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schema frecventmetru de radiofrecventa


Guest incepatorul_tm

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Guest incepatorul_tm

buna ziua! va rog sa ma ajutati daca aveti o schema de frecventmetru radiofrecventa, sa acopere frecventele de la 100 khz pana la 30 mhz.

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  • vio2007

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Frequency Counter :google

variante de frecventmetre :

a - cu CI compatibile TTL ,seria 74HC/74HCT,masoara pana pe la 50Mhz.Scheme si pcb in revista ConexClub.

b - cu microcontroler PIC XXXX , masoara pana la 50Mhz ,unele pot fi utilizate ca scala numerica .

Daca se foloseste divizor de frecventa (prescaler),frecventa masurata poate ajunge la 1Ghz (sau mai sus functie de prescaler).

http://www.g7ltt.com/njqrp/ik3oil-counter.pdf

http://www.hamradioindia.org/circuits/fcountlcd.php

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