Date   

Bitx 20 front panel

wa6mdi2@...
 

Hi Folks,

Just finished my first attempt at the Bitx 20 today.    At the risk of appearing stupid, but I need to make sure before I put power to the unit.   If were looking at the front panel the small jacks from left to right are the mike, key and ear phones?

Do I have that right.  

Also what size fuse is everyone using?   3 amp enough?

Thanks,

Dick, wa6mdi
Trophy Club TX


Re: Setup menu uBitx V6 codeV6.1

John KG9DK
 

Forget the question I asked.... I found it..... what was making it hard was the amount of time I had to hold the encoder in.  I also read (since  this question has been asked several times) to hold the encoder in right after turn on and CW selected... plus I now know it takes several seconds... for the set up menu to come up.... 
john kg9dk


Setup menu uBitx V6 codeV6.1

John KG9DK
 

OK, now that I got the mic cable fixed, I am on to checking the power out.  I would like to use mic and the CW selection.  Where I am at now is when I push the mic button with CW on I get a dot dot dot .......dot .  I was expecting a continuous tone.  I am wondering if I got the straight key selected.  From the uBitx V6 Operations page it indicates I can select a straight key from the set up menu.  I have not been able to find where I can select a straight key from the display menu assuming that is the setup menu.   How do get to that selection???  thanks in advance
john kg9dk


Re: Anyone used the ELEKITSORPARTS digital interface board? Opionons? #ubitx #digital

Peter McCracken
 

Hi all,

I have the amateuradiokits case which has its own front panel pcb the audio1 header on the v6 connects into this which in turn connects to the external audio amp supplied with the case. In terms of installing the digiboard I assume splicing into the loom from the audio header to the pcb is probably the best option ?


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

flatpickn@...
 

I have had a few work loose and bnc's are the worst because you have to take the enclosure apart to reach inside to hold the backside of the connector to get the cable loose. Fuse holders are the second worst, becuase they're plastic so you can only tighten them so far and when they spin you know your swinging a hot wire around inside the case (generally not a problem but the thought is still there). 

I have stripped a few components, both pots and bnc connectors. Never broken one that I can think of. Not by overtightening at least, but with some of the cheap stuff showing up on the market it is easy to see it happening. I've had some old stuff crumble but I think that was the pot metal deteriorating. 

Tom 
w9kkq


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

flatpickn@...
 

I do use lock washers on controls/connectors, like the amatuer radio kits enclosure has all round holes so there is no choice. No big deal, I don't fret about it.

It's just that Marshall had such an elegant solution to the problem, it is almost a shame not to use it. It looks good whether the plate is inside the enclosure or outside the enclosure, although I usually like it best inside the enclosure. 


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Bill Cromwell
 

Hi Allison,

I have seen a couple of them in soft aluminum that were mounted in a round hole. I don't who installed them but they worked loose withe repeated plug/unplug cycles. They would turn in the hole and then twisted the wires off inside the radios. I don't recall if there were star washers or lock washers used. Probably not. Aluminum comes in grades and the softer aluminum is not very sturdy for radios that are used in mobile or portable operation.

73,

Bill KU8H

bark less - wag more

On 7/7/20 7:38 AM, ajparent1/kb1gmx wrote:
I do not bother.
I drill a .375" hole and use the locking hardware provided.  Never seen
one fall or jump out of the hole.
Allison
---------------------------------
No direct email, it goes to bit bucket due address harvesting in groups.IO


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Bill Cromwell
 

Hi,

I have been disappointed when a couple of *cheap*, cheap, cheep imported, die-cast, through-hole BNC connectors broke with even modest tightening. Never mind about any kind of "super" tightening. Those broke off. Another one stripped the threads and could not be tightened. All of them went to scrap, some still in their packages. Be careful with those 300 foot-pound torque wrenches and beaker bars! Even the higher quality parts are small.

73,

Bill KU8H

bark less - wag more

On 7/6/20 11:30 PM, Bob Lunsford via groups.io wrote:
Tom, when I worked for the government, we had the D-shaped punches but I never wondered at what price they came to us. $200 I can believe, all things considered. Even $100 is a bone-cruncher for me for something I may use a half-dozen times.
I'll use the star lock washer and use a flat washer under the nut. I will then crank down on the nut and assume the connector will never have to come off. If anyone did this followed by a drop of super glue AFTER super tightening, I'd have to go looking for doubts that it's not coming off. For me, the simplest way to go that works has the most merit.
Bob — KK5R


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

ajparent1/kb1gmx <kb1gmx@...>
 

I do not bother.

