Date   
#ubitx #v6 Internal Microphone wiring on provided hand mic #v6 #ubitx

Smitty, KR6ZY
 

Can someone tell me how their hand mic is wired, the one provided with the uBitX v6?  It looks like the speaker is in series with the ground wire on mine, and I'm trying to figure out if that's expected.

There's a board inside the hand mic.  It has terminals for Mic, PTT, GND, and Spk.  The mic connector on the uBitX doesn't have speaker signals, so we care about the Mic, PTT and GND.  The 3.5mm TRS mic connector should be wired as:
  • Tip: Mic, red wire
  • Ring: PTT, black wire
  • Sleeve: GND, white wire
In my speaker mic, the GND terminal is connected to a green wire, which is cut-off inside the 3.5mm connector, it doesn't go anywhere.  Instead, the white wire is connected to the Spk terminal.  The other side of the speaker is connected to ground.

For PTT, this just effectively adds about 8 to 16 ohms to the ground side, but against the 10k-ish pull-up on the other side, its still plenty low to register.  So PTT works fine.

But this also puts 8 to 16 ohms in series with the mic signal.  Looking at the mic circuit in the uBitX schematic, that shouldn't matter TOO much.  The rest of the circuit is 4.7k, 2.2k, and 10k.  So 16 ohms should be noise floor compared to those impedances.

Having said that, my uBitX doesn't want to put out power on SSB.  I key up, but my meter doesn't register any power.  If I key up CW, it registers power just fine.  But not on SSB.  I don't THINK this is the cause, but I'm putting the question out to see if anyone else is having a similar problem, or whether their mic is similarly wired.

Thanks!

73 de KR6ZY
-Mark

Re: [BITxV6] BRICKED recovery help needed

Jerry Gaffke
 

Andy,

I'm not quite sure I understand your first and second bullet points.
But then I'm not familiar with the firmware you are using.
So feel free to disregard these comments in they seem wrong.



1. I am unable to set the ref FREQ to 10 000 ; the closest is 10500

A 500khz error at 10mhz is an awful a lot, that's 50000 ppm
You might use a shortwave receiver to verify that the Si5351 crystal reference oscillator
is operating within perhaps 400ppm of 25.0mhz, so within 10khz
Probably somewhat high, as the crystal loading capacitance on the Raduino is too low. 

2. ... The zero beat adjustment allows me to hear the signals and voice components/announcements but continuously has approx a 500 Hz tone superimposed on the time signals which appears as though it might be due to the freq setting from step 1. not working as text instructions state it to be set.

You lost me.  Is it 500khz or 500hz?
At any rate, if the calibration step for the 875mhz vco advances in 875hz steps (so 1ppm), you should be able to get it within 10hz.
The operating frequency is always a ratio of the 875mhz vco, and thus any error in the operating frequency is that same ratio
of any error in the 875mhz vco.

the lag between key down and RF output is serious problem 

Got to be a firmware issue, perhaps due in part to the slow display if they are trying to update the display when the key goes down.
Not everybody here uses CW much, including those writing the firmware.
The uBitx is primarily an SSB rig, but there has been firmware that works well enough on CW.

Jerry, KE7ER



On Mon, Jan 20, 2020 at 07:12 AM, Andy_501 wrote:

Hi Reed,

I finally managed to get your arduino hex file uploaded into the nano and the display back to what appears to be normally visible. The 17M selection is working properly, albeit sluggishly,  with this version also.

I managed to get the test menu to work also somewhat sluggishly.

1. I am unable to set the ref FREQ to 10 000 ; the closest is 10500

2. The zero beat adjustment adjusts above and below but does not produce a zero beat state. The receiver works and I am able to hear WWV on  2.5 MHz and CHU Canada on 3.330 MHz The zero beat adjustment allows me to hear the signals and voice components/announcements but continuously has approx a 500 Hz tone superimposed on the time signals which appears as though it might be due to the freq setting from step 1. not working as text instructions state it to be set.

