Date   

Re: plugging mic in causes the ubitx V6 to go into transmit mode

Gordon Gibby
 

So, start with the basics. Read the voltage on the push to talk pin of the jack, and see what happens to it when you plug that mic in.

If it goes to zero, you are shorting it out somehow.

Proceed methodically and systematically from that point to find out where it got shorted to ground.  

This is regular old ham radio, a chance to learn and practice techniques of figuring things out

Gordon 



On Jul 6, 2020, at 15:06, John KG9DK <jab3739@...> wrote:

just got my uBitx V6 assembled, been listening to the receiver on 40m ,it seem to be OK.  decided to check transmitter out, when I plug in the Baofeng mic the radio goes into transmit. after doing some searching on the messages I see there are a lot of issues with the mic and transmitter.  any one know of a message number I need to read.  the ones I read lean toward RF in the shack, right now I have a dummy load on, still happens, I do have a long power cord from a linear power supply, 30".   I have not done any trouble shooting yet, that is next, I am just hoping to get lucky and some one will post my solution.... I got a feeling it does not work that way.
73's
John kg9dk


plugging mic in causes the ubitx V6 to go into transmit mode

John KG9DK
 

just got my uBitx V6 assembled, been listening to the receiver on 40m ,it seem to be OK.  decided to check transmitter out, when I plug in the Baofeng mic the radio goes into transmit. after doing some searching on the messages I see there are a lot of issues with the mic and transmitter.  any one know of a message number I need to read.  the ones I read lean toward RF in the shack, right now I have a dummy load on, still happens, I do have a long power cord from a linear power supply, 30".   I have not done any trouble shooting yet, that is next, I am just hoping to get lucky and some one will post my solution.... I got a feeling it does not work that way.
73's
John kg9dk


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Patrick Ridge
 

On Monday, July 6, 2020, 12:23:15 PM MDT, Arv Evans <arvid.evans@...> wrote:


Tom

I looked at what it might take to make a D-hole punch.  Seems that a 1/2 inch
Grade-8 bolt could be turned to the desired diameter and one side ground flat
to make the D part.  Then turn the end down further and thread it to serve as
the puller threaded part.  The socket end could be drilled smaller than the
D-section of the punch and filed to size and shape, with a thru-hole for the
threaded part of the puller.

Not really a machinist here, but little metal projects do intrigue me.

Arv
_._


On Mon, Jul 6, 2020 at 10:55 AM flatpickn via groups.io <flatpickn=yahoo.com@groups.io> wrote:
Arv,

I've considered making my own. I have a drill press and an arbor press. I've got a good set of greenlee hole punches (the bolt driven punches) but none that are d hole or that small (I think my smallest is 1/2"). I believe greenlee does make d hole punches.

I wonder if Marshal had these fabricated. 

Thanks

Tom
w9kkq


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Arv Evans
 

Tom

I looked at what it might take to make a D-hole punch.  Seems that a 1/2 inch
Grade-8 bolt could be turned to the desired diameter and one side ground flat
to make the D part.  Then turn the end down further and thread it to serve as
the puller threaded part.  The socket end could be drilled smaller than the
D-section of the punch and filed to size and shape, with a thru-hole for the
threaded part of the puller.

Not really a machinist here, but little metal projects do intrigue me.

Arv
_._


On Mon, Jul 6, 2020 at 10:55 AM flatpickn via groups.io <flatpickn=yahoo.com@groups.io> wrote:
Arv,

I've considered making my own. I have a drill press and an arbor press. I've got a good set of greenlee hole punches (the bolt driven punches) but none that are d hole or that small (I think my smallest is 1/2"). I believe greenlee does make d hole punches.

I wonder if Marshal had these fabricated. 

