This DC stop prevents DC voltage from being shorted in power over coax systems, where mast head amplifier is not used.

Typically the mast head amplifiers are fed power over coax via Bias T, feeding power to multiple antennas in 900Mhz and 1.8GHz bands. This DC stop is needed if power is fed up the tower without using amplifier at any antenna.

The unit provides excellent loss & VSWR characteristics with high isolation between the two ports.

Specifications

Electrical: 
                           Operating Range                 800 - 2170 MHz
                           Impedance                           50 Ohm 
                           Max input Power                  750 Watt
                           VSWR                                    <1.1:1     (800~2000)
                                                                                <1.2:1     (2000~2170)
                           Insertion Loss                      <0.1dB   (800~2170)
                           Isolation                                                >70dBc
                           Intermodulation (2x20w)    IM3:-160dBc
                           Operating Temperature     -40 + 70 deg C

Mechanical
                           Connectors                           7/16 DIN male/female
                           Dimension:                           2.8 x 1.4 x 1.3 inch (70 x 35 x 32 mm) 
                           Weight:                                  11.6 Oz. (330 g)
                           Material
                           Body                       Brass (Suco plated)
                           Center Contact     Beryllium Copper (silver plated)
                            Insulator                             Teflon