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Comtek BST-25/216 Synthesized Base Station Transmitter

B&H # COBST25216 Mfr # BST 25-216
Usually ships in 7-10 business days

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This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.

International Orders*
For international orders, credit cards will be charged at time you place your order.

Free Standard Shipping
Not eligible for free Expedited Shipping
You Pay: $1,745.00
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

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
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)
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
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