Re: QMX if Vaudeville Still Existed
It was a standard routine done back in the Vaudeville days performed by many acts. The 3 Stooges and Abbott and Costello both have famously recorded versions. A true classic!
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No... don't worry, it will all come good in a few days!
On Mon, Feb 26, 2024 at 8:00?PM Loky < mrloky@...> wrote: Should I be worried if order 82084 shipped but 81846 is still just showing as "Complete"? I just want to make sure that mine hasn't slipped through the cracks or something, since I never got any confirmation or shipping email.
Thanks!
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Should I be worried if order 82084 shipped but 81846 is still just showing as "Complete"? I just want to make sure that mine hasn't slipped through the cracks or something, since I never got any confirmation or shipping email.
Thanks!
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Re: QMX FW 17 and side tone clicks
I'm not clear on what Simon is saying.? In my case, I have the clicks all the time, but they are much worse if there are are other signals in the receive passband.
73,
Randy, KS4L
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QMX v3 rev017 Digital Modes Receive Gain Low
When using Win 10 and 11 I see? receive gain is easily adjustable, usually 50db range with my FT991A? utilized
on Digital modes?
However with QMX and W10 &W11 computers on WSJT-x best I get is 30db and? about 35 db on JTDX max.
Question Is there an adjustment I missed in the manual or in Putty?
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Re: QMX if Vaudeville Still Existed
Thanks for posting this!? It's been AGES since I've seen it.? Is 'Niagara Falls' strictly a Three Stooges skit or have other comics done it, too?
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Hyelec PS-28A 0-15 VDC, 0-2ADC power supply plus a simple crowbar circuit for protecting all of my QRP rigs
Added to the output of the Hyelec PS-28A is a 12 VDC, 3ADC, 50w zener, the NTE 5254AK, mounted on a 3 inch x 5 inch extruded aluminum heatsink.
Well, so far, so good. I shouldn't be breaking any more of my favorite rigs PLUS, the crowbar helps to keep the shack warm!
72,
Bill, N4QA/4 in Oak Island ( OKI ), North Carolina, USA
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Re: QDX version 1 voltage regulator mod?
On 26/02/2024 14:08, Stephen Farthing G0XAR JO92ON97 wrote: I¡¯m starting to learn Micropython and thought this might be a suitable starter project. Steve, Oh, OK then my thought of a U3S defeats your purpose:-) Best of luck! 73 Alan
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Re: QMX HIGH BAND NO RF OUT AFTER ANOTHER 10 hour WSPR TRANSMISSION
OK so you have a different problem then I do.
My QMX just stops transmiting WSPR after 10 hours or so even though the display still shows the transmission when the time comes.
I have noticed this all along (with other firmware revisions).
If I turn the QMX off and on it will work fine again most likely for 10 hours in the WSPR mode.
Michael N2ZDB
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Re: QDX version 1 voltage regulator mod?
Alan,?
WSPR Transmit only.? My idea is to get the QDX to transmit WSPR on a frequency and at a time determined by a microcontroller rather than a computer. This would allow the automation of a multi band beacon without tying up a computer.?
My ¡°rough¡± design is to use a rasberry pi Pico with an I2C real time clock. The software would have a hard coded WSPR string (as shown by Andy Talbot and others) ?and a Kenwood TS480 CAT protocol emulator. The Pico would send a message to the QDX using the CAT protocol at a time, duration and ?frequency defined in the code which will use the RTC for timing purposes.?
What I don¡¯t know is if the Pico can use its USB interface for serial port communications with the QDX A raspberry pi Zero might be a better option.
Using a microcontroller would offer the possibility of switching an appropriate aerial matching circuit as well.?
I¡¯m starting to learn Micropython and thought this might be a suitable starter project.?
Er, that¡¯s it,?
Steve?
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Re: #qmx #firmware 1_00_017 AGC, S-meter, LPF sweep
#qmx
#firmware
Do you have any plans or schedule, for the release of the firmware? It's a little bit of a hassle for me to load a new one so it might be good to know in advance so I don't load the day before new one is coming...
Good job with that AGC!
