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A multiple-use wildlife transmitter
A versatile wildlife monitor has been developed by combining a 164-megahertz radio-frequency transmitter with two digital integrated circuits. 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 a drop in body temperature), and delayed turn-on. A fully assembled circuit weighs about 11 grams; adding batteries, potting, antenna, and an attachment device results in a package weighing 50-350 grams, depending on operating time.
- "A versatile wildlife monitor has been developed by combining a 164-megahertz radio-frequency transmitter with two digital integrated circuits. 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 a drop in body temperature), and delayed turn-on. A fully assembled circuit weighs about 11 grams; adding batteries, potting, antenna, and an attachment device results in a package weighing 50-350 grams, depending on operating time."@en
- "A multiple-use wildlife transmitter"
- "A multiple-use wildlife transmitter"@en