Comtek BST 25-216 Base Station Transmitter

PA SKU # CTK BST25216 MFR # BST 25-216
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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

Frequency Synthesized, Base Station Transmitter

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 for a wireless system. 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
  • Audio Inputs:
  • Mic: XLR 600 ohm Balanced -40 dBV (nominal)
  • Line: XLR > 10 k ohm Balanced 0 dBV (nominal)
  • Antenna:
  • 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
  • Dimensions: 6 1/2" W x 1 3/4" H x 5 5/8" D
  • Weight: 44 oz.
  • FCC Compliance: Parts 22, 74 and 90
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