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Andre, And may you have lots of fun! I wonder what sort of foam? Even the black anti-static does not normally seem to conduct. 73 Alan G4ZFQ

The antenna on the GPS module is so nice I would not rule out its use. I mounted the entire gps is a deluxe plastic kitchen container. The lid is a fine radome, the clear body presents the flashing

Hi Curt. I use one of these GPS antennas. It needs the DC along the cable to power it, but it works extremely well. I have also made a dipole on the end of a short length of semi rigid coax in the

That is *exactly* what I did. My active GPS antenna sits on top of a metal cabinet in the room where I have the U3S/QLG1 and works fine. Paul N1BUG

Thanks guys! ?I think I'm going to pickup one of the active antennas on Amazon. ?I guess I'll solder a jack onto the OLG1 and use a 6" angled male to female bulkhead connector and drill a hole in

Got it working! It was a defective 10-way female pin header; the one into which clk2 connected. Fortunately, I had a couple extras in my junk box. Thank you, Hans! BTW, another question: On the relay

Hey Curt, I built a small acrylic case for the QLG1 and used the DB9 slot on the back of the supplied U3S metal case.? I like to take my U3S on the road from time to time so I just pack the 2

An alternative approach to an external antenna: I'm using the QLG1 with the VFO/SigGen.? The VFO is in the basement, and? GPS reception down there was real spotty.? Rather than purchasing an active

Happily I can annouce: complete success! I had overlooked a foam pad that was clinging to the soldering side of the board and completely messed up the RX. After taking it away I had a

Hi everyone, new member here. ?I have a 6 band WSPR kit on the way and I may be interested in buying a clock kit or two. ?I'd like to have the WSPR kit in the metal box that I ordered with it but I

Hi Andy, I see your point, but I assume you have a single band operation. I have switched LPF/BPF boards in all my kits and you can't set the LPF/BPF position in Park mode. But thinking about it I

Great! That's a good start. Andre, The calibration signal is applied to the antenna input from IC3 by way of R43. If it calibrates you should receive something. Maybe a bad joint on T1? This is to be

Hi Alan and Jim, SUCCESS (well, more or less, see below). I have replaced Q1-3, Q4-5, Q6, and IC3. Now RX draws 125 mA (display installed) and shows a whopping 3,4 W TX-output with 12V input. The

Then this explains the problem. You have a signal at Clk2. Clk2 is supposed to be connected to pin 11. But you see no signal at pin 11. So for whatever reason, there must be a break in the connection

No signal at pin 11.

What is the signal on the 'scope at pin 11 of the AVR chip? 73 Hans G0UPL http://qrp-labs.com

That's certainly mysterious. Vdd is in spec. I'd probe the Vdd supply line with a scope now and look for transients. Failing that it's replace the Si5351A and/or a software problem. Chris M0XTE Links:

Also, I have re-flowed every solder joint on both boards, with particular attention to pins 11 & 15 on the Atmega 328 socket and pins 13 & 14 on the Si5351A board. I have a good, clean, well-regulated

Hi Jim, those 140 ohms at Q5 looked fishy to me too. Now I know why -- thank you. The present state of the board is this: a. Q4 has been replaced. b. Q1-3 have been taken out. c. IC3 has been taken

The voltage on pin 2 of the LM317Z measures 3.43 V.