Re: [Discuss-gnuradio] Minimum value for center frequency step size

[Karim El Defrawy]

> Which interface are you using to set the center frequency?

The "tune" method.


> If you use the "tune" method, it adjusts both the VCO on the
> daughterboard and the digital up/down converter giving a minimum step
> size of about 0.01 Hz.

OK, thanks. That's good to know.


Eric Blossom wrote:
> On Tue, Mar 10, 2009 at 05:33:36AM +0100, Karim El Defrawy wrote:
> > Hi,
> > I am using a FLEX2400 transceiver daughterboard and was wondering what's  
> > the minimum step size that I can use to set the center frequency.
> >
> > I tried steps down to 500KHz and I could tell the difference between the  
> > generated carrier frequency of a sine wave on an oscilloscope.
> >
> > When I tried lower steps I was not able to see any difference in the  
> > generated frequency.
> > Thanks,
> > Karim
>
> Which interface are you using to set the center frequency?
>
> If you use the "tune" method, it adjusts both the VCO on the
> daughterboard and the digital up/down converter giving a minimum step
> size of about 0.01 Hz.
>
> Eric