Date   

Re: R could use some helpe: uBITX v5 CW issue

Curt
 

Bob

With the rig on, press the main tuning knob. Its also a switch. A menu appears, turn this knob to see other menus. One relates to cw, when you see it press knob again. Then turn knob to see settings. A little experimenting you will see how this works.

Yes make sure you are in straight key mode, and that you installed the 4.7k resistor required.

Curt


Re: Some Improvements to the stock V6 code #bfo #calibration #firmware #ubitxv6

vu3gwn
 

Yeah, trying my best. FT8 with this OOB is what I am looking forward to...


Re: Some Improvements to the stock V6 code #bfo #calibration #firmware #ubitxv6

vu3gwn
 

Oh, you mean the TX minus tone for LSB and TX plus tone for USB? Always wondered why that was there? Is it not per design? 


Re: R could use some helpe: uBITX v5 CW issue

baltimari@...
 

Hi Curt
 So your saying the delay there is a delay in the setup menu. I will check that out. Thanks

Hi Evan
 I don't recall seeing selection for straight key in the setup menus. Can you tell me how to navigate to it?

Thanks to both of you for replying.
Bob 
KA3VWT


Re: R could use some helpe: uBITX v5 CW issue

Evan Hand
 

Bob.
Do you have the straight key selected in the setup?

You can also check the amount of time that the transmit stays on after you lift the key.  This is to keep the relays from clattering all the time. 

73
Evan
AC9TU


Re: R could use some helpe: uBITX v5 CW issue

Curt
 

Bob

he is thinking the contacts across the CW key input. 

there is some natural delay to how the ubitx makes CW.  the challenge is that only one pin was available - so it reads a voltage (via a pull-up resistor) to do CW.  it works once you get used to it.  I find myself not pausing much between words when I do CW - to keep the relay closed.  (there is a delay adjustment to make it faster or slower - I find I do best with the default setting.  I have made hundreds of CW contacts with the ubitx - it works once you get used to it. 

do make sure you don't have an intermittent connection there - with soldered connections - and in particular with how the raduino seats into the main board - but you might also just experiencing how to it works. 

do use it with an audio filter on receive - and its a pleasant enough ride in CW. 

73 curt wb8yyy (/3)


Re: R could use some helpe: uBITX v5 CW issue

baltimari@...
 

Hi Ted
 Are you familiar with the uBITX v5 and if so could you guide me on what two contacts I should jumper.

Bob KA3VWT


Re: R could use some helpe: uBITX v5 CW issue

Ted
 

This is a longshot, though the 1/8" sockets and plugs can be a little finicky, especially if a little heat gets on the terminals during wire-up.  I suppose that can be so with any of them though you might try jumping the contacts direct, for reaction to a known solid contact closure.


-ted
 K3RTA


R could use some helpe: uBITX v5 CW issue

baltimari@...
 

Hi

I am new to the forum. I could use some help. I just got done building ubitx v5 and just got done checking it out. Seems that voice is working fine but the CW is only working intermittently. I am using a straight key and it appears to be working fine according to my ohm meter. Sometimes I can do dits and dahs but seems to have a delay to it. Then sometimes it just stops working altogether. Has anyone else seen this problem before. Or maybe you can suggest were I should be looking for this intermittent issue.

Thanks 
Bob KA3VWT


Re: Some Improvements to the stock V6 code #bfo #calibration #firmware #ubitxv6

Steve Sawicki
 


The worldwide home Virus lock-down at this point shows what the BITX community and what "Ham" ingenuity is all about.
By the end of this "Crisis" I am sure that we will a fully cleared up and feature rich "Stock" code that negates the addition of outside modifications which may be fantastic if you are adventurous but will preserve the originality of the V6 structure.
Best Regards.
Steve
AB2ET/4


Re: #v3 unit #v3

Rick Price
 

Attached wireup for v3 and v4. Wireup is the same for v3 or v4. V4 had some
changes in the audio amp and I think the nano was socketed but wireup should
be the same. Hope this helps.

Rick
KN4AIE

-----Original Message-----
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Rag
LB-Three-RE Stein-Roar
Sent: Tuesday, April 14, 2020 3:55 PM
To: BITX20@groups.io
Subject: [BITX20] #v3 unit

Hello

Where is documentation of v3 i bougth now

I plan to assemble now

Best Regards,
Stein-Roar Brobakken
@LB3RE
LB3RE K3RAG
Skype: lb3re.rag


Re: #v3 unit #v3

Evan Hand
 

It is buried somewhere on the HF Signals site.  I just go to Ubitx.net, as it is easier to find old data there.

73
Evan
AC9TU


Re: #nextion #nextion #nextion

Evan Hand
 

I would need more detail than just the picture of a white screen.  I could be that the tft file was not loaded (assuming as the #nextion suggests).  It could also be that the Nano program does not match the Nextion tft file.

To test the tft file, supply only power to the Nextion, do not connect the yellow or blue wires.  You should get the home screen with zeros in the frequency display.  If not, then reload the tft file.

I do not have an easy way to verify the file that you loaded into the Nano.  If the above tests OK, I would make sure I have the correct Nano file to load that matches the display.  There are Arduino (.ino or Hex) for the "basic" and "enhanced" Nextion displays, and they are different.

The above is my best guess.
73
Evan
AC9TU


Re: Ubitx V3 Transmit lock

Evan Hand
 

I had some free time and looked up the pin assignment in the original v3 stock code.  In lines 79 and 80 are the two assignments in the ubitx_20.ino file that could be reversed to use the spare analog input for the CW function.

