Frequency Step

GNU Radio
1

Hi,

I was going through user manual at
http://rapidshare.com/files/72169239/Simple-Gnuradio-User-Manual-v1.0.pdf

In this document I see something called “Frequency Step”. For example,
Page#
183 lists flex_2400_tx has a min freq, max freq and freq step of 2300
MHz,
2900 MHz, and 4 MHz respectively. What does “Frequency Step” actually
mean?

Thanks.

2

On Fri, Sep 12, 2008 at 05:38:02PM -0600, Gnu Radio Explorer wrote:

Hi,

I was going through user manual at
http://rapidshare.com/files/72169239/Simple-Gnuradio-User-Manual-v1.0.pdf

In this document I see something called “Frequency Step”. For example, Page#
183 lists flex_2400_tx has a min freq, max freq and freq step of 2300 MHz,
2900 MHz, and 4 MHz respectively. What does “Frequency Step” actually mean?

Thanks.

For most purposes it means nothing. Tuning is a two step process.
First the front end is tuned, then the DDC is used to get the signal
where you want. In your case, the front end has a step size of 4MHz,
but the library knows that and adjusts the DDC to give you the
frequency that you ask for.

I believe there’s a write up in the FAQ on tuning.

Eric