DTC Communications Inc. LB1 User Manual
DTC Communications, Inc.
Page 2 of 7
FCC RF EXPOSURE STATEMENT
When installed as directed, this equipment complies with the FCC radiation exposure limits as set forth for
both uncontrolled and controlled environments. This equipment produces a finite-time, low- power, low-
duty cycle signal that is under the limits for specific absorption rate in any deployment scenario.
FCC TYPE CERTIFICATION
This equipment complies with the FCC Part-90 requirements and has been type certified.
FCC ID: H25LB1
Introduction
The LB-1 Letter Beacon is a micropower, credit card sized transmitter that operates in the VHF band (150-
174 MHz). It is used for event monitoring and package tracking purposes by law enforcement agencies.
The beacon emits short-duration, low-power radio signals. The LB-1 reports status, event and motion
information as well as battery condition with low-duty cycle transmissions, thus greatly increasing the
unit’s battery life. The reporting tone codes may be customized by the user using a software package. The
LB-1 is also capable of transmitting unmodulated tracking pulses for pseudo-doppler type tracking
receivers such as the DTC TRAK/R-2000.
The device may also be programmed to begin or cease transmissions on a schedule based on a real-time
clock. Both the batteries and the antenna are internal to the unit.
The LB-1 is a self-contained beacon featuring:
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DTMF tone generation
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Multi-tone generation
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Tracking Pulse capability
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Breakwire capability
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Standby capability
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User programmability
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Delayed operation mode
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Scheduled operation mode
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Reliable battery contacts with no battery compartment door to lose
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Unique “tape-down” contacts for fine wires (Breakwire and Standby)
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Operator interface through an on-board button and LED
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Special status tones transmitted to indicate low battery and motion
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On-board motion detection
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Integrated, optimized antenna