Date   
Re: IRF510 more Volts = more W? #ubitx

Vic WA4THR
 

Very odd, but I am now seeing the same thing on my BitX40v3. On the test bench I was seeing what looked to be an output that increased by the square of the PA voltage ratio, but since packaking, shorter leads, some common grounds, I actually see the same or even less output at 24v than at 12v (or 13.8). I must have some wiring issue, but I did directly jumper the 24v to the PA and saw no difference, so ??

=Vic=

Re: Anyone (US Only for now) need a uBITX Raduino repaired? #ubitx

KC9SGV
 

Hi Jim,
Good to know.
I might need your service later....
Ordered all the parts to try myself first.

The Raduino seems to be the Achiles heel here.
Break it, by reversing the connectors, or short some part of it out to ground by way of shoddy assembly practice, and your radio is done.
A Raduino replacement service is needed.
Not sure that HFsigs can keep up with that as well.

Bernie
KC9SGV


On Feb 5, 2018, at 4:20 PM, Jim Sheldon <w0eb@...> wrote:

That DOES present a problem - LOL.

I found that one does NOT want to power the Nano using the Vin pin if you are using an external supply greater than 12VDC!  The on board LM1117 regulator can't take that with the load of the processor and the I/O on it.  Smoke, fire and flames in the regulator - overvoltaged the processor on the Nano, put more than 5 volts onto the I2C bus so it wiped out the Si5251 Clock chip as well.

I got a real education in replacing the 5351 - LOL.  I have a cheap hot air rework station and it did a nice job removing the dead chip.  I have been playing with the idea of possibly breadboarding a Raduino and have some carrier PC boards for the 5351's.  Still have to solder the chips on the boards though.  I bough a handful of 5351A's from Digi-Key for 91 cents US apiece. 

The way to go was Chip Quik's "Tack" flux - not cheap but 10ml for $20 bucks will last a LOOOONG time.  Dab of it on each pad, position the chip carefully over it's pads and using a needle point tip on my soldering iron, tacked each pin to the board.  I made up a probe for my DVM using a small sewing needle and was able to confirm continuity and no shorts on all the pins.  Programmed a new Nano and replaced the one that burned up (put machined pins and sockets on things this time).  Everything fired up and ran just fine.  Just after I built the test fixture, I read the frequencies of the clocks on my nicely calibrated uBITX and wrote them down.  With the test set, I can go into Factory Alignment mode and with a freq counter attached to the Clock 2 output, I can actually set the frequency accurately and save it.  The BFO can be read on clock 1 and I had those figures too so setting it to the right frequency was a breeze.  After the repair, I re-installed it in the uBITX, tuned to WWV at 5.000.00 MHz (the only one I can hear in Kansas during the daytime) and I was only off by 150 Hz.  Sure saved a lot of time being able to pre-calibrate the clocks outside of the radio!

The only drawback is - the clocks have to be calibrated to the specific radio for accuracy, due to the variations in crystal filters.  You can, however get very close so if I had to replace a Nano for someone, I could pre-calibrate the clocks to close proximity of what they should be and the user could fine tune them in his/her rig.

Jim - W0EB

Re: IRF510 more Volts = more W? #ubitx

Nick VK4PP
 

Maybe the bias needs re-adjusting for 24v operation?
I really dont know much about the technical operations of these things, I am still learing...
I am tempted to replace the Electro caps with 35v versions and try maybe 30v in the PA... I have spare IRF510s... lol.
Nick.,

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Konstantinos Konstas
 

Hello Ian,

Thank you very much for the updated version (CEC) 0.34 which is the first that I have uploaded to my newly received UBitx.
It has greatly improved the way my trx operates.
I will be testing it for a while, but generally speaking what I've tested up till now works to my expectations. Congratulations.

One thing that it is not very clear to me is how the split mode works. Is there a link or video for it? It would save me some time from trying to guess how and it would be greatly appreciated. As you may figure out, I also like to chase some DX as a QRP station!

I would like to invest some time to some necessary hardware improvements, number one being adding AGC (testing at first the original schematic), and then adding the s-meter to pin7.
I hope I can also find some time to play with your UBitx Manager.

Taking this opportunity, I would also like to comment that you are doing a very excellent job with your version of firmware for UBitx, and we as users must feel very lucky for that. Please keep the good work.
 
