Date   

Re: Raduino board with Si5351, Arduino Nano with code loaded.

Curt
 

I imagine they may be scarce. Watch for a complete bitx or an older ubitx being offered.
Be patient,  as some aren't always motivated to sell what they crafted.

73 curt


Re: Initialization problems for uBitx 6.1

Dale Parfitt
 

At last  count, only 313 of  us have made the same error- enjoy the rig.

 

Dale W4OP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of rsmit32@...
Sent: Sunday, May 31, 2020 3:47 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Initialization problems for uBitx 6.1

 

You nailed it Dale!  Thanks.  I guess I was going too fast!

Regards,

Ronnie 
WB5KLM


Re: What’s actually better?

 

Well,

I was looking at a datasheet that had both the 2219 and 2219A listed and there was a difference between the two:

https://www.onsemi.com/pub/Collateral/2N2219-D.PDF

I usually try to research things a bit before I post them.  Did I get it wrong?


Mark


Re: What’s actually better?

ajparent1/kb1gmx <kb1gmx@...>
 

Mark,

Your speculating on a created phantom.  The 2n2219 is a 2222A in a TO5 can
vs to18 same Die.

Datasheet enclosed for both from the same vendor!

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


Re: Initialization problems for uBitx 6.1

Ronnie
 

You nailed it Dale!  Thanks.  I guess I was going too fast!

Regards,

Ronnie 
WB5KLM


Re: Initialization problems for uBitx 6.1

Dale Parfitt
 

Hi Ronnie,

Make certain your encoder is plugged into the socket on top of the Raduino and NOT the identical socket on the UBitx PCB.

 

Dale W4OP

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of rsmit32@...
Sent: Sunday, May 31, 2020 3:15 PM
To: BITX20@groups.io
Subject: [BITX20] Initialization problems for uBitx 6.1

 

Hi! 
I just got a new full uBitx v6.1 kit.

I followed all assembly instructions per the HF signals website.  The assembled unit display comes on when power is applied and the volume control is turned on. 

I can toggle some functions from the touch screen, ie., change USB to LSB, directly input a frequency, etc., but I'm not really hearing anything from the receiver.

The vfo dial will not work to change the frequency at all.  Loud pings come from the speaker when I rotate the vfo.  Also, I cannot get the unit to go into setup mode for calibration.

Has anyone else seen this behavior before for a new unit?  Am I missing something simple?

Any suggestions are greatly appreciated!

73,

Ronnie 
WB5KLM


Initialization problems for uBitx 6.1

Ronnie
 

Hi! 
I just got a new full uBitx v6.1 kit.

I followed all assembly instructions per the HF signals website.  The assembled unit display comes on when power is applied and the volume control is turned on. 

I can toggle some functions from the touch screen, i.e., change USB to LSB, directly input a frequency, etc., but I'm not really hearing anything from the receiver.

The vfo dial will not work to change the frequency at all.  Loud pings come from the speaker when I rotate the vfo.  Also, I cannot get the unit to go into setup mode for calibration.

Has anyone else seen this behavior before for a new unit?  Am I missing something simple?

Any suggestions are greatly appreciated!

73,

Ronnie 
WB5KLM


Raduino board with Si5351, Arduino Nano with code loaded.

Glen Jenkins WB4KTF
 

Hi,
I have an older BITX40 that did not come with the RADUINO.  Does anyone have the Raduino board with Si5351, Arduino Nano with code loaded and working that is ready to use?
I want to try this with my BITX40.
Please contact me off the group so as not to bother everyone.
wb4ktf@...
--
Glen, WB4KTF, Austin, TX


Re: How install Sotabeams Variable Bandwidth Filter inside uBITX V. 5 #filters #v5 #bitx20

R. Tyson
 

Hi,

Having seen your later message I now see you have the variable bandwidth filter.
That should be very good, my filter is the one with 2 filters for CW - a less complicated filter.

Judging by the performance of my simpler filter, which can pick out a single weak CW signal from all the noise and louder stations, then yours should give an excellent performance.

Good luck,

Reg            G4NFR


Re: #cat #ubitxv6 #cat #ubitxv6

s53c.lado@...
 

