Login: GUEST @ JH4XSY.14.JNET1.JPN.AS [Tsuchiura]
home | newest check | boards | help index | log | ps | userlogin | send sysop | slog | status forward | bcm news | users | version | remove cookieG8MNY > TECH 04.07.25 16:13l 22 Lines 478 Bytes #9 (0) @ WW BID : 36028_GB7CIP Subj: 13cms 2 Lambda Slot Path: JH4XSY<N3HYM<K5DAT<GB7BED<GB7JED<GB7CIP Sent: 250704/0708Z @:GB7CIP.#32.GBR.EURO #:36028 [Caterham Surrey GBR] From: G8MNY@GB7CIP.#32.GBR.EURO To : TECH@WW For a 2 lambda slot, with both ends closed with conducting disks, with coaxial feeder to midpoint. for 2320 MHz slot length 280 mm slot width 3 mm tube dia 19 mm by 18 swg (0.75in) The impedance at the feed point is 200 ohms You need to construct a suitable balun. For more details refer to Microwave Handbook vol 1 , page 4.44 onwards. 73, Pete G6KUI Why don't U send out an interesting bul? 73 De John, G8MNY @ GB7CIP
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