error on Langstone

[g4eml]

You could also try just reinstalling GNU Radio

Code: Select all

sudo apt-get -y install gnuradio

And make sure it completes without errors.

Colin G4EML

[G0ILO]

Hi Colin,

I went for an install, no longer get the error message, but it jut sits on the 'Langstone Transceiver' screen. Oh and now I've a red LED active in the USB audio interface which I didn't have before so I guess that's functioning. In the log I get this host error. I'm afraid the Raspberry Pi environment is totally alien to me....
Cheers,
Paul.

Host.png (33.52 KiB) Viewed 867 times

[g4eml]

That is saying it can't find the Pluto device.

The default setting assumes the Pluto is called pluto.local and is at 192.168.2.1

Either the Pluto is not working correctly or it has the wrong name.

If you have changed the Pluto name or IP address then you will need to set it using the set_pluto command.

If the Pluto has the default settings then you could try connecting it to a different USB port.

Also the power supply voltage can be critical. The Pluto doesn't seem to like anything above 5V.

Colin G4EML

[G0ILO]

Okay Colin that gives me a few things to try later.
This Pluto I've previously used on the Satsagen spectrum analyser project and also with an SDR app or two so I could've changed something but I can't remember at the moment. I do have another Pluto to try if things get desperate. That other is untouched, not even carried out the frequency extension mod yet.
Regarding the power supply the whole set-up is running on the official Raspberry Pi PSU but I've no problem supplying something else if required.

Many thanks,

Paul G0ILO.

[radiogareth]

From my experiences with my PD4/Langstone setup I frequently had issues with Langstone not finding the Pluto. I added a low-drop 1A Schottky diode in the +ve supply rail wire in the Pluto lead and the problem went away. RPi is running happily at 5.2/5.25V and the Pluto gets about 4.85V.
Even on the PC, where the USB is perhaps a tad under 5V, the Pluto remains happy.
Gareth

[G0ILO]

Thanks for the input chaps.

I've had COVID so only just picked this up again. Anyway, tried second Pluto, Schottky diode in Pluto positive rail, different power supply, fresh install using a new SD card but still no cigar.
I do now get this in the log rather than 'cannot find host' or similar.

Log2.png (18.17 KiB) Viewed 527 times

[G0ILO]

Actually above was on my second Pluto. Attached is my original one and the log I'm receiving now.

Log3.png (36.93 KiB) Viewed 520 times

[g4eml]

Those errors are still saying it cannot see the Pluto.
You could try the following.

Log in using SSH and try pinging the Pluto to check it is responding.

Code: Select all

ping 192.168.2.1

You should see multiple 64 byte messages confirming the connection.

If that fails then check the configuration of the Pluto

Code: Select all

sudo mount /dev/sda1 /mnt
more /mnt/config.txt
 

This should show the Pluto config file.
In the [NETWORK] section it should read

hostname = pluto
ipaddr = 192.168.2.1
ipaddr_host = 192.168.2.10
netmask = 255.255.255.0


Colin G4EML

[G0ILO]

Hi Colin,

Just done as you suggested and I'm assuming all is correct?

ping.png (89.53 KiB) Viewed 322 times

Pluto_config.png (30.7 KiB) Viewed 322 times

[G0ILO]

I did go for another install but took the option to select the hardware just to see what gives

opening screen

1.jpg (402.76 KiB) Viewed 281 times

After selecting Pluto

2.jpg (462.82 KiB) Viewed 281 times

After 10 seconds or so back to this screen

3.jpg (444.09 KiB) Viewed 281 times

Then it'll go all screwy if I select Pluto again.

4.jpg (490.61 KiB) Viewed 281 times