Nice product. I'm wondering why you used a USB-B connector rather than either of the 5-pin mini or micro USB connectors? That might have made the footprint a bit smaller, unless you already had plenty

Hi Bob I agree... most people seem to think the washer is the heatsink but it is not. It is just the mechanical means to force the flats of the FETs against the PCB, which is the real heatsink.

Very nice "cooling" article. You probably should put some thermal compound between the FETs and the large solder pad on the circuit board, as that's the primary heat sink for those transistors. The

I know you have managed to get this going, but you need to enter a frequency for park mode, I believe this is used in the cal process, you need to allow a min of 60 seconds for calibration, if you

Hi, I've created a blog post on how to replace the QCX Mini AMS1117 regulator (I've used a regular 7805 but the same procedure also applies to the 78M05 in SOT223 or So-252). QCX Mini - Replacing the

Hello Chris The supplied external antenna is the only supplied option. You could, I suppose, connect your own onboard patch antenna with some modifications, but the PCB has not been designed with

Hans, Yes, various programs some here https://sites.google.com/site/g4zfqradio/incircuitprogramatmel168#h.xgcklhbd8exw Some use NMEA, good enough for WSPR, some use PPS as well although a real COM

Is there an patch antenna on the board that you could also use, or is the external antenna the only option?

Hello Steve Yes! There is a jumper on the PCB so you can choose to power QLG2 either from the 4-pin header that you would connect to an Ultimate3S (for example), or from the USB connector. The

Will it be possible to power the QLG2 from a computer via the USB connector? Will the QLG2 be suitable (without additional hardware) for synchronizing a computer clock for portable WSJT-x

I did ordered QLG1 last week with my u3s, may be the last among the QLG boards sold. I guess the QLG1 will not disappoint me as the newer version is already being introduced. Wish me luck 🤞

Hi John TNT and FedEx are the same company since 2016. I'm Europe normally TNT makes the delivery, in US/Canada FedEx deliver it. 73 Hans G0UPL http://qrp-labs.com

Hi Hans, Just to let you know I ordered a few bits from you last week and they were delivered this morning.Obviously the FedEx service pretty good although delivered by TNT .

I guess it's about time to retire my oldest two of VK16's that have served me well over the years. Thanks Hans 😎 regards Alan On 08/02/2021 10:17, Hans Summers

It's very frustrating because I have built several other projects using this processor and display and never had any problems. After all, there isn't much to go wrong! Mike

Hi QRP Labbers Summary The QLG1 GPS mpdule is now being retired, due to component sourcing issues. As of today, all our stock of QLG1 has been ordered. I have designed a replacement QLG2 GNSS module

Hi Alan, Ed. It's logistically more difficult too. Yesterday I extracted 10,000 spots. at 18:00UTC roughly. On 20m that produced about 20 minutes of data, on 40m, less than 10 minutes, and on 30m

Ed, Analising the results of that does not seem simple. How many use WSJT-X or other WSPR programs that use "random" timing at different TX percentages? Those could overwhelm users with fixed timing.

Hi Ed. That might be possible...let me have a look. Roger --- *************************** Roger Hill ***************************

Hi Roger, Would it be possible to create a time histogram over, say an hour period, at 2 min intervals - are there preferred TX times as well as frequency ? Regards, Ed G8BQR