3. I am able to select Hand Key setting and in CW mode it outputs the full 10 Watts on 80 M band on key down; however if I key a test transmission at about 10-12 wpm with the hand key the lag between key down and RF output is serious problem (no setting of key delay helps improve). It is so bad I would not be able to use it for CW operation. I plug the hand key into the Mic jack and have the key control the PTT; in CW mode it generates CW sidetone signal but hand key does not work when plugged into the J4 Morse Jack at all.

4. Changing modes using the color display buttons and a stylus works but it also exhibits serious delays and even sometimes requires selecting the new band a second or third time to finally get it to change. It is almost as if the morse code hand keying and TFT screen servicing routines get hung up in an idle code loop delay of some sort that makes the overall operation seem sluggish or seriously lagged or unresponsive/insensitive.

But on the plus side The BRICKED white screen appears to have been cleared up; The only other possibility is that the TFT/nano daughterboard pair has a problem that is creating the sluggish performance; and HFSignals promised replacement has not been sent to me and thus I am unable to compare it with a supposed new one. They promised on two separate emails to send me a replacement however have not so far lived up to that promise.

Any suggestions now Reed?

Thanks for the hex file download

Andy

Re: BFO update

John Schlosser
 

Andy, here is a link to the wiring diagram for both straight key and paddle, I have a jack for each.



John W5GFI

Re: UBITX6 arrived today - cracked display

Paul G8KIG
 

Hi again,

First of all a data point: The cracked display meant that the touch screen did not work causing what seemed to be a lockup.
Therefore I purchased a replacement display it is identical in every way to the original one apart from one thing. It only displays a white screen, no graphics.
On the basis that it could be the initialisation bug discussed in the forums, I compiled and uploaded the firmware with the fix to the Raduino (successfully).
I still get the white screen. With the new display I turned the volume to maximum and heard birdies and whistles so lots seem to be working - this did not happen with the original display. I also have an 1.8" display with the same controller (used on a Raspberry Pi) - and the same pin out; plugging that in displays something. I think I got a duff replacement display so will order another one. Looking around I get the impression that the IL19341 controller operates on 3.3v but I noticed that the Raduino uses 5v. I can't track down a data sheet so I was just checking that 5v is OK.

Paul G8KIG

Re: Relative Power indication on Nextion display

Mike WA0YCN
 

Dan,

Thanks for the info.  To this point, I have only used .hex files in the Raduino.  I need to successfully compile and build a version, and will definitely include your code.  When I do, I'll see if I can figure anything out about it not displaying for CW.

I'm still experiencing infrequent times where the S-meter is frozen mid-scale.  Have you run into that?

Regards,

Mike

Re: [BITxV6] BRICKED recovery help needed

Reed N
 

Hi Andy,

I'm glad to hear it fixed your white screen problem. I've made some changes to the code since then, and can get you an updated binary if you can't compile yourself, though I don't know that it will solve any of your specific issues.

1) the stock code changed the LO in steps of 875Hz, which is ~1ppm, since the PLL target is 875MHz. I know that my setup is also slightly off of zerobeat, but I figured "close enough" and left the step size as is. I could make the step smaller, but then you'd have to do a lot more turning. I'm hoping to get a "momentum" thing built in to the encoder, so if I get that in place, I can drop all the step sizes without sacrificing speed of tuning.

2) This is quite likely due to the step size of the cal

3) A couple other threads have mentioned issues with keying, so you're not alone. I haven't looked into improving those functions at all, so I can't comment as to how easy or hard a fix might be.

4) I haven't experienced much, if any, lag on my touch inputs recently, but I know that if it's not well calibrated, it will drop inputs because it will think you're pressing where no buttons are. If you haven't already, remove the protective film that shipped covering the screen. Try recalibrating the touch screen using the stylus, even if you plan on operating using your fingers, and see if that helps.


