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Thanks Hans, Great kit with excellent support. I look forward to the firmware updates in due course, appreciating that they take time to develop and test. As an aside I do wonder if you considered

Hi, what is the PTT +5V line voltage when active? Does the red LED lights up bright? I had to lower the value of the R210 in the QMX+ (just added 100R in parallel) to stabilize the PA RX/TX

Hello Trevor 160m image rejection is a known issue and I will fix it as soon as I have done the SSB firmware update. It's not a hardware issue, it's firmware. If all the other bands are correct then

Hello, My newly built QMX+ is showing poor image rejection in the test suite, but only when for 160m, other bands look OK. The image at 160m indicated -3.7, with both wanted and image around

Hi Jim Please check *Firmware version history* from https://www.qrp-labs.com/qmx.html you have to check yourself 73 DE muhsin TA1MHS

Hi, I have the QMX+ connected to the RF input of PA and the PA RF output is connected to dummy load. QMX+ & PA is powered up. When QMX+ goes into transmit severe oscillations occur at junction of

James, there are more than one possible reason for the shown values (e.g. T507, LPF section, cables, dummy load). It would be helpful to have some additional values. Could you show for each band: for

Thank you for the verification, Hans. I will look forward to the calibration function when time allows. 73 Trevor G6PSZ

Hi Michael, that’s great that it is alive. ?Congratulations on that part. look at all of your soldered joints under magnification and a bright light. ?Look especially at T501, the output

Hi Don, mni tnx for your answer. Yes I also think the driver SN74ACT08D is under suspicion and I will replace it 73, Guido HB9BQB

Hi Greg, mni tnx for you answer. Yes I also think the driver SN74ACT08D is under suspicion and I will replace it 73, Guido HB9BQB

mine is close, 2,5w on 20m; 1,8w on 17m; My SWR is higher 73 Luis CU2IJ

Yes, the only exeption I remember are the single turn coils in the T507. Eveything else seams to be in .33mm wire. > > > Good luck, Luis CU2IJ

Yes, I just rechecked my dummy load to be sur and, it measures 50.1 Ohms.

Looks that way but if you look at the screenshots, you can see I'm using a 9V supply.

Hi Stan, thanks for your comment. I do have a newer revision with D516 already installed as SMD. KR Dirk

Hello James I have some ideas I wanted to try but I consider them "stretch goals" and so so far out that I don't want to put them on paper (or electronic equivalent) until I am way past much higher

Hello Trevor Marginally low PA voltage is not considered a problem. It's acceptable. There's device to device variation. In the future I will include in the firmware a calibration function that can

Hi Ian, all According to my records for the last 6 months, there has not been a significant slow-down. Remember September isn't over yet. September production was certainly lower than

Number sent. i think your build looks great. From what i saw yesterday i figure you’ll be able to tweak better results than me. Your Bpf should also be squeezable. If you look at mine the windings