Date   
V6 AGC

 

The V6 is confirmed working with the AGC. Install is the same as other versions. The only change is just like the V4's you must tap the back of R70 as pictured,10ohm resistors are available upon request in the order comments for this tap.

https://shop.kit-projects.com/index.php?route=product/product&product_id=101

73

--
David

 N8DAH
Kit-Projects.com

Shop is open!

Re: V5 arrived in time for Christmas - wish I had known about v6 #v5

Jim Willis
 

Excellent post, Arv!

 

From: BITX20@groups.io <BITX20@groups.io> On Behalf Of Arv Evans
Sent: Saturday, December 28, 2019 4:25 PM
To: BITX20@groups.io
Subject: Re: [BITX20] V5 arrived in time for Christmas - wish I had known about v6 #v5

 

Alex  W5ALX

 

At 78 years old I share some of your concerns.  The earlier BITX and now the uBITX

units include working with smaller components, different components, and different

techniques than what we did in older times. 

 

(1)  Do a Google search for images of component names that you do not recognize.

That is the electret microphone that you ask about.  You will need to solder leads to the

two solder pads shown.  One of those solder pads is connected to the shell (use a

magnifying glass).  Brace your hands on the work surface to steady yourself and

maybe clamp the device to keep it from moving. 

 

(2)  Electret microphones contain an internal FET amplifier that needs power to function.

Checking the schematic for your uBITX you will see a resistor and capacitor that make

up the power-T for powering the electret mike.  Electret microphones normally put out

up to 45 millivolts of signal voltage.  Older crystal microphones might provide similar

outputs but a dynamic microphone probably will not.  If using a dynamic microphone

you will probably need a DC blocking capacitor to keep the electret voltage from

damaging your dynamic microphone.  Since the electret microphone pulls down on

the voltage supply resistor you may need to add a resistor across the microphone that

helps to center this voltage in order to preserve full waveform audio at the mike input.

 

(3)  Antenna matching is more critical with MOS-FET finals than it was with tubes.

Your antenna should be pre-tuned so that it provides close to a 50 ohm impedance at

your operating frequency (all your operating frequencies).

 

Hope some of this has been helpful.  Us old timers have to stick together if we are to

survive in the new electronics environment.

 

Arv  K7HKL

_._

 

 

On Sat, Dec 28, 2019 at 1:50 PM Alex Netherton <anetherton@...> wrote:

Hi folks. W5ALX here, name is Alex. Just got a v5 in December, and started to build it. Wow. My eyes and hands are 68 3/4 YO, and though I consider myself "intermediate" (licensed in 1979, now Amateur Extra Class), I am a small bit daunted by this kit.
I do like it, but it is slow going. A few questions, which I am sure have been answered ad nauseum, but I cannot find the answers.

First, the microphone. I have what I think is the mic in the kit, but it has no leads. 

There it is, on the solder roll. It has no leads! I do not know if, with my eyes and hands (they shake a little) if I can get leads on it. Anyone have any experience?

Next, must the mic be electret, or is the radio compatible with dynamic mics? Thinking a big old D-104 "Chicken Choker" (no not really), but no, I do have an old Radio Shack mic that went to one of their Ham rigs of the 1980's, which I think to be electret, but not sure. It has the Icom/Kenwood/BaoFeng type plugs.
I look forward to getting it on the air, and as soon as I can, I am buying the V6 already assembled!
TIA for any and all input, and please be gentle with this "Old Timer" - the last kit I worked on had large "transistors" made of glass, and the connector strips were big enough to wrap a 14 ga wire around before soldering!
73 es GUD DX.
W5ALX

Re: New uBITX Ver. 6 Assembled Today

Bill
 

On Sat, Dec 28, 2019 at 01:01 AM, Ashhar Farhan wrote:
Check that your BFO is properly set. Use this tool : https://www.hfsignals.com/index.php/bfo-tuning-aid/
This bfo-tuning-aid page doesn't work.  When I open it with Chrome it pops up a notification that says "www.hfsignals.com says Error".  When I open with FF it shows the same page without the error, but still doesn't work.  Screenshot attached.

 - Bill

Re: V5 arrived in time for Christmas - wish I had known about v6 #v5

Arv Evans
 

Alex  W5ALX

At 78 years old I share some of your concerns.  The earlier BITX and now the uBITX
units include working with smaller components, different components, and different
techniques than what we did in older times. 