Reed

updated software

dave
 

hello given there are a few different sets of software for the ubitx v5 whatare the latest that are available and from who  many thanks   dave c gw0nvf

Re: [BITxV6] BRICKED recovery help needed

Andy_501 <andrew.webb.501.ve4per@...>
 

Hi Reed,

I finally managed to get your arduino hex file uploaded into the nano and the display back to what appears to be normally visible. The 17M selection is working properly, albeit sluggishly,  with this version also.

I managed to get the test menu to work also somewhat sluggishly.

1. I am unable to set the ref FREQ to 10 000 ; the closest is 10500

2. The zero beat adjustment adjusts above and below but does not produce a zero beat state. The receiver works and I am able to hear WWV on  2.5 MHz and CHU Canada on 3.330 MHz The zero beat adjustment allows me to hear the signals and voice components/announcements but continuously has approx a 500 Hz tone superimposed on the time signals which appears as though it might be due to the freq setting from step 1. not working as text instructions state it to be set.

3. I am able to select Hand Key setting and in CW mode it outputs the full 10 Watts on 80 M band on key down; however if I key a test transmission at about 10-12 wpm with the hand key the lag between key down and RF output is serious problem (no setting of key delay helps improve). It is so bad I would not be able to use it for CW operation. I plug the hand key into the Mic jack and have the key control the PTT; in CW mode it generates CW sidetone signal but hand key does not work when plugged into the J4 Morse Jack at all.

4. Changing modes using the color display buttons and a stylus works but it also exhibits serious delays and even sometimes requires selecting the new band a second or third time to finally get it to change. It is almost as if the morse code hand keying and TFT screen servicing routines get hung up in an idle code loop delay of some sort that makes the overall operation seem sluggish or seriously lagged or unresponsive/insensitive.

But on the plus side The BRICKED white screen appears to have been cleared up; The only other possibility is that the TFT/nano daughterboard pair has a problem that is creating the sluggish performance; and HFSignals promised replacement has not been sent to me and thus I am unable to compare it with a supposed new one. They promised on two separate emails to send me a replacement however have not so far lived up to that promise.

Any suggestions now Reed?

Thanks for the hex file download

Andy



On 2020-01-08 1:16 a.m., Reed N wrote:
Hey Andy,

I hope you got a good night's rest. I think I have a fix! The attached hex file for me has NOT white screened EVER in my testing. Prior to this commit (f1ea1fd081d128895f336d0ca16de6246a422f2f) I'd get a successful screen render once every blue moon. Now, I have yet to get a failed screen boot. Hopefully it solves the problem on your end too.


Reed

Re: Any Analog Pins Available? #v6

k7ome@...
 

Thanks Reed!  Found it, used it, and now I have a voltage display on my screen.  It would have been slightly easier if they hadn't cut the wires flush with the connector but I got it done ...

Re: uBitx V6 working

Mick
 

Andy,
I have a little Beofeng radio and mic and the mic’s are known for their week mic signal so back in August I bought “10x5 mm 30-40 dB electret condenser microphone high sensitivity pickup” 5 pieces for $3.95 including shipping. This item is still available from eBay.
1 I replaced the small pick up with the 10 mm one. (I had to cut away the plastic ring around the small pickup)
2 I drilled a couple more small holes in the microphone face above where the new pick up sits
73
Mick VA3EPM

 

Re: Relative Power indication on Nextion display

Dan YO5RXM
 

PS: I am using CEC firmware version 1.20.

Re: Relative Power indication on Nextion display

Dan YO5RXM
 

Hi Mike, 
I took some time this weekend to look into the code. Indeed, the analog pin A7 is read only during RX, in a process called idle_process() .With a very simple code change I was able to read the analog pin during TX. but only for PTT and TX from CAT. It does not work when keying down (I don't know why, I wasn't able to figure it out).
So now I am using A7 for both S-Meter (during receive) and for FWD/REF during TX. 
The code change as follows:
ubitx_20.ino, line 1515, insert the following lines between  " } //end of check TX Status" and   "//we check CAT after the encoder as it might put the radio into TX"

  else
  {
    if (beforeIdle_ProcessTime < millis() - 250) {
      DisplayMeter(2, analogRead(ANALOG_SMETER)/50, 13);  //calibrated so that 2,5V is full scale of display meter, change according to the input voltage on pin 7
      beforeIdle_ProcessTime = millis();
    }
  }
 
