Q R P

FREQUENCÍMETRO + PRÉ ESCALER


    This frequency counter has like base the 7 digits Frequency Counter, however a circuit of entry (amplifier) was added, as well as a circuit of prescaler. In this conditions there is no need of straight connection to the RF generator, being enough to use a small piece of joined thread like antenna. It is possible to do reading up to 200MHz.

 

     

The sign in is directed to the pins 2 and 3 of the PIC by the capacitor C12 of the prescaler. The PIC must be planned when two decimal point is altered, since the prescaler is dividing for 100, for example, to read: 162,33 MHz the prescaler will hand to the PIC over the value of 1,6233 MHz, value that will be shown in the LCD if we do not alter the decimal point, doing the dislocation for the left will be presented 162,33 MHz.

 

 

The password is py2rlm
    DOWNLOADS (code.asm - display.inc - PCB)
*** Attention: to compille, place the 
code.asm and display.inc in the same diretory

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