Comtek BST-25/216 Synthesized Base Station Transmitter

Comtek BST-25/216 Synthesized Base Station Transmitter

Comtek BST-25/216 Synthesized Base Station Transmitter

B&H # COBST25216 MFR # BST 25-216
Comtek BST-25/216 Synthesized Base Station Transmitter

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Product Highlights

  • 57 Channels in the 216-217MHz Range
  • Single Window, Bright LED Display
  • VU Bar Graph Meter
  • Test Tone Generator
  • Balanced Mic or Line Level
  • Micro Controller
  • Rackmountable
  • Telescopic Antenna Mounts
  • Operates w/ the Phonak MicroEar Receiver
  • 12 Volt DC Power
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This item is noncancelable and nonreturnable

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  • 1Description

The BST-25/216 Synthesized Base Station Transmitter from Comtek is an auxiliary base station transmitter designed to operate in the newly assigned 216-217MHz band under part 95 of the FCC regulations. For highest fidelity operation, the PR-216 receiver must be used with the wide-band companded channels.

This transmitter may be used for personal cueing, for tour guide applications, language interpretation and for 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 the latest 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.

57 user-selectable channels in the 216 to 217MHz range: 38 standard narrow-band, non-companded channels; 19 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 for AC or 12 V DC power and can accommodate a variety of remote antennas
In the Box
Comtek BST-25/216 Synthesized Base Station Transmitter
  • C-16 Carrying Case
  • BST-25 Operator's Manual
  • TWA-72 Whip Antenna
  • AP-12V1 Power Adapter
  • 1-Year Warranty
  • Table of Contents
    • 1Description
    Audio Inputs Mic XLR, 600 ohm balanced -40dBV (nominal)
    Line XLR, 10 kohm balanced 0dBV (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 Telescopic antenna mounts directly into top of transmitter
    BNC RF output connector for optional external antenna
    FCC Compliance Type accepted under Part 95
    Power Requirements 12 V DC, 300 mA max
    Freq. Response (Rec/Repro) 80Hz-8kHz
    Audio Distortion Less than 1% at 80% modulation
    Modulation Soft compressor type with high (25 dB) linear overload protection, attack time less than 1ms, recovery time 10ms
    Gain Control Greater than 40 dB
    Generators Test tone: 400Hz 0.05% distortion
    Modulation Frequency: 5 and 10kHz deviation
    RF Output Power Set for 100mW for FCC Part 95
    Frequency Stability Better than 20 ppm. digitally synthesized, crystal controlled
    Operating Frequency 216-217MHz
    Harmonic & Spurious Emissions Better than 55 dB below carrier
    Dimensions (W x H x D) 6.5 x 1.8 x 5.6" (165.1 x 45.7 x 142.4mm)
    Weight 2.8 lb. (1.2kg)
    Packaging Info
    Package Weight 8.0 lb
    Box Dimensions (LxWxH) 24.0 x 11.0 x 8.0"
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