开云体育

Hi Jack, I also have a Heil ProSet Elite iC headset. Would you be willing to provide your adapter wiring details? Thanks Errick N9DWD

reminder: this radio booted up and transmitted before I shorted something near the PA. update: new SMPSU boards arrived, I tested before installation, as per the wiki article, and they seem fine. I

To be clear, that spike to 5.7v under worst case 12v supply interruptions would not have damaged anything on the QMX+. Also, the QMX+ has 470uF on VCC at C107, when I repeat the test with 470uF added

Dear Ludwig Here follows the next chapters! I have removed Q102 and Q101 and tested the LIN_REG_EN at the gate of Q101 I got +/-0.6V when pwr button is pressed. So my LIN_REG_EN is being puled down or

You’re on the right track. I suggest you use a very thin layer of thermal compound between the heat sink and flats of the TN0110’s since you’ll be using it in a high-temp environment and a small

Bug in firmware beta 1_01_003 display during Tune SWR: When I choose Hardware tests and then Tune SWR from the QMX menu, the screen shows a frequency, the tune %, the band, and SWR:. Pressing the

Yes, by time, by changing temperature or after some mechanical pressure. And check please also solder joint from T401 towards IC402 pin 7 for QMX Rev. 1 or pin 9 for later revisions. 73 Ludwig

Also check that it is still set to the correct band version in system settings

The same here. 73 Ludwig

Roger, This behavior could result from a cold solder joint in T507 or its associated circuitry.? Temperature can change its connectivity. Stan

Noted, thanks Tony 73 Hans G0UPL http://qrp-labs.com https://buymeacoffee.com/g0upl [email protected]> wrote:

I found the problem.? I was curious about the output power and turned on the power display.? When the display didn't show power or swr, I started troubleshooting that symptom.? It didn't take me

Nobody else is complaining of the same problem, so, were I in your shoes, I would look for a systemic problem in the way I assembled my QMX+. Several thoughts: 1) perhaps you chronically miscounted

I'm not sure if Hans reads every message so I am posting this with its own heading. I discovered that the SWR sweep test does not actually sweep if the rig is set to use VFO B. Other sweeps seem to

I tried switching back to 1.027 but it still would not sweep during an SWR sweep but then I noticed that the rig was set on VFO B! I switched back to VFO A and it sweeps correctly now! That seems

Thanks for the reply! Could the solder joint have gone bad on its own? As I stated, it was working perfectly fine until about 1-2 weeks ago. I'll test it this evening though

Okay, I am running Firmware 1_01_003 ( https://qrp-labs.com/images/qmx/ssb/firmware/1_01_003.zip ) and have run the calibrations, but haven't started adjusting band settings or attempting any SSB

I can tell it is not sweeping when doing an SWR sweep because the external SWR meter holds steady while connected to my 6BTV. If I do an LPF sweep, the external meter swings all over the place as it

Hi Hector, alle the values are much to low, around -40 dB for the (real) peaks. It looks like a bad connection in the RX path. Please check solder joint of L401 towards IC402 pin9 for QMX Rev. 1 or

I like to participate in the ARRL FMT runs.?So . . . I have investigated frequency response accuracy of my High and Low band QDX's, my HB QMX and my QMX+. Don't have a QCX so can't speak direct to