toggle for low output and max output? #ubitx

#50162

I have a feeling I am oversimplifying this.? It looks like Allison is getting closer to figuring out how to flatten the power output across all bands.? That is very exciting and a huge improvement.? However, it got me thinking.? Right now I am getting a little over 9w on 80m and about 8w on 40m.? Lately I have been spending time on 30m and 20m digital which both have an output under 5w keeping me in legit QRP range.? Let's assume Allison's project works and she shares it and I can figure it out.? To pick an arbitrary number let's also assume that my rig as an example post mod puts out a fairly even 9w across all bands.? That keeps us QRP for voice but not CW or data.? If I wanted to be able to switch back and forth is it feasible to connect two bias pots with a toggle switch and adjust one trimmer for 5w and one trimmer for 9w output?? For that matter what about 3 pots on a selector switch setting one more at 1w to drive an external amp?? As I ramble I wonder if you could also just bring the pot to the front panel and figure out a power meter but I like the idea of a set it and forget it switch.? Would this work or am I just exposing the gaps in my understanding?

Re: Raduino CAD Files

#50161

Teensy is good to, Paul does an incredible job supporting his products.
I have one, have played with it some, very nice.
About to dig it out, need to set it up as a frequency counter to help with those Nano resonator birdies.

I was looking at the mkrzero in part because if building something in volume
with the chip directly on my board, I'd much prefer to have the processor
in an LQFP rather than a BGA.

A correction for my previous post:

< But any libraries have not.
> But many libraries have not.

Jerry

Show quoted text

On Wed, May 23, 2018 at 11:22 am, Jerry Gaffke wrote:

If you are happy with ArduinoLand and prefer to stay,
this guy would be a very good choice in an ARM processor:
? ??
That's an Atmel processor, not ST.
Sold by the Arduino people, fully supported by the IDE.
Though I'm sure there are some Arduino libraries cooked up by others that haven't been ported.

Re: Raduino CAD Files

#50160

Yes, Roger Clark is your go-to guy for anything Blue Pill.

Arduino libraries were coded originally for the ATMega processors from Atmel.
The basic libraries have been ported to the Blue Pill and similar, mostly by Roger.
But any libraries have not.

Generally, EEPROM is not on those processors.
So an EEPROM library for an ARM chip would probably fake it by using flash.
Much slower on writes, but in most cases it works.

If you are happy with ArduinoLand and prefer to stay,
this guy would be a very good choice in an ARM processor:
? ??
That's an Atmel processor, not ST.
Sold by the Arduino people, fully supported by the IDE.
Though I'm sure there are some Arduino libraries cooked up by others that haven't been ported.

I like the STM32F line of processors,?
A family of parts available in pin compatible 48 and 64 pin LQFP's,
from sub-Nano at sub-buck prices to almost Teensy killers (M4 with floating point hardware).
That ultra low power STM32L line of processors mentioned in post 50037 is also pin compatible.

STM32L151xC STM32L152xC Ul

Jerry

Show quoted text

On Wed, May 23, 2018 at 10:13 am, Allen Merrell wrote:

Jerry
Lol, I agree . Yesterday was the first time I had played with the blue pill in about 2 years. I had to relearn again. I find myself using STLINK ?v2 ?most of the time. I have used the other methods including using a Discovery F4 board to do it with which envolves ?using stlink program and hex ?file , works fine but a problem to set up. Yes and don't ?forget moving the jumper on boot 0 . All I have ever got to load and run on it are simple programs never been able to get anything as complex as the uBitx firmware. I seem to be missing some of the needed files for the stm that are already in their for the Arduino . ?I did see where one of the stm people was doing some rewrite ?on some of it especially the EEPROM ?which was something I always had errors ?in. This is why the blue pills I have have not been touched in 2 years. This thing does have some serious ?potential ?and a very good price. I know someone here on this site will get this thing up and going. ?Roger Clark has some very good information ?on it.
73's ?kn4ud
--
Allen ?Merrell

Re: RF power chain mods and improvements..

#50159

Allison,

If I'm looking at the correct parts, it looks like those 4 transistors would cost about $10 USD total when purchased in single quantities. That's really not that big of an investment into a fine little radio.

I appreciate all your hard work!

Regards,

Mike M.

KU4QO

On Wed, May 23, 2018 at 11:35 AM, ajparent1/KB1GMX <kb1gmx@...> wrote:

so far my results confirm that using
2n2369 for Q90, and the pre-driver one 2n3866,? and driver two 2n3866.? ?

<snip>?

