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Specification |
LT-700-072 |
LT-700-216 |
| RF |
RF Frequency Range |
72.025 - 75.975 MHz |
216.025 - 216.987 MHz |
| Number of Channels |
57 (17 wide, 40 narrow) |
57 (19 wide, 38 narrow) |
| Sensitivity |
.6uV typical, 1 uV maximum for 12dB SINAD |
| Frequency Accuracy |
±.005% stability 0° to 50°C (32° to 122° F) |
| Transmitter Stability |
50 PPM |
| Transmission Range |
From 0ft to 50ft(15.2m) -150 ft (45.7m) |
| Output Power |
Less than 10mW |
Less than 100mW |
| Antenna |
Uses microphone cable |
| Antenna Connector |
3.5mm connector |
| 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 |
| Microphone Input |
Unbalanced, tip of 3.5mm connector, (55 dBu nominal,
-32dBu maximum, impedance 21 Ohms) |
| Microphone Sensitivity |
Three position switch: high, middle and low; 6dB increments |
| Line Input |
Unbalanced, ring of 3.5mm connector, (-10dB nominal input level adjustable, +4dBu maximum, impedance 10k Ohms) |
| Phantom Power |
3VDC |
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| Controls |
Set-up Controls, behind the door |
Microphone sensitivity, NiMH/alkaline battery, SQ enable/disable |
| User Controls |
Power, mute, channel UP and DOWN |
| Programming |
Unit can be programmed so that only desired channels are displayed to the user; channel selection can be locked by holding the UP or DOWN button 5 seconds. |
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| Indicators |
LED |
Red, illuminates when unit is on. Flashes when batteries are low,
or to indicate charging. Flashes 2x when muted |
| LCD Display |
Channel, lock status, programming |
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| Power |
Battery Type |
Two 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, 14 hours |
| Power Supply Connector |
2.3mm OD by 0.7mm ID, barrel type connector. 7.5VDC, center positive 300mA. Drop in contact points for use with Listen charging cases. |
| 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) |
| Unit Weight |
3.9oz (111g) |
| Unit Weight with batteries |
5.8 oz (164.4g) |
| Shipping Weight |
1.0 lbs (0.45kg) |
| Door |
Manually lockable. UP, DOWN and power through door,
other controls behind door (see Controls above) |
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| Environmental |
Temperature - Operation |
-10° to 40°C (14° to 104° F) |
| Temperature - Storage |
-20° to 50°C (-4° to 122° F) |
| Humidity |
0 to 95% relative humidity, non-condensing |
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Listen Technologies Simultaneous Interpretation Transmitter LT-700 Specifications