I drill a .375" hole and use the locking hardware provided.  Never seen
one fall or jump out of the hole.

Allison
---------------------------------
No direct email, it goes to bit bucket due address harvesting in groups.IO


Re: plugging mic in causes the ubitx V6 to go into transmit mode

Gordon Gibby
 

Good work 
This is part of being a ham. 



On Jul 7, 2020, at 00:36, John KG9DK <jab3739@...> wrote:


Greetings all,  I think I found the problem with the mic.  I took it apart and found at the plug end, where clamp was cutting into the PTT wire.  I am going to repair it tomorrow  by cutting the mic cable off and re solder it and re clamp the mic cable.  I will let you know how it goes may be able to post some photos.  Thanks for all the comments.
john kg9dk


Re: plugging mic in causes the ubitx V6 to go into transmit mode

John KG9DK
 

Greetings all,  I think I found the problem with the mic.  I took it apart and found at the plug end, where clamp was cutting into the PTT wire.  I am going to repair it tomorrow  by cutting the mic cable off and re solder it and re clamp the mic cable.  I will let you know how it goes may be able to post some photos.  Thanks for all the comments.
john kg9dk


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Bob Lunsford
 

Tom, when I worked for the government, we had the D-shaped punches but I never wondered at what price they came to us. $200 I can believe, all things considered. Even $100 is a bone-cruncher for me for something I may use a half-dozen times.

I'll use the star lock washer and use a flat washer under the nut. I will then crank down on the nut and assume the connector will never have to come off. If anyone did this followed by a drop of super glue AFTER super tightening, I'd have to go looking for doubts that it's not coming off. For me, the simplest way to go that works has the most merit.

Bob — KK5R

On Monday, July 6, 2020, 10:55:15 PM EDT, flatpickn via groups.io <flatpickn@...> wrote:


Patrick, 

The base on that one is too small. The SO-239 has a plate that is one inch square with the small holes about 3/4" apart.The base on the bnc you show is only about 3/4" square. 

Gary,

That's a good answer. At $6 a pop, ouch. But it's workable. Marshal sold 2 plates and 2 bnc connectors for $7.50. Still not cheap but better than $12 a pair. If I am not wanting to spend time out in the shop (no heat or air) purchasing them as a unit would be the way to go.

I bought a piece of 1" x 1/8" flat bar today. I can cut it up repeatably on the bandsaw. Then build a jig with two fences and a clamp to safely drill the holes on the drill press. Although, filing the D just takes forever. 1/8 aluminum won't be as bad as steel though. I only need three right now but I'll probably make 5.

Thanks to W9THC, he lead me down some search paths where I figured out that a blank Neutric panel might fit. And you can buy them with the d hole already in them. Although, all that I have found on the net so far are made of plastic, but I'll keep looking.

Bob, those knock out punches are nice, but they're too big for what we're talking about. I have a similiar set of Greenlees that I picked up used here and there. The D for a bnc is about 3/8" and 1/4" would be about right if your going to file the D. I did look for D panel punches, they run over $200 new. That means they'll be $100 or better on the used market.

Thanks

Tom 
w9kkq


Re: plugging mic in causes the ubitx V6 to go into transmit mode

Bob Lunsford
 

I have no tried it yet but from another V6 user's hint in this forum, I opened the mic case and opened the little hole for the eletret element up to 1/8th-in. I may also replace the eletret with an amplified element if that fix has no merit. I will use the mic case for another mic circuit if all other fixes do not work. there are other things going on circuit-wise with the mic so any mods may require disconnecting everything in the microphone and using the microphone body to house another mic circuit. If nothing else, the mic does look good.

Have others here experienced good things with no or little modification using the mic supplied with the V6 full kit? This would indicate to me that massive rearrangement in the microphone may not be necessary.

Bob — KK5R

On Monday, July 6, 2020, 10:48:54 PM EDT, Jeff Debes <jeff.debes@...> wrote:


John ,

The shipped Baofeng mics are next to worthless in the context of the V6 rig.
There was a thread talking about use of a Pro Com amplified CB mic which provided reliable operation and far better audio vs the Baofeng. I purchased one and it works very  well. 
 I have since received many reports about its excellent  audio.  
I’ve worked a number of European stations using the new mic and a simple 20 meter wire vertical ground plane antenna. 
Bitx V6 is only about 5-6 watts at 20 meters.
I’d recommend setting aside the Baofeng .
Best wishes for success in your endeavor.

Jeff
AC2JB 



On Jul 6, 2020, at 4:21 PM, Bob Lunsford via groups.io <nocrud222@...> wrote:


I was fooled with a plug once that is the same used on the Baofeng microphone until I realized I was not pushing the mic plug in all the way. Quick fix.

