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Looks ok to me. Sorry, I can't help much more. Is the waterfall display showing anything? Maybe time to start checking the receive signal path back from the antenna socket. Roger

No. But what do you have the audio devices set as, in WSJT-X? Should be something like QDX-input, QDX-output. (Use F2 to go to settings, then the Audio tab). Roger

But would that explain why the QDX is not hearing anything? I do have the output and input devices set in my audio settings to 100% Wayne

Hi All, My QMX had the short between Q103/Q104 which was discovered before powering it up. The AOD403 was replaced as the original one fractured with modest pressure applied with the heatgun. The

From page 10 of the manual: LED flashes 2 times in quick succession, repeating every 1 second: the PC host software application is sending audio to QDX, and QDX is detecting and measuring the

OK...now I am getting two flashes on the LED. I am still not getting any audio in or out, however. Wayne

Thanks for the reply. I did forget to mention my power slider is set to max. The problem I am having is the QDX has no audio in or out. Also, I just noticed this error as I continued to

Do you have the power slider in WSJT-X set to maximum? It needs to be at max for the QDX to work. Roger 8P6RX

I submitted a previous topic regarding the audio migration settings. That may not be the problem. I finished my QDX build and am now trying to get it to operate. It comes on just fine and I updated

Lex, A relatively simple version of CAT and Audio interface bundled in one: https://antrak.org.tr/blog/usb-vox-1-00-usb-sound-card-vox-combo/ 73 Barb WB2CBA

I finished my QDX build. After hooking up to an antenna, I am finding my QDX is not receiving nor transmitting. It seems i may have a sound card problem. I checked the audio devices and I beleive I am

Hi Paul "Transmit enabled" means that you can transmit. It does not mean you ARE transmitting. To transmit you press the T key. 73 Hans

Hello all. Is there a way to simplify the OCXO adjustment if a thermometer (having a miniature probe) is available? Is there a way to simplify the OCXO adjustment if a drift-free reference receiver

Hi Razvan Thanks for your input - I meant only to rig up temporary linear supplies on my bench to check through the main-board, not as a permanent change The plan is : * Remove both SMPS boards *

Roger, I've been through the connections with a fine tooth comb, but no harm in doing it again., but it would be nice to know if "transmit enabled" should be permanently showing, as in my case,

Thanks Axel And I agree on all points! It IS a very fine thing :-) 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl wrote:

*Important note* : I know Hans is a very busy man doing great stuff for us, but the idea below came to mind this morning and had to write it down. Not just owning QRP-Labs rigs?I have made my fair

Short form: - QMX ordered - waited ( waited, waited, waited patiently) - built, => firmware installed, => turned on, => running. Once again confirmed, the kits from QRPlabs are great. To fit so much

Like you posted. Thinking a bit more the things involved in Rx but not Tx are the band pass filter components L401 and it's associated capacitors and the trifilar transformer T401. The sweeps in the