User Manual

Covert Surveillance System
Overview
What is spread spectrum?
What differentiates the ATS System?
General characteristics
Characteristics, capabilities, use and maintenance
Model 1250 Transmitter and ancillary equipment
Model 1245 Monitor System
Model 1225 Hand Held Transmitter
Operational Scenarios
General care, maintenance and storage
Other devices and equipment
Questions and answers
What is Spread Spectrum?
Generally a wideband signal
Bandwidth much wider than message
Low Probability of Interception (LPI)
Low Probability of Detection (LPD)
What Differentiates the ATS System?
Bandwidth and chip rate is much greater
virtually non-detectable
Nearly instantaneous synchronization
No lost words or syllables
More robust performance in multi-path environment i.e buildings,
city, etc.
High quality audio
Rated power output over life of battery
No sloping power output
No clipping
General Characteristics
Voice privacy
Digital system
High quality audio - 56 KBps CVSD
Flat audio response
No special batteries
Terminated inputs
All equipment compatible
Relatively inexpensive
Versatile
Data is scrambled
Characteristics of the Model 1250 Transmitter
Single transmitter - multiple carriers with integral antenna
Standard batteries
Internal microphone
Capability to use externals
Microphone
On/Off switch
Antenna
Power converters
Transmits a battery low bit
Does not heat up
Model 1250 Installation Considerations
Internal microphone is very sensitive
Careful of wind conditions
Careful of clothing
External connectors should slide on easily
Face antenna away from body