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SPECIAL HIGH POWER
VEHICLE MOUNTED
MULTIBAND RF COMMUNICATION JAMMER |
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66-2200MHz, 350Watt RF output power,
Mercedes S500 platform |
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TECHNICAL DESCRIPTION |
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1.
Technical characteristics |
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1.1 Base technical parameters. |
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Vehicle type Mercedes S500 |
Mercedes S500 |
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Frequency bands |
See frequency table below |
| Power
Consumption |
Max 1500VA |
| Output
RF Power |
350W |
| Number
of frequency bands |
10 |
| Power
output per band |
See frequency table below |
| Power
supply voltage |
+12VDC (from additional car
alternator) |
| Total
System weight |
~100kg |
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Operation temperatures |
-10° … +50° C |
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Humidity |
Up to 90% |
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Antennae type |
High gain omni directional |
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Antennae number |
5 |
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1.2 Frequency bands and
applications. |
Frequency band,
MHz |
Applications |
Output power per
band, Watt |
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66 - 88 |
Walky-Talky(IC-F2), TV |
40 |
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135 - 175 |
Walky-Talky (IC-F3) |
60 |
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400 - 450 |
Cellular NMT/CDMA, Walky-Talky
TETRA, RKE, TPMS, RFID |
25 |
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450 - 530 |
Cellular CDMA450, Walky-Talky,
RFID |
25 |
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800 - 850 |
TV, TETRA (Walky-Talky),
RFID |
25 |
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850 - 925 |
Cellular CDMA |
25 |
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925 - 960 |
Cellular GSM |
50 |
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1520 - 1580 |
GPS (L1), Satellite (Thuraya,
Iridium, RBGAN, Inmarsat) |
25 |
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1805 - 1880 |
Cellular HGSM (DCS) |
50 |
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2110 - 2170 |
Cellular UMTS/WCDMA |
25 |
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Total Output Power, Watt: |
350 |
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* Specifications are
subject to change without prior
notice |
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2.
General description |
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2.1 Introduction |
The special high power multiband RF
communication jammer is fully
integrated into Mercedes S500 car
system
witch included (Please refer to
diagram (sec. 2.3) : |
- Remote control unit.
Details: The remote control unit
allows to full operator’s control
the Jamming System: to turn on/off
all separate
band and to see the system status; |
- Main control unit
Details of main functions:
Overheating and overload protection,
high VSWR antenna and RF PA module
output
protection, voltage and current
level control, start/stop RF
transmitting control; |
-Special
power source
Detail: alternator (28VDC/140A,
total output DC power ~3900W) -
fully independent from car
electricity, high
efficiency, high stability, air
cooled, waterproofed, see the spec
attached; |
- Jammer power amplifier modules
Details: High efficiency RF PA
modules with high density continues
FM noise source; |
- Cooling system
Details: The cooling system included
two high power (~640 CFM) DC axial
turbo air fans (incoming and
outgoing)
with air filters for incoming side,
see the spec attached; |
- Antennae
Details: fully installed and tuned
high gain omni directional antennae
set, see the specs attached. |
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2.2 System schematic diagrams. |
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Click Here for Larger Image |
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2.3 System installation diagrams. |
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A P P
L I C A T I O N S
These alternators
provide very high output
power and are designed
to be built into
applications requiring
high consumption of
electrical energy. They
were all initially
designed
for installation on
diesel engines in buses
and
some special purpose
applications. |
D E S I G N
The alternators are
three-phase, 16-pole
synchronous generators,
self-excited by a rotor
consisting of claw poles
using protected slip
rings. They have a
built-in rectifier and
regulator
and are cooled by an
external fan. Design
solutions and
anticorrosion coatings
as well as
specially chosen
bearings ensure long
life
without maintenance
under normal operating
conditions. For
operation in extremely
hard
conditions -
temperature, dust, water
- it is
advisable to ventilate
the alternator using a
special protection cover
on the rear. |
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M A I N
T E C H N I C A
L D A T A |
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Type |
AAT |
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Nominal voltage |
28V |
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Nominal current |
75A-140A |
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Stator diameter |
165 mm |
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Weight |
~9.6 kg without
pulley for 75A
~14.5 kg without
pulley for 140A |
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Max. speed |
9,000 RPM |
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Regulator |
Built-in or
separate
Monofunction
Hybrid
technology |
Pulleys and
drive
end brackets |
Different types
according to
customers'
requirements |
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Terminals |
Screw and/or
blade terminal |
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Drive end
bearings |
Type 62306-2RS |
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Rear end
bearings |
Type NU 202 |
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Power diodes |
Press fit Zener
diodes |
Protection of
the slip
rings and
brushes |
Protected
against ingress
of solid foreign
matter and
powerful water
jets (IP 56) |
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Ambient
temperature |
From - 40¼C to +
110¼C |
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C o o l i n g
The alternator has a
built-in fan with axial
- radial blades that
allow rotation in both
directions. It is also
possible to use a
low-noise fan with
specially shaped blades. |
S t a t o r
A three-phase stator
winding with a high
filling
factor of the slots and
a special method of
assembly
provide better cooling
and high output power. |
R o t o r
The rotor field winding
provides excitation of
the
alternator through slip
rings. With regard to
the
installation
requirements, slip rings
and brushes are
protected in an enclosed
environment sealed
against
dust and water. |
R e c t i f i e r
The rectifier stack is a
three-phase bridge
circuit
with built-in press fit
power and excitation
diodes.
