There¡¯s a lot to that¡? I would suggest using the latest software version though¡ and start in the definitions section where the arrays are defined for the bands. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] <[email protected]> On Behalf Of bty84827531 via groups.io
Sent: Sunday, February 23, 2025 10:27 AM
To: [email protected]
Subject: [SoftwareControlledHamRadio] 160 metres? Can someone please explain how to turn back on 160 metres and turn off any other band in SDTVer053? I've had a go at it but it seems there are several tabs involved.
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Its perfectly acceptable to wind turns over turns¡ ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ?
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From: [email protected] <[email protected]> On Behalf Of Tim via groups.io
Sent: Sunday, February 23, 2025 5:18 PM
To: [email protected]
Subject: [SoftwareControlledHamRadio] BPF L292? When you get to? L292 | 3.6 uH | 20 | 38 | T37-10 | Black | 20" of #28 wire, 38T on T37-10 | ? |
You might want to drop down a wire size to #30? I had trouble getting the ones done with 32 turns let alone 38! #30 I was able to get 38 turns. Frim memory wire size is not that critical just number of turns. I will send SA plot of 30M later to see if it made a difference. These filters are fairly wide (I plotted 80 and 20m so far) to start with so I doubt there is much difference.?
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I installed all of the required libraries and compiled this
version. Looks good, but when I tried to do the Receiver
Calibration, it worked like the directions(some of the switches
were mapped differently), but when I pressed Select to save, it
returned to the normal display with a lot of the text from the cal
screen overlaid and was non functional. I had to cycle power to
get it working again. I tried several bands and got the same
behavior, however the I & Q corrections were stored in EEPROM.
Do I just need to reset the Teensy to Blink and try again, or is
there a S/W problem?
--
73
Bob W3RDL
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Re: slow starting on T41 kit
Thank you, I'll carry on, appreciate your saving me scanning over a year's of posts to the lists to check for recommended changes since my kit arrived. So wishing that I was retired already, I'll be 70 this year. Stuck around because my boss www.buffaloairways.com won't hire an apprentice or replacement, I'm one of the old guys with experience on his own fleet plus the DC's, C-54 (retired now), L-188, and our fire fighting fleet which includes CL-215s (piston ones from the 60's). The next few weeks is my break before fire season gets going again (not only lightning, also re-animated zombie fires). The required parts will be ordered this week. 73 Ron VE8RT On Mon, 24 Feb 2025 13:26:39 +0000 (UTC) "jjpurdum via groups.io" <jjpurdum@...> wrote: Your kit does not include the Teensy 4.1 or the Audio Hat, either (available from PJRC.com). The display is ordered from BuyDisplay.com and is a Chinese company so it will take some time. The correct model number is in the Files section of this site.
Jack, W8TEE
On Sunday, February 23, 2025 at 11:20:41 PM EST, Ron VE8RT <ve8rt@...> wrote:
? I was furtunate enough to received from Ron AG1P a T41 kit back in
December of 2023.? The plan to get to it in early 2024 didn't work out,
I've just this last week gone through the box and have a good start on
the book.?
? Before I dive into building it are there modifications or other that
I should do right away?? The 5 inch display and other not included in
the box I should get on order ASAP.? Retirement should have happened in
2020, hopefully this later this year.
? Ron VE8RT
--
Ron VE8RT <ve8rt@...>
-- Ron VE8RT <ve8rt@...>
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Re: slow starting on T41 kit
Your kit does not include the Teensy 4.1 or the Audio Hat, either (available from PJRC.com). The display is ordered from BuyDisplay.com and is a Chinese company so it will take some time. The correct model number is in the Files section of this site.
Jack, W8TEE
On Sunday, February 23, 2025 at 11:20:41 PM EST, Ron VE8RT <ve8rt@...> wrote:
? I was furtunate enough to received from Ron AG1P a T41 kit back in
December of 2023.? The plan to get to it in early 2024 didn't work out,
I've just this last week gone through the box and have a good start on
the book.?
? Before I dive into building it are there modifications or other that
I should do right away?? The 5 inch display and other not included in
the box I should get on order ASAP.? Retirement should have happened in
2020, hopefully this later this year.
? Ron VE8RT
--
-- Jack, W8TEE
|
I was furtunate enough to received from Ron AG1P a T41 kit back in
December of 2023. The plan to get to it in early 2024 didn't work out,
I've just this last week gone through the box and have a good start on
the book.
Before I dive into building it are there modifications or other that
I should do right away? The 5 inch display and other not included in
the box I should get on order ASAP. Retirement should have happened in
2020, hopefully this later this year.
Ron VE8RT
--
Ron VE8RT <ve8rt@...>
|
When you get to?
| L292 |
3.6 uH |
20 |
38 |
T37-10 |
Black |
20" of #28 wire, 38T on T37-10 |
? |
?
You might want to drop down a wire size to #30?
I had trouble getting the ones done with 32 turns let alone 38!
#30 I was able to get 38 turns.
