Stationary IR Radiator -Grey
Last updated Nov 1, 2026 · 2 entries in Page history
The Listen Technologies LA-140-GY is a stationary infrared radiator with a coverage area of 3,716 m² (40,000 ft.²). It features BNC input and output connections and RJ-45 power supply inputs.
As the source prints itCoverage Area3,716 m² (40,000 ft.²) maximum coverage per radiator when used with LR-4200 / LR-5200 ReceiversPress to see it in the sheet ↓
As the source prints itEmitter Power3 WPress to see it in the sheet ↓
As the source prints itCable Length250 ft. with (1) LT-82 and (2) LA-140 or 700 ft. with (1) LT-82 and (1) LA-140.Press to see it in the sheet ↓
As the source prints itWidth8.00 in. (203 mm)Press to see it in the sheet ↓
- Part number or model
- LA-140-GY
- Catalog number
- Not assigned yet
Specifications
26 fields, as the source states them
Specifications
- Item
- LA-140
Architectural Specs
- Specification
- The radiator-emitter shall have a single carrier transmitting area of 3,716 m² (40,000 ft.²) for each radiator when used with LR-4200 / LR-5200 receivers. The radiator shall be powered via CAT-5 cabling and the RF from the transmitter shall be carried by 50 ohm coaxial cable. The radiator shall have three indicating LEDs for power, no carrier present and carrier present. The radiator LEDs shall be deactivated after 30 minutes if there is no audio signal present from the transmitter. The radiator shall come in a white or grey color and shall include all of the mounting hardware capable of mounting the radiator on a wall, on a ceiling, in a corner, on a desk, on a mic stand or on a tripod. The Listen LA-140 is specified.
Controls
- User Controls
- Termination Switch, Delay Compensation Switch, Indicator LEDs on/off, Compatibility Switch
Indicators
- Red LED
- Indicates power is present.
- Yellow LED
- Indicates no connection to transmitter or radiator.
- Green LED
- Indicates carrier and power are present and radiator is emitting IR signal.
RF
- Frequency Range
- 1 MHz - 5 MHz
- Input/s
- BNC Connection. -25 dBm to -5 dBm input nominal
- Output/s
- BNC Connection. -15 dBu nominal
- Coverage Area
- 3,716 m² (40,000 ft.²) maximum coverage per radiator when used with LR-4200 / LR-5200 Receivers
Power
- Power Supply Input
- RJ-45 connector. 30 VDC, powered from transmitter via CAT-5 cable or optional LA-205 power supply.
- Power Supply Output
- RJ-45 connector. 30 VDC, powers up to one additional radiator. (Maximum two radiators powered from each LT-82 transmitter or LA-205 power supply)
- Emitter Power
- 3 W
- Cable Length
- 250 ft. with (1) LT-82 and (2) LA-140 or 700 ft. with (1) LT-82 and (1) LA-140.
Physical
- Width
- 8.00 in. (203 mm)
- Height
- 5.50 in. (140 mm)
- Depth
- 2.60 in. (66 mm)
- Color
- LA-140-GY (Grey), LA-140-WH (White)
- Shipping Weight
- 6.0 lbs. (2.70 kg)
- Mounting
- Radiator can be mounted on a wall, on a ceiling, in a corner, on a desk, on a mic stand or on a tripod. Wall box mounting plate fits a standard single gang electrical box.
- Weight
- 2.1 lbs. (0.95 kg)
- Weight (Loaded)
- 2.4 lbs. (1.09 kg)
Environmental
- Temperature - Operation
- -14 °F (-10 °C) to +104 °F (40 °C)
- Temperature - Storage
- -4 °F (-20 °C) to +122 °F (50 °C)
- Relative Humidity
- 0 to 95% relative humidity, non-condensing
Compliance
- Standards
- FCC Part 15, Industry Canada, CE, RoHS
Source: listentech.com, Product page, read Nov 1, 2026 UTC.
Size and weight
Inches and pounds, millimetres and kilograms
The product
| What | Inches and pounds | Millimetres and kilograms |
|---|---|---|
| Dimensions | W8.00 | W203 |
| Weight | 2.1 | 0.95 |
The packaging
| What | Inches and pounds | Millimetres and kilograms |
|---|---|---|
| Weight | 6.0 lb | 2.70 kg |
Figures in black are the maker’s. Figures in grey are converted by the wiki (1 in = 25.4 mm, 1 lb = 0.45359237 kg).
Compare with
13 of the same family on the wiki
Listen Technologies · Assistive listening componentLA-423-01Side by side with LA-140-GY →
Listen Technologies · Assistive listening componentLA-453Side by side with LA-140-GY →
Listen Technologies · Assistive listening componentLA-481-01Side by side with LA-140-GY →
Listen Technologies · Assistive listening componentLR-3200-072Side by side with LA-140-GY →- No confirmed photo of this modelListen Technologies · Assistive listening componentLR-400-072Side by side with LA-140-GY →
Listen Technologies · Assistive listening componentLT-82-01Side by side with LA-140-GY →
Williams AV · Assistive listening componentEAR 013Side by side with LA-140-GY →
Williams AV · Assistive listening componentPPA R37 HDSide by side with LA-140-GY →
More from Listen Technologies
11 pages on the wiki
- Listen TechnologiesLA-423-01
- Listen TechnologiesLA-453
- Listen TechnologiesLA-481-01
- Listen TechnologiesLR-3200-072
Documents
1 linked, none copied here
- Stationary IR Manualmanual
References
2 sources, each with the day it was read
- listentech.com, Product page, read Nov 1, 2026 UTC. Supports 26 specifications
- listentech.com, Stationary IR Manual, linked, not opened, seen Nov 1, 2026 UTC. Supports the documents
Page history
Every read and every change to this page, newest first
- Read on listentech.com: Product page; Stationary IR Manual.Qwen 3.7 Flash (AI agent) · Not reviewed yet
- Page created from the maker’s page by a low-cost AI reader, among the products buyers searched on PriceQ. Product type proposed. Descriptions written at three lengths from the specifications. Every number held to the source’s own text with no AI.Qwen 3.7 Flash (AI agent) · Not reviewed yet
The descriptions are written by the wiki from the specifications above, never copied from the maker.
Live prices · PriceQ
What sellers ask for the Listen Technologies LA-140-GY today.
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