Date   
Re: Hi from Adrien F4IJA

Adrien F4IJA <adrien.grelet@...>
 

Now I've my uBitx, I'm making some tests with a lab monitored power supply and you can find here my first results upon power drain consumption : http://www.tobeca.fr/f4ija/doku.php?id=ubitx:measurements

So, about 29.5W during WSPR transmit and 1.92W when idle. Interesting fact during the idle phase is that if I push to the maximum the output volume on the external speaker, there is the same curent drawn.
--
73's
Adrien F4IJA
https://www.qrz.com/db/F4IJA

Sloved: USB Problems Continue

JT Croteau
 

Confirmed I do not have a USB problem.  Moving on.

Re: uBITX full design

Jerry Gaffke
 

If building a new board for external low pass filters, 
could spend an extra $0.50 on a processor to interpret serial commands from the Raduino.
If wires kept short could use the i2c bus, pin count impact on the Raduino is a minus 3
since this frees up the TXA,TXB,TXC pins.
And perhaps include a tandem match style SWR detector out there, 
communicates back to the Raduino over that same serial bus.

None of the communications out to this LPF board need speed,
this LPF board is a better choice for i2c than the display.

Not that I feel any real need for 10 LPF's.  
The 4 we have on the uBitx adequately cover the WARC bands.
Putting the corner frequencies closer to the top edge of each band
would allow better attenuation of harmonics, but in some jurisdictions at least
the v5 uBitx meets regulatory requirements.
Sufficient in my book for a QRP rig.
Actually, 20/40/80m is sufficient in my book for an $129 SSB transceiver.

There were several reports in this forum of Raduino clones being built
that had more IO pins.  Moving to an Arm blue pill would seem ideal
for a Raduino upgrade.  W3JDR got most of the way there:
    https://groups.io/g/BITX20/topic/19284407

I'd much prefer something like that for getting extra pins for tasks where
execution time is a consideration, serial access over i2c is awfully slow.

If doing a Raduino clone, address these issues of the current Raduino:
    No reverse polarity protection for the 12v supply
    No protection for the IO pins that go off board, please add 100 or 1000 ohm series resistors.
    Avoid having Raduino oscillators create birdies in the receiver
    Perhaps improve si5351 drive power to 7dBm,  have optional second si5351 to avoid crosstalk?
Might be a good project for some engineering student.
Jonathan, you still out there?

Jerry, KE7ER


On Mon, Sep 23, 2019 at 10:05 AM, ajparent1/KB1GMX wrote:
On Mon, Sep 23, 2019 at 08:34 AM, Lawrence Galea wrote:
Farhan.
Did you ever think of making available a raduino with switching for every one of the 10 HF bands so that one could use external BPFs instead of the ones on the board or perhaps a program for those who want to change the original software to do so?
Or is there any programmer on this list who is willing to do it?
Thanks to all
Likely no as its too great a change to the Raduino and the ubitx.

The existing version is at best good for 8 bands if one uses TXA,TXB,TXC as 
a binary band select along with an external decoder chip like 74138 (3-8 decode).

If one is willing a ground up build and a improved raduino-like approach would be doable.
The trick with the Nano is using a I2C display to free up pins and readjusting what pins are
used where.

Allison

Re: USB Problems Continue

JT Croteau
 

I typo'd, 30,080 bytes are uploaded.

On Mon, Sep 23, 2019 at 1:00 PM JT Croteau via Groups.Io
<jt.tobit=gmail.com@groups.io> wrote:

I was having an issue connecting to my NANOs via USB and determined it to be a cable problem. I wonder if I might still have a cable problem?

I can now connect my laptop to the few NANOs I have, XLoader appears to connect as it shows 30,020 bytes uploaded for CEC v1.2, but when I reboot the uBITX, the stock v0.20 firmware comes up.

Could I still have a bad cable? Does 30,020 bytes sound about right for v1.2 CEC? Any other ideas? Does anyone have a link to a cable model that is known to work?

Thanks, I really need to get this working.

USB Problems Continue

JT Croteau
 

I was having an issue connecting to my NANOs via USB and determined it to be a cable problem.  I wonder if I might still have a cable problem?

I can now connect my laptop to the few NANOs I have, XLoader appears to connect as it shows 30,020 bytes uploaded for CEC v1.2, but when I reboot the uBITX, the stock v0.20 firmware comes up.

