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ZL1ABS > 23CM 02.06.10 08:08l 68 Lines 2293 Bytes #999 (0) @ WW
BID : CB3748ZL1ABS
Read: GUEST
Subj: 23 Loop Yagi W3HQT
Path: DB0FHN<DB0RGB<OE5XBL<OE2XEL<OK0NHD<SR1BSZ<ON4HU<DB0RES<DK0WUE<7M3TJZ<
ZL2BAU<ZL1AB
Sent: 100602/0657Z @:ZL1AB.#06.NZL.OC #:44960 [AUCKLAND] FBB7.00i $:CB3748ZL1AB
From: ZL1ABS@ZL1AB.#06.NZL.OC
To : 23CM@WW
23cm Aerial conversions to mm Down East Microwave Loop
Yagi (now Directive Systems)
Bill Oleson W3HQT
Spacings from end of boom Circumference
1296 MHz 1296 MHz
Inches CM Inches CM
R2 0 0 9.794 24.87676
R1 3.1 7.874 9.85 25.019
DE 4.05 10.287 9.386 23.84044
D1 5.17 13.1318 8.405 21.3487
D2 6 15.24 8.405 21.3487
D3 7.78 19.7612 8.405 21.3487
D4 9.56 24.2824 8.356 21.22424
D5 10.81 27.4574 8.356 21.22424
D6 13.12 33.3248 8.356 21.22424
D7 16.68 42.3672 8.356 21.22424
D8 20.24 51.4096 8.356 21.22424
D9 31.8 80.772 8.356 21.22424
D10 27.36 69.4944 8.356 21.22424
D11 30.92 78.5368 8.356 21.22424
D12 34.48 87.5792 8.102 20.57908
D13 38.04 96.6216 8.102 20.57908
D14 41.6 105.664 8.102 20.57908
D15 45.16 114.7064 8.102 20.57908
D16 48.72 123.7488 8.102 20.57908
D17 52.28 132.7912 8.102 20.57908
D18 55.84 141.8336 7.841 19.91614
D19 59.4 150.876 7.841 19.91614
D20 62.6 159.004 7.841 19.91614
D21 66.52 168.9608 7.841 19.91614
D22 70.08 178.0032 7.841 19.91614
D23 73.64 187.0456 7.841 19.91614
D24 77.2 196.088 7.74 19.6596
D25 80.76 205.1304 7.74 19.6596
D26 84.32 214.1728 7.74 19.6596
D27 87.77 222.9358 7.74 19.6596
D28 91.44 232.2576 7.74 19.6596
D29 95 241.3 7.74 19.6596
D30 98.56 250.3424 7.74 19.6596
D31 102.12 259.3848 7.74 19.6596
D32 105.68 268.4272 7.74 19.6596
D33 109.24 277.4696 7.74 19.6596
D34 112.8 277.4696 7.74 19.6596
D35 116.36 286.512 7.74 19.6596
D36 119.92 295.5544 7.64 19.4056
D37 123.48 304.5968 7.64 19.4056
D38 127.04 322.6816 7.64 19.4056
D39 130.6 331.724 7.64 19.4056
D40 134.16 340.7664 7.64 19.4056
D41 137.72 349.8088 7.64 19.4056
D42 141.28 358.8512 7.64 19.4056
20.75 52.705
The Boom is 1.0 inch diameter & is drilled for 4-40 hardware.
All elements are 0.032 inch thick and R1 & D1-D4 0.25 inch wide. The rest
are 0.375 inch wide
The driven element is 2 3/4 (2.75 inches - 52.705 cm) of an inch tall &
fed with UT141 semi-rigid coax.
73 - Michael, ZL1ABS @ ZL1AB
G-QRP-Club nr 1065 NZART inc no 100432 OTC BATC
Message timed: 18:59 on 2010-Jun-02
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