User's Manual

APPLIED TECHNOLOGY SOLUTIONS, INC.
DOCUMENT: fcc1250MAN.wpd ISSUED:jan99 REVISED: (ORIGINAL) PAGE: 1
SECTION ONE
INTRODUCTION
1.0 INTRODUCTION
This document is the Operating Manual for the Series 1250 Transmitters, produced by Applied Technology
Solutions, Inc. The Series 1250 includes the Models 1252 and 1253. Functionally and mechanically, both are identical with
the exception being their transmit frequency assignment. As such, the use in this document of the terminology Series 1250,
refers to both models in the series.
The Series 1250 is part of the Voice Privacy Low Probability of Detection (VPLPD) System 1200. The System
1200 includes the Model 1245 Monitor Station and the Model 1225 Hand Held Transceiver.
The System 1200 uses spread spectrum modulation to provide secure, low probability of detection and interception
communications to the user. The transmitted voice data is scrambled with a user selected key, to provide voice privacy and
an additional level of security. The System 1200 design incorporates an ATS proprietary self synchronizing design. This
design provides nearly instantaneous receiver synchronization and provides improved performance over other spread
spectrum designs in a rapid fade, multi-path environment.
The Series 1250 Transmitter is a transmit-only device. It has been designed for concealment on the body although
the unit can be concealed on other objects. The transmit frequency channel is factory set. The Models 1252, and 1253
designate the channel assignment. In their basic physical configuration, the Series 1250 devices include an internal
microphone and are provided with connectors for antenna, power and external microphone. This configuration is referred
to as the Naked configuration. Optionally, the device can be provided with a battery holder and integral antenna. Two such
holders are currently available. The Model 1250-04 allows the use of a J battery and uses a custom antenna mounted along
the side. The J-battery supports and operating time of approximately 1 hour and 45 minutes. The Model 1250-45 Extended
Service Case permits the use of AAA batteries and includes a custom patch antenna. The AAA batteries support an
operating time of 6 ½ hours. The patch antenna provides an improved performance when compared with other available
antennas. (These configurations are referred to as the Stand Alone configuration). Additionally, the battery(ies) can be
replaced with an optional Power Converter to allow the use of DC automobile power.
1.1 SPECIFICATIONS
The specifications for the Series 1250 Body Worn Transmitters follow. Unless otherwise noted, all specifications
are at 25°C and a supply voltage of 6.0 VDC.