Technical data

LR-400 Page 6
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
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, battery life
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)
7.5VDC, center positive 300mA. Drop in contact points for use with
charging cases. Power supply not included (LA-208).
Power Supply Connector 2.3 mm OD by .7 mm 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 (13.0 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 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Ý)-10Ý - 40Ý&
Temperature - Storage -4ÝÝ)-20Ý - 50Ý&
Humidity 0 to 95% Relative Humidity, non condensing
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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 VWDELOLW\WRÝÝ&
Antenna Integrated External Antenna
Squelch Programmable in 20 step, automatic on loss of RF signal
Compliance CE, ETSI, RoHS
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Audio
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)
NiMH/Alkaline battery switch
Programming Channel Lock, DX/Local, squelch
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