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G8MNY  > TECH     10.12.25 19:17l 45 Lines 1562 Bytes #3 (0) @ WW
BID : 46914_GB7CIP
Subj: 70cm 8el Yagi
Path: JH4XSY<N3HYM<GB7YEW<GB7CIP
Sent: 251210/1011Z @:GB7CIP.#32.GBR.EURO #:46914 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : TECH@WW

(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
                  ﾚﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄｿ
                  ｳ 70cms 8 ELEMENT YAGI BEAM ｳ
                  ﾀﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾙ
  Hole to Hole Spacings                    Element Length
                               ﾉｻ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 337mm
                 167mm >       ｺｺ
                          ﾍﾍﾍﾍﾍｹﾌﾍﾍﾍﾍﾍ   < 310mm  { DRIVER }
                 77mm  >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 289mm
                 125mm >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 289mm
                 146mm >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 283mm
                 182mm >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 283mm
                 191mm >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 277mm
                 247mm >       ｺｺ
                          ﾄﾄﾄﾄﾄｶﾇﾄﾄﾄﾄﾄ   < 277mm
                               ﾈｼ
                             FRONT

   Boom Length = 1.48 m.  Boom dia = 15mm x 15mm (square).

    All Element dia = 12mm.  Driven Element = Folded Dipole

     This Yagi should not need a balun as it will resonate
                        under it's own merit.

The above design has not just been drawn by myself, I have constructed this
antenna a number of times & it WILL work and a V.S.W.R of less than 1 to 1.2
can be achieved.

73 de Alan 2E1ESY  @GB7NND.#23.GBR.EU


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP


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