[RFI] Unknown Signal

[Billy Cox]

>I popped my wife's telephone apart, and it has a simple 28.63 crystal.
>Obviously they are everywhere.
> 
>>The 28.636 Mc. signal comes from video cards/circuits in computers & some
>>TV's.  Poke around  PC  boards and you'll find clock osc modules in
>>hermetically sealed rectangular cans, marked  28.636 Mc. 

QSL on that ... we HAD a Panasonic TV/VCR combo ... similar "birdie"!

73 Billy AA4NU