Re: Daylight radio toroids
First attempt to measure Q not too good. 79...My test fixture might not be up to snuff. K3Bo
On Thu, Aug 18, 2022, 10:01 AM barry halterman via <kthreebo= [email protected]> wrote: Ashhar, yes I do but never measured Q with either units. Hints? 73
On Thu, Aug 18, 2022, 9:39 AM Ashhar Farhan < farhanbox@...> wrote: Barry, Do you have a nanovna or th antuino? You could measure the Q of these easily. - f
On Thu, Aug 18, 2022, 6:59 PM barry halterman < kthreebo@...> wrote:   After reading about toroids and the pit falls, I did some experiments using sewing machine bobbins.
The bobbins that I have are JANOME and are 20mm x 10mm with a center hole 6mm. I have attached a few
Pictures of the "bird cage". I have no idea what they are made from but the microwave test did not phase them.
If the losses of toroids is the material, these bobbins are 80 percent air with a little scaffolding to hold the wire.
The "bird cage" has 28turns of 24ga that measured 2.15 uh.
I would appreciate comments, good or bad.
73
Barry
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Hi Jonathan I am about to do the exact same thing and purchased this Nextion:
Which I basically pulled from the same youtube video.? There have been discussion threads about different versions of the Nextion and different versions of the CEC code so glad you had success.
Can you confirm if this is the Nextion you used?? I may want to separately Whatsapp you for details while doing this.? You possibly up for that?? I am also building in the same S meter referenced in the video as well. Thanks in Advance for any guidance. Jim K5KKB
On Thu, Aug 18, 2022 at 3:16 AM Jonathan G5LUX < jratty@...> wrote: I have fitted a 2.8" Nextion to my ?BITX - all good once I had re-compiled the .tft file with the latest editor.?
There's no need for any metalwork on the case to fit the 2.8 screen, if you feel a bit brave: I followed the Youtube video from Lockdown Electronics:
I used my Dremel to gently widen the mounting holes on the Nextion board - it only requires 2-3mm each side - and then you can use the existing mounting stands & case holes. The screen centres nicely in the window and is fixed securely.
73
Jonathan
G5LUX
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Re: Connecting the sBitx Digital Audio Board to a x86 PC
Other option for me which needs a x86 CPU, could be a Rock Pi X, which already has the 40-pin raspberry header and uses the same form factor of the Pi:
Rafael
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On 8/18/22 16:43, Rafael Diniz wrote: Hi all,
I'm trying to find a solution to remove the raspberry and use a PC connected to the sbitx digital audio board. For the control signals (Si5351A and some others) I'll use a arduino (just like in the uBitx), but for the pins which go to the audio codec, should I use a USB to I2S adapter? Any suggestion?
Cheers,
Rafael Diniz
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Executable File & User Settings
#sBitx
Hi Ashhar,
I would highly recommend that the "live" sbitx executable file, macro files, and user settings be moved out of the user¡¯s git directory and be placed elsewhere. I noticed the sbitx executable and user settings file makes pull requests become unmergable. This is easily fixable, but will be an ongoing issue. As I believe someone else mentioned, there are conflicts with the user settings file that is pushed via git pull and the user¡¯s settings file. Perhaps there should be a versioning method in the user setting file which the executable checks at runtime and informs the user if they need to update the user setting file from git. This will likely happen as new features which include new settings are added to the settings file.
I¡¯d be happy to work on the user settings file version functionality and also a script users could run (i.e. ¡°install¡± or ¡°update¡±) to place the executable and macros in another directory from their git directory, and give the option of keeping their existing user settings file, or overwriting or appending new settings from git.
73
Goody
K3NG
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Re: Daylight radio toroids
Ashhar, yes I do but never measured Q with either units. Hints? 73
On Thu, Aug 18, 2022, 9:39 AM Ashhar Farhan < farhanbox@...> wrote: Barry, Do you have a nanovna or th antuino? You could measure the Q of these easily. - f
On Thu, Aug 18, 2022, 6:59 PM barry halterman < kthreebo@...> wrote:   After reading about toroids and the pit falls, I did some experiments using sewing machine bobbins.
The bobbins that I have are JANOME and are 20mm x 10mm with a center hole 6mm. I have attached a few
Pictures of the "bird cage". I have no idea what they are made from but the microwave test did not phase them.