(1)  Do a Google search for images of component names that you do not recognize.
That is the electret microphone that you ask about.  You will need to solder leads to the
two solder pads shown.  One of those solder pads is connected to the shell (use a
magnifying glass).  Brace your hands on the work surface to steady yourself and
maybe clamp the device to keep it from moving. 

(2)  Electret microphones contain an internal FET amplifier that needs power to function.
Checking the schematic for your uBITX you will see a resistor and capacitor that make
up the power-T for powering the electret mike.  Electret microphones normally put out
up to 45 millivolts of signal voltage.  Older crystal microphones might provide similar
outputs but a dynamic microphone probably will not.  If using a dynamic microphone
you will probably need a DC blocking capacitor to keep the electret voltage from
damaging your dynamic microphone.  Since the electret microphone pulls down on
the voltage supply resistor you may need to add a resistor across the microphone that
helps to center this voltage in order to preserve full waveform audio at the mike input.

(3)  Antenna matching is more critical with MOS-FET finals than it was with tubes.
Your antenna should be pre-tuned so that it provides close to a 50 ohm impedance at
your operating frequency (all your operating frequencies).

Hope some of this has been helpful.  Us old timers have to stick together if we are to
survive in the new electronics environment.

Arv  K7HKL
_._


On Sat, Dec 28, 2019 at 1:50 PM Alex Netherton <anetherton@...> wrote:
Hi folks. W5ALX here, name is Alex. Just got a v5 in December, and started to build it. Wow. My eyes and hands are 68 3/4 YO, and though I consider myself "intermediate" (licensed in 1979, now Amateur Extra Class), I am a small bit daunted by this kit.
I do like it, but it is slow going. A few questions, which I am sure have been answered ad nauseum, but I cannot find the answers.

First, the microphone. I have what I think is the mic in the kit, but it has no leads. 

There it is, on the solder roll. It has no leads! I do not know if, with my eyes and hands (they shake a little) if I can get leads on it. Anyone have any experience?

Next, must the mic be electret, or is the radio compatible with dynamic mics? Thinking a big old D-104 "Chicken Choker" (no not really), but no, I do have an old Radio Shack mic that went to one of their Ham rigs of the 1980's, which I think to be electret, but not sure. It has the Icom/Kenwood/BaoFeng type plugs.
I look forward to getting it on the air, and as soon as I can, I am buying the V6 already assembled!
TIA for any and all input, and please be gentle with this "Old Timer" - the last kit I worked on had large "transistors" made of glass, and the connector strips were big enough to wrap a 14 ga wire around before soldering!
73 es GUD DX.
W5ALX

Re: V5 arrived in time for Christmas - wish I had known about v6 #v5

Curt
 

Alex

Take your time to enjoy the build. V4 here about to get an integral audio filter.

V5 is plenty fine, and I don't mind using LCD.

Likely your radio shack mic will work. I am using an old kenwood speaker mic. Try that RS mic first. Some report low audio drive, but mine is fine.

That little mic was supplied for folk without radio stuff collected. Let's put it aside,  along with its tiny ptt switch.

I was running a skcc cw pileup with my ubitx last evening, yes I do occasionally call folk, even dx, on ssb with it.

Not sure what mic connector you have for ubitx? I cut end off my mic cord and installed 4 pin connector that came with my case.

73 curt wb8yyy

Re: uBitx Digi-Interface Module (Add-on Board)

Alex Netherton
 

He says he doesn't think that is for sale anymore, and you cannot order, and he is getting a V6 in a few weeks.
*Translated by Google.*

V5 arrived in time for Christmas - wish I had known about v6 #v5

Alex Netherton
 

Hi folks. W5ALX here, name is Alex. Just got a v5 in December, and started to build it. Wow. My eyes and hands are 68 3/4 YO, and though I consider myself "intermediate" (licensed in 1979, now Amateur Extra Class), I am a small bit daunted by this kit.
I do like it, but it is slow going. A few questions, which I am sure have been answered ad nauseum, but I cannot find the answers.

First, the microphone. I have what I think is the mic in the kit, but it has no leads. 

