Raspberry Pi based remote SDR head

Simon PurplePlaNET simon at purpleplanet.org
Sat May 11 20:31:27 UTC 2013

Ah, OK - I've got you.

You also need to run the script once you have launched rtl_tcp using the command in step 3) below. 

The simplest way to do this would be to add a step:

6) Sign in to rPi with a new terminal session, leaving the old one open for now. cd to the directory where you created the script and then run it using this command: 

./rtl-robot (or whatever you called the script)

You could run the script from the same terminal that you launched rtl_tcp from if you used & to force rtl_tcp to detach from the console and run in the background. 

I'll edit the comments on the script to make that a bit clearer...



----- Original Message ----- 
From: "Favati" <smile_k at libero.it> 
To: osmocom-sdr at lists.osmocom.org 
Sent: Saturday, 11 May, 2013 20:14:36 GMT +00:00 GMT Britain, Ireland, Portugal 
Subject: Re: Raspberry Pi based remote SDR head 

> Could you describe exactly the steps you have taken? 

1) installed wiringpi (and tested as described on the developer site) 
2) created your script 
3) launched this command: 

stdbuf --output=0 rtl_tcp -a -p 1234 > rtl.data 

4) used sdrsharp to connect to my raspberry (, and it 
connect ok, i can use sdrsharp ok) 

5) nothing is displayed on the console of my raspy except the first 2 
lines of rtl_tcp output 

The rtl_data is created ok and looking inside that file i can see the 
normal output of "rtl_tcp" (set freq blablablabla, etc...) 

At the moment i've taken another approach...i've patched the rtl_tcp.c 
to set the gpio directly...i'll post my "project" asap somewhere... 

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