On 3/23/2020 2:40 AM, Gordon Gibby
wrote:
Ashar & Jack ¡ª you guys please do software. ?make it simple!!!
? be finished by Wednesday morning. ?when I wake up for real at
1000 zulu I will compile the medical ?requirements.
I wish to pass this effort in England along to those who are on
the "Ventilator Project" for perhaps inspiration. I note that they
are using arduinos as the controller as well, but are using an
ambu bag housed in a inside a
rigid Perspex [Plexiglass] box for the pressure. They
are using compressed air to "squeeze" the ambu bag.
A fuller description may be found here:?
Best of luck with your project as well. There is a lot of
"McGvering" going on and it is all very much appreciated!
73 de N4GIX - Fr. Bill+
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
If you just want to try it out, bypass the bandpass filter and change the vfo to get the frequency coverage desired. take a look at this. The web page has some tests with a network analyzer and the video shows some actual on the air test.
It's using a HP generator as the vfo and a IFR as a signal source on other bands. At the beginning of the video the received signal is off of a dipole on 20 meters. The board was designed without a vfo or a bandpass filter which alloys it to be used on any frequency by supplying the vfo and an external bandpass filter for the desired frequency.
This isn't a how-to-do for you application but it shows basically what you want to do.
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Still "tuned in " Chris. One step at a time :-)
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Anytime I try to put a condenser element into any other microphone, I'll find some soft foam padding in a sheet or in a block that I can cut into a neat piece to fill the inside the subject microphone head.? The outside edge of the foam can be trimmed until the condenser element fits without making any kind of physical contact with any covers or sides or whatever.
One then simply needs to wire the microphone element consistent with the uBitx wiring plan, and attach the push-to-talk lever to the push-to-talk circuitry of the uBitx as well.? ?There are some cheap and easy-to-wire-in compressor and preamp boards out there, that would give the big-mike sound (or at least let you hold the whole mike stand a short distance away from your face).??
Ted K3RTA
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
It's the Version 3b with vfo.? I've got most of the parts for the Digital VFO unit for it as well, but missed some (I purchased the kit unfinished at a hamfest and put it together - discovered parts were missing) and so it's just the old stock analog unit.? Drifts for a while, but settles right down.?
I'm not sure how much a Raduino would cost, but that's a possibility if it's cheap enough (VERY limited budget here).? I don't need anything fancy at all - I'm good at hacking code, but a bit rusty on programming.? I get something I can hack into, usually I'm chopping out a lot of bells and whistles and cleaning things up after.?
Good to know about the cans being the same - I can look them up.? I'll take a look at the info on the uBitx architecture too.? (I just hope that if I have to change the crystal filter, I've got some that will work!)? I do have a couple of good SSB filters scrapped out of a couple of defunct radios (SSB cb's and old rig I was given that had been given a coke-type treatment).? Maybe one of those would work too... if needed.
Yeah... dealing with the 'You gotta learn" or "Buy a new rig!" can be a real headaches sometimes.? People do make assumptions based on their own lives - and assumptions do turn into prejudices or "You've got to do things MY way!"? Elmering and helping others requires that you be aware of those assumptions - and try to avoid them (that's an aspect of listening - a necessary part of teaching and helping).? There are a lot of people who assume that you want basic information that's already available (if it exists), that you're just being lazy.
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
Robert sorry to see that negative post except I kind of saw it coming. Anyway the architecture of the BITX20 and the uBITX are very similar so replacing the filter elements for 20 meters with the 10 meter one of the uBITX should work. Now the other question I have is your BITX20 using the Radrino or the on board VFO? If your using the Radrino you can go into the setup and set the band for 10 meters I believe it is already part of the firmware. I have a BITX40 here except it is stored away, I might have to dig it out to check this feature out.?
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On Mar 28, 2020, at 12:27, Robert D. Bowers <n4fbz@...> wrote:
?I did more searching today.? It seems that people have done this conversion, but again, NO DATA AVAILABLE (such as the proper cans for filtering and so on).? My main radio is unreliable transmitting at low power levels (I'm working on a cure for that) and it caused real problems for the RF sense part of my transverter - .? Having a dedicated 10w 10m radio (even 5w pep) would be the ideal situation - plus I'd be able to use the old radio for regular HF (digital, maybe some voice) and have separate 10m - 2m - 432 capability!
