Hello, I am wondering if anyone has been using LDG antenna tuners such as the Z-100, Z-11, or Z-817 with the QCX+/50 watt linear amplifier combination. I would be most interested to learn of your expe

My new QCX-mini 40 does works well, but with keyer setting, when voltage is less than 13.8 v, or with small paddles, the keying locks up on Dah- with letter G displayed following the frequency for sev

Ordered mine back in early December (3rd or 4th) and still have not gotten "the email" yet. Wonder what's the 4-1-1 on shipments. Thanks for the update. -- William, k6whp -------------------- "Cheer u

Groups like this tend to be a gathering point for those building and troubleshooting kits offered (in this case) by QRPLabs. One thing I have noticed, and this applies to a lot off other similar group

Some RF problems in the shack that do not yield to the usual ferrite chokes, grounding, etc. Would it make sense to put bypass capacitors on key, phone, power leads? If so, what value? I may add a GPS

I'm still not sure what I did wrong but I was trying to test voltage on one of the transistors. Possibly had meter in ohms, not sure. Doesn't matter. Time to move on. I haven't messed with it since th

Hello, I have several QLG1 GPS Receiver Modules. It has the YIC51612 Chip. I use one for the U3S - working perfectly. The other one should be used in a different environment. Therefore I need to set t

Greetings every one, I have just went thru the Adjustment of I_Q balance which appears to have worked OK. The current issue is that the bottom text of my LCD line is missing, I can not see the "under

Visible symptom: line of black characters at top of display. There is the expected seashell whisper in earphones. Checks performed: ATmega seated okay. Solder joints checked visually and by continuity

I got a QLG1 GPS receiver for Christmas and put it together over the holiday break. It didn't work - no data stream, no apparent satellites captured, etc. Having successfully completed three QCX radio

The device looks fairly robust, low cost, and has a 20V input voltage rating for a compatible footprint. However, from the data sheet, the following precautions would still need to be followed: 1. "In

Got my 20m mini all built and working. After several bouts of torroid wrangling to get the wattage up to snuff, cleaning off all the flux and stuffing it into the box I started setting up all the opti

I've built 20 m QCX (V3 board, 1.07 firmware). Turns on OK, Alignment went fine. RX works fine, but TX power is low - 1.1 W @ 12.2 V battery. Power consumption is ok on RX, 120 mA, but on TX - only 32

Got a chance to sit down and do radio this afternoon. Put the 20m mini on the air on my KIO hex beam. Thought I'd give the K3Y/ xxx SKCC event a try. worked 8 zones including K3Y/KH6 and K3Y/KL7. Grea

I built a QCX mini for 40m. Intermittently it works fine. Other times there is a very loud buzz. I made sure the case was connected to ground and it still buzzes. Here is a video with the buzz coming

Hi Constantine This happens routinely if you have the QLG-1 plugged in and is to prevent the downloading satellite info from keying the transmitter. You should otherwise not see "G". Please check if t

Having read all i can find on qcx cat control, I need to ask the group for confirmation. From QCX web pages "Most PCs do not have actual serial ports anymore and the typical set-up will be to use a US

All: I have lowered the price of my Beginning C for Microcontrollers book on Amazon (search: B08GFDGN7P). Also, the small font size issue has been corrected and the book no longer tosses in a few blan

Hi All Looking for some wisdom. A couple of days ago my QCX 40 suddenly got very noisy. The noise is a whooshing rumbling sound exactly like wind blowing across a microphone. It seems to get worse as

So, I just got my qcx plus put together and fired it up. First problem was blank screen. Adjusted r47 to no avail. Disconnected power and went back through everything. Discovered that I, somehow, fail