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Re: [Discuss-gnuradio] Minimum value for center frequency step size
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Minimum value for center frequency step size |
Date: |
Tue, 10 Mar 2009 10:15:14 -0700 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
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
Re: [Discuss-gnuradio] Maximum value of samples, Don Ward, 2009/03/10