Press fit Zener diodes
are used to protect
alternator
and loads on the vehicle
against overvoltages. |
R e g u l a t o r
The regulator together
with the brush holder is
built
into the rear end
bracket of the
alternator. Regulators
are produced in
thick-film hybrid
technology.
Monofunction versions of
the regulator only are
available. |
B r a c k e t s - B e a
r i n g s - P u l l e y
s
The high quality
specially chosen
bearings provide
long service free life. |
E l e c t r i c a l t e
r m i n a l s
Electrical terminals are
according to the
customers'
requirements.
9,000 RPM
~9.6 kg without pulley
for 75A
~14.5 kg without pulley
for 140A |
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C R O S S S E C T I O N |
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Pos 1 ... Pulley |
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Pos 2 ... Drive end bearing |
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Pos 3 ... Fan |
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Pos 4 ... Drive end bracket |
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Pos 5 ... Stator |
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Pos 6 ... Rotor |
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Pos 7 ... Rear bracket |
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Pos 8 ... Rectifier |
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Pos 9 ... Rubber gaskets |
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Pos 10 .. Brush |
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Pos 11 .. Brush holder with
voltage regulator |
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Pos 12 .. Oil seal |
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Pos 13 .. Rear bearing |
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Pos 14 .. Slip rings |
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Pos 15 .. Terminals D+, B+,
W |
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Pos 16 .. Capacitor |
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n¡ (RPM) |
I (A) at
1800 RPM |
I (A) at
6000 RPM |
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28V 75A |
1000 |
50 |
75 |
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28V 95A |
950 |
60 |
95 |
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28V 105A |
900 |
70 |
105 |
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28V 120A |
1020 |
78 |
120 |
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28V 140A |
1080 |
90 |
140 |
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Antenna 135-175 is
wideband antenna
covering frequency
range from 135 to 175
MHz and is intended for
stationary
and portable use.
Electrically the antenna
is
designed as a dipole
with capacitive
continuously distributed
loading along the upper
radiating element. All
metal
parts of the antenna are
DC grounded and enclosed
in
tube made of composite
material epoxy-glass
ensuring
good resistance against
atmospheric influences
and long
life time. The antenna
could be mounted on any
metal
tube with inner diameter
greater than 30 mm and
outer
diameter less than 49 mm
(for instance standard
tube
11/4”). |
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TECHNICAL
DATA |
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Frequency
range |
135 -
175 MHz |
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Impedance |
50 ohm |
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VSWR |
< 1,6 (DIAG.
1) |
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Gain |
3 dBi |
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Polarization |
VER |
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Maximum
power |
400 W CW |
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Connector |
N |
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Height |
1,37 m |
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Diameter |
28 mm |
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Mass of
antenna |
1,6 kg |
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Wind
velocity |
150 km/h |
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Temperature
range |
-40....+70
°C |
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The antenna is wideband monopole VHF
antenne intended for frequency range
from 66 88 MHz. The antenna is
designed for maximum possible gain
and acceptable low VSWR with extreme
short raidiating element |
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The antenna is therfore
intende for use on
smaller vehicles and
motorcycles etc. |
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antenna is composed of
two parts: The antenna
base and the radiating
element. The antenna
base is made of
stainless steel and of
composite materials. |
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the base is a matching
transformer unit.
Powerful biconical
spring protects the
antenna against impacts.
The radiating element is
made of composite
materials enable
outstanding strength,
even in hardest
conditions of use. |
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antenna base has four
mounting holes equally
spaced on a 4.5" (114.3
mm) circle which
complies with US Army
standard (AS-1729).
Different base
dimensions are also
available on request. |
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Different base
dimensions are also
available on request. |
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antenna is completlely
painted with military
green (RAL-6414)
two-component UV
resistant paint. |
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TECHNICAL
DATA |
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Frequency
range |
66 - 88 mhZ |
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Impedance |
50 ohms |
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VSWR |
<2(DIAGR1) |
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Gain |
(DIAGR2) |
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Polarization |
vert |
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Maximum
power |
70W CW |
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Connector |
N |
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Height |
1.2 m |
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Mass of
antenna |
2.2Kg |
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Temprature
range |
-25...+55 C |
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antenna is wideband
monoploe intended for
use in the standars
frequency range from 400
to 530 MHz. |
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antenna is composed of a
mounting plate with a
coaial connector and of
a conical radome made
from epoxy - glass
composite material where
the radiating elements
are waterproof built in. |
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coaxial connector is
protected with the
washer. The antenna can
be mounted directly on
flat meyal surface and
is primarily intended
for use on locomotive
engines and other
similar vehicles. |
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Therefore its mechanical
construction is
optimised regarding high
vibrations and shocks
arising by the engine. |
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TECHNICAL
DATA |
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Frequency
range |
400 - 530
MHz |
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Impedance |
50 ohms |
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VSWR |
<2(DIAGR1) |
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Gain |
2 - 3 dBi |
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Polarization |
VER |
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Maximum
power |
100W CW |
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Connector |
N |
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Height |
180 mm |
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Diameter |
55/42 mm |
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Mass of
antenna |
0.6 Kg |
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Wind
Velocity |
180 km/h |
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Temperature
range |
-40...+70 C |
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Irie and
© Nick Mabe 2006 all rights
reserved.