Counter
Start Omhoog Working Conditions ATV Experiments LINKS Excursions Logs QSL Policy

 

 

Universal 2-channel Frequencies/Period counter. 

Characteristics:

bulletA-Channel 10-50-500 MHz
bulletB-Channel 10 MHz
bulletFrequency of A
bulletRatio A/B
bulletExternal Clock
bulletCount
bulletTime measurements A/B
bulletPeriod A
bulletTime-Base: 0.01 sec -> 10 sec
bulletA and B trigger selectable on raising or falling edge
bulletHold and Reset function

 

General:

The counter is made of four printed circuits: The power supply, the counter logics, the display and switches are on a board and a preamp/pre-scale board.

Momentarily the preamp board is still on a wire-wrap board because I have not found yet an suitable 500 MHz broadband amplifier. The original prescript amplifier is no longer available in Belgium. If there is someone who has a good suggestion, you're welcome.