Listen LT-82 - Frequently Asked Questions

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Frequently Asked Questions
Q
How many radiators can an LT-82 power?
A
Up to two radiators can be powered using an LT-82. You must use an external power
supply (LA-205) for more radiators.
Frequently Asked Questions
Q
How many radiators can an LA-205 power?
A
Up to two radiators can be powered using an LA-205 external power supply.
Q
What do the LEDs on the front of my radiator tell me?
A
Refer to page 37 for detailed information about the LED indicators on the front of the LA-140 Radiator.
Q
Can I turn o the LEDs on the front of my radiator and still have it function normally.
A
Yes, you can disable the LED indicators if you desire to do so. Turn SW1 on the rear of the radiator to the
OFF position. See page 36 for more information.
Q
What is the life-span of the Listen LA-140 Radiator?
A
The radiators will be degraded to 50% eciency at approximately 10,000 operating hours. The footprint
specication provided by Listen Technologies has accounted for 40% of this degradation which occurs
at approximately 8,000 hours. This is equivalent to three years of operating at eight hours per day.
Q
If one of the LEDs on a radiator fails, how many LEDs will stop working?
A
If a diode goes out, the radiator has been designed to minimize the impact on the rest of the LEDs.
Worse case, 12 diodes out of 84 stop working.
Q
If I want to mount two radiators side by side can I do this and what part to I need to order?
A
Yes this is possible and often times it is recommended. You will need to order Listen Technologies
part number LA-342. See page 57 for more information about the dual mounting bracket.
Q
I am using Non-Listen receivers with Listen LT-82 Transmitters,how do I know which channel to use?
A
Please see the LT-82 specications page to determine the operating frequencies on page 23.
Q
I am using a non-Listen transmitter with a Listen LA-140 radiator, what do I need to know?
A
It is important that SW2 on the rear of the radiator is switched to “compatibility mode.” This will allow
the radiator to work with other manufacturers transmitters. See page 37 for more information.
Q
I want to occasionally turn o one or more channels in a multi-channel system but I don’t want to have to
rewire the system every time I do this. Is this possible?
A
Yes. The transmitter should be placed on channel “--”. This does not add a channel to the
system in your daisy-chain, however allows other channels to pass through. See page 28 for
more information.