1,300 GHz LCD frequency meter with PIC 16F84 and U664b prescaler
Project based on IK3OIL design and schematics http://digilander.libero.it/ik3oil/_private/Frequenzimetro_eng_2003.pdf
(PIC 16F84 software also IK3OIL provider)
U664b it's 1,3 GHz prescaler and typically 64 divider
Final project (12V/200mA external PSU required)