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An absorbing Filter

 

 

 

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An absorbing Filter: by Igor Grigorov, RK3ZK

At ANTENTOP - 2, 2003 it was described a trap filter on main wires. However, the filter cannot be used at a high power or at super- broad bands transmitters. One reason is that it is impossible to retune a trap at a wide frequency range, other reason is the trap filter does reflection of the high-frequency energy back. So, wire to the filter can radiate also the high- frequency energy goes to transmitter and does additional interferences. So, in some case a trap filter can do more trouble the use.

 

PDF file, 115 KB (ANTENTOP-02-2004, p.: 73)

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Contents for AntenTop 02- 2004

 

 

 

 

 


 

 

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Antenna Practice TV Antennas Propagation QRO HF Tube Amplifiers
136 kHz- Antennas Coaxial cables LDE QRO HF Transistor Amplifiers
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Last Updated:

March 29, 2016 8:16