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LR-500 Page 1

Listen Technologies Corporation All rights reserved 92007

Listen Technologies Corporation • 14912 Heritagecrest Way • Bluffdale • Utah 84065-4818 U.S.A. 

+1.801.233.8992 • +1.800.330.0891

North America 

• +1.801.233.8995

Fax

One of Listen’s most sophisticated receivers, the LR-500 

Programmable Display Receiver offers the signature Look&ListenTM 

LCD Display that shows programming status, channel, lock, battery 

level, and RF signal strength. Channel selector buttons are easily 

accessible on the front of the unit. It has channel SEEK capability and 

is compatible with mono or stereo headsets. It takes AA batteries 

(alkaline or NiMH rechargeable). SmartChargeTM capabilities 

prevent overcharging. It’s easy to use, easy to program.

LR-500 Portable Programmable 
FM Display Receiver

•Superior Audio Quality – 80 dB (70 dB with 863 MHz) 
  signal-to-noise ratio, setting the industry’s sound quality standard.

•A choice between 57 channels (17 channels with 863 MHz),
  complete antenna and accessory options make Listen products 
  ideal for a wide range of applications.

•Programmability – Unneeded channels can be locked so this 
  receiver will access only one or more channels of your choice.

•100 % Digital – Listen receivers are digitally-tuned so transmission 
  won’t drift; assurance that when you select a channel, it stays 
  on the channel.

•Uses standard alkaline or NiMH batteries.

•Built in SmartCharge™ won’t allow batteries to overcharge. 
  Charging circuitry is conveniently built into Listen’s receivers; 
  never worry about unplugging a transformer at a certain time.

•Transformer charging plug or for the ultimate convenience 
  drop in charging contacts.

•Limited Lifetime Warranty with hassle-free support.

LR-500-072/216

The FM receiver shall be capable of receiving on 57 wide and 

narrow band channels.  The receiver shall have a SNR of 80 dB or 

greater. The receiver shall be programmable to electronically lock 

out unneeded channels. The receiver shall be capable of seeking 

channels. The device shall have a squelch. The device shall have 

an audio frequency response of 50 Hz to 15 KHz, ± 3 dB at 72 MHz 

and 50 - 10 kHz (±3dB) at 216 MHz. The device shall incorporate a 

stereo headset jack that allows the user to plug in either a mono 

or stereo headset and listen to audio normally. The device shall 

incorporate an LCD display that indicates channel, battery level, 

low battery, battery charging, RF signal strength and channel lock 

status. The receiver shall incorporate automatic battery charging 

circuitry for recharging of NiMH batteries. The device shall have a 

switch able option for the use of (2) alkaline or (2) NiMH batteries. 

7KH/LVWHQ/5RU/5LVVSHFLÀHG

LR-500-863

The FM receiver shall be capable of receiving on 17 wide band 

channels with a SNR of 70dB or greater. The receiver shall be 

programmable to electronically lock out unneeded channels. The 

receiver shall be capable of seeking channels. The device shall 

be able to be locked on a single channel. The device shall have 

an adjustable squelch. The device shall have an audio frequency 

response of 50 Hz to 15 KHz, ±3 dB. The device will incorporate a 

stereo headset jack that allows the user to plug in either a mono or 

stereo headset. The device shall incorporate an LCD display that 

indicates channel, battery level, low battery, battery 

charging, and RF signal strength. The receiver shall be able to 

function in both DX and Local mode. The unit shall operate off of 

2 AA batteries. The receiver shall incorporate automatic battery 

charging circuitry for recharging of NiMH batteries. The Listen 

/5LVVSHFLÀHG

LA-361 - High Capacity AA Alkaline Batteries (2)

LA-362 - Rechargeable AA NiMH Batteries (2)

Highlights

$UFKLWHFWXUDO6SHFLÀFDWLRQ

LR-500-072

LR-500-216

LR-500-863

&RQÀJXUDWLRQ

Requires:

