LR-500 Portable Programmable Display FM Receiver (863 MHz)

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.

Please Note: Does not include batteries or earphone/headphone

architectural specifications
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 LR-500-863 is specified.

	Specification	LR-500-863
RF	RF Frequency Range	863.050 - 864.950 MHz
	Number of Channels	17 Wideband
	Sensitivity	.6uV typical, 1 uV maximum for 12 dB sinad
	Frequency Accuracy	� .005% stability 32 to 122� (0 to 50�C)
	Antenna	Integrated External Antenna
	Squelch	Programmable in 20 steps, automatic on loss of RF signal
	Compliance	CE, ETSI, RoHS
Audio	** All system specifications are wireless end-to-end
	System Frequency Response	50Hz - 15kHz (+/-3db)
	System Signal to Noise Ratio	70db (A-Weighted)
	System Distortion	<2% total harmonic distortion (THD) at 80% deviation
	Output	3.5 mm connector, unbalanced, 0dBu nominal output level, 16 mW maximum, impedance 32 Ohms
Controls	User Controls	Channel up/down, SEEK, volume
	Set-up Controls (battery compartment)	Alkaline/NiMH battery switch
	Programming	Channel Lock Out, Channel Lock, DX/Local, squelch
Indicators	LED	Red, illuminated when unit is on.Flashes when batteries are low, or charging.Flashes when locked and SEEK is pushed.
	LCD Display	Channel Designation, lock status, signal strength indication, programming
Power	Battery Type	Type: 2 AA batteries, alkaline or NiMH
	Battery Life (Listen batteries)	20 hours alkaline (LA-361), 10 hours NiMH rechargeable (LA-362)
	Battery Charging (NiMH only)	Fully Automatic, 13 hours maximum
	Power Supply (LA-208-03)	7.5VDC, center positive 300mA. Drop in contact points for use with charging cases. Power supply not included (LA-208-03)
	Power Supply Connector	2.3 mm OD by .7mm ID, barrel type
	Power Supply Compliance	RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant
Physical	Dimensions (H x W x D)	5.0 x 3.0 x 1.0 in (13 x 7.6 x 2.5 cm)
	Color	Dark Grey with white silk screening
	Unit Weight	3.9 oz (111g)
	Unit Weight with batteries	5.8 oz (164g)
	Shipping Weight	1.0 lbs. (0.45kg)
	Door	Manually Lockable. Up, down, and power buttons through door. Other controls behind door (see controls)
Environmental	Temperature - Operation	-10C (14F) to +40C (104F)
	Temperature - Storage	-20C (-4F) to +50C (122F)
	Humidity	0 to 95% Relative Humidity, non condensing
	Specifications are subject to change without notification

FAQs


Q. What is the difference between the LR-400 and the LR-500?
A. The LR-500 gives the user an opportunity to lockout unused channels.

Q. Can the LR-500 be used with multiple transmitters?
A. Yes. We recommend the LR-500 for use with multiple transmitters. The LR-500 is programmable and can be set to just those channels you need.

Q. How many channels can I program into the LR-500?
A. 1 to 57 (17 channels with 863 MHz). The receiver has 57 (17 channels with 863 MHz) channels and you can program it to have just the channels you want to access. It can be a two channel receiver, a 12 channel receiver, or keep all channels.

Q. How many receivers can I have in a system?
A. As many as you need, the number is endless.

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 with older Listen systems or equipment not manufactured by Listen, you should disable SQ.

Q. What is the warranty of Listen receivers?
A. Limited lifetime warranty. The following cases will void the warranty:
� Misuse, dropping, or any other noticeable cosmetic damage
� Charging alkaline batteries instead of NiMH
� Overheating the charging process by closing the lid on the charging case

Q. How long do the batteries last on the LR-500 receiver?
A. Alkaline batteries last 30 hours. NiMH rechargeable batteries last 15 hours (72 MHz and 216 MHz). With 863 MHz, Alkaline batteries last 20 hours and NiMH rechargeable batteries last 10 hours.

LR-500 Datasheet
Portable FM Brochure

� LR-500 Portable Programmable Display FM Receiver
� Quick Reference Card (863 MHz)
� Limited Lifetime Warranty Program Card (863 MHz)
� FM System Design Guide and Manual Card (863 MHz)

Please Note: Does not include batteries or earphone/headphone

� 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.