Re: Clear SWR Protection "S" through the USB port?
Can do it remotely using the terminal mode.? I just tried the following steps - may not need all of the steps:
- Exit WSJT-X?
- Enter terminal mode
- Select: Hardware-test/SWR-Sweep ( Should be crazy data since no RF)
- Select: Configurate/Protection/SWR (select Disable)
- Select: Hardware-test/SWR-Sweep ( Should be good data since there is RF)
- Select: Configurate/Protection/SWR (select Enable)
- Exit terminal
- Enter WSJT-X?
- Use PSK reporter to verify transmit.
It would be good to reset the SWR protection on a band change.
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That was on Ten meters FT8. Ten is wide-open today !
72,
Bill, N4QA/QRP
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Re: QMX+ Success, with One Nit Easily Resolved
Yeah, some lessons come the hard way. Like I said in my original post, I know better, frankly, but there you go!?
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Just had another really fun POTA activation yesterday with it, and am looking forward to lots more to come.
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Re: Clear SWR Protection "S" through the USB port?
On Sun, Oct 13, 2024 at 06:11 AM, Sam Hanie wrote:
with the rig in another room, I would like to be able to reset the "S" remotely.
Great suggestion!? The "S" is a showstopper for remote operation.? Perhaps there will be a way to do it once Hans release his BASIC programmer interface.
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73, Mike KK7ER
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Re: Clear SWR Protection "S" through the USB port?
Sam
Be extremely careful using the auto tuner.? When it is seeking a match SWR can transiently exceed 10:1.? This causes high voltage at the BS170 PA transistors that does substantially exceed the manufacturers rating.? I recently recorded these transients at the PA transistors and posted the results.?
It is absolutely necessary to tune with an ATU a no more than 50% PA voltage or use an attenuator between the ATU and QMX while tuning (I use a QRPoMeter).
?
Notes:? From my testing it is high PA voltage that kills the BS170s and not temperature.?
? ? ? ? ? ? Also the ATU transient spikes are worse at 160m and 80m.
? ? ? ? ? ? A also operate the QMX remotely and am very careful to ensure I don't get ATU spikes.
?
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QRP-Labs QMX-PLUS at five watts to a forty meters long end-fed wire in the New River Valley of Virginia. Tnx QSO, Al, F5MYH . 72.
Bill, N4QA/QRP
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Clear SWR Protection "S" through the USB port?
I have QMX+ bundled with a mini PC and I connect via remote desktop to run WSJT-X, etc.
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I have been using this setup with my QMX successfully for a few months.? It works well with my ATU-10 and Ultimax100 antenna .
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The QMX+ however, has gone into SWR Protection a few times.? And with the rig in another room, I would like to be able to reset the "S" remotely.
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Through the terminal connection, perhaps?
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Is that possible?
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Any info/advice appreciated .
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Tanks,
Sam Hanie, AC4OW
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Re: QDX - Windows 10 help!
hi
on windows pls also try turning off the bluetooth, some times it messes up the COM ports
73 DE muhsin TA1MHS
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Re: QDX rev 6 image freq problem
On Sat, Oct 12, 2024 at 06:12 PM, Jerry Gaffke wrote:
And be aware those binocular microscopes can tip over when swung to the side.
Not with this stand, the reach of which lets me cover most of my assembly bench. ?
73, Don N2VGU
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Re: QDX - Windows 10 help!
Thanks Alan. I shall try that.
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73s
Roger G3XBM
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Re: QDX - Windows 10 help!
On 13/10/2024 09:24, Roger Lapthorn via groups.io wrote: There is a known issue with Windows (not Linux) with the QDX not being recognised.. Roger, The known issue is that the QDX has to be power-cycled. When I reboot W10 I cycle the power of my permanently connected QDXs, then they are recognised. If you remove the USB plug then a QDX power cycle is required to use it again. 73 Alan G4ZFQ
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In the assembly_2_00.pdf manual I can read in the Para 4.Dev Kit option "if you wish to
make connections between the main PCB and Dev PCB (pin headers are available from the QRP
Labs shop spare parts section)."
I searched the shop.qrp-labs.com page "spare parts" and did not find these pin headers. Where can they be found?
73 - Pierre - FK8IH
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I have not used my QDX for some time and I have forgotten the sequence in which things have to be connected. Please can someone remind me? It worked in the past so I know the QDX is fine.
There is a known issue with Windows (not Linux) with the QDX not being recognised..
After struggling?for ages, I have given up.
I am sure this has been on before, but there are so many posts.
Cheers
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Re: #qmx #ssb CESSB update (Controlled Envelope SSB)
#qmx
#ssb
On Fri, Oct 11, 2024 at 09:52 PM, Marek SP9TKW wrote:
IMO there is only question remaining Thanks Giving or Xmas.?
