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  • Regular price $230.00
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This transmitter was developed with wildlife researchers and Ecologists in mind who require discreet acoustic monitoring and data collection through a method that eliminates human presence and habitat disruption.

This is one of our most popular Audio Surveillance Transmitters, pushing 16mW of RF and capable of transmitting ambient audio for 8 days straight. This is a permanent, always-on "hot-microphone", once the batteries are inserted the WTX3 will begin live transmission of ambient and surrounding audio without interruption on the Ultra High-Frequency band over a distance of 700 to 1000 metres through thick bush and vegetation, to any UHF receiver system (portable or stationary, including Software-Defined Radio receivers).

Use this transmitter to remotely listen to an area of interest that requires discreet acoustic monitoring. We recommend any handheld UHF receiver capable of tuning into the 400MHz-700MHz range, this is a standard range in most UHF receivers. Our recommended handheld receiver is a Baofeng UV-5R. Your WTX3 will arrive with its specific Tx/Rx frequency noted on its back.

Power Supply 2x AA Rechargeable Alkaline (3v): 210 Hours Of Continuous Operation.
Dimensions 1in x 3in x .8in

100Hz ~ 20kHz Panasonic: Analog Microphone Electret Condenser. Directional Characteristic: Omni-Directional
Sensitivity: -7.0 ±4 (0 dB = fs/Pa@1kHz).
Signal to Noise Ratio: 78 dB Typ. at 1kHz.
Max Input Sound Level: 101 dB SPL Typ.

Weight Without Batteries: 40g | With Battery: 60g
Output (RF) power  16mW
Antenna 60mm OR 110mm: 1mm NitiNol, Shielded.
Frequency Range

430MHz-700 MHz, 2.5 kHz step.

Effective Range 15m From Centre. 
Stability  Highly Stable. Crystal Referenced Phase-Locked Loop.
Crystal 00k/ASK Data Transmitter.

TINYTX's transmitters are easily paired with any compact hand-held transceiver. Any Two-Way UHF Radio will work, but we recommend the BaoFeng UV-5R from FengBros. Fengbros has been our trusted supplier for the last year, they offer certified Baofeng radios at the most competitive price.

In order to maintain its longevity, the WTX3 comes potted with a compound that seals all onboard components. Only the microphone and the battery terminal are accessible and made visible. If you’re looking for even more operational time (12 Days), check out the WTX2 here.

(PCB REV 2.0)