Now I wait for lower cost parts.

Allison
_._,_._,_

Re: Raduino CAD Files

#50158

Jerry
Lol, I agree . Yesterday was the first time I had played with the blue pill in about 2 years. I had to relearn again. I find myself using STLINK ?v2 ?most of the time. I have used the other methods including using a Discovery F4 board to do it with which envolves ?using stlink program and hex ?file , works fine but a problem to set up. Yes and don't ?forget moving the jumper on boot 0 . All I have ever got to load and run on it are simple programs never been able to get anything as complex as the uBitx firmware. I seem to be missing some of the needed files for the stm that are already in their for the Arduino . ?I did see where one of the stm people was doing some rewrite ?on some of it especially the EEPROM ?which was something I always had errors ?in. This is why the blue pills I have have not been touched in 2 years. This thing does have some serious ?potential ?and a very good price. I know someone here on this site will get this thing up and going. ?Roger Clark has some very good information ?on it.
73's ?kn4ud
--
Allen ?Merrell

Re: W8TEE source code

Rod Davis

#50157

开云体育

Jack,

the ambiguous "it" was the teensy that runs the filters and mic processing code
in the uBITX. I am imagining leaving the Nano in there for basic ops, and using
the Teensy for augmented features.

I have not thought out a user interface. I like the idea of an independent teensy,
as I could use those new features in other rigs.

Rod

On 05/23/2018 09:27 AM, Jack Purdum via Groups.Io wrote:

Show quoted text

Rod:

It is Open Source. Google "mic compressor" and see if our speech compressor doesn't do what you're thinking about. When you say "it", what is the "it" you're referring to?

Jack, W8TEE

On Wednesday, May 23, 2018, 12:24:01 PM EDT, Rod Davis <km6sn@...> wrote:

Hi Jack,

For my uBITX:

I have not been following the threads closely: is your software GPL open source?

I would like to just implement the rx filters.

I would also like to implement a mic high pass filter, followed by clipping, followed by a low pass
filter to remove the clipping residue. I have heard that gives some pretty good readability.

I am not so sure about mic compressing.

However, that introduces the issue of how to control it without an additional USB cable.

Regards,

Rod KM6SN

Re: ND6T AGC implementation for uBIT-X

#50156

Could you please put me down for 2 of each board.
Ross
vk3ucr

Re: Raduino replacement #bitx20

#50155

I kind of thought there was a buy option, and that maybe it was removed when they redid the website for the uBitx.
Special address is in the second paragraph here:??

I think you should ask Bo first.
He wants a uBitx without a Raduino.
A match made in heaven.

If the rig really did arrive non-functional and this was not some miswire issue,?hfsignals should at least be told

Jerry

Show quoted text

On Wed, May 23, 2018 at 09:20 am, Mike aka KC2WVB wrote:

Thanks Jerry. I did not see a click to order button on HF Signals web page nor did I see an email address for special orders like this. Did I miss what is there or did their page change?

. . .

Re: boosting the power on 28 MHz #ubitx

Gordon Gibby

#50154

开云体育

Yes, thank you Allison!!, I thought that, but I wanted to be certain. I’ve been watching all the discussion on this and all the other modifications. ? Life is a bit busy for me but it won’t be too much longer and I’ll get a chance to work on some of that.

On May 22, 2018, at 13:36, ajparent1/KB1GMX <kb1gmx@...> wrote:

Show quoted text

to18, can.? I've likely said that every time I"ve written 2n2222A

The only SMT is Q90 and maybe a 2n2222a is better there but I went with a 2n2369A.
FYI: you need other changes like farhan's cap mod, the choke in series with r86,
and so on. as just throwing 2n22222A against it only helps a little with no other changes.?
I haven't decided if this is the best way or can it be done using cheaper
transistors.??

Allison

Re: W8TEE source code

Jack Purdum

#50153

Rod:

It is Open Source. Google "mic compressor" and see if our speech compressor doesn't do what you're thinking about. When you say "it", what is the "it" you're referring to?

Jack, W8TEE

On Wednesday, May 23, 2018, 12:24:01 PM EDT, Rod Davis <km6sn@...> wrote:

Hi Jack,

For my uBITX:

I have not been following the threads closely: is your software GPL open source?

I would like to just implement the rx filters.

I would also like to implement a mic high pass filter, followed by clipping, followed by a low pass
filter to remove the clipping residue. I have heard that gives some pretty good readability.

I am not so sure about mic compressing.

However, that introduces the issue of how to control it without an additional USB cable.

