08 January, 2011

Preselector

Today I have free time,so I adjustment for home brew preselector. It is two pole preselector. Antenna be able to select 2 antennas. Antenna 2 can use the small loop antenna. It is not enough sencivity, so antenna 2 add 2sk125 GG pre amp.
This preselector band width is about 20Khz for -6dB, If very noise condition that into this one. the noise flore to down. Very good it.

1 comment:

  1. It is very interesting in Low Band..
    tell me that effect in 160M
    de hl5bvq@hanmail.net

    ReplyDelete

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