Re: QMX+ no power output, low SMPS bias current
That's why I mentioned it in my original post.? The SWR is reported in the Diagnostics page on the terminal when I hit T for Transmit.? For me, it's all over the map, sometimes reporting in the 6-7
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Richard, KM4LTK
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#142700
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Re: QMX+: Broken L102
Thanks Stan. I never studied magnetics so I wasn't sure how well that little core would react. The wires are still connected and none of the windings have come undone. I'll try gluing it tomorrow.
I
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Dave WD8CIV
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#142699
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Re: QMX+: Broken L102
Yes, it should work fine if you carefully glue it back together, as long as the wires are not broken.
And if you need a new ones, I have used the 330 ones from this Amazon
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Stan Dye
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#142698
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Re: QMX and power bank PD
Great comment.Two thumbs UP.
GREG
Yahoo Mail: Search, Organize, Conquer
On Sun, Apr 6, 2025 at 6:49 PM, John Pokluda via groups.io<john.pokluda@...> wrote: Why on earth take
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Greg McCain
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#142697
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Qmx ft8 linux
I had been trying to figure out why I could not make any ft8 qso's. Seemed wsjtx was connected, got audio in my ear when transmitting. Would change radio bands. Turns out I missed when reading the
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Larryk
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#142696
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Re: QMX(+) Build experience, Poor Audio Filter Sweep/RF Filter Sweep/Image Sweep/ADC IQ test and resolution with new PCM1804
I think L403 is coming off the board tomorrow....
--
73
Karl
KI4ZUQ
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Karl
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#142695
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Re: QMX and power bank PD
I seem to have found my way into the Monty Python 'room for an argument'
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John Pokluda
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#142694
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Re: QMX and power bank PD
Muhsin is correct.? As I noted in my original reply, some 2.5mm connectors may work.? Some are designed with spring contacts, and are advertised as being compatible with 2.1mm.? And those do
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Stan Dye
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#142693
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Re: QMX+ no power output, low SMPS bias current
Be aware that the VSWR transformer winding puts a DC (not RF) short across the output BNC connector.
73, Don N2VGU
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Donald S Brant Jr
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#142692
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Re: QMX WSPR Anomaly
Thanks Stan and John. I think that's what I probably did; changed the mode from WSPR to CW by mistake during transmission. I'll try again once I am out in another park soon.
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Grant
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#142691
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Re: QMX and power bank PD
It is not a barrel, it is spring based, works with 2.1mm
73 DE muhsin TA1MHS
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Muhsin TA1MHS
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#142690
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Re: QMX+ 0watts output
First check keyer menu and check your not in practice mode and then display and in CW mode.
This mistake I have made many times!
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George Korper
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#142689
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Re: QMX and power bank PD
Hans's comment is:
5.5 x 2.1 is correct.
my comment is:
*THIS* *5.5 x 2.5mm* plug
on https://www.aliexpress.com/item/1005006380829800.html
works with *no problem!
* Both are true
you can change the
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Muhsin TA1MHS
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#142688
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Re: QMX+ no power output, low SMPS bias current
Hard to understand measuring SWR if you truely have 0 watts out... :-)
Paul -- AI7JR
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Paul - AI7JR
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#142687
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Re: QMX and power bank PD
Why on earth take the risk with an oversized barrel, even after Hans' otherwise comment?!
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John Pokluda
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#142686
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Re: QMX+ no power output, low SMPS bias current
I just finished my build sounds similar to your issue
0 watts
9.xx volts
swr jumping a little mostly around 1.2-1.5
I am going to start form the bnc and work my way back through the circuit unless I
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Mr. L
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#142685
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Re: QMX and power bank PD
Stan
*THIS* *5.5 x 2.5mm* plug
on https://www.aliexpress.com/item/1005006380829800.html
works with *no problem!*
other people are using it with their PDs and QMXs on POTA activities.
I tried to get an
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Muhsin TA1MHS
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#142684
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Re: Available Hand Mics for QMX SSB ?
All the mics I have assembled and tested with my QMX+ (which is now a LOT of mics) have had various results. I have not changed the default settings from the SSB firmware, but some elements pick me up
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Erik Larson
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#142683
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Re: Broken L512 toroid.... T37-10 (Black)
#toroid
#problem
Thanks Dave.....:)
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Bill VE4WJM
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#142682
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Re: Broken L512 toroid.... T37-10 (Black)
Thanks Ronald....they look promising...:)
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Bill VE4WJM
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#142681
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