There it is, on the solder roll. It has no leads! I do not know if, with my eyes and hands (they shake a little) if I can get leads on it. Anyone have any experience?

Next, must the mic be electret, or is the radio compatible with dynamic mics? Thinking a big old D-104 "Chicken Choker" (no not really), but no, I do have an old Radio Shack mic that went to one of their Ham rigs of the 1980's, which I think to be electret, but not sure. It has the Icom/Kenwood/BaoFeng type plugs.
I look forward to getting it on the air, and as soon as I can, I am buying the V6 already assembled!
TIA for any and all input, and please be gentle with this "Old Timer" - the last kit I worked on had large "transistors" made of glass, and the connector strips were big enough to wrap a 14 ga wire around before soldering!
73 es GUD DX.
W5ALX

Re: uBitx Digi-Interface Module (Add-on Board)

Joe Puma
 

Can someone translate this for me please 😊

 

Joe

KD2NFC

 

Sent from Mail for Windows 10

 

From: rmvanb@...
Sent: Friday, December 27, 2019 2:02 AM
To: BITX20@groups.io
Subject: Re: [BITX20] uBitx Digi-Interface Module (Add-on Board)

 

Volgens mij biet meer te koop, denk ik uit de orde. Groeten,
Rene,
Ps over een paar weken krijg ik mijn V6 !!

 

Re: V5 Vs V6

Ken Hansen
 

I sold an unbuilt V5 kit to partially fund a complete with case V6 purchase.

As I understand, the V6 board is essentially the V5 board, but where you used to have solder pads, you now have all connectors attached, and only two items need to be plugged in, the encoder and the speaker.

The case is nice, the build is simple, but the economics of selling the unbuilt V5 board are a bit abusive. The current market price is $95, shipped. Shipping in US will be about $10-15, so you'll have $80 after sale, meaning you'll have to pay an additional $130 to get a complete V6 kit.

The V6 kit is a simple build, less than an hour by most reports, and aside from a few software oddities, a nice radio.

I have no regrets, very happy with my decision to get the V6 kit.

Ken, N2VIP

On Dec 28, 2019, at 12:42 PM, Richard Lawn <rjlawn@...> wrote:

In October I purchased a V5 kit from Gigaparts and it has sat in the box ever since waiting for free time to build it. I just saw that there is a complete V6 kit now available and I'm wondering what  advantages the new V6 has over 5. I may sell my V5 kit and go for the newer model. Help me decide please.
TNX 73 es Happy New Year
Rick, W2JAZ
--
Rick, W2JAZ

Re: UBITX speaker

Ken Hansen
 

The instructions on plugging in the speaker are here:


Specifically Step 8

HTH,

Ken, N2VIP

On Dec 28, 2019, at 10:29 AM, Bob Bennett via Groups.Io <bobsmacbox@...> wrote:



I got mine working but I remember from the other ones I built that there is a way to mute the speaker when the headphones are plugged in. There were no instructions on how to do this, or even how to plug in the speaker. 


Bob NZ2Z 

Re: uBITX v6 Received

Dennis Zabawa
 

I have added a new folder to the files Section (V6Mods - KG4RUL) to document my mods to my V6 uBITX.  The first item I have added is a rough layout for the front panel mods.  This includes the addition of a SOTABEAM Variable Bandwidth Filter Module and a Kit-Projects, uBITX AGC board.  
 
The SOTABEAM filter will be controlled by three pushbuttons instead of the supplied rotary encoder.  The buttons will be monitored by an Arduino Nano.  The SEL button will switch between changing the Center Frequency (CF) or Bandwidth (BW) of the filter.  The UP and DN (Down) buttons will change the current parameter accordingly.  Actual control of the filter board will be accomplished by the Nano emulating the actions of a rotary encoder.
 
For the installation of the Kit-Projects, uBITX AGC board, I will be using a 2 Pole, 3 Position (2P3T) slide switch in place of the supplied toggle switch.
 
I also plan to add an ATC fuse in-line with the power cord for safety.  I am looking into using one of the Analog-to-Digital-Converters (ADC) of the Nano to monitor the air temperature in the case.  When the temperature gets critical, I will energize a small fan, controlled by the Nano via a MOSFET, added to the back panel.  There is also the possibility of adding an SWR bridge and monitoring it with the filter control Nano during transmit.  The Filter display could be co-opted for SWR display.

