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

 

Checked BFO calibration which appeared to be correct.
Both low audio and carrier leak are interconnected?

On Fri 10 Apr, 2020, 12:52 AM Evan Hand, <elhandjr@...> wrote:
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:


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.


73
Evan
AC9TU

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

Richard West
 

Hi Dave,

i never thought to use to use this approach. Matter of fact, have a set of amplified speakers in storage. Currently using a non-Amplified speaker box with very marginal results. I know my XYL is very tired of seeing me work on this project, and others. Her response has been, ?"why don't you buy a "good" radio and enjoy it?" My response has been "Well, want to use what I have, and not put out more money for another unit." Do have the trusty TS-440SAT in the shack since about 2000 or so. Did try a XIEGU G1M but it suffered a power event failure, and is buried in it's box as unrepairable.

73,

Wes/KH2EE
Re: UBITx V4 Low audio output 80-40-20 #audiocircuit

Richard West
 

Hi Vic,

Thank you for your lead in QST. Will gave to do the research. Not really handy building things with sight declining. Last project cost more in rebuild time and parts than the inop unit was worth. I hate to tell you the actual amount of time spent on building the V4 that was supposed to be an evening project. Still not satisfied with my calibration results either. Getting older has it's downside too.
Re: UBITx V4 Low audio output 80-40-20 #audiocircuit

Richard West
 

Hi Rubens,

Thank you for the lead. Will check it out!

73,

Wes/KH2EE
Re: BITX 40 Kit Build #bitx40help #bitx40

 

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Thank you Tom, yes it helps.

?

72

Aaron K5ATG

?

From: Tom, N8TPN
Sent: Friday, April 10, 2020 12:15 AM
To: [email protected]
Subject: Re: [BITX20] BITX 40 Kit Build #bitx40help #bitx40

?

Hope this helps...

73, Tom - N8TPN

?

6C1D4418978145AB9053C946F5A3F75B.png
B4399F6859F94AA3AB1D1AADA8A03B75.png

Re: BITX 40 Kit Build #bitx40help #bitx40

 

¿ªÔÆÌåÓý

Thanks for the advice. The issue that I had as far as the case was wiring the tuning control and that has been resolved. ?

?

72

Aaron K5ATG

?

From: M0OOZ
Sent: Friday, April 10, 2020 1:45 AM
To: [email protected]
Subject: Re: [BITX20] BITX 40 Kit Build #bitx40help #bitx40

?

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 , <k5atg=[email protected]> 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??

?

3DF76E261B73447DAC2272A19B277319.png
00985DEA0A3E48558384200B11B4D5A7.png

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

 

Ricard, good morning, I'm from Brazil, Ilha Solteira, a barrageiros village in the interior of the state of S?o Paulo. I have an uBITX v4, and I don't hear anything on the normal audio output, I needed to put a speaker box. I installed the uBITX v4 card, a kit
? audio amplifierTDA2030A (5-pin). 73 by Rubens PY2PVB
--
Sauda??es fraternais, 73/51 PY2PVB

Rubens Kamimura
Tel. (18) 3746-8680 ramal 116
Cel. (18) 9-9819-2225 WhatsApp ou (18) 9-9819-2255?


Em qui., 9 de abr. de 2020 ¨¤s 13:27, Richard West via <rewest71=[email protected]> escreveu:

I know this issue has been addressed many times, and I need some hardware, not theory to enjoy the fruits of my labor. My bench is a small desk with a VOM, and loads of hope to actually see what is necessary to work on electronic circuitry. No complaint with the audio output on the AM band, but gets dicey trying to listen to CW in the upper ether. Hearing is not all that good as before. Any ready built or kits that would beat the low audio output in the upper bands? Sure would appreciate it. Thank you. 73/KH2EE

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

 

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

 

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

 

¿ªÔÆÌåÓý

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

 

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 , <k5atg=[email protected]> 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, 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

 

Hope this helps...

73, Tom - N8TPN

Bitx40_Modules_Tuning_Pot.png

Re: BITX 40 Kit Build #bitx40help #bitx40

 

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 ¡úxtal filter ¡ú 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 , <k5atg=[email protected]> 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

 

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 <k5atg=[email protected]> 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

 

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: /g/BITX20/message/66263

Hope this helps.
73 Allard PE1NWL
Re: BITX 40 Kit Build #bitx40help #bitx40

 

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

 

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

 

¿ªÔÆÌåÓý

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

?

72

Aaron K5ATG

?

From: M0OOZ
Sent: Thursday, April 9, 2020 3:10 PM
To: [email protected]
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 , <k5atg=[email protected]> 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??

?

EC207BD77ADF412E8270286ADB780B5B.png
66C861B0A44C4584B5F176993E10367B.png

Re: BITX 40 Kit Build #bitx40help #bitx40

 

Alternatively build a cold war sandwich. 602 ¡úxtal filter ¡ú 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 , <k5atg=[email protected]> 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??

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