Hi Art, I tried a similar fix on the module. No dice. I am genuinely thrilled with Hans and his kits! I can't wait to get my mitts on a 40m QCX Mini! I already have 3 QCX originals and I love them! VY

#qlg1 #clock #gps

Glen I repaired my QLG1 using my rework station to remove the rf module, cleaned the pads and reinstalled it. Worked like a charm. Art N2AJO

#qlg1 #clock #gps

Glenn I had the same issue vcc pin on the rf module was shorted to ground. I didn’t think to let Hans know so I just ordered an assembled one yesterday. Oh well, this was only my first kit from Hans t

#qlg1 #clock #gps

It's ALIVE! I want to thank Hans for making his cool kits but also for fabulous customer service! I assembled my QLG1 GPS unit and it didn't work. I narrowed it down to the SMD module - a dead short b

#qlg1 #clock #gps

stl for the above

#gps #enclosure #qlg1 #case

G-Code for Prusa MK3 in PETG

#gps #enclosure #qlg1 #case

I’m interested in making your case if the files are available

#gps #enclosure #qlg1 #case

Your scope Horizontal Timebase is admirably accurate! Dave

#progrock #qlg1

Hi Bob The serial data starts when the 1pps signal goes low. While the 1pps signal is active, there is no serial data. The important instant is the leading edge of the 1pps signal, which is clean. 73

#progrock #qlg1

Could that "grass" be when the actual NMEA data is being sent out of the QLG1? It seems to last about 0.5 to 0.6 seconds and might be present while the 1PPS signal is high, but we just can't see it. C

#progrock #qlg1

I am currently using a QLG1 GPS to drive a shack clock, ProgRock, U3S and a VFO. The 1PPS signals are put through an AND gate in the U3S and the VFO to stop the display flashing when that unit is not

#progrock #qlg1

Victor, No, but it might show if the QLG1 is at fault. 73 Alan G4ZFQ

#progrock #qlg1

I have used the U3S on WSPR with 200 mW and got good reports worldwide on 30, 40 and 15m. By adjusting the parking frequency I have got consistent drift reports of zero and 1. So it works well. Does t

#progrock #qlg1

Victor, Have you checked the accuracy of the U3S? I think WSPR TX is still 2Hz out but I think that is for a different reason. I guess other modes on the U3S should be accurate. 73 Alan G4ZFQ

#progrock #qlg1

Here is a picture of the 1 pps pulse from my QLG1, connected to the GPS input of the Progrock: Note the "grass" growing after the pulse. I believe that this is crosstalk from the GPS data that is also

#progrock #qlg1

I am continuing my experiments to try to get my Progrock plus QLG1 to provide the accuracy they are supposed to. In my latest test, I programmed it to 10 MHz and compared it directly to WWV. I can cle

#progrock #qlg1

Geoff, OK, it's some time since I used that method. I find a SDR or Speclab display easier and gives sufficient accuracy. That's what we expected. Could be why we are now on even terms with the rest.

#progrock #qlg1

Are these the ones with digital compensation? There was a discussion some time ago about these, instead of a slow analogue variation they jump, often 1Hz steps. https://sites.google.com/site/g4zfqradi

#progrock #qlg1

I have a few ProgRocks I've been playing with GPS calibrations. The frequency varies quite a bit, probably due to room temp, and I have it sitting out in the open. I bought some FOX TCXOs, at DigiKey:

#progrock #qlg1

Alan, up to about 10Hz deviation should be easily seen on scope display any more than that and it would be difficult to count the audio beats. IoW covid doesn't look good, please take care. I heard to

#progrock #qlg1