This unit is designed as a standard signal source for field use. Its main purpose is for checking the proper operation of your entire receiving system (antenna, coax cable and receiver) at the beginning of each day of field work. The beacon is useful for training new personnel, calibrating an antenna array (null-peak system, etc.), checking for signal anomalies in a study area and finding your way back to camp at the end of a long day. It can also be made to operate as a trap site beacon.
Frequency Range: 138 to 235 MHz.
Transmitter: Crystal controlled two stage design, pulsed by a CMOS multivibrator. An LED indicator next to the antenna jack pulses in synchrony with the transmitter, verifying operation.
Pulse Width & Rate: ~25 ms, nominal 1 p/s (60 p/m).
Life Span & Weight: Nominal 50 weeks. Weight 50g.
Power Output: Peak power ~5 mw.
Housing: The transmitter is encapsulated in the waterproof case of a small flashlight. The flashlight housing contains 1 standard "AA" lithium battery replaceable by the user.
Antenna: A banana plug/binding post is provided for a ¼l antenna or any other length antenna. A ¼l copper wire antenna with a male banana plug is supplied but any piece of wire will work.
Activation: Applying the attached magnet activates the transmitter.