Date   
Re: kd8cec software

Bill Cromwell
 

Hi David,

Welcome. I have a Version 3 uBitX and I started using it completely unmodified. There is no need to make any modifications unless you want *more* and of course pay *more*. I made a modification to mine that tames the unbearably loud sidetone in the CW mode. If you don't use CW you can ignore that. The version has questionable harmonic suppression, I use external filters to make mine cleaner. That is not a mod to the radio but is a mod to operating practices. Except that I have always done that:)

The recommendation is to get your uBitX (or any other kit) working as designed first and after you see that everything works pick and choose mods that might work for you. I use the CEC software but the radio itself is unchanged and can be returned to original by simply loading the original software. It sounds as though you like the bigger, color, touch display. I find the original display adequate.

Enjoy your uBitX. Merry Christmas and...

73,

Bill KU8H

On 12/5/19 10:51 PM, David Alexander wrote:
having just walked in the door a couple of days ago, there seems to be quite a bit of mods that can be made to the ubix radios. my question is where does one start to add the lcd displays to this radio using the kd8cec software.
whats necessary hardware wise to use the nextion displays?  what is necessary for the software also?
thanks
dave k7da
--
bark less - wag more

Re: uBitX as a Shortwave Receiver?

Sudipta Ghose VU2UT
 

For hard core SWLs 5kHz BW is sufficient for their purpose.
73 de EssGee VU2UT

On Fri, Dec 6, 2019 at 10:53 AM MVS Sarma <mvssarma@...> wrote:
The am content being mono in most countries, with ham's skill to be able to tune ssb, am listening on any side band is not a big issue. We may not need specific am or synchronus detector.  As rightly pointed out bt Farhan, we may not get 10khz on medium and 5khz on shortwave. The audio I hear is reasonable for me. 

Sarma vu3zmv

On Fri, 6 Dec 2019, 7:30 am Ashhar Farhan, <farhanbox@...> wrote:
I use it to do that often. However, it is not very great for music as the crystal filter is quite narrow. You can easily add an AM detector at 45 mhz by using an NE612 as an active AM detector. The output can be fed into the volume control.

- f

On Fri 6 Dec, 2019, 5:55 AM Mike Dice via Groups.Io, <regenbuilder=yahoo.com@groups.io> wrote:
I have read over the info about the uBitX on HFSigs. I understand it receives LSB and USB, but there is no mention of it being capable of receiving AM. I am considering getting one to use primarily to listen to what's left on shortwave. Is that possible?

Thanks, Mike





--
One of those ... ...

Re: A minor bug in the ubitx circuit

Evan Hand
 

Russ,

The side tone is generated by the Raduino Nano and fed to the audio.  The CW signal to the power amp is from the Raduino Si5351 VFO direct.  The BFO is disabled during CW transition. 

Sp a low side tone is just that the setting is lower in the Nano. 


73
Evan
AC9TU

Re: uBitX as a Shortwave Receiver?

MVS Sarma
 

The am content being mono in most countries, with ham's skill to be able to tune ssb, am listening on any side band is not a big issue. We may not need specific am or synchronus detector.  As rightly pointed out bt Farhan, we may not get 10khz on medium and 5khz on shortwave. The audio I hear is reasonable for me. 

Sarma vu3zmv

On Fri, 6 Dec 2019, 7:30 am Ashhar Farhan, <farhanbox@...> wrote:
I use it to do that often. However, it is not very great for music as the crystal filter is quite narrow. You can easily add an AM detector at 45 mhz by using an NE612 as an active AM detector. The output can be fed into the volume control.

- f

On Fri 6 Dec, 2019, 5:55 AM Mike Dice via Groups.Io, <regenbuilder=yahoo.com@groups.io> wrote:
I have read over the info about the uBitX on HFSigs. I understand it receives LSB and USB, but there is no mention of it being capable of receiving AM. I am considering getting one to use primarily to listen to what's left on shortwave. Is that possible?

Thanks, Mike



kd8cec software

David Alexander
 

having just walked in the door a couple of days ago, there seems to be quite a bit of mods that can be made to the ubix radios. my question is where does one start to add the lcd displays to this radio using the kd8cec software.
whats necessary hardware wise to use the nextion displays?  what is necessary for the software also?

thanks
dave k7da

Re: uBitX as a Shortwave Receiver?

Ashhar Farhan
 

I use it to do that often. However, it is not very great for music as the crystal filter is quite narrow. You can easily add an AM detector at 45 mhz by using an NE612 as an active AM detector. The output can be fed into the volume control.

- f

On Fri 6 Dec, 2019, 5:55 AM Mike Dice via Groups.Io, <regenbuilder=yahoo.com@groups.io> wrote:
I have read over the info about the uBitX on HFSigs. I understand it receives LSB and USB, but there is no mention of it being capable of receiving AM. I am considering getting one to use primarily to listen to what's left on shortwave. Is that possible?

Thanks, Mike



Re: A minor bug in the ubitx circuit

Ashhar Farhan
 

Russ,
The dashes dont seem long enough on the sidetone though they are transmitted properly. The dashes sound like blips. What is happening is that as a number of square waves pass through the filters caps, they charge up to an average of 2.5v (average of 0 and 5v). The 2.5v DC at the input of the LM386 DC saturates the chip and the audio input stops being amplified. The caps diacharge as soon as the sidetone ceases. The cycle repeats in the next dash. The dots are small enough to be finished before the DC rises enough to saturate the LM386.
- f

On Fri 6 Dec, 2019, 6:17 AM Russ KR0EHM, <russ@...> wrote:
How does this problem manifest itself? Just no CW tone at all or something else? My CW is working on relatively new v5 board so wanted to make sure. I’ve noticed it is a bit lower than I expect it to be (100-200 Hz) but that could be my BFO off, correct?

