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G8MNY > TECH 20.09.03 12:28l 46 Lines 1391 Bytes #999 (0) @ WW
BID : 16513_GB7CIP
Read: DB0FHN GUEST OE7FMI
Subj: 6m 8el Yagi
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<DB0EA<DB0SM<DB0ACC<ON0RAT<ON0BEL<ON0AR<
ZL2BAU<VK7AX<GB7YKS<GB7SYP<GB7COV<GB7COV<GB7CIP
Sent: 030920/0957Z @:GB7CIP.#32.GBR.EU #:16513 [Caterham] $:16513_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
To : TECH@WW
Modello 06M8-ZIZ 50.000 50.150 50.300 MHz
diameter of each element = 22mm. isolated from boom.
DISTANZA DA RIF. lunghezza elemento
RIF 0.0 2982
RAD 632.0 2840
DIR1 1108.1 2716
DIR2 2333.6 2647,6
DIR3 4079.9 2584
DIR4 6229.4 2523,8
DIR5 8423.3 2561
DIR6 10160.0 2474,4
Front/Back >29 dB, Gain 11.11 dBd (13.25 dBi) ,Z = 28.1 ohm
dipole
ÄÄÄÄÄÄÄÄ ÄÄÄÄ
ÚÄÁÄ¿³
Ú³Âij´
³³³ ³³³ 2x75 ohm (RG11 or RG9)
³³³ ³³³ Centre+centre
³³³ ³³³ Brade+brade
³³³ ³³³
À³ÙÄÀ³Ù
ÀÄÂÄÙ
Ú³¿
³³³
³³³ linea 50 ohm
³³³
NOTE: the lengths of the 0.750" o.d. sections have been reduced by the lengths
of the 2.4053" o.d. sections which simulate 5" x 6" x 0.375" plates.
These elements are heavy-duty (120 mph).
This design was optimized for F/R over band > 29 dB, and SWR <1.8:1, with a
mid-band free space gain of 13.25 dBi (11.11 dBd).
MATCHING: 2x75 ohm parallel coaxial cable, LENGTH 1/4 LAMBDA (99 cm.RG9 or
RG11) for R.O.S. 1:1
73 de IK0ZIZ, op. Giovanni
/QSL
73 De John, G8MNY @ GB7CIP
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