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Larry, I have had a similar effect a few days ago. I have used 4 co-located GPS antennas working with 4 different radio projects. All have worked properly for many months. I then moved one of the

The soundcard works only when the qmx is powered on. It isn't usbpowered. And, as in all other "no tx", is the audiovolume at maximaum? Not to forget, turn into digimode.

my Parameter under Linux Mint 73 Bernd

Hello matjaz Have you activated the Dailout in your group settings. A reboot must then take place. I use QDX hig and Low Band under Linux Mint

For searial connection 1. Plugin 2. 'sudo dmesg' and you'll find the right device Or: a way for unique naming: (not sur it will have qmx or qdx in the name) unplug and check whats inside:

Hi Ludwig Sorry for the delay but family matters over the weekend.? I've done many measurements and am reasonably certain either the 'scope or the probes are limited in bandwidth.? See my notes and

Larry, That does sound like your GPS unit is defective. If you have an appropriate USB to serial cable , you could check it out stand-alone on just a PC. The pinouts are easy enough, but you need to

Update. I took the QMX+ back to the shack and removed the gps and reheated the solider joint on the module and the main board. No change. After reassembling everything and powering it back with the

I have a new QMX+ that was ordered as built, with the GPS Option and built for 12 volt operation, installed the 3 volt battery and then went to test. Using a small cheap Thomson laptop with Win

Thank-you DJ!

You guys got me hooked on crochet hooks for the QMX+ ! -- 73 Karl KI4ZUQ

May not be your problem, but I ran into the same issue. Powered via the QMX+. Tried another antenna? - worked fine. Reconnected the one from the GPS option kit, and discovered I hadn't screwed it

Actually the 4 inch steel octagon cover of an electrical box is almost the perfect size for a GPS ground plane and works well for me. 73, Don N2VGU

Now that I think of it, check the ground and power supply connections on the top of the GPS board and see if you can confirm solid connections. 73, Gregg

Hi Larry, FWIW, mine is not on a cookie sheet, but in a window sill. But I know the cookie sheet helps a lot. Technically, they do much better on a cookie sheet. Hopefully, you get it

Gregg I checked the jumper it was good, I had mine to VDD to start then moved it hoping it may make a different. I’ll try the cookie sheet then an other antenna. [email protected]> wrote:

Hi Larry, make sure your GPS jumper is not shorted to the GPS SMD connector. You can see it looking at the side of the board. Mine works fine, but I am jumpered to VDD. Your jumper needs to be very

I can’t get my QMX+ to connect to the gps. I have the setting for QMX-internal. The jumper is set option 2 for the battery. The clock is on. Real time clock set to QMX+ RTC Hardware test for GPS

/g/QRPLabs/files/Alternate-QMXPlus-Front-Panel-Assembly.pdf

Could someone point me to the thread describing the alternate method of soldering the display? ?I think it required a partial disassembly of the board, but allowed easier soldering? Thanks in