If the losses of toroids is the material, these bobbins are 80 percent air with a little scaffolding to hold the wire.
The "bird cage" has 28turns of 24ga that measured 2.15 uh.
I would appreciate comments, good or bad.
73
Barry
|
Re: Funtronics uBitx digi interface installation in V6CeC
KK7BCO,? DISCLAIMER -? I'm not sure about the original stock firmware as all of my radios have been modded with Nextion displays and the KD8CEC firmware.?
All I have needed was a USB sound card dongle to my laptop to provide a mic and phone jack and a USB cable to the Nano on the Raduino.? If you are using a desktop PC the dongle probably wouldn't be needed.
73,
Justin B.
KI5GKD
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Connecting the sBitx Digital Audio Board to a x86 PC
Hi all,
I'm trying to find a solution to remove the raspberry and use a PC connected to the sbitx digital audio board. For the control signals (Si5351A and some others) I'll use a arduino (just like in the uBitx), but for the pins which go to the audio codec, should I use a USB to I2S adapter? Any suggestion?
Cheers,
Rafael Diniz
|
Re: Daylight radio toroids
Barry, Do you have a nanovna or th antuino? You could measure the Q of these easily. - f
On Thu, Aug 18, 2022, 6:59 PM barry halterman < kthreebo@...> wrote:   After reading about toroids and the pit falls, I did some experiments using sewing machine bobbins.
The bobbins that I have are JANOME and are 20mm x 10mm with a center hole 6mm. I have attached a few
Pictures of the "bird cage". I have no idea what they are made from but the microwave test did not phase them.
If the losses of toroids is the material, these bobbins are 80 percent air with a little scaffolding to hold the wire.
The "bird cage" has 28turns of 24ga that measured 2.15 uh.
I would appreciate comments, good or bad.
73
Barry
|
  After reading about toroids and the pit falls, I did some experiments using sewing machine bobbins. The bobbins that I have are JANOME and are 20mm x 10mm with a center hole 6mm. I have attached a few
Pictures of the "bird cage". I have no idea what they are made from but the microwave test did not phase them.
If the losses of toroids is the material, these bobbins are 80 percent air with a little scaffolding to hold the wire.
The "bird cage" has 28turns of 24ga that measured 2.15 uh.
I would appreciate comments, good or bad.
73
Barry
|
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Re: Adding additional digital modes to the sBitx
Thanks for the walkthrough!? I managed to get it working last night.
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I have fitted a 2.8" Nextion to my ?BITX - all good once I had re-compiled the .tft file with the latest editor.? There's no need for any metalwork on the case to fit the 2.8 screen,  if you feel a bit brave: I followed the Youtube video from Lockdown Electronics: https://www.youtube.com/watch?v=Km2pi2wEdBQ I used my Dremel to gently widen the mounting holes on the Nextion board - it only requires 2-3mm each side - and then you can use the existing mounting stands & case holes. The screen centres nicely in the window and is fixed securely. 73 Jonathan G5LUX
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Hi Paul;
OK - hope a new regulator fixes the problem.
73; Steve, N3SB?
On Wed, Aug 17, 2022, 8:54 PM Paul k9mv < k9mv@...> wrote: Hi Steve-
Yes, I'm aware of the screensaver and that's not the problem.? Upon further investigation I removed the Pi + touchscreen and checked the voltage on pins 2 & 6 on the Pi header on the digi board - stable 5.4v.? So maybe I have a problem with the digi board?? The? LM338 is giving the correct voltage, at least under no load conditions.? If I recall correctly the Pi and touchscreen require about 1.5A, and even a gimpy regulator should be able to handle that.
The Pi and touchscreen work OK outside the sBITX on a separate power supply.? Guess I'll wait for the regulator upgrade and see if that helps.? Replacement LM338s arriving tomorrow, too.
-73 de Paul? K9MV
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Re: Funtronics uBitx digi interface installation in V6
Any links to messages for these thousands you speak of??
I used a decoder when learning CW to verify if I was copying correctly. I also used a decoder when learning to send CW. If it copied me correctly my code wasn't to bad, If it couldn't then I had more work to do on those letters/numbers.
Max
On Tuesday, August 16, 2022, 02:41:29 PM CDT, david todd via groups.io <ac9xh@...> wrote:
On Tue, Aug 16, 2022 at 12:28 PM, Jack, W8TEE wrote:
my guess is that less than 10% of those licensed after 2006 know CW.
