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G8MNY > TECH 05.08.23 10:31l 64 Lines 3091 Bytes #999 (0) @ WW
BID : 51588_GB7CIP
Read: GUEST
Subj: 23cm 65el Loop Yagi Info
Path: IW8PGT<IZ3LSV<DB0ERF<OE6XPE<UA6ADV<CX2SA<N9PMO<VE3KPG<GB7CIP
Sent: 230714/0700Z @:GB7CIP.#32.GBR.EURO #:51588 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (Updated Sep 06)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
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65 el loop yagi dimensions
Element Length Cumulative Element Length Cumulative
mm spacing mm spacing
Reflector1 140x115 mesh 0 d31 195 2594
Reflector2 254 79 d32 195 2684
Driven 232 103 d33 195 2775
d1 215 131 d34 195 2865
d2 215 152 d35 195 2959
d3 215 198 d36 195 3046
d4 215 243 d37 195 3136
d5 215 275 d38 195 3227
d6 215 333 d39 195 3317
d7 215 424 d40 195 3408
d8 215 514 d41 192 3498
d9 215 605 d42 192 3589
d10 215 695 d43 192 3679
d11 215 785 d44 192 3769
d12 215 876 d45 192 3860
d13 208 966 d46 192 3950
d14 208 1057 d47 192 4041
d15 208 1147 d48 192 4131
d16 208 1238 d49 192 4222
d17 208 1328 d50 192 4312
d18 208 1418 d51 192 4402
d19 208 1509 d52 192 4493
d20 208 1599 d53 192 4583
d21 200 1690 d54 192 4674
d22 200 1780 d55 192 4764
d23 200 1871 d56 191 4855
d24 200 1961 d57 191 4945
d25 200 2051 d58 191 5035
d26 200 2142 d59 191 5126
d27 200 2232 d60 191 5216
d28 200 2323 d61 191 5307
d29 200 2413 d62 191 5397
d30 200 2503 d63 191 5487
Length specifies the distance between holes prior to bending the elements into
loops. The driven element is split at the top (furthest away from the boom) &
fed with coax which passes through the boom via a hole a few millimetres behind
the driven element.
Boom diameter = 12.7mm
Driven Element = 4.76mm x 0.71mm copper strip.
All other elements 4.76mm x 0.71mm aluminium strip.
Why don't U send out an interesting bul?
73 De John, G8MNY @ GB7CIP
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