View of the device

Within bigger installations differences of potentials between individual parts of the antenna/cable network may cause overvoltages and surge currents effecting in sparks during making connections among them or even light electric shocks to the service staff. Sometimes such effects are the reason of unexpected damages of the equipment like amplifiers or even receivers. The solution of the problem is employing galvanic isolator units.

The example of such devices is Signal unit. It ensures full galvanic isolation, i.e. both signal and shielding paths are completely separated correspondingly from each other side of the installation. Small size and low attenuation within all 5-1000 MHz range not exceeding 1.5 dB make it a very useful item saving possible risks. The galvanic isolator should be used at the input of a building network, as well as at the points of distributing the signal to individual staircase installations.

In practice, such isolators should be used at the output of each building amplifier. Another application is to isolate the chassis of PC employing TV-tuner from the zero voltage rail of the cable system. This way a difference of potentials does not harm signal quality, as well as modern sensitive cut-outs will not switch the power network off.

Characteristics of the device: BLUE - attenuation, RED - impedance matching

Example of application