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Production of a matching balloon for video surveillance


The twisted pair cable is laid to the surveillance camera. After replacing the camera with an analog image, it began to double.

We are looking for a way to deal with the so-called reflection.
Production of a matching balloon for video surveillance

I got here such a scheme (balun) matching device. The dots in the diagram indicate the beginning of the winding.
We will conduct tests.

It will take a couple of meters of twisted pair. Two connectors for video input. Thermogun and soldering iron.
Two rings from an unnecessary computer motherboard. A few details.

We take the rings from the old motherboard. We twist a twisted pair three times.
We make a transformer. We wind 20 turns.

We make two transformers.


Putting the circuit together.

We isolate soldered places by a thermoshrinkable tube.

We seal the whole circuit with hot glue.


We connect ready-made devices. One balloon to the camera, the other to the DVR.

The effect is achieved.
The tests were successful.
It can be applied in practice.
Issue price 0.25 kopecks for electricity

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