NOTE:? Please don't tell me to go read or learn.? I build stuff and do ham radio FOR RELAXATION, NOT "LEARNING".? My job entails reading highly technical reports, in a sense I'm reading around two highly technical books (in text length) a day (and pulling metadata out of the reports).? I'm also a doctoral candidate, specializing in using the so-called 'hard sciences' to discover cultural patterns in archaeological contexts - working with portable X-ray Fluorescence and optical spectroscopy (as well as precision GPS work, mapping, aerial photography analysis, and so on).? I SPEND MOST OF MY TIME "LEARNING", and like "doing" now and then - for relaxation.? Since I spend so much time doing pure research and study, please don't insult me with "gotta learn".? (I'm saying this because of past experiences on ham radio related message boards.)
If anyone has information (besides "research it yourself" or "buy new" - the usual insults), please let me know.? I really would like to put that old BitX20 on the air - on 10m!
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Glad that we could help.
Do not feel alone, all of us have done this sort of thing.? That is where having another person review helps catch the simple mistakes that so often get us.
For me, hunting down the issue is the fun part? The operation is just the verification that the hunt was successful!? For me, that includes the hunt for someone else's issue :-)
Enjoy the rig and the hunt!
73
Evan
AC9TU
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Farhan sometimes offers suggestions. He's a great guy and proud of his products.?
On Fri, Mar 27, 2020, 8:02 PM Edward Reynolds via Groups.Io <n7snt= [email protected]> wrote: Doug I¡¯d go thru the setup on the receive side, BFO and SSB, ?most likely you are receiving dead air between bands, that¡¯s the only thing that comes to mind. Check some of the V5 setup files on the HF Signals site, mine is setup and working on receive and transmit just fine. Good luck Ed N7SNT? ?Hi
I have a question I hope someone can help me with. I assembled a Ubitx V.5, and everything seems to work
except no receive.
It transmits cw and? mic. If I hook another transceiver to another antenna, it hears it with 1 watt being transmitted.
When I hook the Ubitx to a receive antenna, it sounds like a receiver with the antenna disconnected.
I can hear some birdies, and some are loud. But, no signals even on 20 meters FT8 frequency.
I checked with an ohm meter from the coax center connector to TP1 and have continuity
I do not have a scope, or RF signal generator or a frequency counter right now.
I know that limits my troubleshooting ability greatly. I used to have all that equipment, but sold it years ago.
I could possibly borrow the equipment.... Any help would be appreciated.... Maybe something simple.
Thanks in advance
Doug.
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Hi Evan
When you asked about the code, I did have KD8CEC code on it. I put it on because the stock code was not working.
So I went to install the stock code and saw at the bottom that there was a pdf labeled Manuel V.3... I said Oh No!!!
Sure enough I had downloaded V.3 stock code instead of V.5...Duh !!!. I don't know how I did that but when I installed the right
code the receiver came to life..... I was afraid it would come to something like this. Hi Hi..
Thank you and everyone else who tried helping me.... I do appreciate it very much!!!
73's to everyone!!!
Doug
WA3ZHG
PS. I guess I should identify myself with my call. Hi Hi
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Ther is a factory reset feature on the KD8CEC (referred to as CEC) firmware.? I do not know if there is one on the firmware from HFSignals.? I very quickly replaced the stock firmware with the KD8CEC firmware as soon as I verified the operation of the uBiTx.
With the CEC firmware it is easy to use the Memory Manager program to adjust and save them to a file.? That is now how I do any experimentation with settings changes.
The best course to take with the uBiTx rigs is to get the stock rig running.? Then start making changes, one at a time where possible.? I learned this the hard way with my second v4 rig.? Though that I could just go and make all of the mods right away.? Wound up going back to stock to verify operation and then applied the mods.
A point that most do not know about upgrading: The calibrations are stored in the Nano EEPROM, so changing the firmware does not change the calibration values.? This can manifest in two ways:
1 - Replacing the Nano means you need to recalibrate, even though the values would be the same as they adjust for the Si5351 crystal and the SSB Crystal filter that are not on the Nano.
2 - Reflashing the firmware does not take all the settings back to the factory settings.? The EEPROM values are not changed.
So the practice of saving the supplied Nano that is programmed means you need to recalibrate.? If you do not want to go back, then use the same Nano, as you can always download and flash the code from the web.
What we need to know now before any more recommendations is what is the firmware that is installed.? If my memory serves, it should come up during the boot process.
I hope I did not confuse you in the long answer.
73
Evan
AC9TU
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
Coverting bitx3b for example, should not be difficult. They use lc bfo and crystal bfo. Whrete they used dds vfo, it is easier. Now let us comebto the front end bpf. Itvhas to be re-designed? for the 10m band there are calculators on internet which give the component values. ?I surely feel? it is not impossible task.? That said? , the 10m propagation might not? bevthat condisive for dx working.?
