Universal Magnetic Balun UMB T2FD

Universal Magnetic Balun UMB T2FD

This is a receiving antenna Balun with a 9:1 impedance ratio, and an integral 500 ohm 5W Thick Film termination resistor.

This Balun is specifically designed to simplify the construction of the T2FD antenna. Using this Balun removes the problems faced by the constructor of having to wind the Balun and provide a separate termination resistor and encapsulate the two assembles.  A high power termination resistor is used, because it is less likely to be damaged by electrical storms. 

The feeder winding is also isolated from the antenna to reduce mains borne noise and antenna/feeder interaction. The T2FD antenna uses a coaxial feeder cable without an antenna tuner. Low noise performance is assured because there is no antenna return path to mains earth. This reduces Mains Borne Noise such as TVs, etc.

The T2FD solves the problem of providing the antenna/feeder impedance match outside the local interference zone so that the feed to the receiver is free from interference.

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