Name: Audio Surveillance for GSM/PSTN/ACC/ ADSL Networks

Text: ASN
Audio Surveillance for

GSM / PSTN / ACC / ADSL Networks

TSU INDEX
Audio Surveillance for GSM/PSTN/ACC/ADSL Networks
 

Ref

Number

Description

1  

6401  

Audio  Surveillance  GSM  Spy  Phone  

2  

6402  

Audio  Surveillance  Via  GSM  Network  

3  

6403  

GSM  Data  and  Audio  Recorder  

4  

6404  

Audio  Surveillance  Software  Manager  

5  

4016  

The  Informant  

6  

6205  

Covert  Audio  Surveillance  System  With  Remote  Control  

7  

6205  RC  

8  

6206T  

9  

6206  HPT  

10  

6206  Receiver  

11  

6206  
Programmable   Adjustable  Frequency  Receiver  
Receiver  

Remote  Control  Transmitter  Activator  For  6205  Transmitter  
Covert  Audio  Surveillance  Micro  Transmitter  
Covert  Audio  Surveillance  High  Power  Transmitter  
Dedicate  Receiver  

12  

6206DS  

Local  Docking  Station  

13  

6206DSP  

Local  Docking  Station  with  DSP  

14  

6206  Server  

Micro  Room  Transmitter  System  

15  

6206  Ponte  

RF  Repeater  for  Micro  Room  Transmitter  System  

16  

6206  GSM  
Repeater  

GSM  Repeater  System  For  6206  Series  

17  

4004  

Multi  Room  Monitoring  via  Telephone  Lines  

18  

4005  

Audio  Monitoring  via  Power  Lines  

19  

4020  

Audio  Surveillance  Network  

20  

4029  

Universal  GSM  Module  

Audio Surveillance GSM Spy Phone

Model 6401

Incorporating the latest technology we are proud to announce the arrival of the GSM spy phone.
These phones have the following features:
Listen-in to the mobile conversations made/received on the Spy Phones
Receive copies of all incoming & outgoing SMS (text) messages
Notification, via SMS, of when a call is made or received with the number of the caller or
number dialed
Listen-in to the surrounding conversations/noises of the ‘Spy Phone’
Notification, via SMS, of when the SIM card has been changed and its new number
Remotely change the ‘AN’ (Access Number) by simply sending an SMS (text) command
No alert to the target as there will be NO logs, lights flashing, noises or vibration when a
‘Spy’ feature is activated

SMS INTERCEPTION
Simply give the target the Spy Phone and every time they send or receive a text message a
copy will be sent to your phone (or a different predefined mobile number). Your copy will
include the actual message, the sender/recipient's number and the time & date.

CALL INTERCEPTION
Every time the target makes/receives a call with the Spy Phone you will be notified via SMS
with the caller’s number or the number the target has dialed and if you ring the Spy Phone from
the access number you will be able to intercept the call and hear both sides of the conversation.

ROOM INTERCEPTION
When the Spy Phone is on, but not in use, you can ring into the Spy Phone from the access
number and listen-in to the surrounding conversations/noises. This is the latest and most
popular method of monitoring mobile phone activity, whether it’s to monitor partners/spouses,
colleagues or even your children.

Mobile Phone Examples

CONFIDENTIAL

1

Audio Surveillance Via GSM Network

Model 6402

The Model 6402 series is the latest addition to the GSM audio surveillance product line. Elaman
has updated the design of established GSM audio surveillance products to increase deployment
versatility, while reducing enclosure size and power consumption.
The Unit is suitable for covert audio surveillance in both mobile target and fixed concealment
applications. Because the Unit communicates with the listening center over the voice channel of
the GSM network the operating range is unlimited. The two microphones supplied with the Unit
can be concealed in different areas of the target vehicle or room. The unit can be used
anywhere GSM network coverage is available, making it ideal for concealment in buildings and
exposed locations where conventional RF devices do not provide sufficient operating ranges for
safe monitoring.
Distinguishing characteristics are:
small size and rugged construction
exceptional audio quality
reduced power consumption
unattended operation, once installed no operator intervention is
required

MAIN FUNCTIONS
Automatic calling to the listening center in case of motor sensor activation, a VOX event or
when its digital input - connected to the vehicle electrical circuit - receives any information
from it
Programmable with SMS and with DTMF tones/Transmission of status information via SMS
Light sensor for discovery detection, sends an alarm via SMS

TECHNICAL FEATURES
Audio monitoring unit for covert audio surveillance using the GSM network, with dual SIM cards
capability
Microphones
Current drain
Dimensions (mm)

2, selectable - 7 levels 0+36 dB
receiving; approximately 20 mA @ 12 V
transmission; 80÷160 mA @ 12 V
90 x 39 x 11

CONFIDENTIAL

1

GSM data & audio Recorder

Model 6403

The Model 6403 can be equipped with an internal solid state recorder for recording during
periods when communications are lost or unadvisable. The unit automatically records when
audio is detected and the device is not communicating with the listening center. This recording
can be downloaded later when conditions allow GSM communications to take place.
Other distinguishing characteristics are:
small size and rugged construction
exceptional audio quality
reduced power consumption
unattended operation, once installed no operator intervention is
required

