Technical data

LR-400 Page 5
Listen Technologies Corporation All rights reserved 91707
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
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RF
RF Frequency Range 72.025 - 75.950 MHz 216.0125 - 216.9875 MHz
Number of Channels 17 wide band, 40 narrow band 19 wide band, 38 narrow band
Sensitivity .6 uV typical, 1 uV maximum for 12dB sinad
Frequency Accuracy VWDELOLW\ÝWRÝ)ÝÝ&
Antenna Uses earphone cable
Squelch Programmable in 20 steps, automatic on loss of RF signal
Compliance FCC Part 15, Industry Canada FCC Part 90, Industry Canada
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Audio
System Frequency Response 50Hz - 15kHz (+/-3db) 72 Mhz 50Hz - 10kHz (+/-3db) 216 MHz
System Signal to Noise Ratio SQ enabled: 80dB; SQ disabled 60dB
System Distortion <2% total harmonic distortion (THD) at 80% deviation
Output
3.5 mm connectors, unbalanced, 0dBu nominal output level, 16 mW maximum,
impedance 32 Ohms
Controls
User Controls Volume, channel UP/DOWN, SEEK
Set up Controls
(battery compartment)
Alkaline/NiMH batteries, SQ enable/disable
Programming Channel lock, squelch
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
Power
Battery Type Two AA batteries, alkaline or NiMH
Battery Life (Listen Batteries) 30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
Battery Charging (NiMH only) Fully automatic, 13 hours
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
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. (111 g)
Unit Weight with batteries 5.8 oz. (164.4 g)
Shipping Weight 1.0 lb. (0.45 kg)
Door Manually lockable. SEEK behind the door.
Environmental
Temperature - Operation ÝWRÝ)ÝWRÝ&
Temperature - Storage ÝWRÝ)ÝWRÝ&
Humidity 0 to 95% relative humidity, non-condensing
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