Bob — KK5R

On Monday, July 6, 2020, 3:13:17 PM EDT, Gordon Gibby <docvacuumtubes@...> wrote:


So, start with the basics. Read the voltage on the push to talk pin of the jack, and see what happens to it when you plug that mic in.

If it goes to zero, you are shorting it out somehow.

Proceed methodically and systematically from that point to find out where it got shorted to ground.  

This is regular old ham radio, a chance to learn and practice techniques of figuring things out

Gordon 



On Jul 6, 2020, at 15:06, John KG9DK <jab3739@...> wrote:

just got my uBitx V6 assembled, been listening to the receiver on 40m ,it seem to be OK.  decided to check transmitter out, when I plug in the Baofeng mic the radio goes into transmit. after doing some searching on the messages I see there are a lot of issues with the mic and transmitter.  any one know of a message number I need to read.  the ones I read lean toward RF in the shack, right now I have a dummy load on, still happens, I do have a long power cord from a linear power supply, 30".   I have not done any trouble shooting yet, that is next, I am just hoping to get lucky and some one will post my solution.... I got a feeling it does not work that way.
73's
John kg9dk

--
jeff.debes@...


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

flatpickn@...
 

Patrick, 

The base on that one is too small. The SO-239 has a plate that is one inch square with the small holes about 3/4" apart.The base on the bnc you show is only about 3/4" square. 

Gary,

That's a good answer. At $6 a pop, ouch. But it's workable. Marshal sold 2 plates and 2 bnc connectors for $7.50. Still not cheap but better than $12 a pair. If I am not wanting to spend time out in the shop (no heat or air) purchasing them as a unit would be the way to go.

I bought a piece of 1" x 1/8" flat bar today. I can cut it up repeatably on the bandsaw. Then build a jig with two fences and a clamp to safely drill the holes on the drill press. Although, filing the D just takes forever. 1/8 aluminum won't be as bad as steel though. I only need three right now but I'll probably make 5.

Thanks to W9THC, he lead me down some search paths where I figured out that a blank Neutric panel might fit. And you can buy them with the d hole already in them. Although, all that I have found on the net so far are made of plastic, but I'll keep looking.

Bob, those knock out punches are nice, but they're too big for what we're talking about. I have a similiar set of Greenlees that I picked up used here and there. The D for a bnc is about 3/8" and 1/4" would be about right if your going to file the D. I did look for D panel punches, they run over $200 new. That means they'll be $100 or better on the used market.

Thanks

Tom 
w9kkq


Re: plugging mic in causes the ubitx V6 to go into transmit mode

Jeff Debes
 

John ,

The shipped Baofeng mics are next to worthless in the context of the V6 rig.
There was a thread talking about use of a Pro Com amplified CB mic which provided reliable operation and far better audio vs the Baofeng. I purchased one and it works very  well. 
 I have since received many reports about its excellent  audio.  
I’ve worked a number of European stations using the new mic and a simple 20 meter wire vertical ground plane antenna. 
Bitx V6 is only about 5-6 watts at 20 meters.
I’d recommend setting aside the Baofeng .
Best wishes for success in your endeavor.

Jeff
AC2JB 



On Jul 6, 2020, at 4:21 PM, Bob Lunsford via groups.io <nocrud222@...> wrote:


I was fooled with a plug once that is the same used on the Baofeng microphone until I realized I was not pushing the mic plug in all the way. Quick fix.

Bob — KK5R

On Monday, July 6, 2020, 3:13:17 PM EDT, Gordon Gibby <docvacuumtubes@...> wrote:


So, start with the basics. Read the voltage on the push to talk pin of the jack, and see what happens to it when you plug that mic in.

If it goes to zero, you are shorting it out somehow.

Proceed methodically and systematically from that point to find out where it got shorted to ground.  

This is regular old ham radio, a chance to learn and practice techniques of figuring things out

Gordon 



On Jul 6, 2020, at 15:06, John KG9DK <jab3739@...> wrote:

just got my uBitx V6 assembled, been listening to the receiver on 40m ,it seem to be OK.  decided to check transmitter out, when I plug in the Baofeng mic the radio goes into transmit. after doing some searching on the messages I see there are a lot of issues with the mic and transmitter.  any one know of a message number I need to read.  the ones I read lean toward RF in the shack, right now I have a dummy load on, still happens, I do have a long power cord from a linear power supply, 30".   I have not done any trouble shooting yet, that is next, I am just hoping to get lucky and some one will post my solution.... I got a feeling it does not work that way.
73's
John kg9dk

--
jeff.debes@...