MAIN FUNCTIONS
Automatic calling to the listening center in case of motor sensor activation, a VOX event or
when its digital input – connected to the vehicle electrical circuit -- receives any information
from it
Programmable with SMS and with DTMF tones/Transmission of status information via SMS
Light sensor for discovery detection sends an alarm via SMS

SPECIFICATIONS
Audio monitoring unit for covert audio surveillance using the GSM network, with internal solid
state recorder.
Model 6403 Characteristics
Microphones
Current drain
Dimensions (mm)

2, selectable - 7 levels 0÷36 dB
Receiving: approximately 20 mA @ 12 V
Transmission: 80÷160 mA @ 12 V
90 x 39 x 11

Recorder Characteristics
Bandwidth
Compression algorithm
Sample rate
Recording time

300÷3400 Hz (telephone system quality)
ADPCM 2:1 at 4 bit
8 KHz
2h 20 m

CONFIDENTIAL

1

Audio Surveillance Software Manager

Model 6404

The Model 6404 is a graphic user interface to simplify the operator activity in setting and
monitoring the Model 6402 and Model 6403 remote units.
With this software it is possible:
to manage various units, each of them can be singularly called and set
to listen-in to the audio of a single target unit in real-time and to record at the same time on
the PC hard disk
to manage the Model 6403 track list, operating on the commands play/record/delete
to directly download the Model 6403 tracks on the PC hard disk
The Model 6402 is a small and compact device suitable for covert audio surveillance in both
mobile target and fixed concealment applications, for safe monitoring.
To enhance the network accessibility and increase the reliability of the Model 6402
communication channels, a second SIM card from a different GSM provider can be installed in
the unit. The unit can then be programmed to switch (automatically or manually) between the
two GSM providers depending on which provider has the best coverage.
The Model 6402 can communicate to the listening center via SMS and act according to pre-set
conditions or alarms arising from its sensors (motion sensor, vox, light sensor, digital inputs
connected to the vehicle electrical circuits).
The Model 6403 joins the characteristics of the previously mentioned device with a solid state
recorder and high-density flash memory.
The Model 6403 automatically records when audio is detected and the device is not
communicating with the listening center. This recording can be downloaded later when
conditions allow GSM communications to take place.

CONFIDENTIAL

1

Model 4016

The Informant
OVERVIEW

Deployed in situations where a user’s true mobile number needs to be withheld, The Model
4016 is a convenient means of providing untraceable communications by both voice and SMS
text messaging and is ideal for:
Law enforcement informant and operative management
Intelligence and counter intelligence work
Hostage/kidnap communications
Witness relocation/protection communications
Providing undercover operatives a covert communications recording facility
Counter measures against GSM location services
The Informant is a remote call diverter for use with GSM cellular
networks. It allows calls to a given GSM mobile to be diverted to
another mobile, thereby ensuring the anonymity of the called party.
Where an incoming call has to be monitored e.g. kidnap scenarios,
the Informant offers digital recording and live monitoring on all
diverted calls.
Key features of the system are:
Receive and transmit text messages from any GSM network
Automatically redirect text messages to a predetermined mobile
Internal logging of all received and transmitted messages
Logging of all user interactions with the system
Redirect voice calls to a predetermined number
Change predetermined number via text message
Digitally record voice calls. (Analog output also available)
Operates with any GSM network provider (including pre-paid)
Totally under the control of the operator. No network involvement
Compact system, totally portable (12v dc power requirement)

THE INFORMANT
The GSM Call diverter the Informant system consists of:
The informant communications module containing two GSM terminals and USB
interface
Controller PC running the application software and controlling the individual GSM
terminals within the Model 4016
The system controls phones by answering calls, making calls, re-directing text messages and
voice calls to other numbers, and logging CLI (caller ID) with or without answering the call. All
voice and text information is stored in an easily configured database on a hard disk, for simple
interrogation of data.

CONFIDENTIAL

1

Model 4016

The Informant
THE INFORMANT COMMUNICATIONS

The Model 4016 module contains two digitally controlled Tri Band GSM phone terminals, each
capable of handling voice or SMS text messaging. The received audio and text from one module
can be retransmitted by the other module, and vice versa. These modules are able to accept
SIM cards, pre paid (or contract), which makes them virtually untraceable and allows easy
replacement if any number is compromised. The Model 4016 provides an analog audio output
(stereo jack socket) for live monitoring or analog recording. Two SMA aerial connections are
provided with suitable aerials. Power required is 12V DC. A switch mode power supply and a
vehicle 12v adaptor are supplied with the Model 4016.

CONTROLLER PC
Model 4016 communicates with the controlling PC via the industry standard USB interface. The
PC can be equipped with a CD-writer for system backup and 10/100 LAN interface for
connection and control over a network.
The software provides secure password protected control over the system configuration, as
well as an audit facility that maintains a record of system changes and includes:
Date, time, and incoming, outgoing calls per facility (CLI and DNI)
SIM history (date inserted into module and module IMEI)
Handler history per facility
External time reference interface (Rugby/GPS/Internet)
Record of changes to any ‘editable’ function (Tamper Proof)
System administrator access. All received text messages
Digital recording and play back of all calls
Built in database to organize data, and aid in presentation of cases

CONFIDENTIAL

2

Covert Audio Surveillance System With Remote Model 6205
Control

The Model 6205 is an audio surveillance system that employs an innovative Time Modulation
Very Wide Band (TM-VWB) pulsed transmission technique. The TM-VWB transmission is very
difficult to detect or intercept, using RF detectors and other conventional sweeping techniques.
This unique transmission technique also drastically reduces power consumption. The operating
battery life of the Model 6205 is over 30 times longer than conventional transmitters with the
same peak output power level. These characteristics of the system, including integrated remote
control, make the Model 6205 system ideal for both short- and long-term concealment
installations.
The transmitter has an integrated AC receiver providing remote control of transmitter functions
and auxiliary control outputs. This includes the ability to turn the transmitter on and off,
extending battery life and helping to prevent detection.
Wide selections of complementary equipment provide many deployment options and increase
the versatility and reliability of the Model 6205 system. An example is the ability to re-launch the
signal over the cellular network, which provides unlimited operating range.

