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#qcx40 #problem no audio
#qcx40
#problem
#resolved Thanks Jim. I found the volume control potentiometer was bad--wiper not connected internally. Not exactly what you were thinking, but thanks to your clue the pot resistance was the first thi
#resolved Thanks Jim. I found the volume control potentiometer was bad--wiper not connected internally. Not exactly what you were thinking, but thanks to your clue the pot resistance was the first thi
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By
john.rogers@...
· #40657
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#qcx40 #problem no audio
#qcx40
#problem
Hi, John Section 6 of the manual deals with trouble-shooting. Starts at page 126 in the original manual. One thing to check, before getting too deep, is the resistance from the volume control wiper to
Hi, John Section 6 of the manual deals with trouble-shooting. Starts at page 126 in the original manual. One thing to check, before getting too deep, is the resistance from the volume control wiper to
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James Daldry W4JED
· #40578
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#qcx40 #problem no audio
#qcx40
#problem
Did you update to the latest firmware 1.02? If so what is your side tone set at ( Menu 4.8) Try 750.
Did you update to the latest firmware 1.02? If so what is your side tone set at ( Menu 4.8) Try 750.
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By
Chopper
· #40573
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#qcx40 #problem no audio
#qcx40
#problem
QCX Enthusiasts, My QCX 40m suddenly stopped producing audio... Front panel display is OK. There is no sound from the antenna. There is no side tone. Keying the paddle produces clicks--one click for e
QCX Enthusiasts, My QCX 40m suddenly stopped producing audio... Front panel display is OK. There is no sound from the antenna. There is no side tone. Keying the paddle produces clicks--one click for e
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By
john.rogers@...
· #40572
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Need help fixing audio (or more) on pre-built QCX I broke
#problem
#qcx
#rcvr
Derek, I have repaired a few QCX units for fellow hams. No charge, just part of the fraternity. Let me know if I can help.
Derek, I have repaired a few QCX units for fellow hams. No charge, just part of the fraternity. Let me know if I can help.
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By
Wes
· #39942
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Need help fixing audio (or more) on pre-built QCX I broke
#problem
#qcx
#rcvr
Thanks for adding me to the group! I hate to admit how little experience I have, but my purpose in coming to this group is to ask for help in fixing my QCX. And by “help” I need to ship this little wo
Thanks for adding me to the group! I hate to admit how little experience I have, but my purpose in coming to this group is to ask for help in fixing my QCX. And by “help” I need to ship this little wo
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By
Derek Hansen
· #39925
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QCX rotary encoder remote button issue
#qcx
#problem
I had the same problem as soon as I made an additional duplicate button for pressing the encoder.
I had the same problem as soon as I made an additional duplicate button for pressing the encoder.
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By
Andy V. Borisenko
· #39764
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QCX rotary encoder remote button issue
#qcx
#problem
I used cheap push button switches on my QCX and experience the same. I think mine got to hot when soldering and needed to be replaced. The same issue on the key input for the uBITX. If the contract re
I used cheap push button switches on my QCX and experience the same. I think mine got to hot when soldering and needed to be replaced. The same issue on the key input for the uBITX. If the contract re
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By
Dan Pflugrath
· #39760
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QCX rotary encoder remote button issue
#qcx
#problem
Hans, Happy to send you my problematic button. Can you email an address? Thanks for being so responsive on this (and every issue!). 73, Jim G0UON
Hans, Happy to send you my problematic button. Can you email an address? Thanks for being so responsive on this (and every issue!). 73, Jim G0UON
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By
G0UON - Jim
· #39696
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QCX rotary encoder remote button issue
#qcx
#problem
Hi Dave Nice article! All the buttons in QCX use the same firmware debounce that I developed for the original Ultimate kit, which was then re-used on all subsequent kits (Ultimate2, Ultimate3/3S, VFO,
Hi Dave Nice article! All the buttons in QCX use the same firmware debounce that I developed for the original Ultimate kit, which was then re-used on all subsequent kits (Ultimate2, Ultimate3/3S, VFO,
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By
Hans Summers
· #39694
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QCX rotary encoder remote button issue
#qcx
#problem
Hans, Here is an excellent article on debouncing, by Jack Ganssle: http://www.ganssle.com/debouncing.htm He walks you through all the issues of debouncing switches in both hardware and firmware. I par