Thanks

Tom
w9kkq


Re: I have a problem with the original bitx20 version #bitx20help #bitx20

Ashhar Farhan
 

there are some creaky bones like us who are stull puffing the ol bitx20. this way before this city came up here. we'd hunt 'em nylon tap washers and cook 20 meters on nights of 2009 cycle.
- f

On Mon, Jul 6, 2020 at 7:26 PM Doug W <dougwilner@...> wrote:
On Sun, Jul 5, 2020 at 04:46 PM,  wrote:
If it were me, I'd get a V6
The original poster is asking about his BITX20, not the µBITX.  Farhan released the µBITX design in early 2017.  It was first available commercially through HF Signals at the end of 2017.  His BITX design, originally in 20m thus the BITX20, was made public around 2003.  HF Signals started selling a BITX40 populated board in what I think was 2016.  Other have also sold pcb's and/or kits over the years with Farhan's blessing and there are lots of home brewed rigs out there as well.  This list goes all the way back to 2004 as it started around the original BITX20.
 
--
www.bitxmap.com


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

flatpickn@...
 

Arv,

I've considered making my own. I have a drill press and an arbor press. I've got a good set of greenlee hole punches (the bolt driven punches) but none that are d hole or that small (I think my smallest is 1/2"). I believe greenlee does make d hole punches.

I wonder if Marshal had these fabricated. 

Thanks

Tom
w9kkq


Re: [[BITX20] Date for publishing Microcontroller Projects for Amateur Radio #tech-books

Christopher Miller
 


It’s good to use the tools attached to the email where you complain about how to mute a topic....

Rofl

On Mon, Jul 6, 2020 at 5:02 AM Bill Cromwell <wrcromwell@...> wrote:
Hi,

I looked around for the means to mute message threads by subject on
groups.io. We apparently cannot do that but there is a hint that we
*can* mute messages by their hashtags. I have added a hashtag to this
thread in hopes that it may help people who have no interest in
reprogramming their radios nor interest in reading such books.

In future I will try to remember to include a hashtag in my messages so
that people who don't like my drivel can mute it.

73,

Bill  KU8H

bark less - wag more

On 7/3/20 9:48 AM, Mike Short wrote:
> It is of interest to me, so thanks for sharing.
>
> On Fri, Jul 3, 2020 at 09:16 Jack, W8TEE via groups.io
> <http://groups.io> <jjpurdum=yahoo.com@groups.io
> <mailto:yahoo.com@groups.io>> wrote:
>
>     My bad. This was supposed to be a private post to Chris. To All: Sorry!
>
>     Jack, W8TEE
>
>     On Friday, July 3, 2020, 2:30:14 AM EDT, MadRadioModder
>     <madradiomodder@... <mailto:madradiomodder@...>> wrote:
>
>
>     This is all fantastic, but a little moot because the book isn’t out.
>
>     *From:*BITX20@groups.io <mailto:BITX20@groups.io>
>     [mailto:BITX20@groups.io <mailto:BITX20@groups.io>] *On Behalf Of
>     *Jack, W8TEE via groups.io <http://groups.io>
>     *Sent:* Thursday, July 2, 2020 9:17 PM
>     *To:* BITX20@groups.io <mailto:BITX20@groups.io>
>     *Subject:* Re: [BITX20] Date for publishing Microcontroller Projects
>     for Amateur Radio
>
>     Hi Chris:
>
>     Doesn't seem like I should post an answer to your question. Perhaps
>     this photo will help answer your question:
>
>     Inline image
>
>     I've also attached a TOC for you.
>
>     Jack, W8TEE
>
>     On Thursday, July 2, 2020, 5:09:05 PM EDT, Christopher Miller
>     <djmalak2k6@... <mailto:djmalak2k6@...>> wrote:
>
>     This looks like an interesting book. Do you have a list of the
>     projects in the book? I’m interested in putting together a TNC and
>     other digital projects.
>
>     Chris
>
>
>     --
>     Jack, W8TEE
>
>
>     <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>     Virus-free. www.avg.com
>     <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
>
>
>     <#m_-7456552391069211989_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
>     --
>
>     …_. _._
>
>     --
>     Jack, W8TEE
>
>




Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

MVS Sarma
 

Perfect practical approach. 



On Mon, 6 Jul 2020, 10:08 pm Mike Czuhajewski via groups.io, <wa8mcq=verizon.net@groups.io> wrote:
I make my own from scrap aluminum sheet. They have a regular hole in the center instead of a d-hole but as long as the BNC connector has a lock washer and is tightened down properly I have never had a problem. Having the d-hole is not absolutely essential.


