Overview
Comtek BST-25-216 RMK, Program Monitoring Transmitter, Rackmount
The BST 25-216 RMT 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.
Application
- Remote Program Monitoring
- Personal Cueing
- Assistive Listening
Features
- 57 User-Selectable Channels
- Balanced Mic or Line Level Input
- Companded and non-Companded Audio Processing
Specifications / Documents
- Audio Inputs:
- Mic: XLR 600 ohm Balanced -40 dBV (nominal)
- Line: XLR >10 k ohm Balanced 0 dBV (nominal)
- Antenna:
- Antenna Not included
- 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 Compliance: 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.
