Frequently Asked Questions


What is a balun?

A balun is a device used to connect two different cable types and connectors.

The word “balun” is derived from the words balanced and unbalanced.

Balanced signals are carried by twisted pair cables. One conductor carries a positive signal and simultaneously the other conductor carries a negative signal. The signals on the two conductors are equal in amplitude with respect to ground.

Unbalanced signals are carried by coaxial cables. One conductor, the core, carries the signal and the other conductor, the cable shield, is connected to ground. The signals on the two conductors are unequal with respect to ground.

A balun also provides impedance transformation and matching. Twisted pair cables and coaxial cables have different impedance characteristics. Twisted pair is typically 120 ohms and coaxial cable is typically 75 ohms. Impedance matching ensures maximum power is delivered across the connection.

In summary, a balun is a device used to connect a balanced line to an unbalanced line, convert electrical signals and provide impedance transformation.

What are my payment options?

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Tekmos Communications Ltd.
Unit 6
80-81 Walsworth Road
Hitchin
Hertfordshire
SG4 9SX
UK

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When ordering goods from Tekmos Communications Ltd. for delivery overseas, your goods may incur import duties and or taxes which are levied when the goods reach your country. Any additional charges for customs clearance must be borne by you; we have no control over these charges and cannot predict what they may be. Customs policies vary widely from country to country. Please contact your local customs office for further information.

Harmonisation - TARIC Code of Tekmos products is 8544 421000.