[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] R820T frequency tuning issue
|
From: |
jmfriedt |
|
Subject: |
Re: [Discuss-gnuradio] R820T frequency tuning issue |
|
Date: |
Fri, 27 Feb 2015 13:23:27 +0100 |
> As briefly mentioned on the #gnuradio IRC mailing list, I am facing an issue
> with tuning a R820T
^^^^^^^^^^^^
channel
[...]
> I have completed the following experiment:
> * a frequency synthesizer (Rohde & Schwartz SMA100) is set to 1570 MHz,
> output power of -10 dBm,
> lab-made antenna (ie, dangling wire)
> * R820T DVB-T located next to the synthesizer
> * either running rtl_sdr -f 1570000000 -n 100000 file.bin and plotting the
> resulting log in GNU/Octave
> (f=fopen('file.bin');d=fread(f,inf,'uchar');plot(abs(fftshift(fft(d))))) ...
^
d=d(1:2:end)+i*d(2:2:end)
sorry for the mistakes.
JM
--
JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 32 av. observatoire, 25044
Besancon, France