CONFIDENTIAL

1

Covert Audio Surveillance System With Remote Model 6205
Control
MODEL 6205 TECHNICAL FEATURES
MODEL 6205 T
Micro transmitter – Concealment transmitter with integrated remote control receiver includes
microphone for concealment near the target.
Range

305÷365MHz

Power supply

4÷12V

Stand-by consumption

0.5mA

Consumption

1.2÷3 mA

Output power

10÷200 mW

Audio dynamic range

60dB

Audio bandwidth, -3 dB

50 HZ ÷ 8 KHz

Dimensions (mm)

41 x 17 x 7

MODEL 6205 RECEIVER
Receiver Module – Fixed frequency receiver for the transmitter.
Range

305÷365MHz

Power supply

8÷14V

Consumption

36 mA

Audio level output

200 mVpp

Audio bandwidth, -3 dB

50HZ÷10 KHz

Sensitivity

-90dBm

Dimensions (mm)

73 x 45x 10

MODEL 6205 PROGRAMMABLE RECEIVER
Adjustable frequency receiver Module – Receiver used with the 6205 GSM Repeater and Model
6205 Ponte. Also compatible with Model 6205DS and DSP.
Range

300÷399.9MHZ

Power supply

8÷14V

Consumption

50 mA

Tuning Steps increment

100KHz

Audio level output

200 mVpp

Audio bandwidth, -3 dB

50HZ÷10 KHz

Receive Sensitivity

-90dBm

Dimensions (mm)

73 x 45x 10

CONFIDENTIAL

2

Covert Audio Surveillance System With Remote Model 6205
Control
MODEL 6205DS
Local Listening Base – Docking station for either the Model 6205 Receiver or the Programmable
Receiver with the signal strength meter. Headphones, recorder and phone line connections are
provided. A wide variety of deployment requirements are supported with real-time monitoring,
using headphones or unattended operation utilizing the VOX control and recorder.
External Power supply

from 100 to 240 V ac/12 V dc

Internal power supply

1.5 Ah rechargeable batteries

Front panel meter, switch RSSI(dBm) – B.F. (mV) Vlin.(v)
selectable
Recording level

external adjustment

VOX level

external adjustment

Audio outputs

earphone and recorder jack

Internal voltage booster

28 V out

B.F. generator

1V p.e.p. out

Dimensions (mm)

130 x 90 x 40

MODEL 6205DSP
Local Listening base – functionally the same as the Model 6205 DS, the 6205 DSP adds a DSP
filter to significantly reduce background noise.
External power supply

from 100 to 240 V ac/12 V dc

Internal power supply

1.5 Ah rechargeable batteries

DSP

4 steps of noise reduction

Front panel meter, switch RSSI(dBm) – B.F.(mV) Vlin. (V)
selectable
Recording level

external adjustment

VOX level

external adjustment

Audio outputs

earphone and recorder jack

Internal voltage booster

28V out

B.F. Generator

1V p.e.p. out

Dimensions (mm)

130 x 90 x 40

CONFIDENTIAL

3

Covert Audio Surveillance System With Remote Model 6205
Control
MODEL 6205 SERVER
Phone Line Interface – with a Receiver Module installed, the Model 6205 Server re-launches the
received audio through a dedicated phone line.
Power Supply

18÷60V

Audio output level

2 Vpp max

Level adjustment

external by screwdriver

Line isolation

> 20 M Ohm towards the box

Dimensions (mm)

80 x 58 x 27

MODEL 6205 PONTE
RF Repeater – Using the Programmable Receiver Set turned on the frequency of the microtransmitter, the Model 6205 Ponte re-launches the range of the transmission.
Power supply

9÷24V

Consumption

<80 mA

Output power

1W

RX sensitivity

-90 dBm

Dimensions (mm)

80 x 58 x 27

MODEL 6205 GSM REPEATER
Re-launch over the cellular network – using the internal programmable receiver module the
Model 6205 GSM Repeater can re-launch the receiver audio from the Model 6205 T over the
cellular network. There are many functions that can be programmed, including automatic relaunch when events are detected. Programming is accomplished using DTMF tones. The 6205
GSM Repeater is protected from unauthorized use by a security code, which must be entered
before audio monitoring can take place.
Setting

from Listening Center

Audio selection

Microtransmitter: Model 6205 T
Auxiliary microphone

VOX sensitivity

10 levels

F Set Module

frequency range:
MH 100 KHz
Step:

Power supply

6÷36V

Transmission
ti
Dimensions(mm)

250 mA @ 12V

300÷399.9

123 x 64 x 30

CONFIDENTIAL

4

Covert Audio Surveillance System With Remote Model 6205
Control
MODEL 6205 RC
Remote control – RC Transmitter for the remote control of the Model 6205 T
Internal power supply

Ni-Mh 1.5
batteries

Ah

rechargeable

External power supply

220 vac/12 V cc mains power
supply

Out peak power

2W

Codes

100

Functions

On/Off
Microphone tone
Microphone gain
Power adjustment for Model
6205 T with Model 6205 T var.