Sorry I don't have any schedule for firmware releases. There are LOADS of things going on here all the time and it's hard to guess from one day to the next, when I might?have time for some coding and to prepare the next QMX release; and when it IS ready I always want to get it released as soon as possible. If I had any schedule it would either be a case of always failing to meet the schedule, or the schedule being so generous and relaxed, that I was holding back code for release, which would never be OK either.?
Anyway really the firmware update is so so easy...?
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The power reduces as the input voltage does -?
IIRC the ¡®raw¡¯ supply runs the last few op amps on RX, the backlight and the PA.
The limit is around 7V into the 5V regulator which is more like 7.5 at the input jack, ?the backlight and OP amps are still just about OK at that level ?
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SOTAbeams, a company in the UK, sells a "Milliwatter extreme" that is a 5 watt, 50 Ohm attenuator, with a choice of 10 dB or 17 dB attenuation. The device attenuates the transmission, but bypasses for reception. I have used mine for WSPR tests and it worked well for me.
This solution is not going to help with extending battery life, though.
Ian VE6IXD
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Re: QMX if Vaudeville Still Existed
Winding a toroid is more like this...
https://youtu.be/MYP1OBZfFK0?si=OF3Iifb3XMsnPK_K
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I run my qcx+ at 8v with 1 watt out for wspr. somewhere between 8 and 7 v the rig display starts to fade on tx. My mini will run down to 7v but is still doing 1 watt at that point.
I too would like to run it lower if anyone figures out how it can be done.
--
regards,
Bryan, N0LUF
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QMX if Vaudeville Still Existed
Wind a Toroid? ?Slowly I turn, step by step, inch by inch¡.
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Re: QDX version 1 voltage regulator mod?
On 26/02/2024 11:05, Alan G4ZFQ via groups.io wrote: (I also run a U3S at <100mW for 17-10m, don't think more is needed.) I did not mention my 5th QDX, a V5M for experimenting. It is on a breadboard with a 317 regulator for the PA. I was running at ~1 Watt 5 volts on the PA. I've just tried 2024-02-26 12:12:00 K9AN 3 6483 -28 EN50wc 14097012 17 G4ZFQ ~60mW with 1.2 volts. I claim the lowest power from a QDX with 4 good BS170s:-) 73 Alan G4ZFQ
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Re: 10W HF Linear Power Amplifier
#10W_PA
What should be the resistance between +12 and ground? I have open circuit which is obviously not good, and the PA is not working. Maybe I have fried a mosfet while soldering since I had a nasty solder bridge that took some heat to fix?
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Re: Really trivial bug on GPS display QMX
Hi Paul M1CNK
> I spotted a really trivial bug in the GPS display from terminal? > on the QMX in version 1_00_016 of the firmware
> The month is a month out - took the following snap on 17th Feb,? > not Jan.? The UT Date is out by a month.? Really not an issue? > but mentioned in case the code is used elsewhere.
Thanks for the feedback, I have corrected this for the next version.?
Hi Robb K5RAB:
> Another nit... if I recall, there was something about? > December.? I think it said "Dev" instead of "Dec" or something > Obviously I can't check now.? But can you check on it Hans?
I checked, and you are right, a typo! It had "DEV" instead of "DEC"... so I have fixed this for the next version too.?
73 Hans G0UPL
I spotted a really trivial bug in the GPS display from terminal on the QMX in version 1_00_016 of the firmware
The month is a month out - took the following snap on 17th Feb, not Jan.? The UT Date is out by a month.? Really not an issue but mentioned in case the code is used elsewhere.
73
Paul
M1CNK
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Morning,
That¡¯s for the information, really appreciate it. Have a great day.?
73
On Sunday, February 25, 2024, 11:58 PM, w6csn@... wrote: John, I broke a couple of the leads on the switch side of the encoders during assembly. I fixed it by replacing the missing lead with a thru-hole component cutoff (like the ones used on the display). Just be careful not to short the board end of the lead to the metal body of the encoder with a solder bridge.
The encoder leads clearly aren't designed to be bent back 180 degrees as they are in this application.
Also, I recommend to take the advice in the assembly manual to ¡°shore up¡± the center lead on the 3-lead side of the encoder using a cutoff, since it now has a longer distance to reach the board than the others.
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Burt Wizeman
Randy
Bill, N4QA/QRP
Bruce Akhurst
Vojislav [YU4HAK]