Multiple - use wildlife transmitter

A versatile wildlife monitor has been developed by combining a 164-megahertz radio-frequency transmitter with two digital integrated circuits.

Kolz, A. L.; Corner, G. W. +1 more · 1970

Abstract

The design provides a basic pulsing transmitter for normal location monitoring, but simple circuit changes provide additional capabilities: monitoring of the animal"s temperature, movements, or death (through either cessation of movement or drop in body temperature), and delayed turn-on. A fully-assembled circuit weighs about 11 g; adding batteries, potting antenna, and an attachment device results in a package weighing 50-350 g, depending on operating time.

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Multiple - use wildlife transmitter

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