This is the reason decoders should not be used. but thats my opinion, like i stated earlier, thousands will agree with me but not on this particular forum. still waiting for you t41 to come out to buy it. 73 David ac9xh
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Re: #sbitx: Raspberry Pi Heatsink?
If it was just sitting there on, but not doing much, then that is not much of a test. You measured the temp with it indoors and sitting there. What will happen if you use it portable on a hot day? And the software for all the applications and modes is not finished yet so you really don't know. They WILL get hot during high CPU usage and throttle back(slow down). Lots of Pi users (including myself) have had to add a fan to keep them cool if the application is CPU intensive.
Max
On Tuesday, August 16, 2022, 01:53:35 PM CDT, Rolf Schroeder <rolf@...> wrote:
I am convinced by now that heatsinks are unnecessary - vcgencmd measure_temp tells me the RPI measures 56.4c after 5 hours being switched on, surrouding is about 26c. Vy 73 de Rolf, DL8BAG Am 15.08.22 um 23:31 schrieb Ken N2VIP: > To add to Shirley's great response: > > When first released, the RPi 4 had heat issues, but shortly after the RPi 4 was released, updated firmware was released that corrected the issue. > > Firmware updates happen in the background when you run a recent OS image from the Raspberry Pi Organization. > > You shouldn't have an issues with heat, the RPi in the sBitx is 'floating' over the digital board with ample air-flow in my opinion. > > Ken, N2VIP > >> On Aug 15, 2022, at 12:29, Shirley Dulcey KE1L < mark@...> wrote: >> >> The Raspberry Pi in the sBitx does not work especially hard. The processor gets warm but is well within specs. Mine has small paste-on heat sinks, but that's because I had already installed them when I was using that Pi for other purposes; I bought the basic kit. (I have switched to an RPi Model 400 for what the one in my sBitx used to do.) If you want to install heat sinks similar to mine they won't do any harm, and might help if you operate your sBitx in very hot conditions (say, on a picnic table in the sun); they are readily available for a couple of dollars. A more substantial heat sink like one of the tall tower ones (with or without fan) should never be necessary, and might cause a problem fitting the Pi into the sBitx case. > > > >
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Hi Steve-
Yes, I'm aware of the screensaver and that's not the problem.? Upon further investigation I removed the Pi + touchscreen and checked the voltage on pins 2 & 6 on the Pi header on the digi board - stable 5.4v.? So maybe I have a problem with the digi board?? The? LM338 is giving the correct voltage, at least under no load conditions.? If I recall correctly the Pi and touchscreen require about 1.5A, and even a gimpy regulator should be able to handle that.
The Pi and touchscreen work OK outside the sBITX on a separate power supply.? Guess I'll wait for the regulator upgrade and see if that helps.? Replacement LM338s arriving tomorrow, too.
-73 de Paul? K9MV
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Re: 4.3 Nextion and CEC 1.095/ubitx redo
See my announcement of the github for Nextion screens. Long overdue...
Let me know what we are missing!
73
Mark
AJ6CU
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If you go the Nextion route, here is a link to someone that has done this:
I have also seen Raduino clones with a "nextion" on Ebay advertised as a plug and play (well there is some sheet metal work to fit the 2.8" Nextion)
73
Mark
AJ6CU
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Github repository for KD8CEC Nextion screens
I have created a github repository for Nextion screens used with the KD8CEC software.? The repository lives at:
This repository includes not only the original screens designed by Ian Lee, but all the additional ones that folks have contributed and filed in the "Files" section. Hopefully, this will allow folks to more quickly find the appropriate screen files or create a foundation on which to design their own. I have done my best to try to find everything, but I am sure i missed quite a few. I have also tried to credit where credit is due.
If you have some screens not listed (or feel I did not properly attribute effort to an author), please reach out to me via private groupio email or you can look up my email on QRZ. It would be really nice to get more ".hmi" files as well as original artwork.?
73
Mark
AJ6CU
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Re: 4.3 Nextion and CEC 1.095/ubitx redo
I am actually in the process of getting all the Nextion files I can find in one place on github.?
Probably a couple more hours and then i will ask folks to tell me what I missed. :-)
73
Mark
AJ6CU
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Jim K5KKB Steeb