Anyone know if there is anyone down Australia or New Zealand way that has recently launched an ocean drifter transmitting on 40m? cheers Graham ve3gtc

Being a newbie, I’m having trouble soldering solar cells together. Anyone have any suggestions? In the meantime I do have some PowerFilm 4.8v, 50mA panels, would this work? The Voc is over 6v. Would t

I have posted two messages by using the "New Topic" form on the QRP Labs Groups.io page. The second was a duplicate of the first when that didn't show up after 2 days. However, none of those are not v

I went through all of the setup. CAT control passes. I believe all of the setting are correct. The LED stays on when it should, blinks when wsjtx transmits. For all intents and purposes it appears to

This is certainly nothing groundbreaking, but I'm sure excited seeing people all over hearing my U4B just lying outside on my deck. I'm running from a 3.7 Volt LiPo and HP=1 Here, if you don't want to

I finished the QDX and configured everything correctly I presume. (See Pictures) I connected everything, computer (New Dell laptop running Windows 11) sees the QDX. With wsjtx CAT control is there. Wi

I just received my 3 low pass filter kits which I am assuming are the latest Rev2 as marked on the PCB, which have 2 capacitor positions for each cap label (outlined in red in the pic below) However,

My 30m QCX+ rig was up and running for a couple of months, with no problems. While connecting the power plug (after moving it's location on my bench), I inadvertently touched the dc connector (hot wit

I've recently become interested in Digital Modes on 2 meters. (Trying to communicate with my son 8 miles away .. HF NVIS has been problematic). I tried to find some cheap SSB 2 meter rigs to test the

K6JTH was kind enough to send me a sample of his 3D design for a QCX-mini stand and I’m impressed. Good design combines the simple with the versatile and this is both. Hans might want to look into off

Does anyone know where I can get a replacement bulk head connector for the QCX Mini that will fit (size, spacing, etc.)? There are many out there but I don’t know the correct dimensions or manufacture

I must be missing something here. I picked up a QCX Mini at the Hamvention yesterday and have it mostly assembled. But the pins in the 2x4 header in the control board seem way too tall and the board d

I am building the LPF's for 40, 20 and 15 meters and I just received the Rev 2 boards but I am puzzled by the markings on the PCB which show two (2) positions for each of the parallel caps (see attach

I stopped at the QRP Labs booth in building two today. I purchased a QDX kit. The fella at the Booth pointed to maybe five or six kits, and said that was all there was right now. I was happy to be abl

Hello all, I have built up a 20m QCX-mini and all seemed well when I powered it on. I was in the process of doing the alignment and had trouble with the adjustments jumping all over the place while ca

Hi All, If you go to Dayton or order from Internet the GPS kit is a winner. If Hans brought some snap it up. In 15 min you can make a field clock that is more accurate than a cell phone UTC app which

Are there any resources on communicating with external I2C sensors using the U4B? I was looking at the AHT-20 + BMP280 modules. A link to the modules I was looking at https://www.ebay.com/itm/29469114

I am ground testing the U4 tracker in my office in my house. I have only extended the 20 m dipole antenna to 50cm per element.I have wspnet reports from as far away as 1400km The antenna is sitting on

I know Hans is crazy busy and everyone is having difficulty getting parts, but in so excited for any info on the QSX. It's everything in looking for in a QRP rig.

Is there an official mod (or even an updated QCX Plus) with the facility for a separate receive antenna? When portable this shouldn't be necessary, but many of these rigs are used in domestic environm