Re: SSB audio distortion #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Hi Stan,
Out of curiosity, does it complete on consecutive runs for the same band or is just, seemingly, random?
After some couple of hours of messing around with band settings, I did get it do a
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Mehmet Dinch
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#142383
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Re: SSB audio distortion #qmx #SSB Firmware beta 1_01_003 release
#qmx
#ssb
Oops.? My reply and comments were intended for Mehmet.
I have some bands that have crazy-looking graphs like the ones he posted - even after I got them to complete all the way across.? But after
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Stan Dye
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#142382
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Re: QMX+ rev 3 freezes shortly after boot
All the resistance measurements look fine, as do the numbers on your diagnostic screen capture - showing that the power supplies are working fine, without any issues, at least when you took that
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Stan Dye
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#142381
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Re: QMX/QMX+ architecture
Alain,
Thanks for your response.
I found the description of the receiver in CW mode in section 5.22
"AGC system" of the QMX operation manual (1.00_026/27). There it is
described how the receiver
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Anders Helmersson
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#142380
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Re: SWR and PWR does not show lcd
I've tried the "TUNE SWR" in "Hardware Test" and it works perfectly.
If I transmit, PWR and SWr indications don't appear on the top right side of the LCD display.
I have the "Display " option enabled
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ec7zv0@...
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#142379
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Re: qmx+ cw reader
Martin,
I figured my QMX+ translates best, if the keyer speed is set to the approx. speed of the incoming signals. Be it received or when in practice mode. The manual hints at some parameters to play
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@DA2CW
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#142378
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Re: RTC battery mistake
I think it is unlikely that you could harm any circuitry by shorting the Vbat terminals together.
You could have drained your battery, if it was in for any length of time, since the + terminal could
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Stan Dye
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#142377
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Re: Help with partially fried QMX
Have you looked at this forum's wiki?? There is a topic specifically for the BS170s.? It has some helpful diagnostic guidance.? And you can search messages in this forum for BS170 and find a good
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Stan Dye
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#142376
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RTC battery mistake
Hi,
Although I got my licence over 40 years ago, I never pursued amateur radio as an interest until now. So, I was very excited this week to take delivery of my first HF rig - a new assembled QMX+.
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Paul G8MAD
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#142375
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Re: Help with partially fried QMX
Yes, of course.? In most radios with an internal SWR meter.? But this is DC ground.? RF flies through the transformer almost untouched.
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Stan Dye
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#142374
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Re: Real time clock
The clock, yes.? The VFO freq, no, if I understand correctly.? That could be added to a future firmware update, I believe.
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Stan Dye
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#142373
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Re: Real time clock
Yes it does on my QMX+. You might check your battery.
John
KK4ITX
?Each mistake is a learning opportunity.?
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KK4ITX John
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#142372
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Re: qmx+ cw reader
GE Martin,
I would start with the settings that are in the manuals, then;
* Turn the volume down! If too loud it’s hard to translate.
* Next adjust your filters correctly
* Try to use the Noise
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KK4ITX John
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#142371
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Re: Help with partially fried QMX
Hi Steve.? Thanks.
So even the CENTER of the BNC?? the middle, radiating contact of the BNC is connected to ground via T507?? MyBS170s look fine.? Is there a way to test them?? It makes sense
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VA2OJD
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#142370
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Re: QMX+ rev 3 freezes shortly after boot
Alright! I've got some updates.
I pulled off the front panel and did a close inspection of the display connections, didn't see anything obvious but cleared out some plastic and some small fibers,
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Michael Shiplet
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#142369
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Real time clock
I have noted that my RTC is wildly inaccurate, gaining 7 minutes overnight. I have removed it from the display...do not really need it. Does anyone know if the GPS module disciplines the clock or VFO
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Rick Hill
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#142368
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Re: Debugging BS170-related issues
Success !
When in doubt, try the simplest thing first.
After an afternoon spent looking for the esoteric solution, I touched up all the IC503 pins with the soldering iron.
4-5 watts on all bands,
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Steve N2IC
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#142367
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Re: Help with partially fried QMX
You will always see DC continuity from the BNC connector to ground through T507.
For no power output, start with the BS170's. I just went through this, frying the BS170's, IC503 and Q507.
73,
Steve,
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Steve N2IC
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#142366
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Re: Gibberish characters appended onto end of Message 1
Thank you very much! I've never heard of it, but I am not a techie so that's not surprising.
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Braden Glett
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#142364
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Re: Available Hand Mics for QMX SSB ?
Glad you liked it!
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Erik Larson
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#142363
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