Very sincerely,

Re: IRF510 more Volts = more W? #ubitx

Rob Snow
 

I'm following this with lots of interest.  I still don't have my uBITX and probably won't until March or so.  My personal goal is for ~10W out 28MHz, preferably with some headroom if I wanted to push it or just for a margin of error.  To that end I've ordered extra IRF510s and some RD16HHF1's as I have poor magic smoke herding skills and even poorer PA skills!

-Rob

Re: Anyone (US Only for now) need a uBITX Raduino repaired? #ubitx

Jim Sheldon
 

Hope you do fix it yourself Bernie, It can be a real learning experience and if not, I'll be glad to try and help.  The only really tricky part is replacing the 5351.  Everything else is pretty straightforward.

If you have an oscilloscope,and frequency counter, carefully probe the clock outputs on the bottom pins of the Raduino. Clock 0 is the BFO and should show a sine wave with a frequency of 11995-12000 KHz  Clock 1 will show the receive local oscillator and clock 2 will show the transmit oscillator.  If in CW mode it should show the exact frequency the display is tuned to.

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

Jack.
Thank you for your attention and advice.
I first used Arduino. So I thought that Arduino was this style.(I did not know.)
I also decided that it would be nice to keep the original name in order to share code in github. In fact, some or all of my code has been merged into someone else's project.
On the other hand, I received a pullrequest request from someone else and my code was modified.
But now I was wondering if I should keep this style with little or no original source left.

I released it to version 0.35 a few hours ago.It's got more features than I thought with the help of many great people. they has good idea and good suggestion.
I have put all the functions I wanted to put in, except to build in wspr. So going to release Major in 1.0 soon.
I think this issue should be reconsidered at that point.

Thank you again for your interest.

Ian KD8CEC

2018-02-06 6:54 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...>:

Hi Ian:

I was wondering if you had plans to convert the support files for your software to *.cpp files from their current *.ino secondary file names (except for ubitx_30.ino)?

Jack, W8TEE



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: whistles in receive

John Backo
 

Back in the '50's, when I was still in high school,
console radios were being replaced by "portables"
and lots of them were available for the taking. I had
one which I took out of the wood and put on my desk,
a 9 or 10 tube job with all the SW frequencies. I think
it was an Emerson.

I stuck a long wire antenna out the window to a nearby
tree and listened all the time. When I was doing my homework
on October 4, 1957, I was listening to Radio Moscow when
they announced that Sputnik 1 had been launched.

I don't remember whether or not I finished my homework
that night. Hi.

I don't know whether or not any of those old console radios
are still available. I lost mine along the way. But it sure would
be nice to have one of those rigs again.

Ah, well; there is always Arduino...

john
AD5YE

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

Thanks for using this firmware.

split mode is very simple implement. when TX start (CW or PTT), Change VFO, and finish TX, back to VFO.
It actually took less than five minutes to implement. Because it is so simple structure, there is probably no big problem.
Instead, I put Vfo to Channel, Channel to Vfo in v0.35. It is a function to put frequently used frequency into a channel and to call it as a VFO.
With uBITX Manager, you can using adjust Hamband, TX control, builtin memory keyer(autokey), adjust tune step... and Accurate CW Keying by entering precise ADC value input

I hav plan to change the version to 1.0 this week and work on the video and manual.

Thanks agian.

Ian KD8CEC



2018-02-06 7:56 GMT+09:00 Konstantinos Konstas <constantine170@...>:

Hello Ian,

Thank you very much for the updated version (CEC) 0.34 which is the first that I have uploaded to my newly received UBitx.
It has greatly improved the way my trx operates.
I will be testing it for a while, but generally speaking what I've tested up till now works to my expectations. Congratulations.

One thing that it is not very clear to me is how the split mode works. Is there a link or video for it? It would save me some time from trying to guess how and it would be greatly appreciated. As you may figure out, I also like to chase some DX as a QRP station!

I would like to invest some time to some necessary hardware improvements, number one being adding AGC (testing at first the original schematic), and then adding the s-meter to pin7.
I hope I can also find some time to play with your UBitx Manager.

Taking this opportunity, I would also like to comment that you are doing a very excellent job with your version of firmware for UBitx, and we as users must feel very lucky for that. Please keep the good work.
 
Very sincerely,



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: Case

ekelley
 

Very nice work, looks great!

