开云体育

I should experiment rather than ask, but can the QCX be adjusted for a narrower passband? -- Brent DeWitt, AB1LF Milford, MA

Based on some of the threads I ordered a 8 AA battery case as a backup power source and for RFI reference against other rechargeable battery solutions.? However, the output voltage is 12.9 volts.?

Wow, I am 82 and have been soldering since 1955. I have been building kits all those years. Just finished QMX+. I will keep smelling that solder smoke. Mike WA8UOC <Djwilcox01@...>

Nolan - This was something I'd been curious about. The specs for the components in the QCX mini seemed to be phone specs, which are pretty rugged. To test this I've done an ad hoc test - I've left a

Hi Bill. Hope this helps........ If your GPS kit is the one that was ordered with the QMX then the full installation instructions are in the 'firmware' manual on the QRP-LABS website in the GL2

The GPS interface (1pps and 9600 baud serial data) shares the same pins as the paddle dit and dah signals (necessary due to limited processor I/O). The style of this interface is the same as the

Hi Rick, to get the QMX RF output power from 5W to about 2W for now it is the only option to lower the power supply voltage from 12V to 8V to. If this is a 12V QMX. For 200mW you will need a 10dB

There are settings in setup for each band. Use putty to telnet to it, obviously not when using any other app for digital modes. I also have a voltage control on my power supply and I use that in

What is the best way to reduce the RF from 5 watts to around 2 watts on the QMX transceiver? I see nothing listed using the Cat Command... I would like to be able to run about 200Mw on WSPR and around

Dear David, I am glad you are seeing some progress. As best the reports say, shorting the VDD to ground will not necessarily kill the 3.3v switching supply. So hopefully, you don't need a new PCB

Yep, same here - drops off quite a bit as frequency goes up, unfortunately. I've been meaning to play around with toroid wire spacing to see if I can get an improvement but in the mean time I've gone

Just got My QMX+ finished, and I am seeing similar performance on Tx. Mine starts off at over 5W on Top Band but goes down to just over 1W on 6m. I was goung to ask the question on here but spotted

Is there a single source with either a video or text on precisely how to connect and use the GPS Receiver Kit ?? I'm new to WSPR and am having trouble cobbling together info on connections, cables

Afaik no IQ mode. The real audio should be sent to the computer (see chapter 6 of operating manual). 73, Ludwig

Never mind ?. Had to be something stupid and it was. Putting the rig in IQ mode is not right. I look it out of IQ mode and all is well. Tony AD0VC ________________________________ Sent: Wednesday,

QMX requires TS-440, I assume same for QMX+…? Paul Wamble 214-405-5876, iPhone

Forgot to mention that I also set up the audio to use the QMX audio device. Tony AD0VC ________________________________ Sent: Wednesday, July 10, 2024 9:47 AM To: [email protected]

Now I probed around the PCM1804. It still sends out data. Which makes sense, as I have noise in the speaker. Signals are present at the input pins, too. Could anybody confirm that the PCM1804 dies

Since I got my QMX+ back from Jeff (W1NC), I have been using it on CW and it works? fine. Today I decided to try FT8. I have a QDX so I am familiar with QRPLabs FT8 setup and operation. I started by

Daniel No, when I saw the smoke, I detached the PS as fast as possible. I can not see any burnt component or even traces of smoke. The USB cable is under suspicion, may be defective. But I can not see