#define ANALOG_KEYER (A6)
#define ANALOG_SPARE (A7)

Change the above to:

#define ANALOG_KEYER (A7)
#define ANALOG_SPARE (A6)

And then wire the CW key to the purple A7 wire instead of the blue A6 wire.

The above would be worth a try to see if you can salvage the existing Nano.

73
Evan
AC9TU


#v3 unit #v3

Rag LB-Three-RE Stein-Roar
 

Hello

Where is documentation of v3 i bougth now

I plan to assemble now

Best Regards,
Stein-Roar Brobakken
@LB3RE
LB3RE K3RAG
Skype: lb3re.rag


#nextion #nextion #nextion

vu3jvw@...
 

Can any one explain this 


Re: Some Improvements to the stock V6 code #bfo #calibration #firmware #ubitxv6

Ashhar Farhan
 

great job. there is also that little irritant of the cw shift. fix that too and you have a winner!
- f

On Wed, Apr 15, 2020 at 12:31 AM <belthur@...> wrote:
Hi Folks,

After assembling and using the uBitx for a week, realized that there are few not so smooth areas in the firmware that needed a little tweaking. After almost a month, feel like it has reached a stage where I can do with a little feedback. 

The code has not been forked from Stock code, but cloned and put up in my own github repo.

Have made the following additions and tweaks.

Code additions by vu3gwn@...
 * UI fixes, CALLSIGN addition
 * Button text normalization, VFO A/B UI
 * Added RX
*  Current values to Frequency calibration and BFO calibration

You can add your own callsign which will show up in the bottom. to do that just open up ubitx.h and change the value for CALLSIGN_VER


Some Improvements to the stock V6 code #bfo #calibration #firmware #ubitxv6

vu3gwn
 

Hi Folks,

After assembling and using the uBitx for a week, realized that there are few not so smooth areas in the firmware that needed a little tweaking. After almost a month, feel like it has reached a stage where I can do with a little feedback. 

The code has not been forked from Stock code, but cloned and put up in my own github repo.

Have made the following additions and tweaks.

Code additions by vu3gwn@...
 * UI fixes, CALLSIGN addition
 * Button text normalization, VFO A/B UI
 * Added RX
*  Current values to Frequency calibration and BFO calibration

You can add your own callsign which will show up in the bottom. to do that just open up ubitx.h and change the value for CALLSIGN_VER


Re: uBitx V4 no modulation in SSB #ubitx #v4

Evan Hand
 

Does the radio receive work?  If so, then the BFO and the diode IC are OK, as it is used for both transmit and receive.

Since the problem started after making the modification for the AGC, can you undo that mod and see if the radio works?

I suspect that there is an error in the AGC modification that you made, as that is when the problem started.  It would also help members in this group to know which AGC mod you installed.

I do not understand how the MAX9814 electret microphone amp is being used.  That would normally not be wired to the VOL signals for the receive volume control.  Are you using the electret amp as a preamp for the receive audio?  The information that you are giving me is confusing.  Is it possible to post pictures of the modifications that you made, or better yet sketches of the circuit schematic on how the modifications were installed?  This for any and all modifications that you have made in the audio sections of the radio. 

I would start with just the receiver, and get it working again before going on to the transmitter.

73
Evan
AC9TU


Re: Ubitx V3 Transmit lock

Evan Hand
 

I was not aware that the v3 uBiTx had the Nano soldered in place.  The v4 and v5 that I have are socketed.  I would speculate that the soldering was to reduce the height and maybe cost.  That could also explain the upside-down mounting on the other side of the Raduino board when they went to a socketed Nano.  The header pins with socket would have been too high to fit between the Raduino board and the display.  If you do replace the Nano, I would suggest adding the sockets and moving the Nano to the other side of the Raduino board.  Be sure the Nano you purchase has the header pins separate, as you will need to solder them in so that they are on the side of the Nano with the Reset button (Upside down from normal).  This is to allow for mounting on the other side of the Raduino.  You will also need the female headers to solder on the Raduino.  I have found that pre-assembly before soldering, tacking the 4 corner pins onto both the Nano and the Raduino in place, then removing the Nano to finish soldering all of the pins works to ensure that the headers line up.

I have found this tool: https://smile.amazon.com/gp/product/B00CUKTH2A/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 to be very effective at desoldering.  I used it to upgrade the relays on my two v4 boards to bring the harmonics suppression into compliance (verified with an RSP2 spectrum analyzer).  There are no instructions on how to use it, so I searched the internet and found this YouTube video: https://www.youtube.com/watch?v=Xma0bwfR7eo Note that the tool demonstrated is not the same tool as the one from Amazon, however the use is the same. It worked well for me, leaving the holes open and the removed relays intact.  The tool was also less expensive than the one mentioned in the video.

There may be an alternative to replacing the Nano, one that will require you to modify the program.  I believe there is a spare analog pin on the Nano (at least there is on the v4 board) that you could use in place of the key input.  It has been used for S meter measurement inputs.  You could use the spare control wire from the Raduino as the key input and change the pin definition in the Nano program.  I would not suggest going this route, as there are other benefits by making the Nano replaceable, and the damage to the Nano may have taken out more of the ADC circuit than just that one input.  If up to the program change, it would not hurt to try.

Above are suggestions, as I do not have a v3 and there could be issues that I am not aware of in the mods.
73
Evan
AC9TU