there a known setup for RTTY using fldigi and VARA setup? I have had success with JS8Call, although TX signal required unusually high level setting (around -1? to -2 dB, while with TS-590S

Hello all a happy 2024 to all fo you after reading the assembly manual in holidays I'd soldering the QMX in a few days followed all instructions carefully. after inspection I'd power up QMX with 7V

JZ, you are so right but I feel so embarrased. You will understand when you see the picture. This is the whole picture. Q508 is to be found "north of" the unlucky IC402 band switch (here already

Hans, thanks! I will remember that. JZ

Hi JZ An important note about this... You are right that there's a setting to keep the PA modulator high during RX. However: when the diagnostics screen is open, the PA modulator voltage is always

Todd, before you pull Q507, look carefully at everything that connects to its gate. A short to ground or near-ground at that point can also corrupt the measured resistance at R507 and cause the

I've been following this thread and added the diode. I thought I would include the image of what I did, and sounds like the same placement. 73 and Happy New Year! Chris

Todd, Since C507 sits right on the 12V supply, don't expect to see a high impedance there. R507 is a different matter. A resistance of 500 ohms there indicates that Q507, the AOD403, has been

Thank you for the pointers, John! I found the setting, and tried toggling it. There was no change in the diagnostic behavior (still showing 10.v on receive or transmit). I started examining the

Hi Y'all, I have an issue with my 13 month old QDX. It just recently started doing it without me knowingly causing it. It is showing a bunch of vertical lines, 62.5 hz apart on the waterfall. There

Bev, post a picture of the diode mod. It will be useful to all. JZ

SOLVED I replaced the smoked CBT3253 by an FST3253 from my home stock, everything works. Then I was looking for the "safety diode" installation mentioned here:

OK4RM, I don't have a way to make/send you an image at the moment. My suggestion is to take an ohmmeter set to a low range and ground one lead. Probe the inductor with the other lead. One terminal

Hello Hans.?In your case, do you hear band noise or do you not have audio at all? 73, Juan LU9CYV

Please, some suggestion? Thank you very much 73, Juan LU9CYV