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LR-200-072

Includes:
LR-200-072 Standard 3-Channel FM Receiver (72 MHz)
Quick Reference Card

architectural specifications
The FM receiver shall be capable of receiving on three wide band channels. The receiver shall have an SNR of 62 dB or greater. The device shall have an audio frequency response of 50 Hz to 15 KHz, ± 3 dB at 72 MHz. The device shall incorporate a stereo headset jack that allows the user to plug in either a mono or stereo earphone(s). The unit shall operate with (2) AA batteries. The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The device shall have a switchable option for the use of (2) alkaline or (2) NiMH batteries. The Listen LR-200-072 is specified.

	Specification	LR-200-072
RF	RF Channel Range	(A) 72.100, (E) 72.900, (H) 75.900
	Number of Channels	3 wide band
	Sensitivity	.6uV typical, 1 uV maximum for 12 dB sinad
	Frequency Accuracy	± .005% stability 32 to 122 ºF (0 to 50 ºC)
	Antenna	Uses earphone cable
	Squelch	None
	Compliance	FCC Part 15, Industry Canada, RoHS
Audio	-- All system specifications are wireless end-to-end
	System Frequency Response	50 Hz - 15 kHz (±3 dB)
	System Signal-to-Noise Ratio (A-Weighted)	62 dB
	System Distortion	<2% total harmonic distortion (THD) at 80% deviation
	Output	3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm
Controls	User Controls	ON/OFF, volume
	Set-up Controls (battery compartment)	Alkaline/NiMH batteries, channel swtich
	Programming	None
Indicators	LED	Red, illuminated when unit is on or to indicate charging, flashes when batteries are low.
Indicators	LCD Display	None
Power	Battery Type	Two (2) AA batteries, alkaline or NiMH
	Battery Life (Listen batteries)	120 hours alkaline (LA-361), 75 hours NiMH rechargeable (LA-362)
	Battery Charging (NIMH only)	Fully automatic, 10-12 hours under normal use
	Power Supply	I/P 120VAC; O/P 7.5VDC 250 mA, drop in contact points for use with charging cases, power supply not included (LA-202)
	Power Supply Connector	2.3mm OD by 0.7mm ID, barrel type connector 7.5 VDC, center positive <250mA, drop in contact points for use with Listen charging cases
	Power Supply Compliance	RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant
Physical	Dimensions (H x W x D)	4.25 x 2.75 x 1.50 in. (10.8 x 7.0 x 3.8 cm)
	Color	Dark grey with white silk screening and dark lens
	Unit Weight	3.1 oz (88 g)
	Unit Weight with batteries	5.2 oz (147 g)
	Shipping Weight	1 lb (0.5 kg)
	Door	Manually lockable, channel select behind the door
Environmental	Temperature - Operation	-10 ºC (14 ºF) to +40 ºC (104 ºF)
	Temperature - Storage	-20 ºC (-4 ºF) to +50 ºC (122 ºF)
	Humidity	0 to 95% relative humidity, non-condensing

1. An earphone jack (3.5 mm) accepts either mono or stereo headsets. Receiver antenna is built into the earphone cord, eliminating additional wires while maximizing receiver effectiveness.

2. Multifunction LED indicates power on. Flashes when batteries are low.

3. Easy ON/OFF volume control.

4. Uses two (2) AA batteries. Selectable to use either alkaline or Listen’s advanced NiMH Rechargeable AA Batteries.

5. Channel Select Switch allows choice between 3 channels (A, E, H).

6. Manually lockable battery compartment door.

7. Charging plug port.

8. Exclusive belt clip “loop” prevents unit from slipping off belt or strap.

9. Contact points for Listen’s drop in charging cases.