Re: plugging mic in causes the ubitx V6 to go into transmit mode

Skip Davis <skipdaviscta@...>
 

John start with your Ohm meter and check ring to sleeve on the mic plug. Don’t just look for a short here look to see if there is any resistance, it should be infinite on the higher scales. If it isn’t it could be pulling the PTT pin low enough to look like a switch closure thus sending it into transmit.
On the plug Tip is mic audio/bias, Ring is PTT, and Sleeve is common/ground for the microphone.

Skip Davis, NC9O


Re: Adding SOTABEAMS LASERBEAM-VARI Digital Variable Audio f\Filter Module to Your BITX/uBITX

Peter McCracken
 

Hi Dennis,

Do you have videos of this in operation or pics of the setup, I purchased one of these DSPs and fancy having a crack at this setup.

Thanks!

Best regards, Peter.


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Bob Lunsford
 

The first suggested option was less than $4 which to me is the better way to go UNLESS the flange is hobgobbled and not plated professionally. Seems there is a price to everything, though, an indication of the true value of the Dollar.

Bob — KK5R

On Monday, July 6, 2020, 5:13:48 PM EDT, Lawrence Galea <9h1avlaw@...> wrote:



On Mon, Jul 6, 2020 at 10:59 PM Bob Lunsford via groups.io <nocrud222=yahoo.com@groups.io> wrote:
The hole in the SO-234 flange has to be reamed/drilled out unless you go to small hardware. I have also used screws that were forced into the hole so no nut was necessary.

Many connectors have as many methods of mounting as there are options for making it easier or a more secure mounting. Even pop rivets can be used but this often leaves the possibility of a bad ground connection developing later as was sometimes found on cheap CB SWR/Wattmeters sold years ago. One more thing to keep in mind. I often run a [short] ground jumper from the connector to a good ground but if good/plated star lockwashers are used and if the hardware is adequately tightened, this possibility can be put out of mind.

Bob — KK5R

On Monday, July 6, 2020, 4:45:45 PM EDT, Rick Green <rtg@...> wrote:


On Mon, 6 Jul 2020, Bob Lunsford via groups.io wrote:

>
> At $3.92, it looks like a good deal to me.
>
> BNC Female Chassis Mount Connector - Square
>
  The mounting flange on those is smaller than a SO239, with closer hole
spacing, so the existing mounting holes for the SO239 must be elongated into
radial slots in order to mount the BNC.

  --
Rick Green  N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
  Citizens United ruling, and move to amend our Constitution to firmly establish
  that money is not speech, and that human beings, not corporations, are persons
                        entitled to constitutional rights.

            http://www.MoveToAmend.org






Re: Unpopulated board

Gary Anderson
 

The Wiki has pictures, consider a rebuild to the section per Allison's mod.
https://groups.io/g/BITX20/wiki/7528
Rgds,
Gary


Re: D hole plate to fit SO-239 bulkhead hole - SO-239 to BNC conversion

Lawrence Galea
 


On Mon, Jul 6, 2020 at 10:59 PM Bob Lunsford via groups.io <nocrud222=yahoo.com@groups.io> wrote:
The hole in the SO-234 flange has to be reamed/drilled out unless you go to small hardware. I have also used screws that were forced into the hole so no nut was necessary.

Many connectors have as many methods of mounting as there are options for making it easier or a more secure mounting. Even pop rivets can be used but this often leaves the possibility of a bad ground connection developing later as was sometimes found on cheap CB SWR/Wattmeters sold years ago. One more thing to keep in mind. I often run a [short] ground jumper from the connector to a good ground but if good/plated star lockwashers are used and if the hardware is adequately tightened, this possibility can be put out of mind.

Bob — KK5R

On Monday, July 6, 2020, 4:45:45 PM EDT, Rick Green <rtg@...> wrote:


On Mon, 6 Jul 2020, Bob Lunsford via groups.io wrote:

>
> At $3.92, it looks like a good deal to me.
>
> BNC Female Chassis Mount Connector - Square
>
  The mounting flange on those is smaller than a SO239, with closer hole
spacing, so the existing mounting holes for the SO239 must be elongated into
radial slots in order to mount the BNC.

  --
Rick Green  N8BJX

We, the People of the United States of America, reject the U.S. Supreme Court's
  Citizens United ruling, and move to amend our Constitution to firmly establish
  that money is not speech, and that human beings, not corporations, are persons
                        entitled to constitutional rights.

            http://www.MoveToAmend.org