Date   
Re: UBITx V4 Low audio output 80-40-20 #audiocircuit

_Dave_ AD0B
 

I used a surplus computer speaker/amp. Since the input of this unit is usually a headphone jack, line out, I used  the speaker output to drive it.

Removed all the controls, power, volume and external jacks to make the board more compact. Set the gain of the amp board mid way with fixed resistors. Found a spot on the left side of the indian cabinet and wired and bolted it on stand offs. The cabinet drills easily . The headphone jack is still at the same level but the speaker is much louder. Not sure of the brand or anything.  Was in a junk box.

To keep it simple just use a computer amp/speaker without modification and plug it into the headphone jack. 
--
73
Dave
ADOB
Raduino bracket and Ham_Made_Keys

Re: UBITx V4 Low audio output 80-40-20 #audiocircuit

Vic WA4THR
 

I built and installed the audio amp/AGC circuit that was in the July QST article last year. Using it as a preamp was done by inserting it ahead of the volume control and making a few minor changes. Now I am totally satisfied with the volume level and the AGC may be better than any of my commercial rigs.

However, if you want a quick, prebuilt and simple solution, just feed the audio output to an amplified speaker like is sold for computers.

=Vic=

Re: BITX 40 Kit Build #bitx40help #bitx40

David Wilcox
 

This kind explanation is great!  Keep it up for those of us who are a little dense.  I wish my wife would give instructions this clear in a voice my old ears would adequately hear.

David J. Wilcox K8WPE’s iPad

On Apr 10, 2020, at 1:15 AM, Tom, N8TPN <tsadamski@...> wrote:

Hope this helps...

73, Tom - N8TPN
<Bitx40_Modules_Tuning_Pot.png>

Re: BITX 40 Kit Build #bitx40help #bitx40

M0OOZ
 

Honestly, my advice is to get the bitx fired up and working without the case. Once you're happy with it, then addressing the issues of mounting it within that case will be trivial. 

73

May the peace be with you. 

M0OOZ


On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: uBITX Version 6 construction manual #ubitx #v6

Rene
 

On Thu, Apr 9, 2020 at 04:05 PM, Jim Sheldon wrote:
Since there have been a few posts on people having occasional troubles assembling the V6 "Full Kit" and for some reason they don't seem to be able to find the instructions (plain sight) on HF Signals website, I took the time to write up a fairly comprehensive construction manual for the V6 and did this while actually assembling the last one I bought.

I took photos during the process and tried to show the major points to help keep people out of trouble doing what should be a really straight-forward build.  I sent the PDF file to Ashhar Farhan who liked it and asked if they could print and include it with every kit they sold.  I gave him that permission but then the COVID 19 Virus hit and everyone is locked down.

Here is the PDF of that manual for anyone that needs it and I'm also going to upload it to the Files section of this group.

It will also be available on the TSW website, www.w0eb.com in the files section under "documentation" to make it fairly easy to find.  The manual is NOT copyrighted and may be freely reproduced/distributed but if you do, please leave it intact and submit any suggested changes or improvements to me (the author/photographer) via email direct (w0eb at cox dot net).

Thanks and I hope this helps clarify the build of this pretty decent kit.  Also, for the information of all, I have NO affiliation with HF Signals whatsoever, and I purchase the uBITX kit(s) just like everyone else at the full price on the website.


Jim Sheldon, W0EB
TSW Project Coordination

 Okay, nice work but if there are some diffrences are with the measuring like mine, screen and arduinodoes not fit wel, i have to pull up the screen from the mainboard aprox 5 to 6 mm, maybe some contacts wil not work wel😏😏 but then again, nice work. Regards
Rene
Netherlands

Re: BITX 40 Kit Build #bitx40help #bitx40

Tom, N8TPN
 

Hope this helps...

73, Tom - N8TPN

Re: BITX 40 Kit Build #bitx40help #bitx40

Arv Evans
 

He just asked for an explanation.  Sometimes just a simple answer is 
adequate.  Please try to stay on-topic

_._

On Thu, Apr 9, 2020 at 2:18 PM M0OOZ <geoffcowne@...> wrote:
Alternatively build a cold war sandwich. 602 →xtal filter → 602

On Thu, 9 Apr 2020, 22:09 geoff cowne, <geoffcowne@...> wrote:
Why not wait until the new newer than new ubitx2020?

On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: BITX 40 Kit Build #bitx40help #bitx40

Arv Evans
 

One way the knob will turn right to increase frequency.  The opposite way the knob will turn left to increase frequency.  Which way does your client want it to work?

_._

On Thu, Apr 9, 2020 at 2:08 PM Aaron K5ATG via groups.io <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: BITX 40 Kit Build #bitx40help #bitx40

Allard PE1NWL
 

Yes this has changed with newer verions and it may indeed be confusing,
On the newer Raduino's, the 5-pin connector shall be connected to the right side of the 16 pins line.

