Date   
Re: The issue I spoke about on the V4 with 20m and CW FCC tests

iz oos
 

Laurence, how much power do you get on CW on the affected band and on 40m? Which SA are you using? Can you add another 20db attenuator to see if there is any changes?


Il 10/mar/2019 23:41, "Laurence Oberman" <oberman.l@...> ha scritto:
Thanks Folks, Curt, I have time tomorrow to take the cover off and
debug some more.
Will report Back.

I tried to reproduce when I first saw it on 20 by repeating the test
on 80, 40, 17 and 15 and did not see it.
However to be honest did not spend a lot of time on the other bands as
I operate 40 and 20 based on my current Antenna setup. For sure its
not there on 40m.
The G5RV needs repair and I have no appetite to go out in the New
England winter and fight with it. :)

Regards
Laurence

On Sun, Mar 10, 2019 at 4:24 PM Curt via Groups.Io
<wb8yyy=yahoo.com@groups.io> wrote:
>
> Laurence
>
> I also grasp your observation that its mostly on one band. On 20m try touching L5 and other toroids to see if they are in the act. Then try another band. We should never assume we are experiencing the same thing as someone else reported, yes I have been guilty here in the past.
>
> Curt
>



Re: BFR93W

Ashhar Farhan
 

If there is sufficient interest, i can post a hundred of BFR93 to some volunteer in the usa who can distribute them domestically.

- f

On Sun 10 Mar, 2019, 6:52 PM MVS Sarma, <mvssarma@...> wrote:
Yiu may see tbe item  w succix was made by siemens. I have the datasheet for same, Allison.

On Sun, 10 Mar 2019, 4:54 am ajparent1/KB1GMX <kb1gmx@... wrote:
BFR93AWH6327XTSA1TR-ND  Digikey about 12 cents.

Mouser has them at about 37 cents each.

ook it up ans BRF93 (no W) as it gets mroe hits and then make sure it is
the right package SOT-23 or 323 as needed.

Very close the BFR106 and many others of that class of device.

Allison

Bitx40 audio screech

mark bodlovich
 

New build bitx40. Rx audio fine untill  volume control turned way down. Then a horrible screeching sound. Maybe needs a resistor across the volume control to give a min load. Idk what do you guys think? Using allards sketch attempting callbration. Things are getting tricky. 

Re: AGC Pre-Oders are in and built!

KE2GKB
 

This is amazing news!  If I could be bold enough to ask for a top down picture ala the build instructions just for our archives would that be a pain?
--
Tim Keller - KE2GKB
https://shop.kit-projects.com

Re: Abandoning my uBitx Ver 3

Joe Puma
 

No reason to stop now, when all is said and done we might be at v20. I got a dollar on it. 😉

 

Btw, I got a V3 and a big case with the 5” Nextion on the way. Its going in its new home. I think we have the right mods now to tame the v3, so I will be giving it a go soon, I already have some work in addressing some of the problem areas. I don’t have a scope so I can only follow instructions that guaranty a improvement. I could probably ghetto rig my SDR and spectrum analyzer program and get a reference of my transmission.

 

Joe

KD2NFC

 

Sent from Mail for Windows 10

 

From: Richard Spohn
Sent: Sunday, March 10, 2019 5:58 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Abandoning my uBitx Ver 3

 

There is going to be a V6 uBitx coming up soon? - Rich WB2GXM

 

On 3/10/19, M0OOZ <geoffcowne@...> wrote:

> Its a shame to give up your built &  fully tested board now?

> Why not buy a V5? Or maybe wait for the new V6?

> May the peace be with you.

> 73

> M0OOZ

> On Sun, 10 Mar 2019, 16:14 William Cullison, <wa8vih@...> wrote:

>> I am giving up on my uBitx as it's just too much for this OM to try

>> completing all the mods needed to have working and legal radio. Surface

>> mount is just too hard with the incessant shaking of my hands. I can

>> handle

>> winding coils and through-hole components without a lot of issues. I

>> appreciate all the great design and modification efforts that have gone

>> into the radio but it just too much for me. As a receiver it's

>> performance

>> is quite good. I will be offering it for sale in the near future. I'm not

>> sure what all I will include in its sale but anything I won't need that

>> was

>> purchased specifically for the uBitx will likely be included.

