Re: QMX (frequency) presets not working properly / maybe "dangerous"
Yes Willy, I noticed this or something very similar. When double clicking for preset whilst on 20m and selecting i.e 10m and pressing preset, the display would change to 10m but the audio was still
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Ian G4GIR
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#118306
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Re: QDX 15m RF sweep real bad
#qdx
Apologies Evan, I my head I was thinking IC4, but I wrote IC5.? So, IC4 pin 11 is at 0.854v if the QDX is on 15m.? As you are aware IC4 manages the IQ degree (Tayloe mix) splitting.? Therefore I
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timo.vandermerwe@...
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#118305
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Re: QMX stops transmitting FT8
That's good to know, Roy. Hopefully, this also works using QMX on CW.
72,
Bill, N4QA/4 in OKI, Grid FM03
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Bill, N4QA/QRP
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#118304
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QMX (frequency) presets not working properly / maybe "dangerous"
Hello QMX users,
this is not new to version 17, but was not of high importance (to me), so I did not mention earlier...
When recalling preset frequencies (e.g. you are on 20m and recall a frequency in
By
OE3WYC, Willy
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#118303
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Re: QDX 15m RF sweep real bad
#qdx
Alan,
I would have expected an impact on all bands if there was an external short.? Since only 15 meters has the issue, it points me to the mux IC3.? The QDX has over a year of operation without
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Evan Hand
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#118302
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Re: QDX 15m RF sweep real bad
#qdx
bearhawkpatrol,
Note that this is a QDX, not a QMX.? There is no display.
73
Evan
AC9TU
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Evan Hand
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#118301
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#15m #qmx #rf-sweep
#15m
#qmx
#rf-sweep
QMX
Using 17 version (and others) of software, my 15 meter rf sweep produces strange results.
If I had to guess turning *on* the *backlight* for display is the problem,? I was thinking that maybe
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stan timmerman
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#118300
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Re: QDX 15m RF sweep real bad
#qdx
Has pin 11 been checked for a path to ground like a leaky C28?
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Alan G4ZFQ
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#118299
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Re: QDX 15m RF sweep real bad
#qdx
before replacing anything try turning off display background.
I have found 15 meter lpf display to give good result when display off and screwed up when display on.
If i had to guess 15 meter is
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stan timmerman
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#118298
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Re: QDX 15m RF sweep real bad
#qdx
Timo,
I assume that you meant IC3 and not IC5.? I believe that IC3 has a problem.? The input for 15 meters is shorted, which is why you do not have a signal on 15 meters.? I suggest you replace
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Evan Hand
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#118297
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Qmx low power # help
Help! Qmx 2.0,12v,high band, vy low power on 17m/15mt 0.5watt,2 watts on 20 mtr, 1,5 w on 12/10mt,i rewind L512:10 turns and L508:9 turns, little better but low power, i put 2x 1n4007 (13.8 volts in
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Giovanni Ilari IT9XJJ <giov.ilari@...>
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#118296
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Re: QDX 15m RF sweep real bad
#qdx
Evan, I check pin 11 on IC5 and it only outputs 0.852v on 15 meters.? So, that is the problem.? Rest of the pins per band outputs 2.450v as expected.? So does this tell you that the bandpass filter
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timo.vandermerwe@...
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#118295
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Re: QMX observations
Hi Simon. Jusr FYI, there are no "default" settings for AGC yet. Meaning that if you only turn AGC on (in firmware 017) the settings are pretty much nil and won't do much if anything. For AGC to work
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Roy - KI0ER
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#118294
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QMX high SWR, low power
Sorry, gang!? I tried to find my posts and failed. So now this one.
May of you posted of bad connections on T507 and I finally checked mine out: the one that is directly hooked to the BNC antenna
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Karl
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#118293
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Re: Does AGC work on DIGI mode?
Hi
AGC is for CW and SSB
you'll need all the dynamic range to hear weak signals
In digi nodes it is better be off like NR (Hans NR? :) )
73 de muhsin TA1MHS
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Muhsin TA1MHS
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#118292
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Re: QMX receiver MDS
I did a quick test with a signal generator the other day (before the AGC was released) and I could hear a -120dBm (on some a -130dBm) signal on all bands.
73!
Simon
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Simon
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#118291
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Re: QMX FW0017 WSPR Transmit thru the night
Hi Michael, I'm not sure but you should put a time other than 0, example
frame 10 and start 2-4-6-8. Last Sunday I transmitted for 12 hours with
the QMX on 10 mt WSPR and yesterday morning it stopped
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GIUSEPPE <iw8rsb@...>
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#118290
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Re: Faulty Progrock2 - no response to ticket
#progrock2
Last week, I purchased 2 ProgRock2 kits, and I had the following results:
the first never worked, on the second I managed to set 2 frequencies that
worked correctly, but I had to power the kit at
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enrico scaramuzzi
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#118289
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Re: QMX locks up during keying practice
Thank you for all suggestions. 1st, I have firmware 014. 2nd, the dummy load is ruled out because the same thing happens through a wire dipole. Nano VNA used to check SWR which is well below 2 across
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davieskeith@...
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#118288
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Re: QMX ultimatic keying issue
Sorry, I'm realizing those images might need more content to decipher. Sent left to right, the red (dit) and blue (dah) lines indicate when each paddle is being held down.
Here's a clearer example of
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Shane
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#118287
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