Dimensions mm

120 x 60 x 40

MODEL 6205 T VAR
TX Power Adjustment Module – Remote controlled Model 6205 transmitter Transmit power
adjustment. Works with 6205 RC.
Cyclical out peak power 4 steps pre-defined
adjustment of
Microtransmitter Model 6205 T
Dimensions (mm)

22 x 9 x 4

PW 10-12
Power Supply – 10 mA 12 V power supply for the Model 6205 T
Power available

0.3 W

Input voltage

220 V ac ± 10%

Output voltage

12 V

Max current

15 mA

Dimensions (mm)

44 x 26 x 10

CONFIDENTIAL

5

Covert Audio Surveillance System

Model 6206

The Model 6206 is an audio surveillance system that employs an innovative Time Modulation,
Very Wide Band (TM-VWB) pulsed transmission technique. The TMVWB transmission is very
difficult to detect or intercept, using RF detectors and other conventional sweeping techniques.
This unique transmission technique also drastically reduces power consumption. The operating
battery life of the Model 6206 T is over 30 times longer than conventional transmitters with the
same peak output power level.
The characteristics of the system, including low probability of interception, high audio quality,
micro-miniature size and extremely low transmitter power consumption, make the Model 6206
system ideal for both short- and long-term concealment installations.
Wide selections of complementary equipment provide many deployment options and increase
the versatility and reliability of the Model 6206 system. An example is the ability to re-launch the
signal over the cellular network which provides unlimited operating range.

CONFIDENTIAL

1

Covert Audio Surveillance System

Model 6206

MODEL 6206 T
Micro transmitter – radiofrequency transmitter with microphone for concealment near the
target. Very small and compact, the extremely low power consumption allows for extended
operational time without human intervention.
Range

330÷390 MHz

Power supply

4÷12 V

Consumption

0.8÷1.5 Ma

Output power

10÷200 mW

Audio dynamic range

60 dB

Audio bandwidth, -3dB

50 Hz ÷ 8 KHz

Dimensions (mm)

33 x 10 x 3

MODEL 6206 HPT
High Power Transmitter - radiofrequency transmitter with microphone for concealment near the
target. Because of the internal power booster, this transmitter is capable of increased output
power. This system provides a solution to applications where longer distances to the receiving
equipment are required and repeaters are not practical. The Model 6206 T HP maintains the
same characteristics of the standard Model 6206 T including lower power consumption and
high quality audio.
Range

330÷390 MHz

Power supply

6÷12 V

Consumption

4÷14 mA

Output power

60÷600 mW

Audio dynamic range

60 dB

Audio bandwidth, -3dB

50 Hz ÷ 8 KHz

Dimensions (mm)

65 X 13 X 6

MODEL 6206 RECEIVER
Receiver – dedicated receiver for either micro transmitter.
Range

330÷390 MHz

Power supply

8÷14 V

Consumption

36 mA

Audio level output

200 mVpp

Audio bandwidth, -3dB

50 Hz ÷ 10 KHz

Sensitivity

-90 dBm

Dimensions (mm)

73 X 45 X 10

CONFIDENTIAL

2

Covert Audio Surveillance System

Model 6206

MODEL 6206 PROGRAMMABLE RECEIVER
Adjustable Frequency Receiver – receiver used with the Model 6206 GSM Repeater and Model
6206 Ponte (See below). Also compatible with Model 6206 DS and DSP.
Range

300÷399.90 MHz

Power supply

8÷14 V

Consumption

50 mA

Audio level output

200 mVpp

Audio bandwidth, -3dB

50 Hz ÷ 10 KHz

Sensitivity

-90 dBm

Dimensions (mm)

73 X 45 X 10

MODEL 6206 DS
Local Listening Base – docking station for either the Model 6206 Receiver or programmable
receiver connections for the headphones, recorder and phone line are provided. Real-time
monitoring with headphones or unattended operation utilizing the VOX control and recorder
allow for flexibility in its use that can handle practically any situation.
External power supply

from 100 to 240 V ac/12 V dc

Internal power supply

1.5 Ah rechargeable batteries

Front panel meter, switch
selectable

RSSI (dBm) – B.F. (mV) Vlin. (v)

Recording level

external adjustment

VOX level

external adjustment

Audio outputs

earphone and recorder jack

Internal voltage booster

28 V out

B.F. generator

1 V p.e.p. out

Dimensions (mm)

130 x 90 x 40

MODEL 6206 PONTE
RF Repeater – Using the Modulo F Set tuned to the frequency of the micro-transmitter, the
Model 6206 Ponte extends the range of the transmission.
Power supply

9÷24 V

Consumption

< 80 mA

Output power

1W

RX sensitivity

-90 dBm

Dimensions (mm)