LR-500 Portable Programmable Display FM Receiver
Owner’s manual (72 MHz & 216 MHz)
Quick Reference Card (863 MHz)
Limited Lifetime Warranty Program Card (863 MHz)
FM System Design Guide and Manual Card (863 

MHz)

,QFOXGHV

LT-800 Stationary FM Transmitter 

LT-700 Portable FM Display Transmitter

LA-161 Single Ear Bud 

LA-162 Stereo Ear Bud 

LA-164 Ear Speaker 

LA-165 Stereo Headphones 

LA-166 Neck Loop 

LA-170 Behind-the-Head Stereo Headphones

8VHG:LWK

Summary of Contents for LR-500

Page 1: ...e a squelch The device shall have an audio frequency response of 50 Hz to 15 KHz 3 dB at 72 MHz and 50 10 kHz 3dB at 216 MHz The device shall incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset and listen to audio normally The device shall incorporate an LCD display that indicates channel battery level low battery battery charging RF signal strength an...

Page 2: ...W DYDLODEOH EURDGFDVW OVR XVHG WR DGMXVW VTXHOFK LQ VWHSV ZKLFK PXWHV DXGLR RQ ORVV RI RF signal 6 When enabled SQ provides highest audio quality available in its product category SQ can be disabled for compatibility with other assistive listening equipment 7 Uses two AA batteries Selectable to use either alkaline or Listen s advanced NiMH Rechargeable AA DWWHULHV 6PDUW KDUJH LQFRUSRUDWHG LQWR UHF...

Page 3: ...D Display shows channel selection channel lock and battery level 6HHNV WR ÀQG EHVW DYDLODEOH EURDGFDVW OVR XVHG WR DGMXVWDEOH VTXHOFK LQ VWHSV PXWHV DXGLR RQ ORVV RI 5 signal 6 Uses two AA batteries Selectable to use either alkaline or Listen s advanced NiMH rechargeable AA batteries SmartCharge incorporated into receiver makes sure each unit receives the most EHQHÀFLDO FKDUJH 7 Digitally tuned wi...

Page 4: ...id Euro KDUJLQJ DUU LQJ DVHV LA 311 01 16 Unit Portable FM Product Charging Carrying Case North America LA 311 02 16 Unit Portable FM Product Charging Carrying Case Asia UK LA 311 03 16 Unit Portable FM Product Charging Carrying Case Euro LA 317 01 4 Unit Portable FM Product Charging Carrying Case North America LA 317 02 4 Unit Portable FM Product Charging Carrying Case Asia UK LA 317 03 4 Unit Po...

Page 5: ...e disable Programming Channel lock squelch Channel Lock Out Indicators LED Red illuminated when unit is on Flashes when batteries are low or to indicate charging Flashes when locked and SEEK is pushed Display Channel Designation lock status signal strength indication Programming Power Battery Type Two AA batteries alkaline or NiMH Battery Life Listen Batteries 30 hours alkaline LA 361 15 hours NiM...

Page 6: ...or Dark Grey with white silk screening Unit Weight 3 9 oz 111 g Unit Weight with batteries 5 8 oz 164 g Shipping Weight 1 0 lbs 0 45 kg Door Manually lockable Up down and power buttons through door Other controls behind door see controls Environmental Temperature Operation 14Ý 104Ý 10Ý Ý Temperature Storage 4 122Ý 20Ý 50Ý Humidity 0 to 95 Relative Humidity non condensing 6SHFLÀFDWLRQV LR 500 863 R...

Page 7: ...ls you need Q How many receivers can I have in a system A As many as you need the number is endless UHTXHQWO VNHG 4XHVWLRQV Q What is the function of SQ A To reduce noise of its systems Listen now offers a noise reduction technology called ListenSQ on 72 MHz and 216 MHz only Both the transmitter and receiver must have SQ on to achieve the desired results If you are planning to use this product wit...

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