Hans, Here is an excellent article on debouncing, by Jack Ganssle: http://www.ganssle.com/debouncing.htm He walks you through all the issues of debouncing switches in both hardware and firmware. I par
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By
Dave New
· #39692
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QCX rotary encoder remote button issue
#qcx
#problem
Ok Luc, Karlis So I should make some firmware change to try to more fiercely debounce your crappy buttons. If you would send me some ones that show the symptoms, I will do it. 73 Hans G0UPL http://qrp
Ok Luc, Karlis So I should make some firmware change to try to more fiercely debounce your crappy buttons. If you would send me some ones that show the symptoms, I will do it. 73 Hans G0UPL http://qrp
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By
Hans Summers
· #39667
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QCX rotary encoder remote button issue
#qcx
#problem
Hans & others, Just to add some momentum ... I also had this problem, but didn't consider it too serious to report. But in my QCX20, using the internal buttons, never had any problem. In my QCX40 I us
Hans & others, Just to add some momentum ... I also had this problem, but didn't consider it too serious to report. But in my QCX20, using the internal buttons, never had any problem. In my QCX40 I us
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By
Luc ON7DQ
· #39666
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QCX rotary encoder remote button issue
#qcx
#problem
Just checked with a scope. The buttons are very noisy, it's not the resistance or pickup. They just generate a very quick and random train of pulses for about 1ms which coupled with the ADC capacitanc
Just checked with a scope. The buttons are very noisy, it's not the resistance or pickup. They just generate a very quick and random train of pulses for about 1ms which coupled with the ADC capacitanc
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By
Kārlis Goba
· #39652
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QCX rotary encoder remote button issue
#qcx
#problem
Hello Karlis It's a mystery, for sure. I don't know what could cause this problem - hardware or firmware... In all the thousands of QCX out there, a percentage of which (including mine) are using off-
Hello Karlis It's a mystery, for sure. I don't know what could cause this problem - hardware or firmware... In all the thousands of QCX out there, a percentage of which (including mine) are using off-
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By
Hans Summers
· #39651
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QCX rotary encoder remote button issue
#qcx
#problem
And my buttons measure 0.5-1 ohm. I cannot possibly see how 1 ohm in series with 3.3k (R45) or 1k (R44) forming a voltage divider with 10k would make a difference. 5V * (3.3k / 10k) = 1.65V on the ADC
And my buttons measure 0.5-1 ohm. I cannot possibly see how 1 ohm in series with 3.3k (R45) or 1k (R44) forming a voltage divider with 10k would make a difference. 5V * (3.3k / 10k) = 1.65V on the ADC
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By
Kārlis Goba
· #39650
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QCX rotary encoder remote button issue
#qcx
#problem
Thanks for all your replies guys. I've just measured the resistance of the button (but whilst still connected to the PCB) as ~1ohm, whereas the rotary encoder button is ~0.5ohm – a very small resistan
Thanks for all your replies guys. I've just measured the resistance of the button (but whilst still connected to the PCB) as ~1ohm, whereas the rotary encoder button is ~0.5ohm – a very small resistan
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By
G0UON - Jim
· #39638
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QCX rotary encoder remote button issue
#qcx
#problem
When one hears hoofbeats we don't think of zebras. Think horses. My first two thoughts are poor buttons, I've used them and they are terrible tot he point of removing them and finding something better
When one hears hoofbeats we don't think of zebras. Think horses. My first two thoughts are poor buttons, I've used them and they are terrible tot he point of removing them and finding something better
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By
ajparent1/KB1GMX
· #39620
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QCX rotary encoder remote button issue
#qcx
#problem
I didn't mean to imply that they could just drop a Nano into the QCX. I was simply stating the Nano as a frame of reference, since that is probably more recognizable than stating the ATMega328P. Given
I didn't mean to imply that they could just drop a Nano into the QCX. I was simply stating the Nano as a frame of reference, since that is probably more recognizable than stating the ATMega328P. Given
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By
jjpurdum
· #39607
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QCX rotary encoder remote button issue
#qcx
#problem
Hi Jack, Karlis, QCX does NOT use a Nano, and does NOT use Arduino at all :-) No blasphemy please!! Only the processor ATmega328 is the same as some popular Arduino models. There is no other similarit
Hi Jack, Karlis, QCX does NOT use a Nano, and does NOT use Arduino at all :-) No blasphemy please!! Only the processor ATmega328 is the same as some popular Arduino models. There is no other similarit
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By
Hans Summers
· #39604
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