On 2/5/2018 2:06 AM, Sajeesh Pilakkat via Groups.Io wrote:
Dear All,

Inviting you all to have a look on uBitx Case Home brewed.

http://vu3psz.blogspot.in/2018/02/ubitx-home-brewed-enclosure.html

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack Purdum
 

Hi Ian:

I think you should consider it, as you have lost all type checking across files by making them all *.ino files. Obviously, this has not been a problem, but might be in the future. Just a suggestion to restore type checking.

Jack, W8TEE



From: Ian Lee <kd8cec@...>
To: BITX20@groups.io
Sent: Monday, February 5, 2018 6:04 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack.
Thank you for your attention and advice.
I first used Arduino. So I thought that Arduino was this style.(I did not know.)
I also decided that it would be nice to keep the original name in order to share code in github. In fact, some or all of my code has been merged into someone else's project.
On the other hand, I received a pullrequest request from someone else and my code was modified.
But now I was wondering if I should keep this style with little or no original source left.

I released it to version 0.35 a few hours ago.It's got more features than I thought with the help of many great people. they has good idea and good suggestion.
I have put all the functions I wanted to put in, except to build in wspr. So going to release Major in 1.0 soon.
I think this issue should be reconsidered at that point.

Thank you again for your interest.

Ian KD8CEC

2018-02-06 6:54 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...>:
Hi Ian:

I was wondering if you had plans to convert the support files for your software to *.cpp files from their current *.ino secondary file names (except for ubitx_30.ino)?

Jack, W8TEE


--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)


New file uploaded to BITX20@groups.io

BITX20@groups.io Notification <BITX20+notification@...>
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20@groups.io group.

File: ubitx_V2_00R.zip

Uploaded By: Jim Sheldon

Description:
Latest NON I2C release from W0EB/W2CTX - ubitx_V2_00R contains totally restructured menu system - SPLIT is working - slight rewiring of CW Key Jack is required but this VASTLY improves the CW keying - full instructions are included in the PDF manual -- see README.TXT in the zipfile for change details. File has been replaced due to newer instruction manual contained in the zipfile.

You can access this file at the URL:
https://groups.io/g/BITX20/files/%23ubitx%20ubitx%20release%20software%20from%20W0EBW2CTX/ubitx_V2_00R.zip

Cheers,
The Groups.io Team

Professional Programmers

James Lawrie
 

Ive been on this group for awhile now and noticed posts from others in past that they were professional programmers and such. 

If this is true and you are proficient at programming for PIC, ATMEL, MSP430 series and or DSP MPUs using C or Assembly I would like to discuss a plan with you for a project I need help with that will be of benefit to everyone on this site. I can pay for your services but in the end it will be Open Software. I’ll even provide the parts, please let me know.

People might like a better option than what is already here.

Thanks,

Plastic vs Metal Cabinets

Mike Lichtman
 

I know that Farhan has recommended a metal enclosure for the uBitx but I see many people using plastic. Has anyone
who has a plastic enclosure encountered any problems with it so far? By the way, I ordered on 12/17 and received
an email that it was shipped today. 73 Mike KF6KXG

Re: Plastic vs Metal Cabinets

Thomas Sharka
 

Yes, the plastic enclosures are more prone to external RF. I'm using the popular chinese cabinet and have a TS-100 soldering iron powered by a laptop brick that puts out a rather large RFI footprint. It floods the uBITX receive while under temperature regulation. If the uBITX were in a properly grounded metal case, the interference would be considerably less. I can get within 1 foot with the TS-100 and cause the receive on the uBITX to be swamped. I'm currently looking into improving the shielding on the TS-100 to cause less of an RFI footprint.
 


Sent from Yahoo Mail. Get the app


On Monday, February 5, 2018 10:06 PM, Mike Lichtman via Groups.Io <tchrme@...> wrote:


I know that Farhan has recommended a metal enclosure for the uBitx but I see many people using plastic. Has anyone
who has a plastic enclosure encountered any problems with it so far? By the way, I ordered on 12/17 and received
an email that it was shipped today. 73 Mike KF6KXG


bitx 40 cat and digital modes

R. Kuehn
 

Hi,

I know there have been some threads on these topics before, however I'm kinda interested what the current 'state of the art' is, so to speak.

Is there anyone using CAT control on their bitx 40, and how are you doing it? If you are doing digital modes are you using VOX circuit for the PTT, or via another method. Thanks!

