Comtek BST-25/216 Synthesized Base Station Transmitter with Rackmount (1 RU)

Comtek BST-25/216 Synthesized Base Station Transmitter with Rackmount (1 RU)

Comtek BST-25/216 Synthesized Base Station Transmitter with Rackmount (1 RU)

B&H # COBST25216RM MFR # BST 25-216 RMK
Comtek BST-25/216 Synthesized Base Station Transmitter with Rackmount (1 RU) Transmitter


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Comtek BST 25-216 RMK overview

  • 1Description

The 1RU BST-25/216 Synthesized Base Station Transmitter from Comtek is an auxiliary base station transmitter which comes with a 1RU rack-mounting faceplate. The base station transmitter is designed to operate in the 216-217 MHz band under parts 22, 74 and 90 of the FCC regulations making it compatible with other manufacturers' all-in-ear type receivers operating in this band. For highest fidelity operation, the PR-216 receiver must be used with the wide-band companded channels. An external antenna (not included) can be attached through a BNC RF connector. This transmitter may be used for personal cueing, tour guide applications, language interpretation, and assistive listening. The BST-25/216 also operates with the Phonak microEar VHF in-ear receiver in the narrow-band non-companded channels. The BST-25/216 transmitter incorporates digital and analog technologies to produce low residual noise, wide dynamic range, and extended frequency response rendering the most natural sound possible from a wireless system.

60 user-selectable channels in the 216 to 217MHz range: 40 standard narrow-band, non-companded channels; 20 high-fidelity narrow-band channels with companded audio processing
Single window, bright LED display for exact frequency and channel, VU bar graph meter, antenna condition and lock-out indicator
Test tone generator for receiver testing and audio level referencing
Balanced mic or line level with 60 dB of control range to accommodate any audio level
Micro controller automatically sets the modulation deviation, audio mode for processing, and the EQ when corresponding channels are selected
It can be rackmounted, and can accommodate a variety of remote antennas
In the Box
Comtek BST-25/216 Synthesized Base Station Transmitter with Rackmount (1 RU)
  • RMK-25-216 Rack-Mounting Faceplate (1RU)
  • 4 x Rack Screws
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Comtek BST 25-216 RMK specs

    Audio Inputs Mic XLR, 600 Ohms balanced -40 dBV (nominal)
    Line XLR, 10 Ohms balanced 0 dBV (nominal)
    Connectors XLR-3 female audio input connector for mic and line input
    XLR-4 male power input 12 V
    BNC type RF output connector
    Indicators LED bar graph VU meter displays audio input (modulation)
    Two-digit alpha numeric display shows operating channel
    Five-digit numeric display shows operating frequency
    Antenna indicator displays deficient antenna condition
    Lock out indicator shows tuning has been disabled
    Antenna BNC RF output connector for optional external antenna
    FCC Compliance Type accepted under Parts 22, 74, and 90
    Power Requirements 12 VDC, 300 mA max
    Freq. Response (Rec/Repro) 80 Hz - 10 kHz
    Audio Distortion Less than 1% at 80% modulation
    Modulation 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
    Generators Test Tone: 400 Hz 0.05% distortion
    Modulation Frequency: 5 and 10 kHz deviation
    RF Output Power Set for 100 mW
    Frequency Stability Better than 20 ppm, digitally synthesized, crystal controlled
    Operating Frequency 216-217 MHz
    Harmonic & Spurious Emissions Better than 55 dB below carrier
    Dimensions 6.5 x 1.8 x 5.6" (165.1 x 45.7 x 142.4 mm)
    Weight 2.8 lb (1.2 kg)
    Packaging Info
    Package Weight 4.95 lb
    Box Dimensions (LxWxH) 16.3 x 12.7 x 8.9"

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