Re: Si570 Set Frequency

Alfredo Mendiola Loyola

I got it.
Thank you for your help.
Alfredo Mendiola Loyola

On Wednesday, April 17, 2019, 2:31:00 PM GMT-5, Ambro_IW2FVO via Groups.Io <> wrote:

IF_offset is simply the value of the Intermediate frequency ( IF ) of your receiver .
If you want to receive 432.000 MHz and your receiver IF is 21.4 MHz then your SI570 shall output 432.000 MHz - 21.4 MHz for low side injection
or it shall output 432.000 MHz+ 21.4 MHz if you use the top side injection.
If you set the IFO_FRQ=0 in the code then the SI570 will output the frequency value received through the serial link ( from the IDE monitor ) without any offset.
73, iw2fvo

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