ATS 1225 Manuel utilisateur
A
A
T
T
S
S
MODEL 1225 TRANSCEIVER
TECHNICAL MANUAL
produced by:
APPLIED TECHNOLOGY SOLUTIONS, INC.
4200-F Technology Court
Chantilly, VA 20151
This manual contains information proprietary to Applied Technology Solutions, Inc. and may not be re-produced
without expressed permission.
A
A
T
T
S
S
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: ii
MODEL 1225 TRANSCEIVER
TECHNICAL MANUAL
produced by:
APPLIED TECHNOLOGY SOLUTIONS, INC.
4200-F Technology Court
Chantilly, VA 20151
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: iii
TABLE OF CONTENTS
SECTION TITLE PAGE
ONE INTRODUCTION...................................................................................................................................1
1.0 GENERAL...............................................................................................................................................1
1.1 SPECIFICATIONS..................................................................................................................................1
1.2 CONTROLS, INDICATORS, USER I/O...............................................................................................3
TWO OPERATION...........................................................................................................................................4
2.0 GENERAL...............................................................................................................................................4
2.1 ATS 1200 SYSTEM COMPONENTS...................................................................................................4
2.2 MODEL 1225 OPERATION..................................................................................................................4
2.2.1 Safety Considerations................................................................................................................4
2.3 EARPIECE/MICROPHONE ASSEMBLY............................................................................................5
2.4 BATTERY...............................................................................................................................................5
2.5 ANTENNA..............................................................................................................................................5
2.6 PRIVACY CODES..................................................................................................................................5
THREE THEORY OF OPERATION...................................................................................................................6
3.0 GENERAL...............................................................................................................................................6
3.1 FUNCTIONAL DESCRIPTION.............................................................................................................6
3.1.1 Audio/Digital Section................................................................................................................6
3.1.2 RF/IF Section ............................................................................................................................7
3.2 RF CHARACTERISTICS.......................................................................................................................8
FOUR MAINTENANCE....................................................................................................................................9
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: iv
4.0 TROUBLESHOOTING ..........................................................................................................................9
4.1 MAINTENANCE....................................................................................................................................9
4.2 REPAIRS .................................................................................................................................................9
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: v
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: 1
SECTION ONE
INTRODUCTION
1.0 GENERAL
This document is the Operating Manual for the Model 1225 Hand Held Transceiver produced by Applied
Technology Solutions, Inc. The Model 1225 is one component of the Voice Privacy Low Probability of Detection (VPLPD)
System 1200. Other System 1200 components include the Model 1245 Monitor System and the Series 1250 Transmitters.
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 employs 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 Model 1225 Hand Held Transceivers can be used for direct communications with other System 1200
devices.
1.1 SPECIFICATIONS
The specifications for the Model 1225 Transceiver follow. Unless otherwise noted all specifications are
at 25oC with full capacity batteries.
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: 2
RF CHARACTERISTICS
RF Channels: 2, Crystal Controlled
Normal Mode: Transmit/Receive Channel A
or B
Repeater Mode: Transmit Channel A, Receive
on Channel B
Transmit
Power Output: 900 mW
Emissions
Spurious: -55 dBc
Out Of Band: -20 dBc
Freq. Stability: +100 ppm -25oC to +68oC
Receive
Sensitivity: -95 dBm
Selectivity
Adjacent Channel: -65 dB
Spurious & Image: -85 dB
Antenna System
Antenna: ½ Wavelength, flexible
RF Output
Compatibility: 50 Ω
AUDIO CHARACTERISTICS
Frequency Response: +6 dB, 300 - 5800 Hz
Microphone: Internal or external
Mic Audio Processing: Dual Time Constant AGC
Dynamic Range: 55 dB, Minimum
Speaker: Internal or Remote
Rated Audio Output: 400mW into 16 Ω(less than
5% distortion)
Remote Speaker/Mic: Model 1230-04
VOICE DATA SCRAMBLING
Type: Synchronous Key Stream
Key Generation: External, Hand Held, Model
1260 Key Loader
Key Storage: Internal, non-volatile memory
Number of Keys: Two sets, Private and
Common
USER CONTROLS
On-Off/Volume
Channel (Mode) Select
Code Select
PTT
INDICATORS
Power/Battery Low
Transmit
POWER REQUIREMENTS
Battery Pack: 1200 mAh, Nickel Cadmium,
rechargeable (1800 mAh
available)
TEMPERATURE
Operating: -25oC to +68oC
Storage: -40oC to +85oC
PHYSICAL DIMENSIONS
Less Battery: 6.25" x 2.75" x 1.50"
(HxWxD), 1lbs.
