LR-500 Page 5
Listen Technologies Corporation All rights reserved 92007
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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LR-500-072
LR-500-216
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
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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
50 Hz - 15 kHz (+/-3db) 72 MHz
50 - 10 kHz (+/-3db) 216 MHz
System Signal to Noise Ratio
(A-Weighted)
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
Channel up/down, SEEK, volume
Set up Controls
(battery compartment)
Alkaline/NiMH batteries, SQ enable/disable
Programming
Channel lock, squelch, Channel Lock Out
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, Programming
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, 14 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/carrying 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. (13.0 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 lb. (0.45 kg)
Door
Manually lockable. UP, DOWN, and SEEK through door, other controls behind door
(see Controls above)
Environmental
Temperature - Operation
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Temperature - Storage
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Humidity
0 to 95% relative humidity, non-condensing
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