See also this posting: https://groups.io/g/BITX20/message/66263

Hope this helps.
73 Allard PE1NWL

Re: BITX 40 Kit Build #bitx40help #bitx40

Aaron K5ATG
 

Thank you. 
I have now ran into something that is confusing. On the HF Signals website, on the BitX40 Wireup step three it shows this pic

Looking on the back of the Raduino Assembly it shows an 8 Pin connector at the top of the board and a 5 pin connector on the bottom of the board. On the radio that I am working on, it does not have the 5 pin connector on the bottom but it has 16 pins that come out of the board in the location of the 5 pin connector, then all of the 16 pins turn 90 degrees downward. Is this something that has changed with different versions? I believe that the one I am working on is version 3. 

Re: BITX 40 Kit Build #bitx40help #bitx40

Allard PE1NWL
 

Hi Aaron,

The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control.
This is viewed from the backside of the tuning control.

73 Allard PE1NWL

Re: BITX 40 Kit Build #bitx40help #bitx40

Aaron K5ATG
 

Its not mine, I’m building it for a friend.

 

72

Aaron K5ATG

K5ATG Blog

 

From: M0OOZ
Sent: Thursday, April 9, 2020 3:10 PM
To: BITX20@groups.io
Subject: Re: [BITX20] BITX 40 Kit Build #bitx40help #bitx40

 

Why not wait until the new newer than new ubitx2020?

 

On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:

I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

 

Re: BITX 40 Kit Build #bitx40help #bitx40

M0OOZ
 

Alternatively build a cold war sandwich. 602 →xtal filter → 602


On Thu, 9 Apr 2020, 22:09 geoff cowne, <geoffcowne@...> wrote:
Why not wait until the new newer than new ubitx2020?

On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: BITX 40 Kit Build #bitx40help #bitx40

M0OOZ
 

Much appreciated that you do build the best offering from Farhan


On Thu, 9 Apr 2020, 22:12 geoff cowne, <geoffcowne@...> wrote:
In other words, sort it out guv! This is not hard and the bitx40 is de puts madré


On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: BITX 40 Kit Build #bitx40help #bitx40

M0OOZ
 

In other words, sort it out guv! This is not hard and the bitx40 is de puts madré


On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: BITX 40 Kit Build #bitx40help #bitx40

M0OOZ
 

Why not wait until the new newer than new ubitx2020?


On Thu, 9 Apr 2020, 22:08 Aaron K5ATG via groups.io, <k5atg=yahoo.com@groups.io> wrote:
I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

BITX 40 Kit Build #bitx40help #bitx40

Aaron K5ATG
 

I'm putting together a BITX40 kit from HF Signals for a friend. It has an enclosure that looks like it came from Amateur Radio Kits. I'm at the point of connecting wires to the Tuning Control. The instructions on HF Signals says to put the green wire on the left side tuning control and the yellow wire on the right side of the tuning control. When speaking of the left and right sides of the tuning control is the view from the knob side of the tuning control or the backside of it? 

Re: Ubitx V5 Low audio and No SSB #v5 #ubitx-help

Evan Hand
 

Praba Karan,

If you used a different Nano to upgrade to the KD8CEC software, then you will need to recalibrate.  The calibration data from the factory is stored in the EEPROM, which is not saved/uploaded with the software.  Also, each board set is different, so you need to recalibrate anytime you change the Nano for a given board.

I would start with the BFO calibration to verify that it is correct.  I have used the following webpage with Chrome and a USB (or laptop) mic:
https://www.hfsignals.com/index.php/bfo-tuning-aid/

You want to adjust more towards the "high" side, as that reduces any carrier bleed through.  Note that the BFO should be close to 11.055500 MHz, as the SSB filter is 11.059 MHz.  For my board 11.055600 MHz was about right.

There is also the Memory Manager software from KD8CEC that I have found useful in being able to save the current settings prior to making changes, then to save again as I get closer to what I want.
https://github.com/phdlee/ubitx/releases/tag/v1.11

73
Evan
AC9TU

Re: uBITX V6 For Sale

D C
 

Bob, is your V6 still available?    contact me at my email if it is

don

On Tue, Apr 7, 2020 at 7:33 PM Bob WB8CAC <currently@...> wrote:
Have my assembled and aligned V6  with original 6.1.  No mods.  Made several CW contacts with it.  Never going to get around to making any improvements.  $175 Paypal.  Includes shipping anywhere in US.

Re: Ubitx V5 Low audio and No SSB #v5 #ubitx-help

Arv Evans
 

Karan

Those Bafeong microphones are what I was thinking about when I mentioned opening the audio hole in the case.  They are notorious for having too small a hole or having the hole offset from the microphone position.  Some persons have even replaced the original Bafeong electret element with the larger electret that came with the uBITX.

Arv
_._


On Thu, Apr 9, 2020 at 10:50 AM Praba Karan <vu3dxr@...> wrote:
I am using modified bafeong speaker mic