Re: Fldigi and QMX successful???
Indeed that sounds like the QMX issue I see. However it does not happen on the QDX, ONLY on the QMX.
TRY reverting to firmware 006 and see if it fixes it. If so then you have exactly what I see with
By
Cliff
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#107813
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Re: QMX Poor contrast with backlight on
I found the culprit! I had the screw securing the corner power supply board too tight, which caused the body of inductor L101 to contact pin #3 on the LCD board. Backing off on this screw just a
By
Rick NF6G
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#107812
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Re: #qdx Middle band QDX 30m - 15m
#qdx
Hello Reiner,
Did you use all the values of the low band LP filter 20/30 for HB-QDX?? Were you able to look at the harmonics from this modification?? I did not make any changes to my HB lpf and the
By
Andy W3SW
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#107811
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Re: Fldigi and QMX successful???
This looks very similar to the issue with FT8CN /g/QRPLabs/topic/100738548#107806
By
Peter OM4AEI
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#107810
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Re: QMX Failure Discovered...and new problem
Regardless, do ohm check between drains Q103 and Q104. The easy way to check this is ohm between Gate and Drain on Q103. Good is about 50k ohms. Bad is zero.
73
Karl
KI4ZUQ
By
Karl
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#107809
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Re: Fldigi and QMX successful???
Same here with linux and FLDigi.
Initial? PTT gives a very short burst of power out, then no modulation but keying continues to work.
reset QMX and above repeats.
73
Kevin K3TL
By
Kevin
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#107808
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WTB: QDX High-Band
I have one high-band QDX and need another one.? I'm looking for a QDX-Labs assembled unit, rev 5, 12 Volt, perfect working condition.
Best,
Jim
K8DDV
By
Jim Dolson
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#107807
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Re: QMX and FT8CN audio issue - strange issue
I'm away from my QMX for a few days. I wonder if someone could try reverting to firmware 1.0.6 as mentioned here /g/QRPLabs/topic/100771166?p=Created,,,20,2,0,0
The author of that
By
Mike KK7ER
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#107806
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Re: Fldigi and QMX successful???
Wow, the description of failing on the second transmission sounds suspiciously like the FT8CN issue here: /g/QRPLabs/topic/100738548
It is probably the same problem. Sounds like we
By
Mike KK7ER
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#107805
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Re: QMX #146 is toast
Thanks Hans
Ive just sent you a ticket describing the fault in more detail...think we must have been typing at the same time.
One curious thing Ive just noticed is that when testing the 4 pin
By
g4edg <G4edg@...>
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#107804
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Re: Stripping enamel insulation off of magnet wire & Rotary Magnet Wire Strippers
I came here to say zackly this. Easy Peasy and continuity.
Todd KE7AJZ
--
By
Todd Schlemmer
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#107803
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Re: I completed the assembly of the new QMX
the red dots give me a short while the blue dots are ok, I don't know what
to do.
Giuseppe iu8eun
Il Ven 18 Ago 2023, 16:15 GIUSEPPE via groups.io <iw8rsb@...>
ha scritto:
By
GIUSEPPE <iw8rsb@...>
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#107801
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Re: QMX Part Missing
Hi Jim
I should have. I wish I had. But... :-(
Anyway I got to your ticket now and my colleagues are handling sending you
the missing part, my apologies.
73 Hans
By
Hans Summers
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#107800
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Re: QMX Part Missing
OMG! Sorry Hans - I thought you had an assistant (or two) handling those things for you. OK, QRX’ing - back to using my 20 meter QCX mini for a while. ?
--
Jim / K7TXA
Eagle, ID
SKCC 10447C
BUG
By
Jim Bennett / K7TXA
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#107799
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Re: I completed the assembly of the new QMX
I tested at this moment with the DVM in the points marked in blue on the
photo and it doesn't bring any short circuit. Should I check somewhere
else that there isn't a short before powering the
By
GIUSEPPE <iw8rsb@...>
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#107798
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Re: QMX and FT8CN audio issue - strange issue
Same here too. The phone is a OnePlus 9 PRO. I tried several different audio settings, with the same result, first TX with RF out, second and subsequent periods no RF.
A friend of mine has the same
By
Colin G4ERO
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#107797
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Re: QMX Part Missing
Hello Jim
The only staff that reads the helpdesk tickets is ME... And I was on a
little family vacation, I got back to QRP Labs office yesterday (Thursday)
morning... so am still catching up on
By
Hans Summers
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#107796
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Re: QMX #146 is toast
Hi Steve
I am still catching up on emails, my apologies if this has already been
mentioned or dealt with.
The row of blocks on the LCD indicates that the LCD is powered, but it has
not received any
By
Hans Summers
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#107795
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Re: QMX Part Missing
Hans - any status update on getting this core shipped out? Haven’t heard anything from your staff about it via the help ticket I submitted a week ago.
--
Jim / K7TXA
Eagle, ID
SKCC 10447C
BUG 301
By
Jim Bennett / K7TXA
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#107794
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Re: QMX: Kit Build complete - My observations
Dear Hubert
If you have the Q103/Q104 short issue, you fry the 1N4148 diode D101. The
rest of the radio (including the zeners) is not affected.
Yes, I already added this to the assembly manual in
By
Hans Summers
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#107793
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