I shall try to pit up a bpf? or two as designed by experts like ei1gq etc. And in 6 band opensource brazil design.
All the best.
We meed to take more care regarding covid-19 Regards Sarma vu3zmv
On Sat, 28 Mar 2020, 10:43 pm Bob Fischer, Fischer Technical Services, < FischerTek@...> wrote:
Ouch! Sounds like some of the smart people also have thin skins. Please don't insult them by asking THEM to learn anything more than they already know.? It seems some of them demand to be spoon-fed easy answers to sometimes complex questions. If you happen to be one of these intellectuals, I suggest you just tell the group your IQ and request "Easy Answers Only" at the beginning of your QUESTION. I suspect that will greatly reduce the insults.
From: "Robert D. Bowers" < n4fbz@...> To: [email protected]Sent: Saturday, March 28, 2020 12:27:29 PM Subject: Re: [BITX20] Info for converting older BitX20 ver B to 10 meters #bitx20
I did more searching today.? It seems that people have done this conversion, but again, NO DATA AVAILABLE (such as the proper cans for filtering and so on).? My main radio is unreliable transmitting at low power levels (I'm working on a cure for that) and it caused real problems for the RF sense part of my transverter - .? Having a dedicated 10w 10m radio (even 5w pep) would be the ideal situation - plus I'd be able to use the old radio for regular HF (digital, maybe some voice) and have separate 10m - 2m - 432 capability!
NOTE:? Please don't tell me to go read or learn.? I build stuff and do ham radio FOR RELAXATION, NOT "LEARNING".? My job entails reading highly technical reports, in a sense I'm reading around two highly technical books (in text length) a day (and pulling metadata out of the reports).? I'm also a doctoral candidate, specializing in using the so-called 'hard sciences' to discover cultural patterns in archaeological contexts - working with portable X-ray Fluorescence and optical spectroscopy (as well as precision GPS work, mapping, aerial photography analysis, and so on).? I SPEND MOST OF MY TIME "LEARNING", and like "doing" now and then - for relaxation.? Since I spend so much time doing pure research and study, please don't insult me with "gotta learn".? (I'm saying this because of past experiences on ham radio related message boards.)
If anyone has information (besides "research it yourself" or "buy new" - the usual insults), please let me know.? I really would like to put that old BitX20 on the air - on 10m!
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Re: uBITX v6 is now DEAD !!!!!
#v6
As K7UL mentioned, you'll want to actually open the .ino project. It looks like you opened the IDE, but didn't load the actual code.
For the "processor" in the menu, try selecting "ATmega328P (Old Bootloader)"
For the "programmer" in the menu, try selecting "AVRISP mkII".
Reed
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
Ouch! Sounds like some of the smart people also have thin skins. Please don't insult them by asking THEM to learn anything more than they already know.? It seems some of them demand to be spoon-fed easy answers to sometimes complex questions. If you happen to be one of these intellectuals, I suggest you just tell the group your IQ and request "Easy Answers Only" at the beginning of your QUESTION. I suspect that will greatly reduce the insults.
From: "Robert D. Bowers" <n4fbz@...> To: [email protected]Sent: Saturday, March 28, 2020 12:27:29 PM Subject: Re: [BITX20] Info for converting older BitX20 ver B to 10 meters #bitx20
I did more searching today.? It seems that people have done this conversion, but again, NO DATA AVAILABLE (such as the proper cans for filtering and so on).? My main radio is unreliable transmitting at low power levels (I'm working on a cure for that) and it caused real problems for the RF sense part of my transverter - .? Having a dedicated 10w 10m radio (even 5w pep) would be the ideal situation - plus I'd be able to use the old radio for regular HF (digital, maybe some voice) and have separate 10m - 2m - 432 capability!
NOTE:? Please don't tell me to go read or learn.? I build stuff and do ham radio FOR RELAXATION, NOT "LEARNING".? My job entails reading highly technical reports, in a sense I'm reading around two highly technical books (in text length) a day (and pulling metadata out of the reports).? I'm also a doctoral candidate, specializing in using the so-called 'hard sciences' to discover cultural patterns in archaeological contexts - working with portable X-ray Fluorescence and optical spectroscopy (as well as precision GPS work, mapping, aerial photography analysis, and so on).? I SPEND MOST OF MY TIME "LEARNING", and like "doing" now and then - for relaxation.? Since I spend so much time doing pure research and study, please don't insult me with "gotta learn".? (I'm saying this because of past experiences on ham radio related message boards.)
