error on Langstone

Forum for discussion about the Langstone Microwave Transceiver that shares some features with the Portsdown. Wiki: https://wiki.microwavers.org.uk/Langstone_Project
IU2KAC
Posts: 24
Joined: Sun Jun 23, 2019 6:58 am

error on Langstone

Post by IU2KAC » Mon Apr 24, 2023 7:57 am

From today the Langstone doesn't want to hear of working.
I also tried to reinstall it and update the firmware, but nothing changes.
Tried with other Pluto too!

Error message says:
<Lang_TRX_Pluto.py failed to load see/tmp/LannstoneTRX_Pluto.log>

g4eml
Posts: 702
Joined: Thu Apr 26, 2018 9:36 am

Re: error on Langstone

Post by g4eml » Mon Apr 24, 2023 9:00 am

What does the log file say?

Also check your sound device. If it is not working it will cause this.

Colin G4EML

IU2KAC
Posts: 24
Joined: Sun Jun 23, 2019 6:58 am

Re: error on Langstone

Post by IU2KAC » Mon Apr 24, 2023 9:16 am

g4eml wrote:
Mon Apr 24, 2023 9:00 am
What does the log file say?

Also check your sound device. If it is not working it will cause this.

Colin G4EML
where can i see the log file?

Libo IU2KAC

g4eml
Posts: 702
Joined: Thu Apr 26, 2018 9:36 am

Re: error on Langstone

Post by g4eml » Mon Apr 24, 2023 9:27 am

You need to connect to the Langstone as you did when you installed it and enter

more /tmp/LangstoneTRX_Pluto.log

Colin.

OE3GBB
Posts: 10
Joined: Wed Jun 07, 2017 1:01 pm

Re: error on Langstone

Post by OE3GBB » Wed Apr 24, 2024 12:29 pm

I have the same problem here. From the log file I think it is a sound card problem. I have used two different sound devices and with Pluto and Lime so far, but no solution. Which sound card is proved to work?
73 Gerhard OE3GBB
Attachments
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g0mjw
Posts: 2359
Joined: Sat Sep 20, 2014 9:15 am

Re: error on Langstone

Post by g0mjw » Wed Apr 24, 2024 12:34 pm

Looks like the wrong sound device being used? Are you using the specified dongle? See the Wiki.

OE3GBB
Posts: 10
Joined: Wed Jun 07, 2017 1:01 pm

Re: error on Langstone

Post by OE3GBB » Wed Apr 24, 2024 1:07 pm

./set_sound did it! Thanks so much. 73 Gerhard

G0ILO
Posts: 10
Joined: Sun Apr 28, 2024 10:56 am

Re: error on Langstone

Post by G0ILO » Sun Apr 28, 2024 11:31 am

Hi All,

Hope you don't mind me tagging onto this thread but I have the same problem and any help would be appreciated.

I get this for the log. There's an error but I'm not sure how/if I need to deal with it.
log.png
log.png (14.87 KiB) Viewed 2179 times
Get this for the ./set_sound command
audio.png
audio.png (11.47 KiB) Viewed 2179 times
This is the USB audio interface I have. Looked the same in the eBay pictures but this has black instead of white 3.5mm sockets.
USB_Audio.jpg
USB_Audio.jpg (784.7 KiB) Viewed 2179 times
Cheers,

Paul G0ILO

g4eml
Posts: 702
Joined: Thu Apr 26, 2018 9:36 am

Re: error on Langstone

Post by g4eml » Sun Apr 28, 2024 9:19 pm

Paul,
Your problem is not sound card related. The one you have should work OK.

The error log indicates that the GNURadio system was not installed correctly. This is needed for Langstone to work and is normally installed automatically by the install script. However internet problems can cause installs to fail.

I would suggest re-installing Langstone.

Colin G4EML

G0ILO
Posts: 10
Joined: Sun Apr 28, 2024 10:56 am

Re: error on Langstone

Post by G0ILO » Mon Apr 29, 2024 7:03 am

Hi Colin,

Thanks for the response....I did wonder that although before posting I did try a second install and got the same result. I guess I've been unlucky twice. I'll give it another go this evening when home from work.

Cheers,

Paul.

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