Frim memory wire size is not that critical just number of turns.
I will send SA plot of 30M later to see if it made a difference.
These filters are fairly wide (I plotted 80 and 20m so far) to start with so I doubt there is much difference.?
Tim W4YN?
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On Sunday, February 23, 2025 at 02:28:04 PM EST, Bob Larkin <bob@...> wrote:
Hello All -
I? feel that I have learned a lot by reading posts here on the T41 adventure.? Thanks much.? In exchange, a heads up that I added more detail to the Tiny Ten page.? This is a different radio with different goals, but there is a lot of common heritage and it borrows, with appreciation, from many projects including the T41. ? In part, since last time,
* 10-meter output is measuring 12 ?Watts
* I-Q vector errors and SSB suppression have been measured
* As a novelty, an AM broadcast input filter was added
* TwinPeaks I-Q alignment had been left out, it is there now
* Updated schematics for both Digital & RF PCB
* The output match/filter now has two ground paths. It is better.
In general, the radio is now able to do the basic functions that were planned. ?I plan to do software improvements as there is time, but nothing is urgent.
As usual, the page is at
https://www.janbob.com/electron/TinyTen/TinyTen.htm
and comments and discussion are welcomed.
73, Bob ?W7PUA
-- Jack, W8TEE
|
Hello All -
I? feel that I have learned a lot by reading posts here on the T41 adventure.? Thanks much.? In exchange, a heads up that I added more detail to the Tiny Ten page.? This is a different radio with different goals, but there is a lot of common heritage and it borrows, with appreciation, from many projects including the T41. ? In part, since last time,
* 10-meter output is measuring 12 ?Watts
* I-Q vector errors and SSB suppression have been measured
* As a novelty, an AM broadcast input filter was added
* TwinPeaks I-Q alignment had been left out, it is there now
* Updated schematics for both Digital & RF PCB
* The output match/filter now has two ground paths. It is better.
In general, the radio is now able to do the basic functions that were planned. ?I plan to do software improvements as there is time, but nothing is urgent.
As usual, the page is at
https://www.janbob.com/electron/TinyTen/TinyTen.htm
and comments and discussion are welcomed.
73, Bob ?W7PUA
|
Re: [?SDX] Digital Interface Transceiver or DIT
?here's the video for it..3
On Sunday, February 23, 2025 at 01:08:08 PM EST, Kees T via groups.io <windy10605@...> wrote:
Jack,
?
Thank you for sending the link but I'm having trouble playing the video. Do you happen to have a copy of the presentation you could forward ?
?
I was trying to get a Digital Interface Text Transceiver to perform Texting functions like many do with their iPhones today. The idea was to add a RF section to transmit actual Morse Code so the Text Transmissions could be manually copied. The Transceiver would require no speaker, no headphones, no key.....no audio at all. The only human interface is a keyboard on the display, Text Received, and Housekeeping data.
?
Since you would want to reduce the RF bandwith as much as possible reduce the Dv/Dt, etc. Call that "Fast CW". Using an external ADC and FAST Microcontroller to perform ANALOG signal processing .....is it a DOT or a DAH, remove unwanted noise, compensate background noise, etc, etc and be able to dig the signal out of the muck. Only then to you confirm it was the letter "P" and send it on for display. Weak signal detection NOT nearly as well as WISPR and other small signal algorithms but an improvement.
?
Strong signals with minimal interference are always easier to decode.
?
73 Kees K5BCQ
-- Jack, W8TEE
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On 2025-02-23 08:07, Oliver KI3P via groups.io wrote: I do easy real-time and private backup of my files over my local
network with Syncthing (). Wow, thanks for this. There are so many open source projects out there. I had never heard of syncthing. Right now, I do it with a motley collection of scripts using rsync and NFS mounts. Not perfectly reliable, and needs occasional babysitting. - Jerry, KF6VB I have a computer running in my basement that is on all the time running Syncthing, and
then have a copy running on my main laptop. I configure Syncthing to
synchronize my documents and working folders between these computers.
The outcome is that all important files on my laptop are automatically
and immediately saved to my backup computer. I then do a full disk
backup of my laptop every month or so.
If my laptop hard drive fails, I restore it from the most recent
full-disk backup. Syncthing will automatically launch on startup and
restore all my documents / working folders from the basement computer.
At worst, I will be missing a few applications that I might have
installed since the last full-disk backup.
Links:
------
[1] /g/SoftwareControlledHamRadio/message/32886
[2] /mt/111335927/243852
[3] /g/SoftwareControlledHamRadio/post
[4] /g/SoftwareControlledHamRadio/editsub/243852
[5]
/g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy
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I have a "NAS" (Network Attached Storage) device.? It's a dual RAID so it has 2 hard drives with identical data.? If one fails, the other keeps going, and it alerts you that a drive failed.? That happened once.? You pull out the dead drive, plug in a new one, and it synchronizes.