      
 

Re: Any Analog Pins Available? #v6

Reed N
 

On uBitx v6, A7 is definitely available. It's only connected to the CONTROLS1 port pin8, and that wire isn't connected to anything on the corresponding wiring harness in the kit. It can only be used as an analog input (can't output at all, but you can threshold it to make it pseudo-digital). In the stock software, you'll see it listed as a define called "ANALOG_SPARE", but I'd recommend renaming it to whatever purpose you use it for, if you do use it for something.


Reed

Any Analog Pins Available? #v6

k7ome@...
 

Are there any analog pins available on the Nano of the V6?  From looking at the documentation it looks like A7 might be available.  Anybody know for sure?

Re: uBITX v6 full Kit #v6

Tom Crow
 

Awesome!
Thank you all very much

Re: uBITX v6 full Kit #v6

Andy_501 <andrew.webb.501.ve4per@...>
 

weight is 2 lbs 4.3 oz.

On 2020-01-19 1:43 p.m., Dave Dixon wrote:
Hi Tom,
             My V6 measures 7 inches wide by 7 inches front to back and the is height is 3 inches... Regards Dave G0AYD CWOPS 2159...

On Sun, 19 Jan 2020 at 18:46, Tom Crow <n5tti@...> wrote:
Hi all,
I have been looking around but cannot find the dimensions and weight of an assembled 'full kit' uBITX v6
Does anyone know what those dimensions and weight are?
Thanks
Tom
N5TTI

Re: uBITX v6 full Kit #v6

Dave Dixon
 

Tom
       sorry the weight is 2 1/2 pounds...,

On Sun, 19 Jan 2020 at 19:43, Dave Dixon <wylyeguy2@...> wrote:
Hi Tom,
             My V6 measures 7 inches wide by 7 inches front to back and the is height is 3 inches... Regards Dave G0AYD CWOPS 2159...

On Sun, 19 Jan 2020 at 18:46, Tom Crow <n5tti@...> wrote:
Hi all,
I have been looking around but cannot find the dimensions and weight of an assembled 'full kit' uBITX v6
Does anyone know what those dimensions and weight are?
Thanks
Tom
N5TTI

Re: uBITX v6 full Kit #v6

Dave Dixon
 

Hi Tom,
             My V6 measures 7 inches wide by 7 inches front to back and the is height is 3 inches... Regards Dave G0AYD CWOPS 2159...


On Sun, 19 Jan 2020 at 18:46, Tom Crow <n5tti@...> wrote:
Hi all,
I have been looking around but cannot find the dimensions and weight of an assembled 'full kit' uBITX v6
Does anyone know what those dimensions and weight are?
Thanks
Tom
N5TTI

Re: new nextion 5/7 hmi bug

Mark Hatch
 

Enhanced has more memory. Surprised that it didn’t compile for basic, as I had no problems compiling it for basic 5”. I seem to remember that someone else had a compile problem for a basic. But don’t recall the fix. 


when I am in front of my system late next week I will try it. I know that I ran this close to the maximum on the 5” basic.  One of the spectrum displays takes a lot of memory. Had to reduce it size to compile on the 5”basic. 


73
Mark
AJ6CU

Re: uBitx V6 working

Andy_501 <andrew.webb.501.ve4per@...>
 

What did you do to upgrade the mic Mick?

On 2020-01-19 10:52 a.m., Mick wrote:
All,
After borrowing an antenna tuner, upgrading my Beofeng Mic, I made a successful QSO yesterday only to find myself in the NA-QSO Party :-) I could tell by listening that all was not normal and fortunately my first (ever) HF contact (Tom K3AJ) was kind enough to explain the rules.
So after a couple of hours I mad 14 QSO's on the 40 meter band and had a lot of fun.
Thanks to all in this group who help me with getting the V6 set up.

73
Mick VA3EPM