Regards,

Rod KM6SN

W8TEE source code

Rod Davis

#50152

开云体育

Hi Jack,

For my uBITX:

I have not been following the threads closely: is your software GPL open source?

I would like to just implement the rx filters.

I would also like to implement a mic high pass filter, followed by clipping, followed by a low pass
filter to remove the clipping residue. I have heard that gives some pretty good readability.

I am not so sure about mic compressing.

However, that introduces the issue of how to control it without an additional USB cable.

Regards,

Rod KM6SN

Re: Raduino replacement #bitx20

Mike aka KC2WVB

#50151

Thanks Jerry. I did not see a click to order button on HF Signals web page nor did I see an email address for special orders like this. Did I miss what is there or did their page change?

Show quoted text

On Wed, May 23, 2018, 12:07 PM Jerry Gaffke via Groups.Io <jgaffke=[email protected]> wrote:

HFsignals will sell a Raduino to you for $25.
Be sure to get one configured and programmed for the uBitx, not for the Bitx40.
You can adapt the Bitx40 Raduino for uBitx use, but would require a new connector on the bottom (soldering) and uBitx firmware (programming).

Or, go talk to Bo:? /g/BITX20/message/50125

Jerry

On Wed, May 23, 2018 at 08:48 am, Mike aka KC2WVB wrote:

I ordered both the 40 meter and 80-10 meter BitX transceivers and assembled both radios this past weekend. The 40 meter rig is functioning perfectly. The uBitX all-band rig strongly suggests its Raduino component is defective. It neither tunes nor enters properly into the menu.
I would like to acquire a replacement Raduino for the uBitx so that it does not serve as a paper weight on my desk. I have graduate and undergraduate degrees in Mathematics not Electronics so while I can prove Pi is a transcendental number prior to using it in a simple equation for calculating the cutoff frequency of a low pass filter I am not necessarily at that high of a proficiency level in what is for me the hobby of electronics. Therefore, so that I can have an operational uBitX as I take the time to develop skills with respect to these fine radios could someone please point me in the direction of obtaining a replacement Raduino for the uBitX that is complete with installed software so that I can swap it with the defective board?

?
?

Re: Raduino replacement #bitx20

#50150

I don't see the Raduino as a buy option on hfsignals.com
Could ask through? ? hfsignals at? gmail dot com

Show quoted text

On Wed, May 23, 2018 at 09:07 am, Jerry Gaffke wrote:

HFsignals will sell a Raduino to you for $25.
Be sure to get one configured and programmed for the uBitx, not for the Bitx40.
You can adapt the Bitx40 Raduino for uBitx use, but would require a new connector on the bottom (soldering) and uBitx firmware (programming).

Or, go talk to Bo:? /g/BITX20/message/50125

Re: Raduino replacement #bitx20

#50149

HFsignals will sell a Raduino to you for $25.
Be sure to get one configured and programmed for the uBitx, not for the Bitx40.
You can adapt the Bitx40 Raduino for uBitx use, but would require a new connector on the bottom (soldering) and uBitx firmware (programming).

Or, go talk to Bo:? /g/BITX20/message/50125

Jerry

Show quoted text

On Wed, May 23, 2018 at 08:48 am, Mike aka KC2WVB wrote:

I ordered both the 40 meter and 80-10 meter BitX transceivers and assembled both radios this past weekend. The 40 meter rig is functioning perfectly. The uBitX all-band rig strongly suggests its Raduino component is defective. It neither tunes nor enters properly into the menu.
I would like to acquire a replacement Raduino for the uBitx so that it does not serve as a paper weight on my desk. I have graduate and undergraduate degrees in Mathematics not Electronics so while I can prove Pi is a transcendental number prior to using it in a simple equation for calculating the cutoff frequency of a low pass filter I am not necessarily at that high of a proficiency level in what is for me the hobby of electronics. Therefore, so that I can have an operational uBitX as I take the time to develop skills with respect to these fine radios could someone please point me in the direction of obtaining a replacement Raduino for the uBitX that is complete with installed software so that I can swap it with the defective board?

?
?

Re: boosting the power on 28 MHz #ubitx

#50148

Lets wait for Allison, she is doing some major heavy lifting to get flat power output. We can roll all of them together as a single recommendation.

- f

Show quoted text

On Wed, 23 May 2018, 17:40 David Robertson, <kd1na363@...> wrote:

Ashar, I did your modification which included shorting R83. I was careful to bag and tag all the removed components so I could remove the modification if needed.