Re: A minor bug in the ubitx circuit

Russ KR0EHM
 

How does this problem manifest itself? Just no CW tone at all or something else? My CW is working on relatively new v5 board so wanted to make sure. I’ve noticed it is a bit lower than I expect it to be (100-200 Hz) but that could be my BFO off, correct?

uBitX as a Shortwave Receiver?

Mike Dice
 

I have read over the info about the uBitX on HFSigs. I understand it receives LSB and USB, but there is no mention of it being capable of receiving AM. I am considering getting one to use primarily to listen to what's left on shortwave. Is that possible?

Thanks, Mike

Re: Nextion Question

Mark Hatch
 

Dennis,

You need to looks at the buffers that go back and forth between the Nextion and the Raduino. Quite frankly, I never really figured them out because there is limited comment in the code. So not going to be a lot of help here.

There are some basic definitions in the code (this is a command, this should be the last buffer sent, etc.)   And then you are going to see how they are uninterpreted on the Nextion side. (you will need to download the Nextion editor) to see how the buffers are interpreted there.

Much different than the typical interaction between Nextion and a Auduino script.

Sorry, cannot be more help.

Mark

Re: Nextion Question

Dennis
 

Hi Mark,
I'm trying to use the CEC software.

Dennis

nextion noise 2.5mh choke

talmadge huckabee
 

just to let everybody know that a good source for the nextion  noise reducer  choke (2.5mh)
is to get a toroid (FT114_43) from kitsandparts.com and wind 70 turns of #22 wire on in, it  has about 1 ohm
of resistance so it will not have much voltage drop (will not dim nextion display) 

Re: A minor bug in the ubitx circuit

paul_hvidston
 

After further review, I would recommend a series combination of R253 and a 0.1 uF cap, otherwise you are changing the side tone level and shunting the received audio by 0.05 uF (series string of added cap and C252). This may also improve possible "thumping" in the mute circuit due to the DC bias from the side tone.

72 de N6MGN

Re: standalone signal analyzer firmware hex file

talmadge huckabee
 

ok thanks


-----Original Message-----
From: N8DAH <Dherron@...>
To: BITX20 <BITX20@groups.io>
Sent: Thu, Dec 5, 2019 12:20 pm
Subject: Re: [BITX20] standalone signal analyzer firmware hex file

Talmadge, my mistake.
Bob, try kit-projects.com for now I just changed hosts working out a few bugs
--
David

Re: Bitx40 AGC Has arrived (bit late I know)

RICHARD
 

Looks like it worked that time an paypal has paid you. Thanks

 

Sent from Mail for Windows 10

 

From: KE2GKB via Groups.Io
Sent: Wednesday, December 4, 2019 8:33 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Bitx40 AGC Has arrived (bit late I know)

 

Sent you an Email so we can figure out whats going on! 

 

On Wed, Dec 4, 2019 at 11:21 PM RICHARD <k6kwq@...> wrote:

Something is wrong with your site it will not let me order one with paypal.  Please save me one

 

Sent from Mail for Windows 10

 

From: N8DAH
Sent: Wednesday, December 4, 2019 8:06 PM
To: BITX20@groups.io
Subject: [BITX20] Bitx40 AGC Has arrived (bit late I know)

 

A bit later than we had wanted but we are now offering a AGC solder in mod for the Bitx40 Radios!

https://shop.kit-projects.com/index.php?route=product/product&path=59&product_id=123
73
--
David

 N8DAH
Kit-Projects.com

Shop is open!

 


--
Tim Keller - KE2GKB
https://shop.kit-projects.com

 

Re: Bitx40 AGC Has arrived (bit late I know)

 

Try login and look in your cart and clear it before you try again.

If that don't work let me know we can work something else out.

We did check the site and all is in working order.
--
David

 N8DAH
Kit-Projects.com

Shop is open!

Re: Bitx40 AGC Has arrived (bit late I know)

RICHARD
 

Tried again now its trying to sell me 3 of them   Help

 

Sent from Mail for Windows 10

 

From: KE2GKB via Groups.Io
Sent: Wednesday, December 4, 2019 8:33 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Bitx40 AGC Has arrived (bit late I know)

 

Sent you an Email so we can figure out whats going on! 

 

On Wed, Dec 4, 2019 at 11:21 PM RICHARD <k6kwq@...> wrote:

Something is wrong with your site it will not let me order one with paypal.  Please save me one

 

Sent from Mail for Windows 10

 

From: N8DAH
Sent: Wednesday, December 4, 2019 8:06 PM
To: BITX20@groups.io
Subject: [BITX20] Bitx40 AGC Has arrived (bit late I know)

 

A bit later than we had wanted but we are now offering a AGC solder in mod for the Bitx40 Radios!

https://shop.kit-projects.com/index.php?route=product/product&path=59&product_id=123
73
--
David

 N8DAH
Kit-Projects.com

Shop is open!

 


--
Tim Keller - KE2GKB
https://shop.kit-projects.com

 

Re: standalone signal analyzer firmware hex file

 

Talmadge, my mistake.

Bob, try kit-projects.com for now I just changed hosts working out a few bugs

--
David

 N8DAH
Kit-Projects.com

Shop is open!

Re: Constant loud hum or buzz on receive #ubitx-help #v5

Gavin
 

Thanks for all the suggestions so far! I will try them out and see what I come up with. Hopefully I'll figure it out and post back to say what I had to do.

Re: #uBitx #v4 and #sdr panadapter #ubitx #v4 #sdr

Cory King
 

Hey David,

Just got one of those G4HUP adapters.  Any chance you could post pics of how you installed it?