WB6RER-2 32" Yokohama U4B on 10m was launched at 15:36z this morning from Golden Valley AZ. Was a great zero wind morning and we had pretty much a vertical launch. We are seeing it's location by grid

I have only been using WSJT-X for many months and wanted to get back to JS8Call and PSK31. I am using "Build a Pi " 64 bit OS with all updates. 1) I solved the pi's USB recognition issue of the QDX by

Hallo zusammen, Leider wird mein QDX-Transceiver zur Zeit nicht von Windows 11 und Windows 10 erkannt, obwohl dies früher funktionierte. Ich gehe mal davon aus, dass es wohl im Gerät irgendwas gehimme

I have decided to make some of the external clock reference interface boards for the QDX, both the direct and the clock-multiplier versions. Also I will have replacement QDX back-panels so we won't ha

Hi all Has anybody tried powering a QDX with three 18650 LiFePO3 cells? The fully charged no-load voltage is about 12.15 VDC for three in series, and a partially charged voltage around 10V. I'm thinki

So I just got done with my first build of the QCX Mini on 40m. So far it passed the smoke test. I did add on the TXCO and I was not sure about the AGC module as I could not find any reference at the t

Hi , I’m new to this QRPlabs group.io and also new user of Progrock2, I have some experience on former Progrock. Can anyone answer that question : The current supplied to Progrock2 is between 45mA and

I've put together a PIN-diode based radiation counter for balloon launches. My prototype in the photo, built on 0.050" sq., 0.8mm grid board, weighs 6 grams. This is loosely based on a design put out

[image.png] That's it, other than the 40M Hamstick on the rear bumper and a qrp tuner, which could be replaced with a cheap manual tuner. That's an On The Go (OTG) cable on the cell phone. Swapped mes

…I totally forgotten how to enter and save messages into my QCX-Minis. Please don’t suggest I “red the manual” because I have it open in front of me — and still can’t figure it out. I did it successfu

Hi all... Wanted to put out the question, to Hans and others, in case it's not already existing somewhere, of what one can do, or would want to do, to "bring forward" the earlier PCB versions? I have

I am building my QDX (Board 3A) right now. I am curious about toroid winding. Has anyone experienced trouble if one's toroid is "untidy", i.e. one or two loops are not tight to the ferrite? I assume t

I there anyone who can repair a QDX? I have blown Q7 and possibly something else. Is there anyone who can repair this for me? I would be happy to pay for the repair.

I need help with a broken QCX-mini. I built a QCX-mini 20m back in December and everything was going great until I lost all RF power output. The radio functions normally, it receives well, tunes well,

I just finished building the QDX, my third or fourth qrp-labs kit. Receive is working perfectly. The led pulses on transmit and I can hear the tones on another receiver. However I don’t see the slight

Hello I am new to the u4b board, and I have started to setup my u4b. I have antennas soldered on and I made my tracking page. However when I go to the tracking page, there is no output from the TRACKE

I have a Light APRS+WSPR tracker intended to be used on a pico balloon that will float higher than 12,000m. I am curious about this variable in the source code: ublox_high_alt_mode_enabled = false (wh

Have I missed it ? I havnt seen a QRP Labs NewsLetter since Aug 2021.

My QDX with Rasp 4 and WSJT-X is now running (see problem in #99825). The lack of QDX response was due to unconfigured firmware. I had initially used firmware1.6 sent with the QDX kit and the built QD

A receiver with a Tayloe detector seems to be a good way to listen to HW. For SSB I need polyphase network, that much I know. Polyphase network is critical. But there are versions 4 inputs and others