Jammer  “JAM” is intended for blocking (suppression) of the signals in 890….960 MHz and 1710…1880 MHz frequency ranges. At device switching on all cell phones which are in this range beginning operates in  searching mode.

It is recommended to apply:

• in conference halls;
• in theatres, libraries, cinemas, churches, temples, in hospitals;
• on the territory of special objects;
• at schools and institutes of higher education;
• for security services (antiterrorism, blocking of listening in, «bugs» in the given range).

The system has 2 independent radiofrequency sections with two direct antennas of both GSM ranges.

The following modifications   are suggested:

JAM- Out  — operating out-of-doors. In this case the level of output power is not adjustable.

JAM- In  — operating in-doors. In this modification the level of output signal on each channel is stipulated.

JAM  P  — low-power pocket.

Delivery set: 

Unit of cell phones signal supression	1 pc
Antennas for two GSM range	2 pcs
Fastening set and cables	2 pcs
Passport, technical specification and user’s manual

SPECIFICATIONS:

Maximum output power in each range:
JAM Out-4	4W
JAM Out-10	10W
JAM In-100	Up to 100 mW
JAM In-500	Up to 500 mW
JAM In-1000	Up to 1000 mW
JAM P	5 mW

 

Range of cellular signal suppression, m
JAM Out-4	Up to 50
JAM Out-10	Up to 100
JAM In-100	Up to 10
JAM In-500	Up to 15
JAM In-1000	Up to 30
JAM P	Up to 5

 

Supply voltage, V
JAM Out, JAM In(from AC)	220
JAM P(self-contained)	9

Supply voltage, V
Channels number	2
Operating time	is not limited

Modulators are intended for carrier frequency formation and  TV-signal frequency translation (image and sound) to necessary TV- channel frequency.

Modulators are used in TV-transmitters, cable TV systems, MMDS and other systems of TV-signal transmitting.

Carries out:

• stabilization of sound and image carrier frequencies by the synthesizers based on the thermos-tatted frequency oscillator;
• forming of signal with single side band by the SAW filter;
• stabilization of output signal level;
• indication of video signal absent;
• indication of over modulation of audio signal;
• high amplitude and frequency linearity of the section;
• correction of amplitude non- linearity of power amplifier of the TV-transmitters;
• balanced input for audio signal.

SPECIFICATIONS

	Image	Sound
Frequency range	20…6C106 Hz	20…14C103 Hz
Modulation type	amplitude	frequency
Nominal level of input signal	1V(at Rinp=75 Ohms)	0,75V(at Rinp=600 Ohms)
Input signal levels range	0,5…1,5 V	0,25…1,75 V
Signal/noise ratio	60 dB	60 dB
Amplitude frequency characteristics unevenness of  video signal	±0,2 dB

Output signal to channel intermodulation products ratio	60 dB
Non-linearity of carrier frequency:
-in VHF range	± 50 Hz
-in UHFrange	± 200 Hz
Power supply	(220± 20) V
Operating temperature range	5…450С
HF signal output level at Rloading=50/75 Ohms	0,3…3 V

It is intended for TV  broadcasting  on VHF and UHF.
Transmitter provides high quality of transmitting according to international standards.
It operates in continuous mode and don’t needed service.

The transmitters are produced with following output power ranges:
   1…5 W, 5…10 W, 10…20 W, 20…50 W,
50…100 W, 100…200 W, 200…500 W,
1000 W,  2000 W, 4000 W, 6000 W.

In transmitters is carried out:
— microprocessor control;
— full control and diagnosis of all units of transmitter
— parameters set up by hand or automatic;
— automatic start up at video signal.

It is intended for the broadcasting in FM band. The system transmits stereo and mono radio  programs.Frequency synthesizer with digital indication allows the discrete  tuning with a step 25kHz. Transmitters are produced in three modifications:

«MARK-66»; «MARK-88»; «MARK-100».

Specification

Frequency range:
MARK — 66	65,8…74 MHz
MARK — 88	88…100 MHz
MARK — 100	100…108 MHz
Nominal deviation:
MARK — 66	± 50 kHz
MARK — 88	± 75 kHz
MARK — 100	± 75 kHz
Output power onthe 50 Ohms load:
MARK- XX/25	25 W
MARK- XX/100	100 W
MARK- XX/500	500 W
MARK- XX/1000	1000 W
Power consumption:
MARK-XX/25	60 W
MARK-XX/100	200 W
MARK-XX/500	1000 W
MARK-XX/1000	2000 W

Admissible VSWR of antenna	1,4
Deviation of operating frequency	± 50 Hz
Frequency response	30…15000 Hz
Spurious radiation suppression	60 dB
Coupling loss between the  channels	40 dB
Resistance of the transmitter linear low-frequency input	(600 ± 60) Ohm
Operating mode	continuos

AS Supply voltage:
MARK- XX/25, MARK- XX/100 from single phased source	80…240 V
MARK- XX/500, MARK- XX/1000 from tree phased source	220/380 V

It is intended for increasing of GSM mobile communication service zone in places with a low level.

Repeater’s using allows provide a reliable phone communication in places with impossible communication for some reason. To a category of such places are referred so-called, «shadow areas».

Repeater provides increasing of mobile communication range at line of sight of base station.

Repeater amplifies a signal and reduces risk of communication losses or interruption at the lowest signal level.

Advantages:
— decrease of a microwave irradiation of the subscriber at the cost of a power decreasing, demanded for reliable reception;
— increasing of accumulator work duration without recharging of a battery.

Delivery complete set:
— transceiver module…………………1pc.;
— antenna as «wave channel»………2pcs.;
— connecting cables.

It is possible manufacturing of antennas with a spectral radiation (reception of three operators is provided) on the customer’s request.