80 x 58 x 27

CONFIDENTIAL

3

Covert Audio Surveillance System

Model 6206

MODEL 6206 DSP
Local listening base with DSP – functionally the same as the Model 6206 DS, the 6206 DSP
adds a DSP filter to significantly reduce background noise.
External power supply

from 100 to 240 V ac/12 V dc

Internal power supply

1.5 Ah rechargeable batteries

DSP

4 Steps of noise reduction

Front panel meter, switch RSSI (dBm) – B.F. (mV) Vlin. (v)
selectable
Recording level

external adjustment

VOX level

external adjustment

Audio outputs

earphone and recorder jack

Internal voltage booster

28 V out

B.F. generator

1 V p.e.p. out

Dimensions (mm)

130 x 90 x 40

MODEL 6206 SERVER
Phone Line Interface - using the Model 6206 Receiver the Model 6206 Server re-launches the
received audio through a dedicated phone line.
Power supply

18÷60V

Audio output level

2 Vpp max.

Level adjustment

external by screwdriver

Line Isolation

>20 M Ohm towards the box

Dimensions (mm)

80 x 58 x 27

MODEL 6206 GSM REPEATER
Re-launch over the cellular network – using the programmable receiver the Model 6206 GSM
Repeater can re-launch the received audio from either the Model 6206 T or the Model 6206 HPT
over the cellular network. There are many functions that can be programmed, including
automatic re-launch when events are detected. Programming is accomplished using DTMF
tones.
Audio selection

microtransmitter: Model
6206T/Model 6206 T HP
auxiliary microphones

VOX sensitivity

10 levels

F set Module

Frequency range: 300÷399.9.
MHz step: 100 KHz

Power supply

6÷36 V

Transmission
consumption

250 mA @ 12 V

Dimensions (mm)

123 x 64 x 30

CONFIDENTIAL

4

Multi Room Monitoring Via Telephone Lines

Model 4004

The Model 4004 Wired Room Monitoring System
is a highly professional system designed for
remote monitoring where full transmitter control
via standard PSTN lines is needed.
Model 4004 is designed to allow the user to
install up to 8 transmitters, using a combination
of active phone lines or spare wires and mains
lines.
The individual transmitters can be switched on
and off remotely.
The modular Model 4004 system consists of
transmitter(s), one receiver module, PSTN
modules and of control software for PC.
Transmitters
The Model 4004 transmitters incorporate the following advanced features: scrambler, AGC and
remote control receiver.
The remote controlled functions of the transmitters are power on/off and scrambler on/off.
Two different types of transmitters have been developed for the Model 4004 system. The
Model 4004 Wired Monitoring transmitter (HWM) is to be used on active phone lines or spare
wires. The Model 4004 Carrier Current transmitter (HCC) is to be used on active mains lines.

RECEIVER SYSTEM
The RX module is a small, flat and compact cabinet, which is only 44 mm high. One RX module
handles 2 transmitters simultaneously.
The RX module has the following features:
Target line interface for both PSTN and spare wires (HWM) and mains wires (HCC)
Dual tuner - each with 4 channels
High impedant input for LF audio. Enables monitoring of PSTN line without transmitter
Audio descrambler
Remote control of transmitters
Noise masking for HWM transmitters
Line output for recording
Output for headphones
It is possible to have both HWM and HCC transmitters operating at the same time, enabling the
operator to monitor, for example, one HWM transmitter and one HCC transmitter
simultaneously.
The RX module is powered from an external low voltage source. The RX module is delivered
with a mains adapter, but can also be powered from a car battery.

CONFIDENTIAL

1

Multi Room Monitoring Via Telephone Lines

Model 4004

PSTN MODULE – REMOTE SET-UP
The PSTN module provides a link from the listening post to the monitoring site. One PSTN
module is needed at the monitoring site and one at the listening post. The PSTN module can
handle 2 lines simultaneously and transfers both the audio from the transmitter and the remote
control commands.
The PSTN module at the monitoring site can also be dialed up from standard telephone
equipment, including mobile phones. Access to the system is done by means of the telephone
keypad. This feature enables the operator to make a quick control of the TX / RX / PSTN set-up.
The PSTN module is very easy to install – it is connected to the receiver via one single cable,
containing all the required signals and power.

CONTROL SOFTWARE
All facilities in the Model 4004 system can be software controlled via a PC. The control set-up
can be provided by connecting the control PC directly to the receiver module or to the local
PSTN module at the listening post.

APPLICATIONS

Small size transmitters

Model 4004 is ideal for operations requiring:

Audio scrambling

Single room monitoring

Remote control of transmitters

Multi-location room monitoring

PSTN module for link of intercepted
audio to remote listening post

Phone lines, spare wires and mains lines

Current re-injection on phone lines for
system security

Local set-up
Remote set-up

Small “black-box” receiver unit

Undercover “black-box” set-up

Control of software via PC

FEATURES

Easy to install

4 active transmitter channels

Easy to use

High audio quality

CONFIDENTIAL

2

Multi Room Monitoring Via Telephone Lines

Model 4004

SPECIFICATIONS
RX module

Number of channels

4

Frequency range

110-240 kHz

Sensitivity

10 dBuV / 20 dB SINAD

Number of built-in tuners

2

Modulation

FM

Remote control transmitter

28 kHz, OOK

Serial interface to PC / PSTN
module

RS-232

Power source

7-11 VAC or 10-15 VDC

Dimension (HxWxD)

