DTC Communications Inc. LB1 User Manual

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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: 
• 
DTMF tone generation  
• 
Multi-tone generation 
• 
Tracking Pulse capability 
• 
Breakwire capability 
• 
Standby capability 
• 
User programmability 
• 
Delayed operation mode 
• 
Scheduled operation mode 
• 
Reliable battery contacts with no battery compartment door to lose 
• 
Unique “tape-down” contacts for fine wires (Breakwire and Standby) 
• 
Operator interface through an on-board button and LED 
• 
Special status tones transmitted to indicate low battery and motion 
• 
On-board motion detection 
• 
Integrated, optimized antenna