[Discuss-gnuradio] Re: new to GNU radio

[Patrick Strasser]

Manav Rohil wrote am 2008-03-04 17:37:

> I cannot see a carrier frequency specified anywhere in bqpsk.y..Where do 
> i specify the carrier frequency for my transmission...this part is still 
> a bit hazy...

All modulation is done in basis band, and then the signal is shifted to 
the carrier frequency.

It's funny to listen to and think of, but it is definitely correct to do 
phase or frequency modulation with a carrier of 0 and shift it to the 
target freuency afterwards. Mathematically it's the same as modulating 
the carrier.

Patrick
--
Engineers motto: cheap, good, fast: choose any two
Patrick Strasser <patrick dot strasser at tugraz dot at>
Student of Telematik, Techn. University Graz, Austria