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Specification |
LR-400-072 |
LR-400-216 |
RF |
RF Frequency Range |
72.025 - 75.950 MHz |
216.025 - 216.975 MHz |
Number of Channels |
57 (17 wide, 40 narrow) |
57 (19 wide, 38 narrow) |
Sensitivity |
.6uV typical, 1 uV maximum for 12dB SINAD
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Frequency Accuracy |
± .005% stability 0° to 50°C (32° to 122° F)
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Antenna |
Uses earphone cable
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Antenna Connector |
3.5mm connector
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Squelch |
Programmable in 20 steps
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Compliance |
FCC Part 15, Industry Canada
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Audio |
** All system specifications are wireless end-to-end |
System Frequency Response |
63Hz - 15kHz (±3dB) |
63Hz - 10kHz (±3dB) |
System Signal to Noise Ratio
(A-weighted) |
SQ enabled: 80dB; SQ disabled 60dB |
SQ enabled: 80dB; SQ disabled 50dB |
System Distortion |
<2% total harmonic distortion (THD) at 80% deviation
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Output |
3.5mm connectors, unbalanced, 0dBu nominal output level,
16mW maximum, impedance 32 Ohms
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Controls |
Set Up Controls |
Alkaline/NiMH batteries, SQ enable/disable and programmable squelch setting
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User Controls |
Volume, channel UP/DOWN, SEEK.
(All controls except volume are electronically lockable, and are behind the door).
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Programming |
Squelch can be adjusted for sensitivity and signal capture control. Channel selection can be locked by holding the SEEK button for 5 seconds. Unit cannot be programmed to seek only used channels, however, it is capable of entering squelch mode.
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Indicators |
LCD Display |
Indicates channel, RF signal strength, lock status, squelch,
battery power level and channel programming.
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LED |
Red, illuminates when unit is on. Flashes when batteries are low. Flashes when charging. Flashes when locked and user attempts to seek to another channel.
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Power |
Battery Type |
Two AA batteries, alkaline or NiMH
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Battery Life (Listen batteries) |
30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)
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Battery Charging (NiMH only) |
Fully automatic, 14 hours
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Power Supply Connector |
2.3mm OD by 0.7mm ID, barrel type connector. 7.5VDC, center positive <250mA. Drop in contact points for use with Listen charging cases.
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Compliance |
UL Listed
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Physical |
Dimensions |
3.0 in x 1.0 in x 5 in WxDxH (7.6cm x 2.5cm x 13.cm)
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Unit Weight |
3.9oz (111g)
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Unit Weight with batteries |
5.8 oz (164.4g)
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Shipping Weight |
1.0 lbs (453.6kg)
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Door |
Manually lockable. UP, DOWN and SEEK through door, other
controls behind door (see Controls above).
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Environmental |
Temperature - Operation |
-10° to 40°C (14° to 104° F)
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Temperature - Storage |
-20° to 50°C (-4° to 122° F)
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Humidity |
0 to 95% relative humidity, non-condensing
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