-----Original Message-----
From: flatpickn via groups.io <flatpickn=yahoo.com@groups.io>
To: BITX20@groups.io
Sent: Mon, Jul 6, 2020 12:23 pm
Subject: [BITX20] D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Does anyone know of a source for these?

I used to buy these from Oak Hills Research, however with Marshal Em's passing you can not order from OHR.

It is just a plate with 4 screw holes spaced to match an SO-239 bulkhead fitting and a d-hole in the middle to fit a BNC bulkhead.
There are other ways to handle this conversion but boy does that little plate make it easy.


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Arv Evans
 

If you have a machinist friend it would be fairly easy for him/her to 
make a D-hole Punch for thin aluminum plate.  Remember old bolt-
driven chassis punches.  Same thing works for punching D-holes.

Arv
_._


On Mon, Jul 6, 2020 at 10:38 AM Mike Czuhajewski via groups.io <wa8mcq=verizon.net@groups.io> wrote:
I make my own from scrap aluminum sheet. They have a regular hole in the center instead of a d-hole but as long as the BNC connector has a lock washer and is tightened down properly I have never had a problem. Having the d-hole is not absolutely essential.


-----Original Message-----
From: flatpickn via groups.io <flatpickn=yahoo.com@groups.io>
To: BITX20@groups.io
Sent: Mon, Jul 6, 2020 12:23 pm
Subject: [BITX20] D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Does anyone know of a source for these?

I used to buy these from Oak Hills Research, however with Marshal Em's passing you can not order from OHR.

It is just a plate with 4 screw holes spaced to match an SO-239 bulkhead fitting and a d-hole in the middle to fit a BNC bulkhead.
There are other ways to handle this conversion but boy does that little plate make it easy.


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Mike Czuhajewski
 

I make my own from scrap aluminum sheet. They have a regular hole in the center instead of a d-hole but as long as the BNC connector has a lock washer and is tightened down properly I have never had a problem. Having the d-hole is not absolutely essential.


-----Original Message-----
From: flatpickn via groups.io <flatpickn@...>
To: BITX20@groups.io
Sent: Mon, Jul 6, 2020 12:23 pm
Subject: [BITX20] D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Does anyone know of a source for these?

I used to buy these from Oak Hills Research, however with Marshal Em's passing you can not order from OHR.

It is just a plate with 4 screw holes spaced to match an SO-239 bulkhead fitting and a d-hole in the middle to fit a BNC bulkhead.
There are other ways to handle this conversion but boy does that little plate make it easy.


D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

flatpickn@...
 

Does anyone know of a source for these?

I used to buy these from Oak Hills Research, however with Marshal Em's passing you can not order from OHR.

It is just a plate with 4 screw holes spaced to match an SO-239 bulkhead fitting and a d-hole in the middle to fit a BNC bulkhead.
There are other ways to handle this conversion but boy does that little plate make it easy.


Re: I have a problem with the original bitx20 version #bitx20help #bitx20

Doug W
 

On Sun, Jul 5, 2020 at 04:46 PM,  wrote:
If it were me, I'd get a V6
The original poster is asking about his BITX20, not the µBITX.  Farhan released the µBITX design in early 2017.  It was first available commercially through HF Signals at the end of 2017.  His BITX design, originally in 20m thus the BITX20, was made public around 2003.  HF Signals started selling a BITX40 populated board in what I think was 2016.  Other have also sold pcb's and/or kits over the years with Farhan's blessing and there are lots of home brewed rigs out there as well.  This list goes all the way back to 2004 as it started around the original BITX20.
 
--
www.bitxmap.com


Re: Ver3 to CEC

Evan Hand
 

Rajesh,
First off, did you follow the suggestions in this message?
https://groups.io/g/BITX20/message/80271

NOTE: Please ignore the typo Arduion, it should have been Arduino.

There is only one file that needs to be loaded into the v3 uBITX Nano with the stock display using the Xloader.  For your situation that would be:
UBITX_CEC_V1.200_16P.hex

The tft files are used by the Nextion display, that you do not have.  They are not loaded with Xloader, rather they are transferred to the Nextion through a microSD card.  