With 1200 mAh
battery: 8.625" x 2.75" x 1.5"
(HxWxD), 1lbs.
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: 3
1.2 CONTROLS, INDICATORS, USER I/O
This section describes the user interfaces and indicators provided by the Model 1225 Hand Held
Transceiver.
USER CONTROLS
VOLUME Dual function rotary switch. It is the power on/off switch plus volume control
CHAN The channels are A, B and R where R refers to repeater operation.
CODE A two position switch allowing selection of either the common (C) or private (P) code.
PTT A momentary push button switch that places the Model 1225 in the transmit mode.
STATUS INDICATORS
PWR Green, multi-function LED. Steady illumination indicates that power is on and battery condition
is normal. Blinking LED indicates that the battery voltage is low and approximately 180
minutes of receive or 15 minutes of transmit operation remain from the time the light starts
blinking.
TX Red LED, when illuminated, indicates that unit is in transmit mode.
USER CONNECTIONS
Key Loader A rear panel connector accessed by sliding the door. Connecting the Model 1260 Key Loader
to this port, privacy codes can be downloaded from the loading device to the Model 1225 where
they are stored in non-volatile memory. Operating power for the Model 1260 is supplied from
this connector.
Mic Side panel, 4 pin microphone connector. Accepts the standard Model 1230-04 Surveillance
Micphone/Earpiece Assembly.
CONNECTOR SPECIFICATIONS
Microphone: Hirose HR10A-7P-4P
Antenna: SMA Female to mate with special panel mount connector
NOTE: only the ATS provided antenna should be used with the Model 1225
Key Loader: ATS Model 1230-03 Adapter Cable
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: 4
SECTION TWO
OPERATION
2.0 GENERAL
The ATS Model 1225 Hand Held Transceiver is one of the System 1200 devices. The System 1200
devices were designed to provide secure communications to law enforcement agencies. This section describes the operation
of the Model 1225 with the other units in the System 1200 family.
2.1 ATS 1200 SYSTEM COMPONENTS
The ATS System 1200 includes the Model 1245 monitor Station and the Series 1250 Transmitters.
2.2 MODEL 1225 OPERATION
Before operating the Model 1225, the user should read Section 1.2 of this manual, where the user controls
and interfaces are described.
The ATS System 1200 was designed to support two primary operating scenarios. The first scenario is
direct transceiver-to-transceiver communications. In this scenario, communications occur between individual transceivers,
using either Channel A or Channel B. The second scenario requires the use of a repeater to extend the operating range. In
the Repeater Mode, system components transmit on Channel A (or Channel C) and receive on Channel B. The Model 1240
Portable Repeater was designed primarily to support the second scenario but it also provides for direct communications
capability.
To communicate with other units in the direct transceiver-to-transceiver mode, all units must be set to the
same channel, either Channel A or B, set to the same code, either C or P and have the same keys loaded. In the repeater (R)
mode, the Model 1240 Portable Repeater receives transmissions on Channel A and re-transmits them on Channel B. To
use the repeater, the Model 1225 CHAN select must be set to R.
