Listen lt-800 - Listen Portable Receiver Specifications; LR-300, LR-400, LR-500 Technical Details

LISTEN TECHNOLOGIES CORPORATION +1.801.233.8992 1.800.330.0891 Fax: +1.801.233.8995
Internet: www.ListenTech.com All specifications subject to change without notice.
30
RF Frequency Range:
72MHz: 72.1 - 75.9MHz
Sensitivity:
.6uV typical, 1uV maximum for 12dB SINAD
Signal to Noise Ratio*:
80dB with SQ enabled, 60dB (72MHz) with SQ
disabled
Frequency Response*:
50 to 15KHz +/-3dB
Distortion*:
<2% at 80% deviation
Squelch:
On loss of RF signal
Antenna:
Uses earphone cable
Dimensions:
3.0 in (7.6cm) wide by 1.0 in (2.5cm) deep by 5.0
in (13cm) height
Weight:
<1.0 lb (0.45g) with batteries
Belt Clip:
Built into back of unit
Door:
Screwdriver lockable
Power:
Two AA batteries, high capacity alkaline or NiMH
rechargeable; external power connector 7.5 VDC,
tip positive, <300mA
Battery Life:
40 hours with high capacity alkaline,
20 hours with rechargeable NiMH
Earphone:
Many options available, see Listen website for
details
Available Channels:
72MHz only: 17 wide band
Controls:
SEEK button, SQ switch and NiMH/Alkaline battery
selection switch behind the door
* Wireless Transmission System Specifications: End-to-end.
RF Frequency Range:
72MHz: 72.05 - 75.95MHz
216MHz: 216.025 - 216.975 MHz
Sensitivity:
.6uV typical, 1uV maximum for 12dB SINAD
Signal to Noise Ratio*:
80dB with SQ enabled, 60dB (72MHz), 50dB
(216MHz) with SQ disabled
Frequency Response*:
50 to 15KHz +/-3dB (10 KHz at 216 MHz)
Distortion*:
<2% at 80% deviation
Squelch:
On loss of RF signal
Antenna:
Uses earphone cable
Dimensions:
3.0 in (7.6cm) wide by 1.0 in (2.5cm) deep by 5.0
in (13cm) height
Weight:
<1.0 lb (0.45g) with batteries
Belt Clip:
Built into back of unit
Door:
Screwdriver lockable
Power:
Two AA batteries, high capacity alkaline or NiMH
rechargeable; external power connector 7.5 VDC,
tip positive, <300mA
Battery Life:
40 hours with high capacity alkaline,
20 hours with rechargeable NiMH
Earphone:
Many options available, see Listen website for
details
Available Channels:
72MHz: 17 wide band, 40 narrow band
216MHz: 19 wide band, 38 narrow band
Controls:
SEEK, Channel UP and DOWN buttons, SQ switch
and NiMH/Alkaline battery selection switch behind
the door
* Wireless Transmission System Specifications: End-to-end.
RF Frequency Range:
72MHz: 72.05 - 75.95MHz
216MHz: 216.025 - 216.975 MHz
Sensitivity:
.6uV typical, 1uV maximum for 12dB SINAD
Signal to Noise Ratio*:
80dB with SQ enabled, 60dB (72MHz), 50dB
(216MHz) with SQ disabled
Frequency Response*:
50 to 15KHz +/-3dB (10 KHz at 216 MHz)
Distortion*:
<2% at 80% deviation
Squelch:
On loss of RF signal
Antenna:
Uses earphone cable
Dimensions:
3.0 in (7.6cm) wide by 1.0 in (2.5cm) deep by 5.0
in (13cm) height
Weight:
<1.0 lb (0.45g) with batteries
Belt Clip:
Built into back of unit
Door:
Screwdriver lockable
Power:
Two AA batteries, high capacity alkaline or NiMH
rechargeable; external power connector 7.5 VDC,
tip positive, <300mA
Battery Life:
40 hours with high capacity alkaline,
20 hours with rechargeable NiMH
Earphone:
Many options available, see Listen website for
details
Programmability:
Allows only programmed channels to be active;
also offers adjustable squelch
Available Channels:
72MHz: 17 wide band, 40 narrow band
216MHz: 19 wide band, 38 narrow band
Controls:
SEEK, Channel UP and DOWN available through the
door; SQ switch and NiMH/Alkaline battery
selection switch behind the door
* Wireless Transmission System Specifications: End-to-end.
LR-300 Specifications LR-400 Specifications LR-500 Specifications
Listen Portable Receiver Specifications