From what I can understand from your messages, you are not seeing the backlight turn on in the stock display.  That is a hardware issue and has nothing to do with software.  If your setup is working EXCEPT for the backlight, you should be able to read text on the display if you shine a light on it at an angle.  You can adjust the contrast with the P2 control on the Arduino.

I believe that you are at the point that the best option would be to find a local club or ham that can help.  I am running out of suggestions for you to be described over the messages board.

Good luck
73
Evan
AC9TU


Re: WSPR no TX #ubitx-help #digital

Evan Hand
 

Thank you Vic!  I did not know that was there.  I will need to give it a try.

73
Evan
AC9TU


Re: Date for publishing Microcontroller Projects for Amateur Radio

Bill Cromwell
 

Hi,

I looked around for the means to mute message threads by subject on groups.io. We apparently cannot do that but there is a hint that we *can* mute messages by their hashtags. I have added a hashtag to this thread in hopes that it may help people who have no interest in reprogramming their radios nor interest in reading such books.

In future I will try to remember to include a hashtag in my messages so that people who don't like my drivel can mute it.

73,

Bill KU8H

bark less - wag more

On 7/3/20 9:48 AM, Mike Short wrote:
It is of interest to me, so thanks for sharing.
On Fri, Jul 3, 2020 at 09:16 Jack, W8TEE via groups.io <http://groups.io> <jjpurdum=yahoo.com@groups.io <mailto:yahoo.com@groups.io>> wrote:
My bad. This was supposed to be a private post to Chris. To All: Sorry!
Jack, W8TEE
On Friday, July 3, 2020, 2:30:14 AM EDT, MadRadioModder
<@MadRadioModder <mailto:@MadRadioModder>> wrote:
This is all fantastic, but a little moot because the book isn’t out.
*From:*BITX20@groups.io <mailto:BITX20@groups.io>
[mailto:BITX20@groups.io <mailto:BITX20@groups.io>] *On Behalf Of
*Jack, W8TEE via groups.io <http://groups.io>
*Sent:* Thursday, July 2, 2020 9:17 PM
*To:* BITX20@groups.io <mailto:BITX20@groups.io>
*Subject:* Re: [BITX20] Date for publishing Microcontroller Projects
for Amateur Radio
Hi Chris:
Doesn't seem like I should post an answer to your question. Perhaps
this photo will help answer your question:
Inline image
I've also attached a TOC for you.
Jack, W8TEE
On Thursday, July 2, 2020, 5:09:05 PM EDT, Christopher Miller
<djmalak2k6@... <mailto:djmalak2k6@...>> wrote:
This looks like an interesting book. Do you have a list of the
projects in the book? I’m interested in putting together a TNC and
other digital projects.
Chris
--
Jack, W8TEE
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Virus-free. www.avg.com
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
<#m_-7456552391069211989_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
--
…_. _._
--
Jack, W8TEE


Re: WSPR no TX #ubitx-help #digital

Vic WA4THR
 

Evan, the CEC firmware allows WSPR in beacon mode for transmitting, but not decoding. You use the Memory Manager program to set your location (you can set 4 different locations), and frequency (3 available), and to set the code for your call and power level. Then you enter the WSPR mode by pushing the tuning knob and selecting WSPR, then select your  location choice and frequency. The 110 second beacon is then initiated  at the top of an even minute by looking at your watch and pressing the PTT. It works fantastic and allows you to get reception reports back on your smart phone or on your computer when you get home with only the rig, a portable power supply, and portable antenna. I have used it as a demo at hamfests, at the beach, and to test different portable antenna options. A very clever addition by Dr. Lee built in to all the later versions of his software.

=Vic=


Re: Ver3 to CEC

rajesh huddar
 

Hi

Thanks for the revert. I use the standard lcd display which comes with the box.

Have uploadrd the corresponding hex files as well.

But still the display does not light up.

Since I have ver3 running currently, ehich is the manager for it. Ver .97 and 1.11 dont seem to be able to read the stock raduino.

