Hi Matt, the?switching LSB/USB seems to work only via CAT. /g/QRPLabs/message/116292I suppose it is on the Hans's ASAP table to solve. -- 73 Bojan S53DZ
|
A new chat has been created:
Hi,
i?ve got a good working QMX , 80m-20m. CW wonderful, digimodi perfect :).
Receiving HAM Stations in SSB on the 20m band works good. I can listen to the conversation. But trying to do that on the low bands, i can?t really listen. Wrong Sideband. Even trying to change the Sideband in? the system config menue Sideband into lsb doesn?t work. Does anybody have any idea ? or is this part not realized yet ?
There is no change, when I try to change the sideband in the menue.
Is there a timetable, when the transmitting part in SSB will be implemented ?
73 de Matt, DL1SER
By:
mweidle@... <mweidle@...>
View/Join This Chat
Do not reply to this message to post to the chat. You can participate in chats only through the group's website.
|
Re: QMX 10-20m LPF0 problem?
Hi again! And thanks Tobias! I agree with Jo. I think that the QMX:s we have probably are "fundamentally right" which can be proven by working a lot of QSO:s and enjoy. The proof of the pudding is in the eating. That doesn't mean that we can't be nerdy and go down in the nitty-gritty details of every millwatt and dB. That's part of the fun and a learning experience for sure. My next move will be to tamper with my tinySA and learn how to measure the spectrum at the 30M band, which I added instead of 11M. Good luck!
|
Re: QMX 10-20m LPF0 problem?
Hi Tobias and thanks for chipping in! I created this topic hoping to get an answer to the same question you have; something fundamental wrong // or not? My sweeps and numbers looks very similar to yours. There seems to be some consistancy among us (three) with a general pattern of power output profile, limitations in sideband rejection on 15M&17M (around 2000Hz), and both 20m and 10m sensitivity not being the best compared to the other bands available. Given this pattern, my assumption is that it concerns the design more than a problem in a build. As Anders mentioned, toroid winding style and component variability plays a part too. My conclusion after seeing both yours and Anders feedback; I think my QMX is working fine in all practical manners and I need to stop looking at the diagnostics, and start making QSOs.?
PS; for some reason I can't see your images attached.
73s
Jo
|
Re: Next QMX Firmware Version - What to Expect?
Hi Jim
I do my best OM, I really work long hours at all this - but there are a lot of things on; The priorities for firmware are currently fixing the CW keying glitches, and adding AGC. If I had a date, I'd already have the firmware ready, and I'd already have released it... so all I can say is "as soon as possible" though I understand that is not an ideal answer, sorry.?
On Sun, Jan 7, 2024 at 8:20?PM Jim Bennett / K7TXA via <w6jhb= [email protected]> wrote: Hans - can you give us a hint as to what changes will be coming with the next version of the QMX firmware? And maybe a target date? :-)
--
Jim / K7TXA
Eagle, ID
SKCC 10447C
BUG 301
|
Re: QDX Highband , receive range
Thanks for your replys.?
The only thing inactually touched was swapping 11m for 30m in the config. Rx is fine downnton40m. Will checknlower band edge of 20m :-) and report :-)
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
You've swapped the encoders and the problem persists.?
There is no firmware issue that could cause?this.?
The conclusion must be, some kind of connection issue somewhere between the microcontroller pins and the rotary encoder pins. The most likely is an intermittent connection due to a soldering problem at the 2x4-pin connector between the main board and the controls board. Most likely - but not the ONLY possibility.?
Have you done a Factory Reset yet? What version of firmware are
you running?
(If you have done the reset, don't think there's any point in
doing it again...)
Paul
On 1/7/24 18:49, k9pz wrote:
The original problem has resurfaced. It did not move with the
encoders. I put the left encoder in place of the right, and right
in place of the left. After this, initially turning the left
encoder either direction was unresponsive. This behavior was
duplicated in the diagnostic terminal.
After a power cycle the original problem of the left encoder only
increasing volume has resurfaced, the diagnostic terminal agrees,
and this is after swapping encoders.
No new encoders, just the two that came with the kit. All other
buttons and encoder functions work fine. Great rx and tx.
73 k9pz
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
Have you done a Factory Reset yet? What version of firmware are
you running?
(If you have done the reset, don't think there's any point in
doing it again...)
Paul
On 1/7/24 18:49, k9pz wrote:
toggle quoted message
Show quoted text
The original problem has resurfaced. It did not move with the
encoders. I put the left encoder in place of the right, and right
in place of the left. After this, initially turning the left
encoder either direction was unresponsive. This behavior was
duplicated in the diagnostic terminal.
After a power cycle the original problem of the left encoder only
increasing volume has resurfaced, the diagnostic terminal agrees,
and this is after swapping encoders.
No new encoders, just the two that came with the kit. All other
buttons and encoder functions work fine. Great rx and tx.
73 k9pz
|
Re: QMX 10-20m LPF0 problem?
|
Re: small fix: QDX manual_1_19.pdf
Hi Muhsin
Please see previous reply, I already explained this.?
What works best in practice and what is predicted by theory is not always exactly the same. Calculation, modeling, simulation is all one thing. But in the end final values often need to be tweaked by trial and error. This always needs to be remembered throughout the design process.?
In this case, rounding down or up is according to what we know works best from experience (during optimization of the assembled radios).?
73 Hans G0UPL
T37 AL is 1.5
on the table it takes 1.637 not consitent with the other Ls
73
muhsin TA1MHS
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
The original problem has resurfaced. It did not move with the encoders. I put the left encoder in place of the right, and right in place of the left. After this, initially turning the left encoder either direction was unresponsive. This behavior was duplicated in the diagnostic terminal.