44x130x164 mm / 1.7x5.1x6.5 inches

Transmitters

Number of channels

4

General data

Frequency range

110-240 kHz

Type of modulation

FM

Audio scrambling

Frequency inversion

Remote controllable

Yes

Packing

Shrink tube, black

Transmitted power

50 mVRMS into 100

Line voltage range

6-80 VDC

Dimensions (HxWxD)

Approx. 7.5x32x20 mm / 0.3x1.3x0.8
inches

Transmitted power

500 mVRMS into 2

Mains voltage range

85-265 VAC

Dimensions (HxWxD)

Approx. 15x35x23 mm / 0.6x1.4x0.9
inches

PSTN interface

Global compliant, SW controlled

Number of PSTN lines

2

Data mode

FSK / DTMF

Tape control

VOX controlled, adjustable from PC
SW

Serial interface to PC / RX
module

RS-232

Dimension (HxWxD)

44x130x84 mm / 1.7x5.1x3.3 inches

HWM specific
data

HCC specific data

PSTN module –
Remote set-up

CONFIDENTIAL

3

Audio Monitoring Via Power Lines

Model 4005

FEATURES
Micro-size FM transmitter
FM/PLL signal transmission
Parametric equalizer
Scrambled model available
Long range
Proven technology
Smart VOX with noise cancellation

OPTIONS
STANDARD TRANSMITTER MODEL 4005-TXS
Model 4005-TXS is the standard micro transmitter module with onboard audio circuits.

EXTENDED MICROPHONE MODEL 4005-TXR
Model 4005-TXR is a module where the miniature microphone element is separated from the
transmitter board and mounted on 2 meters of wire, making counter-measure detection
extremely difficult.

SCRAMBLED MODULE MODEL 4005-TXS-S AND MODEL 4005-TXR-S
In order to maintain a low probability of detection and to counter casual interception, We have
designed a micro-sized circuit for scrambling intelligence audio with minor degrading of the
audio quality.

CONFIDENTIAL

1

Audio Monitoring Via Power Lines

Model 4005

TECHNICAL SPECIFICATIONS
RECEIVER MODEL 4005-RX
Carrier frequency to be specified by 140 kHz +/- 500 Hz
customer or standard
Sensitivity (fmod. = 1 kHz, deviation +/- - 82 dBm at 20 dB S/N
3 kHz)
Sensitivity (fmod. = 1 kHz, deviation +/- - 48 dBm at 50 dB S/N
3 kHz)
Selectivity - 30 dB

+/- 20.65 kHz.

Common mode rejection

70 dB

AM rejection (Vin = - 20 dBm, AMmod = 40 dB.
30 %)
Distortion (Vin = - 20 dBm, deviation = 0.55 %, 1 kHz
+/- 3 kHz)
Input impedance

275 ohm

Audio frequency response - 3 dB (line 300 Hz to 5 kHz
out)
Output voltage line out (deviation = +/- 3 700 mV (no load)
kHz)
Output voltage tel. out (deviation = +/- 3 230 mV (600 ohm load)
kHz)
Output impedance tel. out

600 ohm

Output impedance line out

1 kohm

Output impedance headphones out

47 ohm

Parametric
equalizer
adjustment range

frequency 100 Hz to 10 kHz

Parametric equalizer Q adjustment range

0.4 to 4 kHz

Parametric equalizer gain adjustment +/- 15 dB
range
Meter range RF level

- 80 to -20 dBm

Power supply

115 / 230 VAC (50 - 60 Hz)

Dimensions

265 x 255 x 82 mm / 10.43 x 10.04 x 3.23 inches

Weight

2.8 Kg. / 6.17 lbs.

CONFIDENTIAL

2

Audio Monitoring Via Power Lines

Model 4005

TRANSMITTER MODEL 4005-TXS
Carrier frequency

140 kHz +/- 500 Hz

Output impedance

10 ohm

Output voltage (140 kHz sine)

500 mV RMS into 10 ohm.

Max. modulation

+/- 5 kHz

Frequency response

150 Hz to 3.5 kHz - 3 dB

Current consumption

3 mA DC

Audio amplifier AGC range

< 66 dB

Microphone vibration sensitivity

< 66 dB

Dimensions Model 4005-TXS

42 x 22 x 12 mm / 1.65 x 0.86 x 0.47 inches

Dimensions Model 4005-TXR

14 x 9 x 7 mm / 0.55 x 0.35 x 0.27 inches
42 x 22 x 12 mm / 1.65 x 0.86 x 0.47 inches

Dimensions Model 4005-TXS-S

14 x 9 x 7 mm / 0.55 x 0.35 x 0.27 inches
42 x 22 x 12 mm / 1.65 x 0.86 x 0.47 inches
35 x 12 x 4 mm / 1.37 x 0.47 x 0.16 inches

Dimensions Model 4005-TXR-S

14 x 9 x 7 mm / 0.55 x 0.35 x 0.27 inches
42 x 22 x 12 mm / 1.65 x 0.86 x 0.47 inches
35 x 12 x 4 mm / 1.37 x 0.47 x 0.16 inches

CONFIDENTIAL

3

Audio Surveillance Network

Model 4020

1 PRODUCT DESCRIPTION
Audio Surveillance Network (ASN) is a complete solution for law enforcement agencies to
collect, transmit, store and analyze audio coming from distant targets at a centralized location.
ASN consists of both hardware and software elements suitable for building a countrywide audio
surveillance system, or to conduct stand-alone tactical operations. A typical ASN layout consists
of various target locations, remote location sites, a central headquarters and a set of observer
terminals.