On Sun, 5 Jul 2020, 23:53 MVS Sarma, <mvssarma@...> wrote:
Rajesh, did youbuse nextion or 16*2 lcd ?

 Eitherway you have to configure it in ubitx.h file before really uplading. I assume you might have done it.  However try to check . All the best. 
Sarma vu3zmv

On Sun, 5 Jul 2020, 11:27 pm rajesh huddar, <pumerah@...> wrote:
Hi Evan,

Changed baud rate, could read the Nano.
Loaded the display files through the XLoader.
Loaded the CEC software ver 1.20. Compiled and uploaded. Again read it in the manager with the baud rate suggested. Read successfully.

Then tried to connect it in the box. Switched on and no display.

What could be the problem?

The stock raduino which I have does not et read by manager 1.11 and 0.97. Is there any version which can read ver3 software. Tried all the baud rates.




Re: I have a problem with the original bitx20 version #bitx20help #bitx20

Arv Evans
 

Possibly one of the mixer diodes is in backwards. 

The original BITX20 had a very sensitive receiver, which allowed 
spurious signals to be heard if there was no RF input and if the 
volume was turned up way too high.  

What is your MDS (Minimum Discernable Signal) in microvolts?
MDS should be in the 0.2 to 0.4 microvolt range.
If you do not have capability to insert a clean 0.2 to 1.5 microvolt 
signal then ignore that test.   

Like all superhet receivers the BFO frequency needs to be adjusted 
to between 10 and 12 db down the side of the crystal filter passband.
Setting it above the filter passband will give you LSB and setting it 
below the filter passband will give you USB reception.  Setting the 
BFO within the filter passband will give you DSB reception.  If you 
set the BFO too far outside the filter passband your received audio 
will be distorted.  where you adjust the BFO relative to the filter 
passband will affect the amount of highs or lows in your received 
signal, and in your transmitted signal.  

Arv  K7HKL
_._


On Sun, Jul 5, 2020 at 11:37 AM dries breughe <driesbreughe@...> wrote:
i built the bitx20 original version in 2012 but it functioned very badly
I built it clean with a PCB board (not the ugly style)

But the reception was rather deaf. except from unwanted beep tones. I suspect unwanted mixing products.
transmitting did not function
I made some modifications based on version 3 and i used a computer controlled vfo
the noise is louder and the beep signals are still there
does anyone have an idea how to solve this problem


Re: Ver3 to CEC

Bob Lunsford
 

Hello Rajesh....

If you have taken the raduino out and replaced it various times, I'd double check to make sure one of the connecting pins has not missed it's target hole and is folded back where it escapes being seen. And double check the board's supply voltages to the raduino.

Sorry, this is the limit of my technical guess-work.

Bob — KK5R

On Sunday, July 5, 2020, 1:57:32 PM EDT, rajesh huddar <pumerah@...> wrote:


Hi Evan,

Changed baud rate, could read the Nano.
Loaded the display files through the XLoader.
Loaded the CEC software ver 1.20. Compiled and uploaded. Again read it in the manager with the baud rate suggested. Read successfully.

Then tried to connect it in the box. Switched on and no display.

What could be the problem?

The stock raduino which I have does not et read by manager 1.11 and 0.97. Is there any version which can read ver3 software. Tried all the baud rates.




Re: I have a problem with the original bitx20 version #bitx20help #bitx20

Bob Lunsford
 

I'm not trying to be funny but... If it were me, I'd get a V6 and look at that original version as some replacement parts. I know you are determined to make that work but consider the operating time you lose by "re-engineering" that rig.

Bob — KK5R

On Sunday, July 5, 2020, 1:37:06 PM EDT, dries breughe <driesbreughe@...> wrote:


i built the bitx20 original version in 2012 but it functioned very badly
I built it clean with a PCB board (not the ugly style)

But the reception was rather deaf. except from unwanted beep tones. I suspect unwanted mixing products.
transmitting did not function
I made some modifications based on version 3 and i used a computer controlled vfo
the noise is louder and the beep signals are still there
does anyone have an idea how to solve this problem