Listen Technologies LT-803-072, LA-161 LR-200-072Specifications, Architectural Specification, Audio

LR-LT200-800-072

LR-200-072 Specifications

Architectural Specification

The FM receiver shall be capable of receiving on three wide band channels. The receiver shall have a 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.

	Specifications	LR-200-072
	RF Channel Range	(A) 72.100, (E) 72.900, (H) 75.900
	Number of Channels	3 wide band
	Sensitivity	.6 uV typical, 1 uV maximum for 12 dB sinad
RF	Frequency Accuracy	+/-.005% stability 32˚ to 122˚F (0˚ - 50˚C)
	Antenna	Uses earphone cable
	Squelch	None
	Compliance	FCC Part 15, Industry Canada, RoHS
		** All system specifications are wireless end-to-end
	System Frequency Response	50Hz - 15kHz (+/-3dB)
Audio	System Signal to Noise Ratio	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 Ohms
	User Controls	ON/OFF, volume
Controls	Set up Controls	Alkaline/NiMH batteries, channel switch
	(battery compartment)
	Programming	None
Indicators	LED	Red, illuminated when unit is on or to indicate charging, flashes when batteries are low.
	LCD Display	None
	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	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	2.3 mm OD by 0.7 mm ID, barrel type connector, 7.5 VDC, center positive <250 mA.
		Drop in contact points for use with Listen charging cases.
	Power Supply Compliance	RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant
	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
Physical	Unit Weight	3.1 oz. (88 g)
	Unit Weight with batteries	5.2 oz. (147 g)
	Shipping Weight	5.8 oz. (164 g)
	Door	Manually lockable. SEEK behind the door.
	Temperature - Operation	14˚ to 104˚F - (-10˚ to 40˚C)
Environmental	Temperature - Storage	-4˚ to 122˚F - (-20˚ to 50˚C)
	Humidity	0 to 95% relative humidity, non-condensing
		** Specifications are subject to change without notification

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