RF cable can be customized for other specifications
Far field transmitting circuit
Q1 is a Pierce oscillator operation in the basic mode of the 7.06MHz crystal, allowing field strength testing at 14.12, 21.18 and 28.24 MHz for 20, 15 and 10 meters. The antenna uses a 5 foot length wire connection as a dipole.


Ultrasonic Annunciator

Ultrasonic Annunciator,Ultrasonic Piezo Annunciator,Outdoor Ultrasonic Annunciator,Ultrasonic Piezoelectric Annunciator

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