CONFIDENTIAL

1

Audio Surveillance Network

Model 4020

Audio is captured form a target location by audio transmitters containing tiny microphones, and
transferred to the remote location site over a telephone line. Usually, a remote location site
exists near a location exchange. It contains a large bank of receivers to collect audio from
various target locations. The received audio channels are digitized and stored in a remote
location server. The audio data is sent to the headquarters using a DSL or E1 link. The
headquarters stores digital audio coming from a number of remote locations in a huge database.
Observer terminals access the headquarters database using custom written audio surveillance
software. An ActiveX based audio player offers audio analysis capability and on-line comment
tag submission to the observers. ASN is the only system of its kind that offers real-time audio
surveillance from a number of distant targets from beginning to end.

2 SYSTEM ELEMENTS
The Following system elements have been developed to build an ASN.
TARGET LOCATION
Xad Audio Transmitter (XTL-ATx)
REMOTE LOCATION SITE
Xad Audio Receiver (XKL-ARx)
Xad Audio Acquisition Platform (XRL-ACQ)
Xad Remote Location Server (XRL-SER)
Xad Remote Location Software (XRL-SW)
HEADQUARTERS
Xad Headquarter server (XHQ-SER)
Xad Headquarter Software (XHQ-SW)

2.1 AUDIO TRANSMITTERS (XRL-ATX)
Audio is collected from the target location using Audio Transmitters (XTL-ATx). Each transmitter
contains a high gain, sensitive microphone. It is installed on the target line irrespective of the
location and polarity. The installation does not interfere with the normal operation of telephone
equipment. XTL-ATx comes in two versions – XRL-ATP works with standard POTS, while XRLATA is designed for ADSL enabled telephone lines. For major operations, up to four XRL-ATx
units can be deployed per target. A user can remotely activate the desired XRL-ATx leaving the
others in standby mode.
Each XRL-ATx has built-in intelligence to sense the line status and start-stop its operation
independent of the user intervention. Salient features of an XRL-ATx are listed below:
Small size 16 x 9 mm
Low current consumption (active 4mA, standby 4 A
High gain microphone 48 dB
Polarity free installation
Seamless operations on PSTN and ADSL enabled lines
Automatic start-stop and mute functions
Choice of 4 transmitters per line
CONFIDENTIAL

2

Audio Surveillance Network

Model 4020

2.2 AUDIO RECEIVER (XRLS-ARX)
Audio Receiver (XRLS-ARx) is a very low noise state-of-the-art receiver to extract clear audio
signals from noisy telephone lines at a distance of 5 Km from the target location. XRLS-ARx
outputs receive audio to the headquarters and phono sockets. There are manual control
buttons on the XRLS-ARx to switch between multi-transmitter installations or mute all, if
required. XRLS-ARx also provides a digital interface which is used to control XRLS-ARx from the
headquarte's software. Main features of XRLS-ARx are listed below:
Transparent operations on PSTN and ADSL enabled lines
Standalone and network operation
Automatic voltage control
Manual button control for standalone operations
Digital control interface
Logic circuitry to control up to 4 audio transmitters
Built-in digital voltmeter
Audio Vu-meter
Automatic volume control
Phono socket
Headphone socket

CONFIDENTIAL

3

Audio Surveillance Network

Model 4020

2.3 AUDIO ACQUISITION PLATFORM (XRLS-ACQ)
The Audio Acquisition Platform (XRLS-ACQ) is a 1U height 19 inch rack mount unit. It consists of
a custom built PCB to acquire, digitize and transfer 28 audio channels to a Remote Location
Server (XRLS-SER)

ACQ uses four 8-bit analog to digital converters to digitize the audio channels. The digital audio
samples are buffered before sending them to XRLS-SER using a USB 2.0 interface. Main
features of the XRLS-ACQ platform are listed below:
19 inch rack mountable casing
Parallel A/D conversion of 28 analog audio channels
64KB buffer memory to ensure data continuity
High speed data transfer using USB2 interface
Integrated interface for audio and transmitter control using RJ45 ports
Acquisition status display

CONFIDENTIAL

4

Model 4020

Audio Surveillance Network
2.4 XAD REMOTE LOCATION SERVER (XRLS-SER)

The Remote Location Server (XRLS-SER) is a powerful machine built with 64 bit AMD 2.0GHz
dual core processor and Linux operating system. The industrial PC casing with front and rear fan
support provides ruggedness to operate in extreme temperatures expected at a remote location
site. The remote location server is lockable at the front providing extra security to the system.

2.5 REMOTE LOCATION SERVER SOFTWARE (XRLS-SW)
The remote location server software (XRLS-SW)
functionality of a remote location site. It is written
security reasons, a user interface has not been
remote location operator uses a console window
features of XRLS-SW are listed below:

runs on XRLS-SER and controls the main
in C++ under a Linux operating system. For
built in the remote location software. The
to execute commands for each task. Main

Command line interface for added security and reliability
Security database installation without user interaction
Built under Linux for easy integration, faster speed and stability
Database storage for systematic archiving of audio streams
Automatic audio acquisition and uploading according to the headquarters schedule
Thread based real-time audio encoding and uploading
Local audio offload option for emergency
Segmentation of audio streams into packets for quick transmission
Synchronized time stamping of audio data cross the ASN
Lossless compression of audio data for integrity and completeness
Remote control of attached audio devices from the HQ software
Password protection, activity logging and secure reporting to HQ software
Memory management and automatic deletion of contents
Separate audio device set-up and local testing utility
TRANSMISSION HARDWARE
The requirement for transmission hardware (E1 routers, DSL and related components) may
differ in each case. Depending upon the requirement, we can specify the transmission
hardware to be used in an ASN.