Could I still have a bad cable?  Does 30,020 bytes sound about right for v1.2 CEC?  Any other ideas?  Does anyone have a link to a cable model that is known to work?

Thanks, I really need to get this working.

Re: Collection of knowledge about CEC firmware? #firmware

Herman Scheper
 

Mark,

 

Is your softWare written for the 5”Nextion Enhanced version…?

 

i HOPE SO.

 

Herman PA0BAB

 

Van: BITX20@groups.io <BITX20@groups.io> Namens Herman Scheper
Verzonden: maandag 23 september 2019 19:01
Aan: BITX20@groups.io
Onderwerp: Re: [BITX20] Collection of knowledge about CEC firmware? #firmware

 

You all have  a lot of points!!!

 

Now I learned about Mark’s 5” Nextion version…first thing I did was downloading it….Testing next week because my Raduino is ‘passed away’ a few days ago.

Farhan sent me a new one !

My fault!!

 

Hope It will be better than the version I use now…

 

 

73

Herman

PA0BAB

 

Van: BITX20@groups.io <BITX20@groups.io> Namens Mark Hatch
Verzonden: maandag 23 september 2019 18:41
Aan: BITX20@groups.io
Onderwerp: Re: [BITX20] Collection of knowledge about CEC firmware? #firmware

 

Jeff does have a point. And as Don pointed out, it is a wild-wild-west situation with info actually in four places:

  1. KD8CEC website
  2. ubitx.net
  3. This group
  4. Ubitx groups (there are 2) on facebook...

Yes, google is your friend, *if* people believe that KD8CEC has become the default for GUI user interface, then even Google has a hard time sorting things out.

For example, the 5" Nextion file on KD8CEC's site is just the 2.8" screen, and doesn't fill the screen. The 5" screen on ubitx.net is also a resized version. The best (because I wrote it ;-) ) sits on the groups.io file section. But there is at least one more 5" screen that I am aware of that was crafted but I have lost the pointer...

Although only Ian can answer, it is my impression, from the lack of activity on the KD8CEC software, that he has moved on to other projects. We owe him a debt to get us this point. But we are now on our own....

73
Mark
AJ6CU

Re: uBITX full design

Laurence Oberman
 

Hello
The other option is the one I have been messing with and now that
summer is over hope to carry on with my project on the external amp
and the the much larger arduino Mega 25xx

That has plenty of pins for all sort of extras.
Regards
Laurence

On Mon, Sep 23, 2019 at 1:05 PM ajparent1/KB1GMX <kb1gmx@...> wrote:

On Mon, Sep 23, 2019 at 08:34 AM, Lawrence Galea wrote:

Farhan.
Did you ever think of making available a raduino with switching for every one of the 10 HF bands so that one could use external BPFs instead of the ones on the board or perhaps a program for those who want to change the original software to do so?
Or is there any programmer on this list who is willing to do it?
Thanks to all

Likely no as its too great a change to the Raduino and the ubitx.

The existing version is at best good for 8 bands if one uses TXA,TXB,TXC as
a binary band select along with an external decoder chip like 74138 (3-8 decode).

If one is willing a ground up build and a improved raduino-like approach would be doable.
The trick with the Nano is using a I2C display to free up pins and readjusting what pins are
used where.

Allison

Re: uBITX full design

ajparent1/kb1gmx
 

On Mon, Sep 23, 2019 at 08:34 AM, Lawrence Galea wrote:
Farhan.
Did you ever think of making available a raduino with switching for every one of the 10 HF bands so that one could use external BPFs instead of the ones on the board or perhaps a program for those who want to change the original software to do so?
Or is there any programmer on this list who is willing to do it?
Thanks to all
Likely no as its too great a change to the Raduino and the ubitx.

The existing version is at best good for 8 bands if one uses TXA,TXB,TXC as 
a binary band select along with an external decoder chip like 74138 (3-8 decode).

If one is willing a ground up build and a improved raduino-like approach would be doable.
The trick with the Nano is using a I2C display to free up pins and readjusting what pins are
used where.

Allison

Re: Collection of knowledge about CEC firmware? #firmware

Herman Scheper
 

You all have  a lot of points!!!

