Re: [Discuss-gnuradio] SSB Modulator

[Matt Ettus]

Eric Blossom wrote:
> On Sun, Apr 08, 2007 at 09:59:21AM +0930, Berndt Josef Wulf wrote:
>   
> > G'day,
> >
> > I've found various implementations of SSB demodulators but no modulators? Has 
> > anyone written or seen an implementation of a SSB modulator?
> >
> > cheerio Berndt
> >     
>
> Here you go:
>
>   real_sig = <whatever>                # at 250k samples/sec
>   f2c = gr.float_to_complex()
>   u = usrp.sink_c(0, interp_rate=512)
>   fg.connect(real_sig, f2c, u)
>
> Eric

Actually, that will get you a double sideband signal.  You need to use a 
hilbert transform to create the imaginary part.  Hilbert transforms are 
in firdes code already.

Matt