Thanks Evan, for time being your reply is just what I needed, so thank you very much.
I already got ubitx and already have it working. My first impressions are good. But I already have a list of improvements in my mind. Major thing will be to ad an audio filter, because the selectivity is like something I remember from 1964 wen I got my licence, so now I am to spoiled for that. Next thing is that I'll try to figure the way to ad AGC, preferably before audio chain. I'll also have a look into firmware to see if I can do something about CW operation which is not really good right now.
W0EB (and friends) solution to replace Arduino nano with Teens 4 also seems interesting, but I'll leave that for later, after I've done the improvements, that I have in mind.
73, Lado, S53C


Re: #cat #ubitxv6 #cat #ubitxv6

Evan Hand
 

s53c.lado,

First off, I have been on this board for over 2 years and still do not know how to do searches that produce results.  Often it is better to let Google search on the web to find the results on the board.

As far as I know, all of the stock versions since v4 have included CAT capabilities.  I do not have version 6 so I cannot give you specifics for that version.  I do use the CAT capability for my v4 and v5 rigs. You can use Yeasu FT-817 or FT-857.  Both have worked for me with digital mode (WSJT-X) software.  It works with CAT PTT, 38400 baud, 8 bits, and defaults for others.

You can get the source code for the stock firmware (latest) from Ashhar Farhan's GitHub account.  He is the author and primary designer of the ubitx.  Here is the link:
https://github.com/afarhan/ubitxv6

As far as upgrades, there are too many to enumerate them all.  If you have already ordered/received a ubitx, then the first step is to get it working.  After that, it will depend on what you want to do with the rig.  There are mods that fix the shortcomings for CW, others that are focused on the digital modes, and still others that open up enhanced software capabilities that would be up to you to program and use.  All are valide depending on what you want to do.  There is another thread where I listed what I would do if I bought a new v6: 
https://groups.io/g/BITX20/message/79394

One place to start for possible upgrades might be ubitx.net.  That site seems to have the most information on the past mods as well as possible changes.  Another is HamsKey.co, the blog of the KD8CEC author.

The ubitx, like this board, has huge possibilities.  It does take some research and forethought to make it what you want it to be.  For the price, there is nothing else that I know of for multi-band SSB kits.  There are some that have been promised, however, they are still not available.  No date has been announced yet.

Above are my thoughts based on my experiences.  Yours may and can be different.
Enjoy the hobby!
73
Evan
AC9TU


#cat #ubitxv6 #cat #ubitxv6

s53c.lado@...
 

1) New to groups.IO. Groups software not very friendly. Search very strange ... Getting a lot of hits, but not very useful ones...
2) New to ubitxv6 too. Unable to find stock firmware docs. Does that exists anywhere? First question (and probably not last): is there support for CAT in stock firmware (documented, if possible)? Links please..
3) There seem to be some non-stock firmwares around. Any of those for v6 hardware?? Links please ...

Sorry if i repeat some preexisting questions, but my searchers ended up nowhere. Maybe it'll get better if I manage to adjust to gorups.IO searching.


bitx40 v3 and ubitx v3 for sale

Mervyn Northover <grandadmervyn@...>
 

have bitx40 version 3 and ubitx v3 for sale 
still in plastic boxes they was sent in ...
never been assembled
looking for £35 for bitx40 
£65 for ubitx
will post to UK only
regards
Merv


Re: Odd (and non-functional) #RX behavior #rx #v5

Evan Hand
 

Tim,

2 things:
1 - did the rig ever work?  It is always best to get the stock rig to work before you do any modifications.  Since you have already installed the KD8CEC software and it is working do not go back.
2 - Get the Memory Manager software from GitHub:  https://github.com/phdlee/ubitx/releases/tag/v1.11 then use it to see where the calibrations are at this point.  If you go to the HamsKey.com blog, you should be able to find instructions on how to use the Memory Manager.

Once you have the software up and running, connect it to the ubitx and read the current calibration values in the rig.  The calibration value is not so important at this time.  The BFO value is.  It should be somewhere around 11.0550 MHz.  If it is very far from this value (more than 20kHz, then set it to 11.055500 as a starting point and see if the antenna connection changes the received sound.

The microphonic connection could be a cold solder joint on the volume control, a bad volume control (not real likely), a cold solder joint on the board, or the LM386 socket.  There have been some reports in the past about cold solder joints on the crystal filters of the board.  It the soldering that you did passes inspection, then you could take a good magnifying lens or loupe and verify them.  I would suggest you try to isolate the offending part by tapping lightly around the rig to see where the sound is the loudest.