CONFIDENTIAL

5

Audio Surveillance Network

Model 4020

2.6 HEADQUARTER SERVERS (XHQ-SER)
The HQ is the main control center of the ASN. It is connected to remote location sites in a star
network topology. The XHQ-SER comprises two database servers, a storage server, and an
application server. The database servers are similar in specification to XRLS servers. The
storage configuration is tailored according to the requirements. To build redundancy, the
database servers are connected to the storage server in cluster configuration. The application
server is an apache based server, which hosts web-based HQ server software. It allows the
observer terminal to access the huge audio database.

2.7 HEADQUARTER SERVER SOFTWARE (XHQ-SW)
The headquarter server software (XHQ-SW) provides the main control of the ASN. XHQ-SW
software is accessed by the Microsoft Internet Explorer through a Web-based environment. The
complex system information remains hidden behind a user friendly graphical user interface
(GUI). All the software pages are interconnected. A user can navigate across them using a
dynamic menu bar. The menu items vary according to the user access privileges.
The main features of the XHQ-SF are listed below:
Secure login feature with individual access rights
Personalized home page portal for each user
Easy and dynamic remote location site creation
Site and target location based user access
Hierarchical user and group management structure
Entity based access rights and on the fly user creation
Automatic information update across the network
Time, tag and target based audio content search
ActiveX based audio player with audio range control
Custom audio play list with forward/backward audio search options
Real-time audio access and analyze feature
Observer comment tagging and retrieval
Audio save option for privileged users
Automatic e-mail feature within the groups
Audio transmitter control for each remote location site
Network site status reporting
Advanced audio download scheduler for target locations
Activity log and reporting

2.8 OBSERVER TERMINALS (OT)
Observer Terminals are standard PCs connected to the HQ server in an intra net configuration.
They access XHQ-SW to access and listen to audio records stored in the HQ database. ASN
setup does not require an installation of the client software. Updates are automatically reflected
to the observer terminals when XHQ-SW is updated on the headquarter application server.

CONFIDENTIAL

6

Model 4029

Universal GSM Modules
UNIVERSAL GSM MODULE

The Model 4029 Universal GSM module is a multiple function remote controller and surveillance
device. The unit can be controlled by DTMF tones over the GSM network and be used as an
audio repeater at the same time.
The Universal GSM module can be dialed up from any telephone on the public telephone
network.

FEATURES
Both the GSM module and external equipment can be controlled by DTMF tones through the
GSM network.
Two line outputs and two line inputs are available for controlling and listening to external
equipment, such as the Model 6202-1 Receiver.
To control other external equipment, the Universal GSM module also has an internal 3-pin
relay and an internal 12 VDC, 00 mA supply source, controllable via DTMF tones.
An audio input for our MPA (Microphone Pre-Amplifier) is available.
A Target PSTN input (POTS) for monitoring of phone lines is available.
A Sense input activated by a high or low level can call a preprogrammed phone number.
The module is prepared for RS232 and Model 6006S On/Off commands trough the RJ45
connector.

FEATURES CONTINUED
The GSM dial-in can be protected by a pin code or by preloading up to eight phone numbers
that are allowed to call the modem
The module can be set into VOX mode that will make the unit dial out automatically when the
audio level on any of the two line inputs, MPA and PSTN is above a certain level for a
specified amount of time. If the VOX function is activated, a preprogrammed phone number
can be dialled automatically, the 12 VDC turned on or the internal relay can be switched
The module has an alarm handler. If the alarm function is activated, a pre-programmed phone
number can be dialed automatically, the 12 VDC turned on or the internal relay can be
switched
The module is also prepared for sending SMS during alarm handling
CONFIDENTIAL

1

Model 4029

Universal GSM Modules

All settings can be adjusted by the supplied PC set-up program. Functionalities can be
changed or added by uploading new firmware
The Universal GSM module comes as default with two antennas: one portable antenna and
one discreet car antenna

TECHNICAL SPECIFICATIONS
Power requirements

Externally powered

DC input range

3.6 – 15 V

Power consumption leveling for max power
save/control

By e.g. the WAVECOM Wireless CPU
Module Q2686

Power consumption max, Active

TBD

Power consumption max, Standby

TBD

Internal rechargeable backup battery

3.7V Li-Po with 2100 mAh.

GSM Bands

850/900/1800/1900 MHz

Audio Input output level

0 dB, 775 mV, adjustable

ADC

10 bit

SIM Card Interface

3V / 1.8V

Relays (In general)

30 VDC, 1A

Antenna

SMA connector

USB

Mini USB

Control (RS232/Relay1)

RJ45

Sense in

2 way screw terminals

Relay 2

3 way screw terminals

12 VDC/100 mA out

2 way screw Terminals

Target PSTN (POTS in)

2 way screw Terminals

Line in/Line out/MPA

Mini jack 3.5mm

Power

2.1mm DC Connector

Dimensions (H x W x D)

29 x 105.4 x 80 mm

CONFIDENTIAL

2

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