Comtek BST-25 Synthesized Base Station Transmitter – TV 5/6 – 76.2 – 87.8 MHz


  • Rackmount Design
  • 119 User-Selectable Channels
  • Mic/Line XLR Input
  • Switchable EQ


The Comtek BST-25 is an advanced and versatile IFB, cueing, and monitoring transmitter for broadcast, film, and live applications.

The rack-mountable unit features 119 user-selectable channels operating in the 76.2-87.8 MHz range to minimize interference. It has a switchable mic/line level XLR input with 60 dB of control range. A bright LED display shows frequency, channel, VU meter, and special functions.

The BST-25 offers superb speech intelligibility and high-fidelity audio thanks to a switchable EQ circuit. The audio processing system can operate companded or non-companded to work with a wider variety of receivers.

The BST-25 is recommended for use with the PR-25 and PR-216 synthesized receivers, which are available separately.

Note: This unit includes either a carrying case and whip antenna or rack-mounting hardware. Please call for ordering info.

The BST-25 is a low power auxiliary base station transmitter designed to operate under Part 74 of the FCC Regulations in the unused TV channel 5 and TV channel 6 spectrum (76.2 to 87.8 MHz).

Optional Rack Mounting
119 User-Selectable Channels
Operates in the 76.2 – 87.8 MHz Range for Minimized Interference
Switchable Mic/Line Input with 60 dB of Control Range
LED Display Shows Channel, Frequency, VU Meter, and Special Functions
High Fidelity Audio with Superb Speech Intelligibility
Companded/Non-Companded Operation Accommodates Greater Variety of Receivers
Please Note:

This unit includes either mounting hardware, or a carrying case and whip antenna. Please specify


Audio Inputs 1 x XLR (Mic/Line Switchable)
Antenna Telescopic Antenna Mounts Into Top of Transmitter
Optional External Antenna Via BNC RF Output
FCC Compliance Type Accepted Under Part 74
Power Requirements 12 Volts DC, 300 mA Maximum
Frequency Response 80Hz – 15kHz
Distortion Less Than 0.5% at 80% Modulation
Limiter Soft Compressor Type with High (25 dB) Linear Overload Protection; Attack Time – Less Than 1 ms, Recovery Time – 10 ms
Gain Control Greater Than 40 dB
Operating Frequency 76.2 – 87.8 MHz
Dimensions (WxHxD) 6.5 x 1.75 x 6.6″ (165 x 44 x 168mm)
Weight 2.75 lbs (1.25 kg)

Additional information

Weight 8.50 lbs


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