Can't wait! Congratulations!!!!
Mark
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All:
I've been rattling on about the "new Projects" book off-and-on for about a year. Al (AC8GY) and I are sending the book to the publisher (ARRL) on Friday, completely finished and ready to go! The projects in the book can be seen in this photo:
There are four other chapters, too, but don't result in an actual project (e.g., setting up the IDE, Intro to C, Libraries and OOP, etc.). Alas, the ARRL has stuck the new license manual in front of our book, so it appears we will miss the Dayton show. That really sucks since Al and I will be at FDIM anyway. Oh well...
Jack, W8TEE
-- Jack, W8TEE
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That was great of you to explain that! ? Once you explain it it makes good sense!
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On Dec 11, 2019, at 09:07, Skip Davis via Groups.Io < skipnc9o@...> wrote: Erwin there is a good reason for what you experienced with the active antenna the uBITX antenna input looks like a short for DC. This is because the antenna input is connected via a low pass filter to T2 of the mixer. If you measured the uBITX antenna input with a ohmmeter you will see zero ohms.? If you install a capacitor in series with the input to isolate DC on the active antenna on the uBITX side you should be fine.? On Dec 11, 2019, at 07:29, Erwin Serl¨¦ via Groups.Io <waterwin2@...> wrote:
?I have a loosely soldered uBITx on my work area connected to a 12V power supply and a headphone. Nothing properly mounted , shielded etc.
Just to hear some RF coming in as the kit arrived just some hours ago.
I works, with hum, other sounds etc. As expected. Power supply shows 166 mA current at 12V.
Then I changed the coax coming from one of my normal antenna's into a coax coming from my active antenna. A design by PE0RDT also known as mini-whip.
The electronics receive their power via the coax going out and connected to another 12V power supply.
This is a BAD idea.
I saw strange flickering on the uBITx display, going on and off, and also the same on the first 12V power supply powering the uBITx board. And I noticed smoke coming from the coax, at both sides, into the uBITx and at the power/connector box to the active antenna.
I pulled the 12V from the active antenna, pulled the (warm and melted) coax from both sides, switched of the 12V powering the uBITx board.
After connecting a normal antenna all is well again.
Possibly there is (quite) some difference between the 2 ground potentials of the 2 different supplies. I will need to measure this ;-)
Later...
When I have grounded all things great and small, and have a good metal enclosure etc.
--
PE3ES - F4VTQ - Erwin
73
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Erwin there is a good reason for what you experienced with the active antenna the uBITX antenna input looks like a short for DC. This is because the antenna input is connected via a low pass filter to T2 of the mixer. If you measured the uBITX antenna input with a ohmmeter you will see zero ohms.? If you install a capacitor in series with the input to isolate DC on the active antenna on the uBITX side you should be fine.?
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Show quoted text
On Dec 11, 2019, at 07:29, Erwin Serl¨¦ via Groups.Io <waterwin2@...> wrote:
?I have a loosely soldered uBITx on my work area connected to a 12V power supply and a headphone. Nothing properly mounted , shielded etc.
Just to hear some RF coming in as the kit arrived just some hours ago.
I works, with hum, other sounds etc. As expected. Power supply shows 166 mA current at 12V.
Then I changed the coax coming from one of my normal antenna's into a coax coming from my active antenna. A design by PE0RDT also known as mini-whip.
The electronics receive their power via the coax going out and connected to another 12V power supply.
This is a BAD idea.
I saw strange flickering on the uBITx display, going on and off, and also the same on the first 12V power supply powering the uBITx board. And I noticed smoke coming from the coax, at both sides, into the uBITx and at the power/connector box to the active antenna.
I pulled the 12V from the active antenna, pulled the (warm and melted) coax from both sides, switched of the 12V powering the uBITx board.
After connecting a normal antenna all is well again.
Possibly there is (quite) some difference between the 2 ground potentials of the 2 different supplies. I will need to measure this ;-)
Later...
When I have grounded all things great and small, and have a good metal enclosure etc.
--
PE3ES - F4VTQ - Erwin
73
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Hello,
Just got my ubitx v5, files section of?groups.io is a big mess,
1- where i can find document or list of?enhancement and modification for this kit (agc, mic compressor ...) ?
2- where can i find firmware with smeter fnc like this one ?
thx you
73' !
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While on this topic:?? I hooked up my V5 with CEC firmware to the PC, running WSJT-X and it seems that whenever the program picks a frequency on 40 meters (the only band I tried, admittedly, as I was there at the time) the software wants to choose LSB.?? As we seemingly all run data on USB, is this a function of WSJTX??? My question is - does anyone else experience this with that software??? Does anyone else run that software into these radios?
Tnx,
Ted
K3RTA
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Re: STM32F769-FT8-Transceiver
I'm putting one together from Charley's instructions.? I should have results soon..
Your mileage may vary,
Jim
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I have a loosely soldered uBITx on my work area connected to a 12V power supply and a headphone. Nothing properly mounted , shielded etc.
Just to hear some RF coming in as the kit arrived just some hours ago.
I works, with hum, other sounds etc. As expected. Power supply shows 166 mA current at 12V.
Then I changed the coax coming from one of my normal antenna's into a coax coming from my active antenna. A design by PE0RDT also known as mini-whip.
The electronics receive their power via the coax going out and connected to another 12V power supply.
This is a BAD idea.
I saw strange flickering on the uBITx display, going on and off, and also the same on the first 12V power supply powering the uBITx board. And I noticed smoke coming from the coax, at both sides, into the uBITx and at the power/connector box to the active antenna.