After a power cycle the original problem of the left encoder only increasing volume has resurfaced, the diagnostic terminal agrees, and this is after swapping encoders.
No new encoders, just the two that came with the kit. All other buttons and encoder functions work fine. Great rx and tx.
73 k9pz
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
Hmmm... That it moves with the encoder, is rather
incriminating of the encoder...
Did you say that you've replaced the encoder once?
You might check that the switches on the encoder are opening and
closing properly.
Paul
On 1/7/24 18:19, k9pz wrote:
Paul - the CCW seems to have resolved itsself. Maybe I was seeing
ghosts.
I swapped the encoders and as before the right side functions
correctly. Now turning the left side is unresponsive in either
direction. Pushing down on it works as before, this was verified
in the terminal diagnostics. There are no shorts to the encoder
body.
I am at a loss now.
Seems as Nino stated a firmware or controls board issue. At least
i can't accidently crank the volume too high now.
I will give it another very fine look over. Odd that the problem
changed slightly by swapping the encoders.
Cest la vie
73 k9pz
--
Paul -- AI7JR
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
Paul - the CCW seems to have resolved itsself. Maybe I was seeing ghosts.
I swapped the encoders and as before the right side functions correctly. Now turning the left side is unresponsive in either direction. Pushing down on it works as before, this was verified in the terminal diagnostics. There are no shorts to the encoder body.
I am at a loss now.
Seems as Nino stated a firmware or controls board issue. At least i can't accidently crank the volume too high now.
I will give it another very fine look over. Odd that the problem changed slightly by swapping the encoders.
Cest la vie
73 k9pz
|
Put the keyer into straight mode.? Then simply hold down the paddle.
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
Hi Nino, Brandon--
Some random responses on my part:
- I too have noticed that, when the frequency goes too far up or
down, it gets "stuck" and requires a power cycle. Reported to
Hans.
- SSB hasn't been implemented yet, so it might not honor the
sideband. BUT I know that I've been able to set the sideband for
LSB on 80 (version 12 firmware)... So there may be something
else at play, here.
- Haven't noticed what you (Brandon) reported about first CCW
click, but maybe?
Nino-- Given that the right encoder works well for "everyone" else,
it's hard to see how that could be a firmware problem...
There are several functions attached to the right encoder.
Turning it should change the frequency. Clicking the button should
invoke rate or select message. Do any of those functions work?
Looks to me like the MPU is sensing which switch is activated by
sensing the resistance of the connection (JP302-6 to ground). You
don't mention how the right hand encoder is
malfunctioning--I'd suggest checking for solder bridges between
pins on JP302. Consider that the problem with the right hand
button and the right hand encoder might be somehow connected...
Wishing you luck!
73, Paul -- AI7JR
On 1/7/24 15:52, tautog54 wrote:
Hi Brandon,
Today I replaced the right encoder and the situation is still the
same. In my opinion, it is not a hardware problem. Perhaps there
should be something wrong with the board or the firmware. I'm at a
dead point then I prefer to leave it until I know more or maybe a
new firmware release will solve the problem.
Best 73 de I1MDQ Nino
--
Paul -- AI7JR
|
Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build
Hi Brandon,
Today I replaced the right encoder and the situation is still the same. In my opinion, it is not a hardware problem. Perhaps there should be something wrong with the board or the firmware. I'm at a dead point then I prefer to leave it until I know more or maybe a new firmware release will solve the problem.
Best 73 de I1MDQ Nino
|
Version 12 of what?
72 / 73,
Bill, N4QA/4 in OKI; previously WB4HIO and, before that, WN4BJC
|
Using version 12.
Is there a way to lock into transmit so I can measure output and/or activate a QRP tuner?
Thanks and ¡®73
Jim WX8J
|
Re: QMX- High Power Output at 12 Volts?
Sounds good to me, too! JZ
On Sun, Jan 7, 2024, 4:56?PM Sandy < mac3iii@...> wrote:
Hey Mike - I wouldn't worry too much about those readings - A lot
of people have had similar numbers, see here.
Also check out the It should be banned series of messages by
searching the word "banned" in the search box. TLDR: I got on my
first use of RWTST:
This
is the third QMX I have built, each design improvement
outperforming the last. Now on first powerup and testing RWTST
on 12.00 volts I get the following output into a dummy load as
per putty diagnostics:
40
meters 5.3 watts
30
meters 4.9 watts
20
meters 7.0 watts (amps went from .093 resting to 1.01 transmit)
80
meters 5.6 watts
60
meters 6.1 watts?
Per Hans advice I slightly spread the coils on L513 and got 20
meters down to between 6 and 7 watts. I have had over a thousand
POTA contacts using this rig without problems.
Sandy KB3EOF
|
Re: QMX- High Power Output at 12 Volts?
Hey Mike - I wouldn't worry too much about those readings - A lot
of people have had similar numbers, see here.
Also check out the It should be banned series of messages by
searching the word "banned" in the search box. TLDR: I got on my
first use of RWTST:
This
is the third QMX I have built, each design improvement
outperforming the last. Now on first powerup and testing RWTST
on 12.00 volts I get the following output into a dummy load as
per putty diagnostics:
40
meters 5.3 watts
30
meters 4.9 watts
20
meters 7.0 watts (amps went from .093 resting to 1.01 transmit)
80
meters 5.6 watts
60
meters 6.1 watts?
Per Hans advice I slightly spread the coils on L513 and got 20
meters down to between 6 and 7 watts. I have had over a thousand
POTA contacts using this rig without problems.
Sandy KB3EOF
|
Paul - AI7JR
Bill, N4QA/QRP