 

Now I learned about Mark’s 5” Nextion version…first thing I did was downloading it….Testing next week because my Raduino is ‘passed away’ a few days ago.

Farhan sent me a new one !

My fault!!

 

Hope It will be better than the version I use now…

 

 

73

Herman

PA0BAB

 

Van: BITX20@groups.io <BITX20@groups.io> Namens Mark Hatch
Verzonden: maandag 23 september 2019 18:41
Aan: BITX20@groups.io
Onderwerp: Re: [BITX20] Collection of knowledge about CEC firmware? #firmware

 

Jeff does have a point. And as Don pointed out, it is a wild-wild-west situation with info actually in four places:

  1. KD8CEC website
  2. ubitx.net
  3. This group
  4. Ubitx groups (there are 2) on facebook...

Yes, google is your friend, *if* people believe that KD8CEC has become the default for GUI user interface, then even Google has a hard time sorting things out.

For example, the 5" Nextion file on KD8CEC's site is just the 2.8" screen, and doesn't fill the screen. The 5" screen on ubitx.net is also a resized version. The best (because I wrote it ;-) ) sits on the groups.io file section. But there is at least one more 5" screen that I am aware of that was crafted but I have lost the pointer...

Although only Ian can answer, it is my impression, from the lack of activity on the KD8CEC software, that he has moved on to other projects. We owe him a debt to get us this point. But we are now on our own....

73
Mark
AJ6CU

Re: uBITX full design

Scott McDonald
 

Hi Dale, there’s an embedded link in the article here, just checked it and it still seems good.


If for some reason that doesn’t work please let me know and Ill dig in out the direct link, but that article is worth a look.

73 Scott Ka9p


On Sep 23, 2019, at 5:24 PM, Dale Hardin <joe.dale.hardin@...> wrote:

Scott, I searched shared projects on OshPark and  couldn't find the IF amp.  Could you provide a link?  Thanks, Dale
--
Dale Hardin, KS4NS
Elberta, AL

Re: Collection of knowledge about CEC firmware? #firmware

Mark Hatch
 

Jeff does have a point. And as Don pointed out, it is a wild-wild-west situation with info actually in four places:
  1. KD8CEC website
  2. ubitx.net
  3. This group
  4. Ubitx groups (there are 2) on facebook...
Yes, google is your friend, *if* people believe that KD8CEC has become the default for GUI user interface, then even Google has a hard time sorting things out.

For example, the 5" Nextion file on KD8CEC's site is just the 2.8" screen, and doesn't fill the screen. The 5" screen on ubitx.net is also a resized version. The best (because I wrote it ;-) ) sits on the groups.io file section. But there is at least one more 5" screen that I am aware of that was crafted but I have lost the pointer...

Although only Ian can answer, it is my impression, from the lack of activity on the KD8CEC software, that he has moved on to other projects. We owe him a debt to get us this point. But we are now on our own....

73
Mark
AJ6CU

Re: uBITX full design

Dale Hardin
 

Scott, I searched shared projects on OshPark and  couldn't find the IF amp.  Could you provide a link?  Thanks, Dale
--
Dale Hardin, KS4NS
Elberta, AL

Re: uBITX full design

Scott McDonald
 

FWIW, if you haven’t already seen them, the IF amp boards - SMT type- are available on OSH Park very reasonably and are a great start for a stage by stage build.  They don’t have holes for mounting posts so a bit of ingenuity is required but they work well otherwise.

Good luck.  Scott Ka9p


On Sep 23, 2019, at 1:40 PM, MadRadioModder <madradiomodder@...> wrote:

In my mind… this is the obvious next step for the uBITx.  There is a good following of people here that wouldn’t mind building the radio from scratch… and it also allows for experimentation in each of the stages as one builds and tests.  If I ever get time, my goal is to make a set of boards stage by stage that can be fit together on a motherboard.  What better teaching tool?

 

For the rest, there is the completed (prebuilt board) uBITx that has become so successful.

