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does the pi4 operating system that comes with the sbitx v3 support booting from the usb port? can it be set to do that without opening the case?? tnx Don w8ptb

All -?

I fixed the scope display for CW mode today. The frequencies are back!

To update your system..

open terminal
type cd sbitx
type ./update



-JJ

Hi.

Our Discord server is available at ?


-JJ

I've been taking a look at the CW keyer, which is also kind of broken in that it doesn't really work at higher speed keying with a paddle or a straight key.?

One thing indicated in a comment in the cw modem specifically is the `modem_poll` function (in modems.c) is called about 10-20 times per second, which to me seems too slow for high speed (20-25 wpm+) CW keying.

The same function also appears to manage PSK31 transmission, but I don't know enough about PSK31 to understand whether 10-20 seconds is fast enough, or whether the problem might be elsewhere. It might be somewhere to start, just not sure.?

Apart from this, there is a comment at the top of the modems.c file that explains how the digital modems work:?

/*

This file implements modems for :

Fldigi: We use fldigi as a proxy for all the modems that it implements

?

?

General:

?

There are three functions called to implement almost all the digital modes

1. There is the modem_init() that is used to initialize all the different modems.

2. The modem_poll() is called about 10 times a second to check if any transmit/receiver

changeover is needed, etc.

3. On receive, each time a block of samples is received, modem_rx() is called and?

it despatches the block of samples to the currently selected modem.?

The demodulators call write_console() to call the routines to display the decoded text.

4. During transmit, modem_next_sample() is repeatedly called by the sdr to accumulate

samples. In turn the sample generation routines call get_tx_data_byte() to read the next

text/ascii byte to encode.

?

*/

Good luck!

Hi Gyula,

I did the file edit for the timezone e.g. removing reference to Arizona, saved, then rebooted but now it is asking for a password.

I have tried:

123
1234
12345
hf12345
hf
hf1234
hf123
etc

So at the moment it is a 'pretty' decorative desk item!

As for grid reference, I enter:
\MYGRID IO93GT but it shows "NOWHER", there is a screenshot in my recent post.

However, all this is academic until I can logon back in, might be a restore from the disk image, glad I made that on Raj suggestion!

73's
Ray
G7POQ

Thank you Gyula.

I changed my settings to UK and Europe/London GMT (UTC) or thought I did.

And thank you for the document link.

73's
Ray
G7POQ

I am a new owner of the sbitx v3. Already really enjoying it. I got the radio to learn and grow my knowledge of digital protocols specifically.

I see that the native PSK31 mode is broken. I'd like to try and fix it in order to learn better how the sbitx software is built. Does anyone have any pointers on why its currently broken? I imagine the modem parts are fine since it relies on fldigi, so is it likely the interaction with the gtk app ? Maybe I fix it maybe I don't but I hope to learn either way. Thanks in advance.

?

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73

Hello new here. Where can I get an invite to the discord server?

73

sBitx pwd: 123, password requested when installing file or changing system file: hf12345 (default).

Since the farhan app on github hasn't been modified in 5 months, I'm not sure if a ./update would help with the update. Can you post a picture of the GRID entry?
If you have an external keyboard, you can take a screenshot by pressing the PrtScr button, which can be found in the /Home folder in the date-time_image_size.png format.
?
--
Gyula HA3HZ

having the sd card available without disassembly would be nice. Perhaps an accessory port for the sd card??? Don w8ptb

Ray,
I have had an sBitx v2 since last April. At that time, a 40-page Hello booklet was packed with the device, which you can find on github under the name There was no measurement protocol at that time.
You have to make the first setting in the Raspberry Pi Configuration (Desktop-Menu-Preferences- RPi Configuration)
Settings: Localization-> Set Locale (Language en, Country US, Char.: UTF-8 Click: OK
Set Timezone: Europe, Budapest
Set Keyboard: if there is an external keyboard select
Set WiFi Country Code: select OK
Do not change the language setting, because it affects the operation of sbitx.
I didn't have to enter or change anything in the /Home/pi/.profile file you read in the previous message.

Since I'm using sBitx under 64-bit Bookworm OS, TimeZone runs fine thanks to W9JES.
I don't know if the TZ setting has been changed in the current 32-bit sBitx app.
--
Gyula HA3HZ

The start order of individual apps can be important. Note that this is how it works now.
I don't use VNC, I haven't needed it so far.
--
Gyula HA3HZ

What booklet?
My sBitX v3 was preassembled and calibrated, came with a 'hello' letter, sheet with all the 'parameter's' and an invoice sheet.

That is a great link, thank you.

I think they should included more information with preassembled units, not all of us are hackers, tinkerers or coders, for one reason or another but like using radios.

73's
Ray
G7POQ

A bit of an update......

If I am using SBITX on my bench - the waterfall works fine.? If I start sBitx while in VNC Viewer (paid account) - the waterfall is yellow.

If I start sBitx and then connect with VNC Viewer - it works normal.

thanks!? helps a lot.? Don w8ptb

PA: nothing found re my grid
location not saving, do you have any idea please?

Thanks, using topics appears to search better, getting used to group.io, yet another 'forum' app!
?73's
Ray
G7POQ