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Re: File /uBITX_6_N8ME_2_VU3GAO_Mods.zip uploaded #file-notice

 

Need help troubleshooting. #sketch-too-big
For those who have successfully installed the latest drop of N8ME_2_VU3GAO_Mods, what Arduino ISP version are you using?

-What are the parameters in the ISP you are using for a "stock" uBITX V6 complete kit? I have noodled with several:?
-Board: Arduino Mini
-Processor: ATmega328P
-Programmer ArdunoISP (and a couple of similar appearing entries)

I am getting the infamous "Sketch too big" error even after playing with several versions of the ISP and following Ashhar's description of compiling and loading the sketch.
part of error message reads: text section exceeds available space in board Sketch used 29214 bytes(101%) of available space. Maximum is 288672 bytes.
I don't mess with Arduino enough to have a clue what to comment out or otherwise eliminate that would allow a good compile. Have read something about eliminating the boot loader from compile, but isn't boot loader required to init the firmware?

Currently have ISP 1.8.12 installed.
Pretty obvious some parameter or other is not right and I am unable to prevent the bloat on compile.
A search of the messages found a lot addressing the issue for other firmware, but little useful for the N8ME/VU3GAO version.

Thanks in advance for any clear text, non jargon laden explanations offered.

73 -
Jack KD4IZ
#sbitx #sbitx-k3ng #sBitx #sbitx-k3ng

Anthony Good
 

¿ªÔÆÌåÓý

I have some updates available for testing here:


This includes the following improvements to the spectrum display (inline picture below):


- Dragging of the displayed bandwidth: grab the spectrum display frequency in the green outlined area
- Dragging of the pitch: grab the pitch line in the purple outlined area
- Dragging of the low and high filter frequencies: grab the low and high frequencies in the yellow outlined areas

You can ¡°grab¡± these areas using your mouse or the touch screen. ?The VFO frequency can still be changed by dragging anywhere else in the spectrum display, and right-click QSY is still supported as well.

Feedback welcome.

73
Goody
K3NG
Re: Loss of CW Side tone When load N8ME Firmware.uBITX V6

 

Dave
Thanks for the kind words.
I not that young and I forgot more than I know.
I was licensed in 1979 ask KA3DFK I took off about 30 years an got back in to it during the Pandemic. That¡¯s how I got the uBITX need a radio . That¡¯s when it all started.
I turned 75 last Sunday. So I have had my share of oops?
Thanks ?73
Chuck K3CWE?
Re: Some calculations on the IF filter and USB filter

 

Actually there¡¯s already literature on it. I¡¯m going to dig again

ex:?Re: #uBITX Firmware KD8CEC - IF-Shift etc. (groups.io)
[email protected] | Need some explanation on v4 sketch

cdt
....
Re: #sBitx Sbitx died mid transmission #sBitx

Mark Earnest
 

This is the one I have been using for a while.?

I also need to swap my IRFZ24 FETs but that was due to a high SWR scenario, the buck converter is still working fine.?

Anyone know if it is safe to run the sbitx as a receiver with the IRFZ24s removed (assuming you don't transmit)?
Some calculations on the IF filter and USB filter

 

Hello,

When analyzing the programs KD8CEC or Ubitx V4,5,6 I have a little trouble to understand how the different values of First IF, Second USB, Second LSB and int USB are calculated.
In the KD8CEC program, there are different examples, but I¡¯m having a hard time figuring it out.

The best is an example, and it speaks louder:
Let¡¯s imagine (These are examples) that I have a 45 MHZ filter that has a center frequency of 45002200 htz with a bandwidth of 7.5 KHtz on each side of this frequency, and then an SSB filter of 12000800 htz in center frequency with a bandwidth of 2.5Khz on each side?

What are the calculations to make to find these 4 values.
This will allow the most accurate adjustment of the filter configuration.
So:
First IF= ? Calculation formula
Second USB=?? same
Second LSB=?? same
Init USB=?? same
?
Knowing that in all programs seen, VFOA and VFOB still have the same value (7150000 and 14200000)
?
Thank you
?
Re: #sBitx Sbitx died mid transmission #sBitx

 

Scott,?
Do you have a part number for your buck converter?? I think it's amazing that Ashar is sending replacements out.? However I am hoping to do a POTA activation next Thursday and I'd like to move as quickly as I can with the repair.? Tell me if I'm wrong, but the buck converter will replace the LM338, and I just swap 2 new IRFZ24 FET's onto the heat sink?
Thanks you for your explanation
Scott
Re: Android App for uBitx / Raduino32 #v6 #raduino32 #esp32 #ubitxv6

 

Hi,

send me a private message?and I will send you the .apk file. The link only contains the source code.
¸é²¹³¾¨®²Ô
Re: #sBitx Sbitx died mid transmission #sBitx

PeteWK8S
 

Begin by looking at the 5v regulator. It is the 388 or its replacement switching regulator just next to the 12 volt input to the unit.