I pulled the 12V from the active antenna, pulled the (warm and melted) coax from both sides, switched of the 12V powering the uBITx board.
After connecting a normal antenna all is well again.
Possibly there is (quite) some difference between the 2 ground potentials of the 2 different supplies. I will need to measure this ;-)
Later...
When I have grounded all things great and small, and have a good metal enclosure etc.
--
PE3ES - F4VTQ - Erwin
73
|
Re: 0dBm and -60dBm calibration
Smart as always!
--
PE3ES - F4VTQ - Erwin
73
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Re: STM32F769-FT8-Transceiver
Hi Charley, thanks for posting this.
I just wrote an article on the STM32F429 Development board as used by Alberto I2PHD for an ARM Radio for LW/MW. It is in the FUNKAMATEUR December 2019 issue. I had to use older versions of the Keil development setup as the original software is from 2015.
Do you expect a lot of issues (library changes etc) to be able to use your development on the board I have?
--
PE3ES - F4VTQ - Erwin
73
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Re: ubitx v4 distortion/ vibration in audio out
Have you tried adjusting the BFO frequency? Often that is the problem with poor or distorted audio.
=Vic=
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Hi Arv,
I've just got my Ubitx to to talk to GRIG, here is command that worked for me
grig --model=120 --rig-file=/dev/ttyUSB0 --speed=38400
also this page appears at the top of my Google search when looking for UBITX and GRIG? so this may be useful for someone else/future me when I have forgotten the options I need to use to make GRIG work...
Cheers,
Matt H
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Re: problem loading nextion firmware model mismatch
The 2.8 size is likely not the problem. You need to have the display driver (e.g., ILI9341) on the display match the library used to process the code. Check to see if the display you ordered matches the library being used by the software.
Jack, W8TEE
On Tuesday, December 10, 2019, 4:41:34 PM EST, Morris Ford <morrishford@...> wrote:
Trying to load nextion firmware on a 2.8 lcd. The load is saying that the model in the firmware and the model of the lcd don't match. Is that a known problem? I have double checked that I have the right firmware and the device is truly a 2.8. The difference between the two is that the firmware model number has R at the end and the device does not.?
Any ideas.
Thanks
Morris
K7LSV
-- Jack, W8TEE
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Re: Installing BCI and Kit-Projects AGC
Me and David over at kit-projects try our best to stand by our stuff, we do the best we can to make sure its built right so it works out of the box. We would feel terrible selling it here otherwise. Sadly this kit sometimes just fails due to who knows what and does the above, according to David its been 3 times total. Either a dead 7002 a bad solder joint on a capacitor, we don't know. more importantly we make it right by the customer at that point! And it shows we have sold quite a large sum of agcs. Over 400 of them by our count!
Another example of why I like this forum. Tim is willing to accept this is a defect, and Joel is working hard to prove It is not! I enjoyed following your combined troubleshooting techniques. Thanks. Sent from Mick's iPad 73 VA3EPM ? No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!
Tim Keller
--
Tim Keller - KE2GKB
--
Tim Keller - KE2GKB
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Re: Installing BCI and Kit-Projects AGC
Another example of why I like this forum. Tim is willing to accept this is a defect, and Joel is working hard to prove It is not! I enjoyed following your combined troubleshooting techniques. Thanks. Sent from Mick's iPad 73 VA3EPM
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On Dec 10, 2019, at 5:48 PM, KE2GKB via Groups.Io <tkeller@...> wrote:
? No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!
Tim Keller
--
Tim Keller - KE2GKB
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Re: Installing BCI and Kit-Projects AGC
No worries and no need to send it back :) not the easiest modules to test with out putting it in a radio sadly! Again thanks for trying to help us figure it out!
Tim Keller
--
Tim Keller - KE2GKB
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Re: Installing BCI and Kit-Projects AGC
Tim,
I'm afraid I cant perform anymore tests as I removed the board from my radio, but I had made a similar test only without removing the V lead and it made no difference. By the way, my radio is now working great without the module as it was before. I can mail this one back to you if you want to trouble shoot it. I did test the two diodes and they are fine.
Joel
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Re: problem loading nextion firmware model mismatch
Update: I had a 3.2 display here so I just loaded that one and it worked right off. I'll just get a 3.2 front piece and forget the 2.8. It's already on the way back to Amazon. Looks like I got someone's scam return.
Morris? K7LSV
Morris,
I had the same problem with my 2.8 Nextion. Try?
"UBITX_Nextion_GUI_V3\ubitx_28.TFT".
?Make sure it is a TFT file and not an HMI file. There are others?that will work but try this one first.
Have?Fun,
Paul KD9JYV
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Re: Installing BCI and Kit-Projects AGC
I'm afraid I'm at a loss joel,
I want to ask you to short the RFIN and Out with a jumper, Remove the Volume wire and put the switch in the off position just to make sure that its the agc (effectively/permanently remove it from the circuit) If the radio springs back to life we can work on getting you a new one agc!
We do want to say apologies for the inconvenience with over 400 units sold we know of 3 other accounts where for some-reason it "just did not work"
Tim Keller
On Tue, Dec 10, 2019 at 5:13 PM Joel Caulkins/N6ALT < caulktel@...> wrote: Correct voltages are present, 5V is 5.23V
Joel
--
Tim Keller - KE2GKB
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Re: Installing BCI and Kit-Projects AGC
Correct voltages are present, 5V is 5.23V
Joel
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Skip Davis
Ted
Vic WA4THR
Mick
Joel Caulkins/N6ALT