73 - KG4RUL

Re: Version 6 Software

Ashhar Farhan
 

The V6 was never taken off the github
- f

On Sun 29 Dec, 2019, 12:07 AM Dennis, <dennis@...> wrote:
My new display should be here any day now. Will the version 6 software be back on github soon? Would like to try it out on my v5 uBitx.

Kind Regards,
73, Dennis W7DRW

Re: V5 Vs V6

Evan Hand
 

Following is my personal opinions.  Others can and will have a differing one.

If I did not have 2 v4 and a v5, then I would get the v6, as it is now the only one available from HF Signals.

The v6 includes a graphical touch screen, though so far I have only seen it being used as a keypad input with numbers and texts (though color text).  It currently does not have the functionality of the KD8CEC software with a Nextion display.

The price of the full kit (includes the case) is approx. $200 US.

If you want a graphical interface, and currently have one of the stock v3, v4, or v5, I would buy the Nextion display and a case.  That would be approx $75 US for all that you would need (Can be lower if you shop around for the display and make your own case from a universal case).

There is some small software changes, however the main board is pretty much the same as the v5.

As stated above, if you already have a v5, I would go the Nextion/CEC route.

If you have a pre v5, then you may want the v6 (remember v5 is not available from HF Signals), as there are harmonics and spurs that need to be corrected in the v3 and v4 boards.

So what do you want to do with the kit?  Build and modify (pre v6) or mostly operate and wait or develop mods of your own (I am sure there will be mods beyond the AGC and Digital modes that would work on all).

Bottom line is no real RF performance gains as far as the main board is concerned.

Still a good rig at the $200 price.  I would have gone that route if I did not have the other 3 boards.

FWIW
73 and Happy New Year!
Evan
AC9TU

V5 Vs V6

Richard Lawn <rjlawn@...>
 

In October I purchased a V5 kit from Gigaparts and it has sat in the box ever since waiting for free time to build it. I just saw that there is a complete V6 kit now available and I'm wondering what  advantages the new V6 has over 5. I may sell my V5 kit and go for the newer model. Help me decide please.
TNX 73 es Happy New Year
Rick, W2JAZ
--
Rick, W2JAZ

Version 6 Software

Dennis
 

My new display should be here any day now. Will the version 6 software be back on github soon? Would like to try it out on my v5 uBitx.

Kind Regards,
73, Dennis W7DRW

Re: REPLACEMENT RADUINO

Ashhar Farhan
 

Pse write to hfsignals@...


On Sat 28 Dec, 2019, 8:54 PM , <dgclifford@...> wrote:
HI Ashar   do you sell are placement raduino board think mine is dead many thanks  davec

Re: New uBITX Ver. 6 Assembled Today

Ashhar Farhan
 

The instructions are on the website. 
Look at step 8

On Sat 28 Dec, 2019, 10:05 PM Bob Bennett via Groups.Io, <bobsmacbox=yahoo.com@groups.io> wrote:
There were no instructions on where to plug in the speaker. Also from previous models when the headphones were plugged in the speaker was muted.

Bob NZ2Z 

Re: UBITX speaker

MVS Sarma
 

Just plug in the stereo earphones at low volume  And the speaker is cut automatically as pervthe v6 sch. 
All the best Bob.

Sarma vu3zmv

On Sat, 28 Dec 2019, 9:59 pm Bob Bennett via Groups.Io, <bobsmacbox=yahoo.com@groups.io> wrote:

I got mine working but I remember from the other ones I built that there is a way to mute the speaker when the headphones are plugged in. There were no instructions on how to do this, or even how to plug in the speaker. 


Bob NZ2Z 

Re: New uBITX Ver. 6 Assembled Today

Bob Bennett
 

There were no instructions on where to plug in the speaker. Also from previous models when the headphones were plugged in the speaker was muted.

Bob NZ2Z 

Re: New uBITX Ver. 6 Assembled Today

Bert N8NN
 

Ashhar -- I set the frequency using WWV.  It is correct now to 0.20.  With a little more effort I may get it to 0.00.  For the BFO I tuned it by ear because I could not find the cellphone app on the website you gave me.  Thanks for the suggestions!  

Joel -- Thanks for the WWV recommendation.  It worked!

73, Bert N8NN