Electronic counting frequency meter `` Ch3-54 ''.
Instruments for adjusting and controlling the PTA.The electronic counting frequency meter "Ch3-54" has been produced by the Kiev plant "Radiopribor" since the 1st quarter of 1978. The frequency meter is designed to measure the value of sinusoidal and pulse frequencies of signals in the ranges from 0 to 300 MHz, and with separate replaceable units up to 12 GHz.