QCX Mini WSPR Without a GPS
While waiting for cables to arrive to hook up my QLG2 to my 30 meter QCX Mini, I tried WSPR absent a GPS in line to lock the clock.
I set the clock manually via the onboard QCX Mini menu by watching
By
Bill Jobes
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#125773
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Re: #qmx #firmware 1_00_020 released: minor stuff and bug fixes
#qmx
#firmware
Thank you Hans!? I've been greatly enjoying my QMX+!? :-)
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Dj Merrill
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#125772
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#qmx #firmware 1_00_020 released: minor stuff and bug fixes
#qmx
#firmware
Hi all
I released firmware 1_00_020 for QMX and QMX+ which you can download at
http://qrp-labs.com/qmx and there is also an updated operating manual for
this version.
Please note, this is a minor
By
Hans Summers
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#125771
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Re: QMX Rocks!
I agree 100%. It's a ton of fun and surprising the amount of DX that is possible given the conditions and the power of FT8. Since mid-May I have worked 23 countries and completed the 13 Colonies clean
By
James N7CQ
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#125770
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Re: Special considerations when sourcing replacement capacitors?
#qmx
I also had a bundle of caps in my drawer, but I decided it was best to buy the right ones,
Look at
By
w8gu@...
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#125769
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Re: QMX+ audio amp/speakers
Thanks for your reply Dan. I had considered shielding but before doing that I decided to take the time to run all of the diagnostic sweeps on all bands with and without the speakers sitting on the Dev
By
Randy Paulson
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#125768
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QMX Rocks!
I've been using my mid-band QMX for several weeks on CW and FT8 (mostly CW) and have had a lot of success, the majority of my QSOs coming with US stations. But today I ventured up to 15 meter CW and
By
Jim Bennett / K7TXA
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#125767
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Re: Special considerations when sourcing replacement capacitors?
#qmx
na5n
PDF Document · 1.7 MB
Sent fromj my iPhone
By
Ed Kwik
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#125766
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Re: My QMX+ has a .3 ohm short on VDD
Dear David,
Board tapping is a good method in finding an intermittent connection sometimes. I have done this with some success in the past. You might help narrow down the area using a narrow
By
Gregg Myers
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#125764
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Re: Defective PCM1804
Most devices are tested at the die stage of manufacture, but not many devices are 100% tested after packaging. Over 50 years of designing and have pcb assemblies made, the failure rates are
By
Robert Stephen
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#125763
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Re: Defective PCM1804
That leaves me one idea to explore, but I'll have to build the kit and measure transients to check it.
By
Chuck AI7SY
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#125762
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Re: My QMX+ has a .3 ohm short on VDD
Dear Greg.
My resistance measurement comes and goes.... when it isn't .4 ohms it is about 2.4kohms... tapping the board makes it change.? I have gone back to the work bench and rechecked some solder
By
David R. Hassall WA5DJJ
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#125761
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Re: Defective PCM1804
In my case, I went out of my way to ensure that I had proper ESD procedures in place when I opened and assembled my kit. Wrist strap, anti-static mat with grounds. The unit powered up perfectly the
By
mux_folder2001
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#125760
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#qmx
#qmx
Hi All
I finished my QMX+ build on June 28. After some tweaking on the LPFs it was on the air and working well.
I worked the 13 Colonies Special event? with the QMX+, worked all 13 colonies and
By
Bill Stauffer
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#125759
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Re: Defective PCM1804
Both my QMX builds came in an anti-static bag.
The instructions do say to observe ESD precautions, but the boards see quite a bit of handling by the builder to separate the various sub-boards and
By
va3rr
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#125758
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Re: Defective PCM1804
Doh! Indeed it is. What I was seeing was the prototyping board through the bubble wrap, now that I've got the thing completely unpacked. That rules out my shipping idea.
By
Chuck AI7SY
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#125757
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Re: My QMX+ has a .3 ohm short on VDD
Dear? Ludwig,
thanks for the links.?? I got them yesterday and used the information to try to log into the diagnostics...
I did get the hardware page and some helpful information.
thanks for
By
David R. Hassall WA5DJJ
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#125756
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Re: Defective PCM1804
Hello Chuck
The main board IS anti-static packed...
73 Hans G0UPL
http://qrp-labs.com
https://www.buymeacoffee.com/g0upl
[email protected]> wrote:
By
Hans Summers
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#125755
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Re: Defective PCM1804
Wolfgang Pauli once said to Niels Bohr after a lecture "Your idea is crazy, but is it crazy enough?".
My kit arrived Monday, and I've been finishing a 1.25m repeater before starting (think of a horse
By
Chuck AI7SY
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#125754
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Re: Another QMX+ got onto the air + Low Tx Output
Thanks Jim, let me know if you find anything...
73 Dave G4FAW
By
Dave Cutts
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#125753
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