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An absorbing Filter
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)
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