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home | newest check | boards | help index | log | ps | userlogin | send sysop | slog | status forward | bcm news | users | version | remove cookieG8MNY > TECH 11.05.24 18:02l 56 Lines 2176 Bytes #7 (0) @ WW BID : 7449_GB7CIP Subj: 70cm Collinear Path: JH4XSY<N3HYM<K5DAT<PY2BIL<LU9DCE<LU4ECL<I0OJJ<GB7CIP Sent: 240511/0856Z @:GB7CIP.#32.GBR.EURO #:7449 [Caterham Surrey GBR] $:7449_GB From: G8MNY@GB7CIP.#32.GBR.EURO To : TECH@WW (8 Bit ASCII graphics use code page 437 or 850, Terminal Font) Stacked 5/8 Wave Co-linear For 430-440 MHz (Comment added Nov 05) アアア Element->アアア アアア トトトトトトトト>ツソレ<ト-Braid ナナ<トトトソ 7mm__ロロウ アアア ウ アアアア Element->アアア Shirt Buttons ウ アアアア 5/8 wave アアア ウ アアアア ナナ<トトトトル ウ アURア E アアア 241mm アアアア L Element->アアア ウ ア43ア E アアア ウ アアアア M <---162mm--->レチソ<--"N" Socket ウ アアアア E ヘヘヘヘヘヘヘヘヘヘヘヘヘエ テヘヘヘヘヘヘヘヘヘヘヘヘヘ ウ ___アアアア N Ground Plane タトル Ground Plane 7mm ウロロ T トトトトトトト>ルタル The Elements are made from UR43 or RG58\U (not RG58\CU) coax. You MUST use 50 ohm coax with a solid copper centre. Use plastic or fibre glass as a tube cover for the elements but do not use grey tube as this could have a carbon conductive content. There are four 5mm dia ground planes that must have a contact with the outer body of the "N" connector socket. You can "Stack" as many elements as you wish within reason, trim 10mm off the last element then check V.S.W.R. Repeat until resonance is achieved. Place the tube cover over the elements w checking V.S.W.R. You should be able to reach a good resonance around 1 to 1. Use the holes in the shirt buttons as an isolator between the element solder connections, the elements are connected inner/outer, outer/inner at each end of the element "Crisscrossing" to the next, once completed use some strong fishing nylon line around the last element to pull all the elements straight then fix the line over the top of the tube with a waterproof cap. 73 de Alan 2E1ESY @GB7NND.#23.GBR.EU ------------------------------------------------------------------------------ Here on HR1BY I tried this one, it works wonderfull, a repeater, i could not acces before, I now do it with even less power. 73 - WOLF, HR1BY @ HR1PAQ Why Don't U send an interesting bul? 73 De John, G8MNY @ GB7CIP
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