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Most all recent USB-C power banks support PD, so it is likely to work. I would get a smaller/lighter one.? I have two small 10,000mAh Ankers, and each is good for several hours of QMX operation.

Just retried a change of tcxo frequency down by 6 Hz. As before it did not work...audio connectivity was lost and had to do a master reset to get it back. Very annoying as have to customise? my rig

I finished assembling my QMX+ (including a battery mod) and finally got the chance to test it.? In the diagnostics everything appears to check out, until I press P.? At that point the SMPS bias

Fat fingers did it again… Accidently turned on the Two Tone Input. ?Changing to Ext Mic fixed my problem! Sorry for wasting a little bandwidth…. See you QMX SSB! Mike

Hi Bill, No not the mic. The QMX+ is transmitting the tone to a nearby receiver. ?Not a feedback issue. ?I cannot hear any voice at all. Mike

Ah yes, thanks Pierre. Very enlightening. [email protected]> wrote:

Mike, When you press PTT, You hear a squeal *FROM THE MIC*??? And yet you're getting good transmissions?? Something about that doesn't make sense to me. Can you explain the issue in

Hi All, Upon PPT on the mic sends out a high pitch tone(squealing like a pig in the midwest!)…I am getting good SSB voice transmissions on both my high and low band QMXs’. ?So pretty sure the mic

I don't think I can, there's no room for images in this site. Here are the images, in case someone can coerce it into doing things

I ordered, but have not received yet, the: https://www.amazon.com/dp/B08RRWWJ7Z?ref_=pe_123509780_1038749300_t_fed_asin_title Mark K9TR

https://www.youtube.com/watch?app=desktop&v=qd6ViDMzOY8

Tony, list of the countries:

Trouble with these measures is that it not only about the tariff, it is also about the extra work involved, with all the forms to fill it takes easily somebody 10 to 15 minutes to process it, plus

It’s not just FedEx, I had a similar experience with UPS recently (was not a QRP-Labs order). The UPS fees were more than the tariffs and in total amounted to 24% of the order total.

So as @Ludwig_DH8WN pointed out, I checked the soldering of the L401, there were some toroid soldering points that were not making good contacts. After soldering them well, the measures are of around

thanks for the confirmation Hans i may have to buy a QMX to have a play, as lack of multitone digital modes was all that was holding me back :) Peter M0PWX

Figured it out. I got a solder bridge across two of the pins of IC204.

It continues to start up in boot loader mode. I can't talk to it using WSJT-X, it always starts up as a thumb drive.

We had seven folks join the MI QRP Zoom Chat on 03 April. Please join us Thursday April 10 (and every Thursday) at 4PM Eastern for the Michigan QRP Club weekly QRP Chat where the main topics will be

I replaced the bad output transistor in my QMX, and it wouldn't boot up. I get a USB drive, so I can talk to it through my computer. I tried dropping v27 firmware on it. It hangs on "Initializing: