RF video reciever - digital tuning

[Jerson]

Anybody know what i can do to be able to "tune" the frequency of my RF video receiver using my pic.

Basically i want to replace the knob so that i can control the receiver using a pic... what do i need to do this... it's for one of these wireless video recievers...

I have multiple cameras which are on slightly different frequencies.

I'd like to be able to "select" a camera from my software program, but need to know how to replace the knob so that i can tune using a pic.

Please let me know if you know

I think you need to use a fractional N PLL chip to slect the frequency of your choice. Off the top of my head, I cannot recollect the chip I used. This was in 1995. If you need more, just let me know, I can dig out the part number for the chip.
EDIT : I do think you are lucky -- the tuner I used was ALPS TEKE9X094A pll tuner with 50Khz resolution to build a set top channel converter. If you want a PLL chip, try using the MC 145191


Jerson