Pete WK8S
Re: #sBitx Sbitx died mid transmission #sBitx

 

Scttmtclf,

What you describe is exactly my experience. ?The root cause is the LM338 failing and you probably lost one or both of the PA transistors as well. ?The overall problem is the heat sink clamp for the differing sizes of the devices. ?The cure, unfortunately, is to replace the PA transistors and the voltage regulator. ?The good news is Ashhar has just shipped replacement devices.

The replacement voltage regulator is a buck design that is extremely efficient and does not require a heat sink. ?The allows the PA transistors to be solidly clamped to the heat sink. ?I¡¯ve not had one problem since I replaced these devices.

I¡¯m not sure if there is a step-by-step instruction guide but it¡¯s a pretty easy replacement. ?The only tricky part is mounting the regulator.

Good luck, Scott

?
Re: #sBitx Sbitx died mid transmission #sBitx

 

Scttmtclf,

I would verify that the LM338T provides the 5volts to the Raspberry Pi (RPi).? You could verify that the RPi is still working by removing it from the radio, connecting an HDMI display, a USB Mouse, a USB keyboard,? and providing a USB-C voltage supply.? If the regulator has failed, I would wait for the upgrade kit from HFSignals that has the replacement regulator and finals.? If the RPi is the problem, you need to order a replacement.? The RPi 4 is hard to find at a reasonable price.

To reinstall the RPi, follow the assembly manual:


73
Evan
AC9TU
Re: how can download file x sbitx #sBitx

 

Use IDM Internet Download Manager or IDM Integration Module in your browser.
There is probably another download manager that can resume the interrupted download.
--
Gyula HA3HZ
Re: #sBitx Sbitx died mid transmission #sBitx

 

Yes it is getting power. I swapped power supplies, and it still did not turn on. I also used its power supply on another radio, and it worked correctly
how can download file x sbitx #sBitx

  

Hello everybody. I am trying to download the image for the Sbitx sd. i couldn't download it, despite trying with win10m win 7 and win xp. I can't finish the download. do you have any ideas? I should reload the soft sbitx, because due to my maneuver, I must have canceled some end and I can't get out of it. any help is appreciated. 73 de in3izq danilo
Re: Android App for uBitx / Raduino32 #v6 #raduino32 #esp32 #ubitxv6

 

Hi! APP software connection and download failed, Can the download link be re-provided? or email me xyjlxx@...
Re: uBITX V6

 

Refer the Video of "uBITX_6_N8ME_3_VU3GAO_Mods" running on the transceiver.

uBITX_6_N8ME_3_VU3GAO_Mods_Video.mp4
uBITX_6_N8ME_3_VU3GAO_Mods_Video.mp4

Re: #sBitx Sbitx died mid transmission #sBitx

 

The first thing I would do is make sure the sBitx is getting power. If you're powering it through?a fused cable or a distribution box like a Rigrunner, you might have taken out a fuse. I did that in an early session, blowing a 5A fuse while attempting an SSB transmission at 10W. (The bias adjustments were not ideally set at the time; I tried adjusting them as explained in the original build instructions, not knowing that it had already been done at the factory. Fixed now. This is also with the original 5V linear regulator still in place.)


On Fri, Sep 9, 2022 at 12:05 AM scttmtclf via <scttmtclf=[email protected]> wrote:
Tonight I had made15 contacts via ft8 with no issues on 40 meters through a vertical with 1.2-1 swr.? I switched to 20 meters, and adjusted my vertical till I had a 1.1-1 swr.? Mid-transmission, my sbitx shut down.? No smoke, just shut down.? I unplugged it and tried cycling the power again, but nothing.? There is no power to the pi, because the red led is not on.? Where should I begin my diagnosis?

#sBitx Sbitx died mid transmission #sBitx

 

Tonight I had made15 contacts via ft8 with no issues on 40 meters through a vertical with 1.2-1 swr.? I switched to 20 meters, and adjusted my vertical till I had a 1.1-1 swr.? Mid-transmission, my sbitx shut down.? No smoke, just shut down.? I unplugged it and tried cycling the power again, but nothing.? There is no power to the pi, because the red led is not on.? Where should I begin my diagnosis?
Re: #sbitx Upgrades shipped #sBitx

 

William,
The kit has been despatched to everyone who has bought sbitx (either models) with LM338, across the countries.
- f

On Fri, Sep 9, 2022, 5:56 AM William R Maxwell <wrmaxwell@...> wrote:
I asked this question a few days ago but that post seems to have vanished from the earlier thread on this topic, without a response.
Has the upgrade kit been sent to purchasers outside the USA, Ashar?
If not, I don't know how many sBITX have been purchased in Australia but I am happy to act as a forwarding point for distributing the upgrade kit to Australian owners, if that is of assistance.

Bill, VK7MX

Re: #sbitx Upgrades shipped #sBitx

 

I asked this question a few days ago but that post seems to have vanished from the earlier thread on this topic, without a response.
Has the upgrade kit been sent to purchasers outside the USA, Ashar?
If not, I don't know how many sBITX have been purchased in Australia but I am happy to act as a forwarding point for distributing the upgrade kit to Australian owners, if that is of assistance.

Bill, VK7MX
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