Quality Electronics for Wildlife,
Environmental Research,
and Special Applications

Marker Beacon VHF Transmitters (TMB)


Telonics Marker Beacon Transmitters are designed for calibrating RA-NS and other direction finding antenna arrays, calibrating data acquisition systems, pin-pointing specific locations from aircraft, locating camps in heavy vegetation, etc. The transmitter is supplied with a permanently mounted, semi-rigid monopole antenna and includes the CAST-2 Antenna-end casting option.

Key Features


Configuration Dimensions L x W x H (in, cm) Unit Weight (g) Transmitter Electronics Life @60BPM
Std Pow (months)
Life @60BPM
High Pow (months)
TMB-500 1.4 x 2.0 x 2.7
3.65 x 5.1 x 7.1
260-270 MK9 47.6 38.6

Lithium Battery Shipping Regulations

Telonics, Inc. ships all systems containing lithium batteries in accordance with United Nation and US Federal regulations for shipping hazardous materials.

49 Code of Federal Regulations

IATA Dangerous Goods Regulations (current year)

Service Commitment

Since 1970, Telonics has built a reputation based on product quality, product support, service, and customer satisfaction. Telonics strives to produce the highest quality products, and to support those products accordingly.

Because of extreme conditions and the unpredictable nature associated with most telemetry applications, problems occasionally arise. Most problems can be resolved quickly. In all cases, we hope to be able to work in partnership with users to resolve problems to the user's satisfaction and to uphold our demonstrated commitment to excellence. If problems should arise, all products must be returned to our factory for failure analysis.

Warranty: VHF Transmitting Subsystems

Page last updated on Wednesday August 12, 2015