As background, I had this issue with a v4 that I built.  It is still there, as far as I know, just overwhelmed by the signal from the RF sections.  As Reed suggested, the place to start is to ensure that the BFO is calibrated.  Until then, hold off on any major surgery.

Let us know how things progress.
73
Evan
AC9TU


Re: Pre driver and driver transistors

Maurice Bersan <Vk6hly@...>
 

Follow Allisons instruction for the complete mod....you'll be glad you did.
Maurice.   Vk6hly




On Sun, May 31, 2020 at 11:31 AM, Mark - N7EKU
<n7eku@...> wrote:
Link to Wiki page on the topic:

uBITX RF Power and Gain Issues


Re: Pre driver and driver transistors

 

Link to Wiki page on the topic:

uBITX RF Power and Gain Issues


Re: What’s actually better?

 

Hi ohwenzelph,

Allison's metal 2n2222a transistors should be comparable to 2n2219a transistors, but like always the source of the transistors needs to be researched.  If Allison got good results with her 2n2222a and Farhan got bad results with his 2n2219, then it could be that the latter transistors were suspect.

Also note that she was using the improved "A" version of the transistor and it seems that Farhan was not.  The "A" version has higher hFE and hfe  and lower Vsat than the non-A version.

73.


Re: Odd (and non-functional) #RX behavior #rx #v5

Reed N
 

Hey Tim,

Did you calibrate the oscillator and BFO? That's step number 1 if you haven't already. See Ashhar's video here: https://www.youtube.com/watch?v=t6LGXhS4_O8


Reed


Re: What’s actually better?

AndyH
 

I appreciate your time, Allison.  I also feel silly as I ordered NOS 2N2222A from Dan's Small Parts a month or three back. They're still $0.50 each plus a bit of shipping.  I've been trying to collect parts from Diz before they fall off.  I received a pair of 2N5109 from him today in his RF amp kits.  There are '5109s on ebay, but pricy.  I've been trying to duplicate stages from EI9GQ/Eamon's multi-band transceiver and this relative RF noob is struggling to get some of the rapidly-becoming-obsolete bits.  I envy the experienced folks with deep junque boxes!

Best, Andy


On Sat, May 30, 2020 at 05:39 PM, ajparent1/kb1gmx wrote:
Andy most are available but many places do not stiock so price is what it cost from
them to get a minimum order from a maker.  That way they can sell 10 and if that's
it sit on the other 9990 which has a cost as well.

Try Diz. 
https://www.kitsandparts.com
I've bought a lot from him and not paid for this 
but its always quality parts.

2n2219s for 2/4$
2N3866  for 2/6$
IRF510 5/4$
And very much more including ferrites or all sizes and kinds.

IF you look harder like dans small parts and other like Allied electronics you are likely to find even more.

like: https://www.alliedelec.com/product/nte-electronics-inc-/2n2222a/70725575/  73 cents,  10/6.10$

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


Re: How install Sotabeams Variable Bandwidth Filter inside uBITX V. 5 #filters #v5 #bitx20

barry halterman
 

Sorry, I thought this was about a v6 ubitx.



On Sat, May 30, 2020, 7:24 PM barry halterman via groups.io <kthreebo=gmail.com@groups.io> wrote:
There are three LEDs installed for that filter, Green, yellow and red, to let you know what mode you are in. Either bandwidth (green led) or center frequency ( yellow led). Selecting which mode you are in is done by pushing in the encoder. The red led is over drive warning when the input signal is too high, over 1.5 volts p-p.
These filters are easy to install and the unused header on the front of the main ubitx board is an excellent place to pull the input from, as well as grounding for the filter. Five volts for the board is taken off the 7805 regulator.
One comment on these variable filters. Not knowing where your center and bandwidth are set is somewhat of a pain. The extra nano and display, in my opinion, would be the way to go. I have yet to incorporate that.
Barry
K3bo

On Sat, May 30, 2020, 4:17 PM Dennis Zabawa <kg4rul@...> wrote:
If you are talking about the Vari-Beam filter, the 'Pot' is actually a rotary encoder.  If you are not using a display for the settings, you will need to install the CF and BW LEDs also.  The sketch referred to on the SOTABEAMS page will provide the interface to an OLED display.