• Head end
   

• Digital TV
  modules

• Cable network
  elements

• TV signal
  coding

• CCTV (Video surveillance)

• Measuring
  devices

• Over-the-air TV equipment

• Transmit. FM, MMDS, MITRIS

• Digital TV
  station

• Ethernet
   

• Optical
  equipment

• Specialized
  equipment

• Power supply
  devices

• Multimedia
  systems

• TV range
  transmitters

• Radio relay
  stations

• Units and modules for TV centres

ABDA 1.9 Antenna bidirectional Ethernet amplifier

Fig. 1 - The appearance of ABDA 1.9/1 without built-in band pass filter


Fig. 2 - The appearance of ABDA 1.9/1 with built-in band pass filter

An antenna bidirectional amplifier DECT is used together with DECT base stations operating in a semi-duplex mode and is intended for increasing of operation distance.
Energizing is effected with the help of a power supply PS-106/12-1 (it is not included into a delivery set).
Delivery of the DECT amplifier with a band pass filter is possible. It enables operation in the condition of strong noises from GSM signals. Filter features are given in fig.4.

Fig. 3 - Structure scheme of ABDA 1.9/1

Fig.4 - Amplitude frequency characteristic of band pass filter