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• 57 User-Selectable Channels
• Balanced Mic or Line Level Input
• Companded and non-Companded Audio Processing
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.
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