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Next need to do on BN73-202 for 2200/630m (BN)73 Ross Sent from my iPhone 6

Thanks, Hans! These new features are great. My SWR sweeps with a dummy load look a little strange, though. I'm fairly certain the dummy load is fine. Could it be a problem with T507? 73, Mike KK7ER

Ryuji, I tried open and shorted and it did not seem to make any difference so left the primary open. NanoVNA is a little more difficult to get exact Hz measurements easily. Yes, uH 73 Ross Sent from

When I install that pot on the board, I turn it fully CW and then back off a bit. (fully CW, you'll just see black boxes in the display!) Paul

I finished my QMX build today, and all is working well.? Built for 12V with the new PA winding and running on 9v.? Power ranges from 2.4 Watts on 20m to just over 3.5 Watts on 80m with a 9v

Hi Colin! Yup, that's it, thank you for this simple yet perfect suggestion. There is no mention of this being a necessary step in the assembly manual. This probably should be added, having a first

Ryuji, All high band QDX (and QMX) use the 61 mix. 73 Ross Sent from my iPhone 6

Hi John, Well coefficients of 1 down to can be used to test the model’s performance and comparison with the real world. 73 Ross Sent from my iPhone 6

Make sure you have adjusted the pot on the display board fully counter clockwise. -- Colin - K6JTH http://tangokeys.com

Hello! I've finished assembling my new QMX, it only being my second such project after the Morserino-32 morse learning device. Once I plugged the QMX into a variable power supply, I was delighted to

Thanks, I am glad to hear your opinion and your description.? I decided to try the low-temp desoldering alloy rather than the hot air gun for the same reasons.? Much gentler on the board, and

I watched the demo video and it answered this question--entering the menu or power cycling is the intended way to clear the SWR protection TX block. Jonathan

For anyone interested in the Zyyini 70cm LPF module, here’s the VNA scan of the module I just received. As Barb previously indicated , it’s a bit off meaning too low of a cutoff frequency as well

Here is what I do to replace the cpu. ?Keep in mind you need a programmed donor cpu for this. ?I always get very anxious when I use a heat gun with lots of small parts around the target. ?I’ve

That sounds pretty good, textbook DBM mixer.

I built a QDX (Rev 3a) for 9v operation, and got a Bioenno battery to power it in the field. The Bioenno, although nominally 9V, actually puts out 10.5 volts when fully charged. I'm not sure if I

Great.,? I can possibly repair two radios someday.? I won't trash them yet. I would be willing to help out.? Just send me a PM.

Hans, Some very welcome features--thank you! A question and a request: 1. I intentionally tripped the SWR protection--it seems to remain active until I enter the menu or restart the QMX. ?It remains

I might add that the diodes were selected for match and the mixer was properly terminated for both baseband and RF products. JZ

No problem, Ryuji... 1N5711 Schottky diodes and 10-12 dbm LO injection. JZ wrote: