Listen Technologies LA-81 – 4-Way RF Antenna Combiner
Listen Technologies LA-81 – 4-Way RF Antenna Combiner is backordered and will ship as soon as it is back in stock.
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Listen Technologies LA-81 – 4-Way RF Antenna Combiner
Product Overview
The Listen Technologies LA-81 is a 4-way RF antenna combiner, allowing up to four RF assistive listening transmitters to share a single antenna. Any venue running simultaneous interpretation or audio description needs one transmitter per channel, and running an antenna for each is neither practical nor electrically sound.
Product Description
Multi-channel RF assistive listening requires one transmitter per channel. A venue offering the floor language plus two interpretation feeds needs three transmitters.
Running a separate antenna per transmitter is the obvious approach and the wrong one: adjacent antennas interfere with each other and coverage becomes unpredictable, while cable runs and mounting points multiply for no benefit.
The LA-81 combines up to four transmitter outputs onto one antenna feed. Where more channels are required, the 6-way combiner covers up to six. Antenna cable is ordered separately: RG-58 for shorter runs, low-loss RG-8 where the antenna is remote.
Key Features
- Four transmitter inputs — Combines up to four RF transmitter outputs onto a single antenna feed.
- Single antenna coverage — Keeps coverage defined by one antenna position rather than several interfering ones.
- Multi-channel support — Suits venues running simultaneous interpretation or audio description channels.
- BNC connector family — Matches the connector standard across the Listen stationary RF range.
Technical Specifications
| Manufacturer | Listen Technologies |
|---|---|
| Part Number | LA-81 |
| Type | RF antenna combiner |
| Inputs | 4 |
| Impedance | 50 ohm |
| Application | Multi-transmitter RF assistive listening installations |
Specifications sourced from the Listen Technologies product listing.
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