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  1. DaveAA1A

    Patch antenna at 433 MHz

    I don't know where you are presently at with this project, but have you thought of a helical ( circular polarized ) antenna since you have 2' of space under the flooring?? Regards, Daveaa1a
  2. DaveAA1A

    462Mhz Planar Antenna Help

    If you are still active with this project, have you investigated the idea of using a UHF FET front end and building an E-probe in that small area? Always a good way to get a smaller but efficient antenna. Regards, Daveaa1a
  3. DaveAA1A

    Basic Antenna Question

    cam, DBi alludes to a radiator which illuminates equally in all directions. Equal apeture... The 'i' stands for Isotropic, the closest demonstration being a lightbulb but even the base keeps it from being a perfect ISOTROPIC radiator... A simple dipole has some gain over a isotropic because it...
  4. DaveAA1A

    base loaded whip

    I think you can accomplish your goal by keeping the loading inductor at a small diameter and squeeze/lengthen it ( coil ), if not adding or subtracting turns... The effective height 'G' will remain about the same... Also think about top loading @ 6ghz., no problem... TNX Dave AA1A
  5. DaveAA1A

    Looking for manual 2-posn coax switch - THREE pole

    BLL, Think about 3 rotary ( manual ) coax switches cobbed together and modified with one shaft extending down through the wafers of your new 3 layer package.. Yes?? 73s de Dave AA1A

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