Ralph
N9WTX

Re: Anyone (US Only for now) need a uBITX Raduino repaired? #ubitx

Jim Sheldon
 

OOPS, Regarding Clock 2, it will show the display frequency only in CW mode and only with the key down.

Jim - W0EB

Re: bitx 40 cat and digital modes

Joe Puma
 

I successfully used FT8 modes and jt9/65 before that. I used a raspberry pi with a usb audio and connected mic and speaker to that. For PTT I used a gpio pin on the rpi and made a ground ptt circuit. Wsjtx did the rest. 

There is CAT control for the bitx40 and wsjtx has good CAT control support. 

Joe
KD2NFC 



On Feb 5, 2018, at 10:29 PM, rekuehn@... wrote:

Hi,

I know there have been some threads on these topics before, however I'm kinda interested what the current 'state of the art' is, so to speak.

Is there anyone using CAT control on their bitx 40, and how are you doing it? If you are doing digital modes are you using VOX circuit for the PTT, or via another method. Thanks!

Ralph
N9WTX

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

Jack.

I am always thanks for your advice. 
I decided to follow your advice and work for about an hour and change everything to cpp.
For the time being, i will keep the existing .ino (for forked other source) and provide the converted source to .cpp when version release.

Ian KD8CEC

2018-02-06 9:28 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...>:

Hi Ian:

I think you should consider it, as you have lost all type checking across files by making them all *.ino files. Obviously, this has not been a problem, but might be in the future. Just a suggestion to restore type checking.

Jack, W8TEE



From: Ian Lee <kd8cec@...>
To: BITX20@groups.io
Sent: Monday, February 5, 2018 6:04 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack.
Thank you for your attention and advice.
I first used Arduino. So I thought that Arduino was this style.(I did not know.)
I also decided that it would be nice to keep the original name in order to share code in github. In fact, some or all of my code has been merged into someone else's project.
On the other hand, I received a pullrequest request from someone else and my code was modified.
But now I was wondering if I should keep this style with little or no original source left.

I released it to version 0.35 a few hours ago.It's got more features than I thought with the help of many great people. they has good idea and good suggestion.
I have put all the functions I wanted to put in, except to build in wspr. So going to release Major in 1.0 soon.
I think this issue should be reconsidered at that point.

Thank you again for your interest.

Ian KD8CEC

2018-02-06 6:54 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...>:
Hi Ian:

I was wondering if you had plans to convert the support files for your software to *.cpp files from their current *.ino secondary file names (except for ubitx_30.ino)?

Jack, W8TEE


--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)




--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack Purdum
 

Hi Ian:

No pressure from me, as it's your software. However, I think type checking is a real useful tool, especially when debugging code. I think everyone will appreciate it.

Jack, W8TEE



From: Ian Lee <kd8cec@...>
To: BITX20@groups.io
Sent: Monday, February 5, 2018 11:11 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack.

I am always thanks for your advice. 
I decided to follow your advice and work for about an hour and change everything to cpp.
For the time being, i will keep the existing .ino (for forked other source) and provide the converted source to .cpp when version release.

Ian KD8CEC

2018-02-06 9:28 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...>:
Hi Ian:

I think you should consider it, as you have lost all type checking across files by making them all *.ino files. Obviously, this has not been a problem, but might be in the future. Just a suggestion to restore type checking.

Jack, W8TEE



From: Ian Lee <kd8cec@...>
To: BITX20@groups.io
Sent: Monday, February 5, 2018 6:04 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Jack.
Thank you for your attention and advice.
I first used Arduino. So I thought that Arduino was this style.(I did not know.)
I also decided that it would be nice to keep the original name in order to share code in github. In fact, some or all of my code has been merged into someone else's project.
On the other hand, I received a pullrequest request from someone else and my code was modified.
But now I was wondering if I should keep this style with little or no original source left.

I released it to version 0.35 a few hours ago.It's got more features than I thought with the help of many great people. they has good idea and good suggestion.
I have put all the functions I wanted to put in, except to build in wspr. So going to release Major in 1.0 soon.
I think this issue should be reconsidered at that point.

Thank you again for your interest.

Ian KD8CEC

2018-02-06 6:54 GMT+09:00 Jack Purdum via Groups.Io <jjpurdum@...> :
Hi Ian:

I was wondering if you had plans to convert the support files for your software to *.cpp files from their current *.ino secondary file names (except for ubitx_30.ino)?

Jack, W8TEE


--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)




--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)