>> 

>> I will be waiting for the new QSX from QRP-Labs. I built the Ultimate 3S

>> and am very pleased with its performance and feel this is the best move

>> for

>> me. I want to thank everyone for the re-engineering, guidance, and

>> support

>> for here.

>> 

>> 

>

 

 

 

Re: AGC Pre-Oders are in and built!

bill richardson
 

I can now report the the AGC board works great with the V5 board. I got it installed tonight and works like it should.

Thank you


On Mar 8, 2019, at 1:00 PM, KE2GKB via Groups.Io <tkeller@...> wrote:

Looking forward to your results as well! Our hope is that it is still drop I'm compatible with the V5 board and from the pictures we have seen it should be. However like any honest person we definitely want to make sure that it is right before advertising it as such!
During installation on the V5 if there are any questions please just ask!!!
--
Tim Keller - KE2GKB
https://shop.kit-projects.com

Re: Abandoning my uBitx Ver 3

Jerry Gaffke
 

Maybe a v6 will come out in a year or so, maybe never.
For now it is just vague speculation on the part of forum members.
Nothing has ever been said about anything beyond v5 by either Farhan or HFSignals.

The Bitx40 with Raduino first came out in Dec 2016.
It still ships now the same as it did then.

Jerry, KE7ER

 

On Sun, Mar 10, 2019 at 03:58 PM, Richard Spohn wrote:
There is going to be a V6 uBitx coming up soon? - Rich WB2GXM

Re: Abandoning my uBitx Ver 3

Richard Spohn
 

There is going to be a V6 uBitx coming up soon? - Rich WB2GXM

On 3/10/19, M0OOZ <@M0OOZ> wrote:
Its a shame to give up your built & fully tested board now?

Why not buy a V5? Or maybe wait for the new V6?

May the peace be with you.

73

M0OOZ

On Sun, 10 Mar 2019, 16:14 William Cullison, <@Cully> wrote:

I am giving up on my uBitx as it's just too much for this OM to try
completing all the mods needed to have working and legal radio. Surface
mount is just too hard with the incessant shaking of my hands. I can
handle
winding coils and through-hole components without a lot of issues. I
appreciate all the great design and modification efforts that have gone
into the radio but it just too much for me. As a receiver it's
performance
is quite good. I will be offering it for sale in the near future. I'm not
sure what all I will include in its sale but anything I won't need that
was
purchased specifically for the uBitx will likely be included.

I will be waiting for the new QSX from QRP-Labs. I built the Ultimate 3S
and am very pleased with its performance and feel this is the best move
for
me. I want to thank everyone for the re-engineering, guidance, and
support
for here.



Re: separate CAT jack, without using the USB cable #ubitx #cat #raduino #arduino

John (vk2eta)
 

Hello Sascha,

Glad you got it to work. All thanks to your persistence.

Enjoy, and please let us know how it works in practice with the uBitx, it is an interesting solution.

All the best,

73, John

Re: The issue I spoke about on the V4 with 20m and CW FCC tests

Laurence Oberman
 

Thanks Folks, Curt, I have time tomorrow to take the cover off and
debug some more.
Will report Back.

I tried to reproduce when I first saw it on 20 by repeating the test
on 80, 40, 17 and 15 and did not see it.
However to be honest did not spend a lot of time on the other bands as
I operate 40 and 20 based on my current Antenna setup. For sure its
not there on 40m.
The G5RV needs repair and I have no appetite to go out in the New
England winter and fight with it. :)

Regards
Laurence

On Sun, Mar 10, 2019 at 4:24 PM Curt via Groups.Io
<wb8yyy=yahoo.com@groups.io> wrote:

Laurence

I also grasp your observation that its mostly on one band. On 20m try touching L5 and other toroids to see if they are in the act. Then try another band. We should never assume we are experiencing the same thing as someone else reported, yes I have been guilty here in the past.

