QMX and QDX - Not enough 5V PTT oomph
Good evening from chilly Southwest Florida
I've run into an issue with a relay I wired into an adjustable attenuator board.
The PTT signals coming from both my QMX HB Rev2 and my QDX LB rev 5 aren't
By
Greg McCain
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#136684
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Re: Soldering Station Recommendations
Hello Greg:? based on your experience with it and reviews I've read on Amazon, I'm going to order the WEP 882D.? Just $60.00 -- amazing, for so much flexibility!? The fact that you built so many
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Dave S.
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#136683
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The USB connection is not working.
Hello, I just built a QMX+, the controls on the device work, but I couldn't test it fully because I don't have an HF antenna in my workshop. When I wanted to test it by connecting it to my computer, I
By
tkoca@...
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#136682
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Re: Initializing:Enable SI5351A
Mine did that recently too.Just shutdown everything and reconnected PD bank and trigger cable, USB cable, dummy load etc.
Have no idea why.Just did it once.
GREG
Yahoo Mail: Search, Organize, Conquer
By
Greg McCain
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#136681
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Re: QMX+ with ~1000 tone on 12M & 6M
I have tried the dummy load with no change in symptoms.
Mike, your FT8 plot at least gave me a hint of how to 'see' the tone, HIHI.? I had to install WSJT-X on my little Raspberry and set it up (
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Richard Hattaway
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#136680
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Re: Initializing:Enable SI5351A
From the pic, it appears to be a QMX+.
- Bruce K1FFX
By
Bruce K1FFX
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#136679
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Re: Initializing:Enable SI5351A
I've seem this once and am also puzzled.? However I have noticed that my QMX is susceptible to ESD and if it gets zapped it does weird things.? (when my clothes clash ESDwise with the material in my
By
Brien - KE7WB
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#136678
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Re: Initializing:Enable SI5351A
What device?
The message seems to indicate a problem with, or around, the SI5351
73 Alan G4ZFQ
By
Alan G4ZFQ
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#136677
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Re: nothing happening
Hanz, I don¡¯t have a QMX+ V1, but I¡¯m not convinced that you have interpreted the pinout of JP104 correctly. ?I think pin 6 should be ground, not pin 2, using the numbers you have added in the
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Nick Garrod
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#136676
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Re: May the Morse Be With You
My favourite is
http://lcwo.net (short for learn cw online)
It is web based, has got a wide variety of options to practice acc. your
choice, it is translated into 30 something languages and most
By
ta2rx bekir
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#136675
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Initializing:Enable SI5351A
When the device is turned on, it shuts down after this error message. What could be the reason for this error?
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Halil <halilgulmus@...>
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#136674
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Re: nothing happening
Well rats.
Honestly I'm out of ideas.
I can't imagine why the Mac thought the Q was consuming too much power, as the USB on the QMX only uses the two data lines. No traces from the USB to anything
By
Greg McCain
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#136673
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Re: Fldigi RTTY dropping PTT with QMX and QMX+
Excellent!
Tuning off Shapped tx did it!
Stan, thank you so much for your help.
Best 73, Bob
By
BOB GILLILAND
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#136672
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Re: nothing happening
Sorry Nick i forgot to mention the plus.
By
hanz YL3JD
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#136671
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Re: Fldigi RTTY dropping PTT with QMX and QMX+
1. Make sure that TxID is turned off.? Its timing is incompatible with QMX current tone detection, and QMX will drop tx in the pause between the TxID and normal modem signal (happens in many fldigi
By
Stan Dye
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#136670
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Fldigi RTTY dropping PTT with QMX and QMX+
I¡¯m trying to use Fldigi RTTY and seeing the PTT dropping at the very beginning of transmitting text.
watching QMX output on my scope I see initial RF signal for less than a second and then output
By
BOB GILLILAND
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#136669
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Re: Computer not connecting to newly built QDX
Even plugged in the QDX, waited until LED stopped flashing, plugged USB cable into computer and got "unknown device."
Yes, I did the v3a cut on the pc board. Not doing it I think would result in
By
Karl
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#136668
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Re: May the Morse Be With You
Hello.
I am returning to ham radio after more than 40 years away. In order to regain some proficiency in CW I have purchased the device referenced in this URL. I am very pleased with it and it is a
By
Jim VE4BWG
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#136667
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Re: nothing happening
Just for information Hanz, the picture you sent appears to be for a QMX+ Version 1, not a QMX.
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Nick Garrod
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#136666
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Re: Computer not connecting to newly built QDX
It could be a defective, since you seem to
have the right cables and are
confident in your assembly. Contact QRPLabs!
Good suggestion, George! Here is my tester in action confirming tha both power
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Karl
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#136665
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