A fully charged battery pack should be installed onto the Model 1225 Hand Held Transceiver prior to
each deployment. To operate the Model 1225, place the CHAN switch to the desired position, A, B, or R (repeater), select
either the common (C) or private (P) code with the CODE switch and turn the unit on by rotating the VOLUME control from
the OFF position.
NOTE
For non-repeater applications, all system transceivers MUST be set to the same
channel and code. Cross channel or cross code operation is not possible.
During idle periods, the Model 1225 will power down most of the receive circuits.
The Model 1225 Hand Held unit only transmits when the PTT switch is depressed. The integral, side
panel mounted PTT is a momentary switch and must be held down for the duration of the transmit interval. The Model 1225
also includes an integral microphone and speaker. The microphone is sensitive and should be held several inches away from
the mouth when transmitting.
2.2.1 Safety Considerations
The Model 1225, as with all electronic devices, radiates electronic energy and could pose a safety hazard
if used improperly. To minimize any potential radiation hazards, the user should:
APPLIED TECHNOLOGY SOLUTIONS, INC.
Document: FCC1225manual.wpd issued: jan99 revised: July 27, 1999 page: 5
1. Hold the radio so that the antenna is away from the face and body, minimally 2-3", when
transmitting and,
2. Minimize transmit time to approximately 1 ½ minute duration over a 15 minute interval.
2.3 EARPIECE/MICROPHONE ASSEMBLY
Optionally, the Model 1230-04 Surveillance Microphone/Earpiece Assembly can be used with the Model
1225 Hand Held Transceiver. This assembly includes a covert PTT microphone and a covert earpiece that can be hooked
over the ear. The assembly connects to a top panel Hirose connector. The integral microphone and speaker are disabled
with the Surveillance Microphone/Earpiece Assembly connected.
2.4 BATTERY
The Model 1225 Hand Held transceiver operates from a 1200 mAh or an 1800 mAh Nickel Cadmium,
rechargeable battery. The battery slides onto the Model 1225 battery clip assembly located on the bottom of the unit. To
remove the battery, push the retaining clip upwards towards the top of the unit and slide the battery in the direction opposite
the clip. When installing a battery, insure the grooves on the top of the battery are properly aligned with the baseplate. The
battery should slide on easily.
A blinking PWR LED on the Model 1225 indicates low battery conditions. The battery should be
replaced immediately with a fully charged battery. The Model 1225 Hand-Held transceiver will operate for approximately
180 minutes in receive mode or 15 minutes in transmit mode after a battery low condition is indicated. Only critical
transmissions should be made after the battery low condition is indicated.
2.5 ANTENNA
The Model 1225 is provided with a flexible antenna. The antenna is screwed into the top panel mounted
connector and fits within the cup. No other antenna should be used with the Model 1225.
2.6 PRIVACY CODES
Privacy keys are stored in non-volatile memory. The keys are loaded into memory using the Model 1260
Key Loader. If a keyed unit is lost or stolen, the keys in the remaining units can be changed quickly to maintain the overall
security. Code selection is made using the top panel switch. Two codes selections are available, common (C) and private
(P). The C code is factory set on all units and provides a common scrambler code for use during inter-agency operations.
The P code is intended to be agency or group specific. The P code can be changed by the user. In operation, the Model
1225 uses different codes for Channel A and Channel B operation.
To load a P code into the Model 1225, use the Model 1230-03 Adapter Cable to connect the Model 1260
Key Loader to the key loader connector located on the bottom of the Model 1225. The POWER indicator on the Model 1260
should light (providing the Model 1225 is powered on). Select a code by rotating the KEY NUMBER thumb wheel switches
on the Model 1260. (Selecting a code number above 300 will result in an error indication on the Model 1260.) Depress
the LOAD KEY button on the Model 1260 to download the selected key. The KEY LOADED indicator on the Model 1260
should light, indicating that the new keys were successfully loaded into the Model 1225. If the LOAD FAIL indicator lights,
the key load sequence did not succeed.
Table des matières