Curt

Re: v5 board original FW

JohnR
 

Thank you for posting the file Laurence. I will make sure that I do not let it get away from me again.
73 John

Re: No display

KE0HVU
 

Problem solved.  A friend loaned me an original display. I loaded the factory software into it and it worked just fine.  Thanks K0MBT for all your help.  Now I just wait on my QRPGuys antenna to arrive. Should be here tomm or Tues.

73,
KE0HVU

Re: separate CAT jack, without using the USB cable #ubitx #cat #raduino #arduino

Sascha Bohnet | DL5SMB
 

HEUREKA -

It finally works!!!

John, that was the solution - the 1k Resistor in the TX line of the loop controller circuit.

I was a bit afraid of bridging it first , soI changed it to a much smaller value - and finally the voltage dropped low enough so
that the Raduino was able to recognize, decode and answer the incoming signal.

Thanks a lot for your help! I had not really been optimistic that I would be able to make it work. Your insight and advice really made the difference!


And thanks Gary also for your note. That had been one of my first steps, changing the the RX and TX lines.

73

Sascha

Re: BFO Question

JohnR
 

you were right on Ted. I searched for the V1.12 software and it took a little bit but found a Beta version. I uploaded and the radio is working for me now. I had thought that I had the latest CEC software for FW and didn't know to or how to search for it till you gave me something to look for. 
Thank You
73 john

Re: The issue I spoke about on the V4 with 20m and CW FCC tests

Curt
 

Laurence

I also grasp your observation that its mostly on one band. On 20m try touching L5 and other toroids to see if they are in the act. Then try another band. We should never assume we are experiencing the same thing as someone else reported, yes I have been guilty here in the past.

Curt

Re: Abandoning my uBitx Ver 3

Curt
 

Bill

Glad you are still building with the challenge.

On QSX, I found the QCX to be quite dense. Labels too small out of necessity for space. No problem. I matched part locations from screen to board with Hans fantastic documentation.

On ubitx, it can be modified with minimal change to the board.  The gotcha now is few kits to make the fixes, until some merchants emerge. My ubitx has only a relay daughter board, a little LC filter and now a simple AGC. I might even stop with these.

Enjoy your journey.

Curt

Re: The issue I spoke about on the V4 with 20m and CW FCC tests

ajparent1/kb1gmx
 

It is but not as visible. 

If the output filters are less than correct it gets worse.   Also if you pushing
power the LPFs will show heating effects remember 10W max even then
your pushing it.  

CW mode is a square wave driive so the harmonic content like previously
discussed is about 20db greater than for SSB not push to clipping

Allison

Re: お願いします

Dexter N Muir
 

From Google Translate Japanese:
Re: Please
Yes, it is.

お願いします, English here

Re: The issue I spoke about on the V4 with 20m and CW FCC tests

Laurence Oberman
 

Thanks a lot Allison
Just wondering why the same heating issue is not there on other bands.
Regards
Laurence

On Sun, Mar 10, 2019, 2:59 PM ajparent1/KB1GMX <kb1gmx@...> wrote:
Both cases come from the same source, heating in the amplifier usually the pre-driver
and driver stages but it can include the finals.

Its not thermal stable and parts do heat up and their bias shifts.

Allison

Re: Abandoning my uBitx Ver 3

M0OOZ
 

Its a shame to give up your built &  fully tested board now?

Why not buy a V5? Or maybe wait for the new V6?

May the peace be with you. 

73

M0OOZ

On Sun, 10 Mar 2019, 16:14 William Cullison, <wa8vih@...> wrote:
I am giving up on my uBitx as it's just too much for this OM to try completing all the mods needed to have working and legal radio. Surface mount is just too hard with the incessant shaking of my hands. I can handle winding coils and through-hole components without a lot of issues. I appreciate all the great design and modification efforts that have gone into the radio but it just too much for me. As a receiver it's performance is quite good. I will be offering it for sale in the near future. I'm not sure what all I will include in its sale but anything I won't need that was purchased specifically for the uBitx will likely be included.

I will be waiting for the new QSX from QRP-Labs. I built the Ultimate 3S and am very pleased with its performance and feel this is the best move for me. I want to thank everyone for the re-engineering, guidance, and support for here.