If anyone has information (besides "research it yourself" or "buy new" - the usual insults), please let me know.? I really would like to put that old BitX20 on the air - on 10m!
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If you have the right firmware I think you can reset to factory defaults first. ?I¡¯ll let Evan call it because he is more familiar.?
Joe
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On Mar 28, 2020, at 12:01 PM, Doug <69chevynova@...> wrote:
?Hi Evan
I checked.... It is a V.5.. Printed on the pcb.. It has an IM 386 ic and the crystals are 11.059...
So, when I go to BFO frequency, the frequency should be 11.0555 mhz? I have a lot of turning to do.
It is at 11.995 mhz.....
I will wait till you verify before I start to adjust it.
Thanks again Evan...
Doug
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Re: Nextion cec sotware problem
Idk. I might have an older copy allaying around
Joe
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On Mar 27, 2020, at 3:22 PM, mymonte666 via Groups.Io <mymonte666@...> wrote:
?Is there a way to get older versions of the nextion manager? I did noticed that it said that the file was created under an older version.?
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Re: Info for converting older BitX20 ver B to 10 meters
#bitx20
I did more searching today.? It seems that people have done this conversion, but again, NO DATA AVAILABLE (such as the proper cans for filtering and so on).? My main radio is unreliable transmitting at low power levels (I'm working on a cure for that) and it caused real problems for the RF sense part of my transverter - .? Having a dedicated 10w 10m radio (even 5w pep) would be the ideal situation - plus I'd be able to use the old radio for regular HF (digital, maybe some voice) and have separate 10m - 2m - 432 capability!
NOTE:? Please don't tell me to go read or learn.? I build stuff and do ham radio FOR RELAXATION, NOT "LEARNING".? My job entails reading highly technical reports, in a sense I'm reading around two highly technical books (in text length) a day (and pulling metadata out of the reports).? I'm also a doctoral candidate, specializing in using the so-called 'hard sciences' to discover cultural patterns in archaeological contexts - working with portable X-ray Fluorescence and optical spectroscopy (as well as precision GPS work, mapping, aerial photography analysis, and so on).? I SPEND MOST OF MY TIME "LEARNING", and like "doing" now and then - for relaxation.? Since I spend so much time doing pure research and study, please don't insult me with "gotta learn".? (I'm saying this because of past experiences on ham radio related message boards.)
If anyone has information (besides "research it yourself" or "buy new" - the usual insults), please let me know.? I really would like to put that old BitX20 on the air - on 10m!
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Doug,
11.05550 as Raj stated is the correct frequency for a v5 board.? Before you go adjusting things, can you verify that the stock v5 code is in the Raduino nano?? Have you or anyone else uploaded a new version of the code?
If the answer to the question is that it is still stock, then go ahead and adjust the BFO through the settings process.? There will not be a lot of turning on the original code, as every time you go into BFO Calibration the value gets set back to the stock setting of 11.055500 MHz.
It is very important that we know what software is installed, as clock 1 is different (and constant) depending on the board version.? This makes sense as the target frequency for the filter is now lower, the two values for USB and LSB need to be adjusted so that the signal through the 45 MHz roofing filter is in the sweet spot of the crystal filter.
Again, I hope it helps.
73
Evan
AC9TU
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Hi Evan
I checked.... It is a V.5.. Printed on the pcb.. It has an IM 386 ic and the crystals are 11.059...
So, when I go to BFO frequency, the frequency should be 11.0555 mhz? I have a lot of turning to do.
It is at 11.995 mhz.....
I will wait till you verify before I start to adjust it.
Thanks again Evan...
Doug
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Re: opriginal v6 software
The original is 6.1.? You can get it from Ashhar Farhan's GitHub account:
There is also a How-To video from Ashhar Farhan:
I hope this helps.
73
Evan
AC9TU
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Re: uBITX v6 is now DEAD !!!!!
#v6
Hi Ralph,
You do want to select the processor setting as ATmega328P Old bootloader.
Also, you will want to the Arduino programming IDE to load the source code.? After you move the code to the Arudino directory, you need to then load the .ino file.? Click on the file, and a new IDE should pop up with the code on your screen.? Set your processor settings, com port up and then the arrow button to upload it.
It may tell you that the code needs to be in a directory called .... what ever the .ino is called.? Hit yes, and let it do it.
At that point I would move the rest of the code into that directory.? It should be C:\xyz\Arduino\ubitx_V6.and so on.
You should be able to compile it at that point.
Later to repeat opening this project, you should be able to open the IDE, and select file, open recent and select the ubitx code.
Hope this helps.? 73
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AF7XT
Ted
Skip Davis