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VHF, in full very high frequency, conventionally defined portion of the electromagnetic spectrum including any radiation with a wavelength between 1 and 10 metres and a frequency between 300 and 30 megahertz. VHF signals are widely employed for television and radio transmissions.

Radio telemetry has been used to study the home range and movement of populations. Specific migratory routes and dispersal behavior can be followed through radio tracking. Survivorship is often monitored with radio telemetry by studying age and mortality rates.

It is primarily used to monitor animal location and gather data. There are different kinds of tracking collars: VHF collars that use radio signals, GPS collars, and now - high-tech smart collars. Tracking collars are very important because they provide valuable data to researchers and environmentalists.

VHF tags transmit a VHF radio signal which can be detected from the ground or air by a radio receiver. This enables researchers to locate and track the radio-tagged animal in real time. GPS tags use the Global Positioning System to identify and record the animal's location at regular points in time.

Very High Frequency (VHF) transmitters are commonly used in wildlife research. These transmitters are battery-powered devices that send out low power, low duty cycle pulses at a specific frequencies in the 148 to 152 MHz range.