I'm 99% on Linux, and the NAS is configured for NFS and it gets mounted to the Linux file system.? So anything I manipulate which resides on the NAS has redundancy, and I do monthly backups to 2 external hard drives, same size as in the NAS.
Then some stuff gets pushed to Google Drive.? That's manual, and so mostly for archival stuff only.? Also the NAS has a Git server!? So my repositories can push to the NAS, or push to Github.? Works great!
You may have to do some work to get a NAS configured to your specifications.? I've been highly successful with it.? Good device!? I've been using Synology for years.? And of course it's based on a Linux OS.
?
--
73 Greg KF5N
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Can someone please explain how to turn back on 160 metres and turn off any other band in SDTVer053? I've had a go at it but it seems there are several tabs involved.
?
Roger G8JWT
|
I do easy real-time and private backup of my files over my local network with Syncthing (). I have a computer running in my basement that is on all the time running Syncthing, and then have a copy running on my main laptop. I configure Syncthing to synchronize my documents and working folders between these computers. The outcome is that all important files on my laptop are automatically and immediately saved to my backup computer. I then do a full disk backup of my laptop every month or so.
?
If my laptop hard drive fails, I restore it from the most recent full-disk backup. Syncthing will automatically launch on startup and restore all my documents / working folders from the basement computer. At worst, I will be missing a few applications that I might have installed since the last full-disk backup.
?
?
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|
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All:
First, my thanks to all who tried to help me solve my drive D problem. My first attempt was to remove the connector, clean and D-ox it, and replace it see what happened, Happy Day! It came up immediately after which I backed it up to my backup drive. 929,000+ files and almost two hours later, the backup was complete. I've run several tests and all seems well.
Again, thanks for having my back...
Jack, W8TEE
-- Jack, W8TEE
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On 2/22/25 13:31, Greg KF5N via groups.io wrote:
You might be able to do that with a Windows machine. You can get a
USB to SATA adapter (plus power supply if required).
So you plug the damaged drive into the adapter, USB into the
working Windows machine, and a drive appears.
If the damage is only in the OS, then the data will be intact. *** Also, you can put the drive & USB adapter in the fridge or freezer, and run it from there. - Jerry, KF6VB
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My sister once had a computer that stopped working.? In her case,
the OS was messed up, not the hard drive.? It was easy to recover
the data from the hard drive using Linux.? However, it sounds like
Jack's issue is with the drive itself.? Trying different machines is
still a good idea, in case something is messed up with a Windows
driver, but it sounds like the drive itself is bad.? If it's a
mechanical drive, I've been known to slap it pretty hard a couple of
times or drop it a couple of inches, to unstick the drive.? That
might work if the drive is stuck.? If you can hear the drive
spinning up when turned on, then it's not stuck.? Throwing it
against a wall probably won't help with the drive but it may help
get rid of some frustration (hi).? Good luck, Jack.
73, John, AA0VE
On 2/22/25 13:31, Greg KF5N via
groups.io wrote:
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Show quoted text
You might be able to do that with a Windows machine.? You can
get a USB to SATA adapter (plus power supply if required).
So you plug the damaged drive into the adapter,? USB into the
working Windows machine, and a drive appears.
If the damage is only in the OS, then the data will be
intact.? But it has been a long time since I tried that with
Windows.? That route may not work with the latest and greatest
Windows OS.
Anyhow those adapters are a great thing to have.? I use one
for backing up to external drives.
?
--
73 Greg KF5N
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Re: CAT with Audio Working. Sort of. Almost.
OK, we're apparently running it at 192kHz. This is supported by the PCM5102 DAC device.
Right now, I am looking through USB specs to figure out how to have the radio
tell the PC that it's 192ksp. In the "Digital Audio Interface Properties" screen, there is a dropdown menu "Select the sample rate and bit depth to be used when running in shared mode". But it's grayed out. This tells me that Windows
should at least be capable of using other bitrates than the standard 44.1ksp.
I found an audio spec on usb.org:
Using Wireshark, I was able to find the exact USB packet where the radio tells
the PC (erroneously) that the sample rate is 44100 samples per second.
AND I found it in the USB teensycore.
Gonna change it now, see what happens.
- Jerry, KF6VB
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Show quoted text
On 2025-02-22 08:56, jerry-KF6VB wrote: So I have the two serial ports AND the audio device working. HOWEVER,
the audio received by the PC is
garbled. I think there is a sample rate mismatch. Are we running
the Teensy audio library at a high rate? Even for audio output?
- Jerry, KF6VB
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You might be able to do that with a Windows machine.? You can get a USB to SATA adapter (plus power supply if required).
So you plug the damaged drive into the adapter,? USB into the working Windows machine, and a drive appears.
If the damage is only in the OS, then the data will be intact.? But it has been a long time since I tried that with Windows.? That route may not work with the latest and greatest Windows OS.
Anyhow those adapters are a great thing to have.? I use one for backing up to external drives.
?
--
73 Greg KF5N
|
K9HZ
jjpurdum
Wayde VA3NCA/AD2GX