Comtek BST 75-216 Mini Base Station
- Mini base station transmitter for 216 MHz monitoring
- Balanced XLR and 1/4 in inputs
- Rack-mount or stand-alone, in three EQ versions
From $848.00 USD
Comtek BST 75-216 Mini Base Station
Built into a compact all-metal enclosure, the Comtek BST 75-216 is a mini base station that sends program audio in the 216 MHz band for monitoring, personal cueing, and assistive listening.
Its 10 channels are stored in flash memory and selected on a 10-position switch on the rear panel. The XLR-3F combo input takes a balanced line-level XLR. It also takes a 1/4 in plug from an aux source or a two-wire electret microphone with bias voltage. An LED VU meter shows the audio level. A multi-function RF indicator shows RF output and flags a bad antenna load or an open coaxial cable.
The BNC output takes the short loaded whip antenna or an external antenna. The RF output power is user selectable, up to 100 mW. The BST 75-216 runs on 12 VDC, and it rack-mounts in an RMK-75 or RMK-75-2 faceplate or works stand-alone on a sound cart.
Three versions differ in EQ and channels, as the table below shows. The P version, with extended low-end response, suits program monitoring, while the two standard EQ versions favor speech.
Features
- Mini base station transmitter for the 216 MHz band
- 10 channels stored in flash memory
- Balanced XLR line input and 1/4 in aux or electret mic input
- Multi-function RF indicator for antenna and cable faults
- User-selectable RF output power
- BNC antenna output for an external antenna
- Compact all-metal enclosure
- Rack-mount or stand-alone use
Available Options
| EQ and Channels | Model | Channels | Works With |
|---|---|---|---|
| Pro Audio EQ | BST 75-216 P | 10 wide band companded channels, extended low end | PR-216 |
| Standard EQ | BST 75-216 CW | 10 wide band companded channels | PR-216 |
| Standard EQ with Narrow Band | BST 75-216 CWN | 5 wide band companded channels and 5 narrow band non-companded channels | PR-216 and Phonak Invisity receivers |
What's Included
- Comtek BST 75-216 transmitter
- 12 V universal switching power supply
- SLW 75-216 loaded flexible helical antenna
- C-75 carrying case
Specifications
| Audio | |
|---|---|
| Audio Inputs | XLR-3F balanced line input (+20 dBm max); 1/4 in mono plug input (+5 dBm max) or two-wire electret microphone input with internal bias voltage |
| Frequency Response | 100 Hz to 10 kHz |
| Audio Distortion | Less than 1% at 80% modulation |
| Audio Gain Control | Limited to 20 dB |
| Audio Processing | Companded and non-companded |
| RF | |
| RF Output Power | 100 mW (max for FCC Part 95) |
| Frequency Modulation | 10 kHz deviation companded; 5 kHz deviation non-companded (for all-in-ear receivers) |
| Antenna | Short loaded BNC whip antenna; BNC RF output for an optional external antenna |
| General | |
| Connectors | XLR-3F combo with 1/4 in phone jack; 5.5 × 2.1 mm barrel DC power jack; BNC RF output |
| Power Requirements | 12 VDC, 200 mA max |
| Dimensions | 3.75 × 1.625 × 5.25 in deep |
| Weight | 17 oz |
| Warranty | 1 year, limited |
| Latest Specifications | Specifications are subject to change without prior notice. For current information, visit www.comtek.com. |
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