MMDS Transmitter



       Antenna MMDS :

The Outdoor MMDS Transmitter is intended for use in the MMDS, WI-FI and other system operating in 2300 to 2700 MHz frequency range . It is available in configurations of 20, 50, 100 Watt. The transmitter supports all modulation schemes (both analogous and digital ones). It features an RF Muting, which engages whenever IF signal at the Transmitter input becomes lower than 
the IF threshold level. A Thermal Shutdown feature, which is incorporated for the transmitter protection, disables the transmitter whenever its base plate temperature exceeds a temperature limit. An overpower shutdown feature disables the amplifier whenever the RF output power is detected to exceed an overpower limit. Built-in automatic gain control system provides nominal value of output signal. The transmitter construction consists of 2 modules: the transmitter itself located near transmitting antenna and power module which supplies power to the transmitter and its remote control unit. The remote control unit provides monitoring of the transmitter statuses. It display status of input and output signal; local oscillator; power amplifier; thermal and overpower shutdown;
cooling fan.
                                          Technical parameters:

         • Output power at 1 dB gain compression          25W/50W/100W
          Output frequency range                                  2300-2770 MHz
          Bandwidth                                                              200 MHz
          Input frequency range                               270-470/470-670 MHz
          Input level                                                     -20 dBm to -10 dBm
          Frequency stability                                                  10Е-6
          Out-band suppression                                           > 60 dB
          Compatible Modulation Schemes      QPSK, 64/256QAM, COFDM, AM, FM
           • IF Input impedance and connector                  75 Ohm, F- type female
    • RF Output impedance and connector               50 Ohm, N- type female
    RF Monitoring Output                                       50 Ohm, N type female
    Operating temperature range                                  -35...+40° С
    Relative Humidity                                                          100%
    Power Consumption                                              60/300/500 VA
    Cooling                                                    forced air, temperature control 
     Injector Powering                                                      220 VAС
    Transmitter Powering                                                  48 VDC
    Transmitter dimensions                                       600х600х320 мм
                                                          • Power module dimensions                                          Rack 3U
        Transmitter MMDS
                                            Аntenna :
The MMDS antenna is intended for use in the MMDS and WI-FI systems. The antennas are available in various models. The antenna radiation pattern in horizontal plane can be circular or sector. The radiation pattern in vertical plane can be of 3 or 6 degrees depending on antenna gain. The antenna polarization is vertical or horizontal.

                                  Technical parameters:
    Gain                                                              10/13 dB
                                                                H. plane beamwidth                            120/240/360 degrees      
                                                               • E. plane beamwidth                                    3/6 degrees
                                                               • Polarization                                     linear (vertical or horizontal)
                                                               • Radiation Pattern Flatness                             <1dB
                                                               • Input impedance and connector            50 Om N type female
                                                               • Length                                                       1500/3000mm
                                                               • Diameter                                                            160mm


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