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User Manual for Comtek BST-25 216 Synthesized Base Station Transmitter Click to enlarge the picture
Contents of the user manual for the Comtek BST-25 216 Synthesized Base Station
- Product category: Base Stations Comtek
- Brand: Comtek
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Comtek Base Stations
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User manual for the Comtek BST-25 216 Synthesized Base Station contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Comtek product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Comtek user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Comtek product will considerably shorten its lifespan!
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Product description 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
In the Box 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 Table of Contents
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Technical parametersComtek BST 25-216 Specs | 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) | | | | Package Weight | 8.0 lb | | Box Dimensions (LxWxH) | 24.0 x 11.0 x 8.0" |
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