On Fri, Mar 17, 2006 at 03:02:00PM -0800, [EMAIL PROTECTED] wrote: > On Fri, Mar 17, 2006 at 05:32:20PM -0500, Charles Swiger wrote: > > On Fri, 2006-03-17 at 14:46 -0500, Charles Swiger wrote: > > > There must be a trivial way to change +7.5kHz to -7.5kHz so we can use > > > complex mixing... > > > > > > > Ah ha - it's invert either I or Q. > > > > c2f = gr.complex_to_float() > > phase1 = gr.multiply_const_ff(-1) > > phase2 = gr.multiply_const_ff(1) > > f2c = gr.float_to_complex() > > > > fg.connect((c2f,0),phase1,(f2c,0)) > > fg.connect((c2f,1),phase2,(f2c,1)) > > > > f in, -f out. > > A mathematician calls this operation "complex conjugate". > If it's not already in the gnuradio toolkit, it should be. > > - Larry
It's in the toolkit: gr.conjugate_cc() Eric _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
