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PDS electronics - accessories and parts for mobile communication technology
The BT20-CT4 version is useful for OUTDOOR installation like hill areas, small valleys, countryside, resorts etc. It’s required: - good signal level on input side; - efficient shielding condition between input and output antennas, otherwise the system cannot operate and makes oscillations, with possible interferences on operator traffic. After installation, verify the correct operating with spectrum analyzer instrument. Available several cascade systems. Installation only by qualified and authorized personnel. To obtain a good shielding between input and output, we suggest to use EXTENSION COAX CABLES PR10- 20-33 available on option. Electromagnetic Field reduction The using of MICROSET repeaters decreases drastically the hand-set telephone output power, saving battery life and avoiding dangerous expositions to electromagnetic fields (MICROSET patent) Capacity channels and operating field coverage BT20 basic model has European test approval for 10 communications also from different operators; but it is a wide band system so that, with favourable signal and environmental conditions, it can support rather unlimited number of communications. Indoor coverage With good level of outside signal it is possible reaching for inside coverage up to 10.000 square meters (33.000 square feet) on 900MHz band. PATENT PENDING ALL RIGHTS RESERVED. Mod. BT20-CT4 GSM 900MHz Outdoor installation SINGLE PROVIDER - OUTDOOR INSTALLATION WIDE COVERAGE ANGLE (up to 180°) WARNING: INPUT MUST BE SHIELDED FROM OUTPUT SIDE, IF NOT IT DOESN’T WORK USEFUL FOR: SMALL VALLEYS COUNTRYSIDE RESORTS Kit BT20-CT4 delivery parts: two input hi-gain directional antennas LOG10 two output hi-gain collinear antennas CT4 for wide coverage (up to 180°) 10mt coax cables with assembled connectors mast preamplifier main amplifier switching power supply 230VAC. TECHNICAL SPECIFICATIONS DOWN LINK: Frequency 935-960 MHz / Gain 90dB UP LINK: Frequency 890-925 MHz / Gain 60dB INPUT LEVEL: -55dBm max INTERMODULATION: better than -36dBm SPURIOUS: -55dBm span 2MHz bw 30KHz HARMONICS: better than -36dBm up to 12,5 GHz OUTPUT POWER: +10dBm +/- 2dB (low power device) OPERATIN FIELD COVERAGE: 5000-10000 m2 with favorable field and signal conditions OPERATING: linear class A GAIN LINEARITY: +/- 2dB at 50 dB variation CAPACITY CHANNELS: 10 communications recommended, 20-30 with good signal levels, 2 with low signal WIDE BAND SYSTEM INPUT/OUTPUT IMPEDANCE: 50 Ohm CONNECTORS: TNC female POWER SUPPLY: +10 VDC (limit 9-14 VDC) - 0.4A ENVIROMENT: -15° +45°C (limit -15° +50°C) HUMIDITY: 85% not condensate INSTALLATION: indoor (main amplifier) APPLIED STANDARDS: EN 60950-2000, ETSI EN300609-4, ETSI EN 301489-1 TEST APPROVAL: CE 0523(!) |
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