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HomepageMonitoringIn-Ear Systems › Comtek BST 25-216
Comtek BST 25-216

The BST 25-216 transmitter incorporates the latest digital and analog technologies to produce low residual noise, wide dynamic range, and extended frequency response.

For highest fidelity operation, the PR-216 receiver can be used on the wide-band companded channels. The BST 25-216 is also compatible with other manufacturer's all-in-ear type receivers operating in the 216-217 MHz band on the narrow band non-coompanded channels with a special EQ setting. The transmitter's microcontroller automatically sets the modulation deviation and the audio mode for companding processing when corresponding channels are selected.
  • 57 User-Selectable Channels
  • Balanced Mic or Line Level Input
  • Companded and non-Companded Audio Processing
  • Specifications
    Audio Inputs:
    Mic: XLR 600 ohm Balanced -40 dBV (nominal)
    Line: XLR > 10 k ohm Balanced 0 dBV (nominal)

    Telescopic antenna mounts directly into top of transmitter
    BNC RF output connector for optional external antenna

    RF Output Power:
    Set for 100 mW

    Operation Indicators:
    LED Bargraph VU Meter displays audio input (modulation)
    Two-Digit Alpha Numeric Display shows operating channel
    Five-Digit Numeric Display shows operation frequency
    Antenna indicator displays deficient antenna condition
    Lock-out Indicator shows tuning has been disabled

    Power Requirements:
    12 Volts DC, 300 mA max

    Frequency Response:
    80 Hz to 8 kHz

    Audio Distortion:
    Less than 1% at 80% modulation

    Modulation Limiter:
    Soft compressor type with high (25 dB) linear overload protection; attack time less than 1 ms; recover time 10 ms

    Audio Gain Control:
    Greater than 40 dB

    Test Tone Generator:
    400 Hz 0.05% distortion

    Frequency Modulation:
    5 kH and 10 kH deviation

    Frequency Stability:
    Better than 20 ppm; digitally synthesized; crystal controlled

    Operating Frequency:
    216-217 MHz

    Harmonic and Spurious Emissions:
    Better than 55 dB below carrier

    6 1/2 W x 1 3/4 H x 5 5/8 D

    44 oz.

    FCC Compliance:
    Parts 22, 74 and 90
    Price *
    Free shipping in Canada. Conditions
    Additional information
    For more information about the BST 25-216, please visit the website of Comtek
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