I found the power out on 10 meters was 4 watts ( 1.2 watts before mod) and increased as we went down in frequency. On 80 meters it appears that I have about 18 watts out peak. Ran a couple of qsos and got good reports. Looks like this mod is a keeper! Thanks Ashar and thanks for such a good design.

73
Dave KD1NA

Re: Best way to unsolder the Nano?

#50147

One thing about solder, it's heavy.? Often made with lead.
I generally have better luck asking molten solder to go down than up.

Show quoted text

On Wed, May 23, 2018 at 08:35 am, David Nelson wrote:

The key to using it to clear holes, and I will never admit how long it took me to realize this, is to hold the sucker on one side of the board with enough pressure to get it solidly touching the board and the iron on the other side.? I usually do two heats.? First to remove the lead or pin from the offending component then another for the solder sucker to do its work.? Fun fact: if you don't make sure the top is locked down in the slot the plunger will fly higher than you think it will.
--

Raduino replacement #bitx20

Mike aka KC2WVB

#50146

I ordered both the 40 meter and 80-10 meter BitX transceivers and assembled both radios this past weekend. The 40 meter rig is functioning perfectly. The uBitX all-band rig strongly suggests its Raduino component is defective. It neither tunes nor enters properly into the menu.

I would like to acquire a replacement Raduino for the uBitx so that it does not serve as a paper weight on my desk. I have graduate and undergraduate degrees in Mathematics not Electronics so while I can prove Pi is a transcendental number prior to using it in a simple equation for calculating the cutoff frequency of a low pass filter I am not necessarily at that high of a proficiency level in what is for me the hobby of electronics. Therefore, so that I can have an operational uBitX as I take the time to develop skills with respect to these fine radios could someone please point me in the direction of obtaining a replacement Raduino for the uBitX that is complete with installed software so that I can swap it with the defective board?

Re: share your BITX success stories

#50145

Despite minor burps and lots of modding and testing I'm having a blast with the uBitx.
Then again I live for that and as often said if you like to make changes and improvements?
this is your radio and operating on the air is gravy.

Its pretty slick overall.

Allison

uBITX Firmware CEC Version 1.08 Release #ubitx

#50144

uBITX Firmware CEC Version 1.08 Release

Version 1.08 is the first major release since 1.061

Version 1.08 includes all additions or improvements from 1.07 to 1.07, 1.071, 1.073, 1.075 since 1.061, Version 1.08 has minor fixes in 1.075 (Beta)

Changed name to Version 1.08 in Version 1.075 Beta with minor fixed.

?

1.Receive performance is improved compared to the original firmware or version 1.061

2.ATT function has been added to reduce RF gain (Shift 45Mhz IF)

3.Added the ability to connect SDR. (Low cost RTL-SDR available)

4.Added a protocol to ADC Monitoring in CAT communications

5.Various LCD support, 16x02 Parallel LCD - It is the LCD equipped with uBITX, 16x02 I2C LCD, 20x04 Parallel LCD, 20x04 I2C LCD, 16x02 I2C Dual LCD

6.Added Extended Switch Support

7.Support S Meter - Any S-meter is compatible.

8.Added S-Meter setting assistant to uBITX Manager

9.Add recovery mode (such as Factory Reset)

There have been many other improvements and fixes. More information is available on the blog.?

Please see the link below for details.

?

You can download HEX file and uBITX Manager from the link above. You can also download the source code at https://github.com/phdlee/ubitx and see all the changes I've made so far. If there is a non-critical bug in the public version, I will link to the new firmware in the above blog.

?

--
Ian KD8CEC
kd8cec@...

Re: Best way to unsolder the Nano?

#50143

I had to replace my nano twice. Miswired, my fault. I got one of

the cheap irons off ebay with solder sucker built in. Worked great.

Beware, they a 110V or a 220V. Be sure to order the 110V version.

Best $15 I have spent in a long time. I use it a lot.? kc2ipx? Dave

Show quoted text

On Wed, May 23, 2018 at 11:25 AM, Doug W <dougwilner@...> wrote:

Fortunately I haven't had to remove the nano (knock, knock) but for cleaning out through holes I have had great luck with just a cheap solder sucker like this...

The key to using it to clear holes, and I will never admit how long it took me to realize this, is to hold the sucker on one side of the board with enough pressure to get it solidly touching the board and the iron on the other side.? I usually do two heats.? First to remove the lead or pin from the offending component then another for the solder sucker to do its work.? Fun fact: if you don't make sure the top is locked down in the slot the plunger will fly higher than you think it will.
--