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Ashhar Farhan
Sent: Monday, September 23, 2019 1:13 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX full design

 

Jonathan,

 

I can arrange for a blank PCB if you want to solder it all up. it  hurts my wrist to do it all over again. i have done it several times to test the new boards. there is very little education in it. 

on the other hand, you might want to build a ubitx all by yourself. although it is a double conversion design, it is actually quite easy to build, stage-wise. beign by building the IF amplifiers. you will have to build six of those. get one going and duplicat the rest. each on a separate 2"x2" copper board.  you can hook up a raduino from the Si5351 board from qrp-labs and an antuino. using that as a signal generator, you can test/align the 45 Mhz filter and the LPF. At that point, you are done with the RF parts and you can choose to go with any audio amplification system.

i would encourage you to build it one stage at a time, test, measure and move on. great education!!

 

73, f

 

On Mon, Sep 23, 2019 at 4:06 AM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io> wrote:

I agree with Curt.
A good student project would be to get the uBitx, and then try to improve it somehow.
Lots of fodder in this forum if looking for ideas of what to do.

Jerry


On Sun, Sep 22, 2019 at 03:27 PM, Curt wrote:

Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 


Virus-free. www.avg.com

--

…_. _._

Re: uBITX full design

Lawrence Galea
 

Farhan.
Did you ever think of making available a raduino with switching for every one of the 10 HF bands so that one could use external BPFs instead of the ones on the board or perhaps a program for those who want to change the original software to do so?
Or is there any programmer on this list who is willing to do it?
Thanks to all
Lawrence

On Mon, Sep 23, 2019 at 2:41 PM MadRadioModder <madradiomodder@...> wrote:

In my mind… this is the obvious next step for the uBITx.  There is a good following of people here that wouldn’t mind building the radio from scratch… and it also allows for experimentation in each of the stages as one builds and tests.  If I ever get time, my goal is to make a set of boards stage by stage that can be fit together on a motherboard.  What better teaching tool?

 

For the rest, there is the completed (prebuilt board) uBITx that has become so successful.

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Ashhar Farhan
Sent: Monday, September 23, 2019 1:13 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX full design

 

Jonathan,

 

I can arrange for a blank PCB if you want to solder it all up. it  hurts my wrist to do it all over again. i have done it several times to test the new boards. there is very little education in it. 

on the other hand, you might want to build a ubitx all by yourself. although it is a double conversion design, it is actually quite easy to build, stage-wise. beign by building the IF amplifiers. you will have to build six of those. get one going and duplicat the rest. each on a separate 2"x2" copper board.  you can hook up a raduino from the Si5351 board from qrp-labs and an antuino. using that as a signal generator, you can test/align the 45 Mhz filter and the LPF. At that point, you are done with the RF parts and you can choose to go with any audio amplification system.

i would encourage you to build it one stage at a time, test, measure and move on. great education!!

 

73, f

 

On Mon, Sep 23, 2019 at 4:06 AM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io> wrote:

I agree with Curt.
A good student project would be to get the uBitx, and then try to improve it somehow.
Lots of fodder in this forum if looking for ideas of what to do.

Jerry


On Sun, Sep 22, 2019 at 03:27 PM, Curt wrote:

Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 


Virus-free. www.avg.com

--

…_. _._

Re: uBITX full design

MadRadioModder
 

In my mind… this is the obvious next step for the uBITx.  There is a good following of people here that wouldn’t mind building the radio from scratch… and it also allows for experimentation in each of the stages as one builds and tests.  If I ever get time, my goal is to make a set of boards stage by stage that can be fit together on a motherboard.  What better teaching tool?

 

For the rest, there is the completed (prebuilt board) uBITx that has become so successful.

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Ashhar Farhan
Sent: Monday, September 23, 2019 1:13 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBITX full design

 

Jonathan,

 

I can arrange for a blank PCB if you want to solder it all up. it  hurts my wrist to do it all over again. i have done it several times to test the new boards. there is very little education in it. 

on the other hand, you might want to build a ubitx all by yourself. although it is a double conversion design, it is actually quite easy to build, stage-wise. beign by building the IF amplifiers. you will have to build six of those. get one going and duplicat the rest. each on a separate 2"x2" copper board.  you can hook up a raduino from the Si5351 board from qrp-labs and an antuino. using that as a signal generator, you can test/align the 45 Mhz filter and the LPF. At that point, you are done with the RF parts and you can choose to go with any audio amplification system.

i would encourage you to build it one stage at a time, test, measure and move on. great education!!

 

73, f

 

On Mon, Sep 23, 2019 at 4:06 AM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io> wrote:

I agree with Curt.
A good student project would be to get the uBitx, and then try to improve it somehow.
Lots of fodder in this forum if looking for ideas of what to do.