I don¡¯t know about you guys but I check this forum twice a day. lol?
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TG is too soon. Xmass, I bet.
Me - once a day only.
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Re: Automatic Antenna Tuner, Internal Battery with a charger and built-in speaker for QMX+. Open Source.
Another update.
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Completely finished the Bill of Materials.
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Now focused on writing assembly instructions pdf.
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The frontpage readme file of the GitHub repository is also pretty much done and has a reference to the PDF of the full assembly instructions that I will keep updating until done.
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--
73,
Sardar (AC8L, 4K6SA, VA3DUA).
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Re: QDX rev 6 image freq problem
Yes. I have a ring illuminator attached to my 10X power binocular microscope.
The bottom part of the microscope is rectangular and the illuminator has three screws to fix it into place, so I attached three, small, stick-on rubber feet. They provide a solid mount for the illuminator.
Have been getting by with a bright desk lamp or two since the low end
AmScope just has a dim gooseneck light that wasn't worth messing with.
But on Don's hint I did a web search for "ring illuminator", there's lots of
aftermarket devices to choose from?and some are quite inexpensive.
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Other hints:
Put a plastic baggie over the eyepieces when not in use to keep the dust off.?
And be aware those binocular microscopes can tip over when swung to the side.
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On Sat, Oct 12, 2024 at 01:22 PM, Donald S Brant Jr wrote:
I use an LED ring illuminator
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Re: QDX rev 6 image freq problem
Have been getting by with a bright desk lamp or two since the low end
AmScope just has a dim gooseneck light that wasn't worth messing with.
But on Don's hint I did a web search for "ring illuminator", there's lots of
aftermarket devices to choose from?and some are quite inexpensive.
?
Other hints:
Put a plastic baggie over the eyepieces when not in use to keep the dust off.?
And be aware those binocular microscopes can tip over when swung to the side.
?
On Sat, Oct 12, 2024 at 01:22 PM, Donald S Brant Jr wrote:
I use an LED ring illuminator
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The final "R" of? Si5351A-B-GTR just means it was packaged on a reel instead of in a tube,
otherwise identical to the Si5351A-B-GT
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I'm curious why Bruce says "¶Ù´Ç²Ô¡¯³Ù get the pre programmed ones"
Would expect preprogrammed ones to work fine so long as the firmware
does a complete initialization?writing to all registers via I2C.?
But perhaps the firmware does not initialize all registers, assuming a default power up state.
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Jerry, KE7ER
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On Sat, Oct 12, 2024 at 12:20 PM, Bruce Akhurst wrote:
Confirm this is the one.
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?
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? ¶Ù´Ç²Ô¡¯³Ù get the pre programmed ones?
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Re: QDX rev 6 image freq problem
On Sat, Oct 12, 2024 at 10:32 AM, Jerry Gaffke wrote:
The USB microscopes can be pretty good, but binocular vision helps more than you might think.
I agree 1000%, good binocular magnification (it doesn't have to be a lot, I usually end up at 8X or so) and LOTS of light, preferable coaxial with the microscope objectives, is the way to go.? I use an LED ring illuminator and 2 LED desk lamps to thoroughly illuminate my work area.? I find USB 'scopes highly lacking.
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Good #7SA tweezers (antimagnetic is important as many SMT components are magnetic due to nickel barrier plating) are a must; buy at least 3 pair as you need two and you will inevitably drop one, causing the "elf shoes" phenomenon.
73, Don N2VGU
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Re: Automatic Antenna Tuner, Internal Battery with a charger and built-in speaker for QMX+. Open Source.
Ivica,
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in addition to what Cal wrote - if you attach an external power amplifier - you must disable radio¡¯s built-in ATU.
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--
73,
Sardar ( AC8L),
Yes!
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Case in point: I don't use a PA with my QRP rigs but I must remember to hit the button on my LDG AT-1000ProII ATU to put it into bypass whenever I wish to use the full output of my MercuryIIIS PA with my QRO rigs (and I must make sure I'm transmitting on a frequency / antenna that doesn't require the ATU). The LDG can handle full MercuryIIIS ouptput in bypass but not when it's enabled.
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My worry that I might fry the LDG with forgetfulness has me shopping for a Palstar AT2K manual tuner. The protection in the MercIIIS is pretty impressive but, if in the middle of a transmission when the LDG failed, it might not forgive my transgression either. The ATU is not the only hardware at stake!
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73,
Cal -- AD8Q
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Bill, N4QA/QRP
Sam Hanie
Donald S Brant Jr
Pierre - FK8IH