Jerry


On Sun, Sep 22, 2019 at 03:27 PM, Curt wrote:

Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 


Virus-free. www.avg.com

--

…_. _._

Re: uBITX full design

Ashhar Farhan
 

Jonathan,

I can arrange for a blank PCB if you want to solder it all up. it  hurts my wrist to do it all over again. i have done it several times to test the new boards. there is very little education in it. 
on the other hand, you might want to build a ubitx all by yourself. although it is a double conversion design, it is actually quite easy to build, stage-wise. beign by building the IF amplifiers. you will have to build six of those. get one going and duplicat the rest. each on a separate 2"x2" copper board.  you can hook up a raduino from the Si5351 board from qrp-labs and an antuino. using that as a signal generator, you can test/align the 45 Mhz filter and the LPF. At that point, you are done with the RF parts and you can choose to go with any audio amplification system.
i would encourage you to build it one stage at a time, test, measure and move on. great education!!

73, f

On Mon, Sep 23, 2019 at 4:06 AM Jerry Gaffke via Groups.Io <jgaffke=yahoo.com@groups.io> wrote:
I agree with Curt.
A good student project would be to get the uBitx, and then try to improve it somehow.
Lots of fodder in this forum if looking for ideas of what to do.

Jerry


On Sun, Sep 22, 2019 at 03:27 PM, Curt wrote:
Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 

Re: Calibration #calibration

d.maccallum@...
 

Well this is a work in progress. Every thing keeps getting improved and a lot of the guys doing the improvements assume everyone knows the history of how thing evolved. So whats happening here is all all the information a newbie needs is not tied together in one place. So here is what I found out so far to get my mbitx V5.1 running right after I got everything running and the wiring checked ok using the factory firmware.
 Here is what information and files that I found helped me get my rig running right  for thr mbitx V5.1 as of 9-22-2019.:
1. down loaded uBITX_CEC_V1.200_16P.hex  file in folder. I found a programming USB to MINI cable at my local drug store today. Download the hex file using XLoader software. A software driver needs to be installed in your computer to talk to the Nano in the mbitx radio.
2. Read the KD8CEC uBitx manual for V1.072 by Rod KM6SN manual ua1072_087 at web site: ubiix.net/manual-kd8cec-firmware/ Learn how to use the three types of button presses on the indexer knob push button. I wondered why the separate button was required in paralleled with the existing indexer push button....and now I know the rest of the story. A lot of whats in this manual works for the V1.2.
3. Go to this web site and read all the links:  http://www.tobeca.fr/f4ija/doku.php?id=ubitx:calibration

CUL on the Bands 73

Dave N8KZ

Re: Calibration #calibration

riz-qcx@...
 

Wow, that's great!  Very much appreciated by those of us who are trying to learn several things at the same time - this really clarifies it.

Thank you!

+jeff AJ6IY

Re: uBITX full design

Jerry Gaffke
 

I agree with Curt.
A good student project would be to get the uBitx, and then try to improve it somehow.
Lots of fodder in this forum if looking for ideas of what to do.

Jerry


On Sun, Sep 22, 2019 at 03:27 PM, Curt wrote:
Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 

Re: uBITX full design

Curt
 

Jonathan

now after reading your QRZ listing I see you are a student, not working on a faculty project idea, but a personal project for your program there. 

as Jerry mentioned, the full component BOM is available.  even if they shipped you a board, still not a worthy student project to assemble a ubitx.  there are some things that could be expanded, like adding VHF capability (the existing 45 MHz may not be so good).  I have a paper where KK7B (a prof) has related HF layout to microwave MMIC chip design.  so some analogous learning is indeed possible. 

Jerry gave a nice description of the board.  An EE named Allison has separately commented on optimizing the PA portion - and she went out and designed a better PA layout assisting Hans Summers at QRP-Labs (they currently offer this PA kit over there).  Years ago a prof somewhere got his students to build a QRP rig, Norcal 40A maybe.  I see you already built a McHF so I don't see a lot of upside to you building your own ubitx from scratch.  likely you have already dug into the nifty synthesizer components that are a key piece of modern QRP likes ubitx and QCX. 

best wishes in your study and remaining time at that nice (rather Hokie) venue.

Curt