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G8MNY > TECH 02.09.03 22:16l 20 Lines 438 Bytes #999 (0) @ WW
BID : 13648_GB7CIP
Read: DB0FHN GUEST OE7FMI
Subj: 13cms 2 Lambda Slot
Path: DB0FHN<DB0RGB<DB0MRW<OK0PPL<DB0RES<ON0AR<EB2BJX<GB7YKS<GB7SYP<GB7COV<
GB7YFS<GB7CIP
Sent: 030902/0900Z @:GB7CIP.#32.GBR.EU #:13648 [Caterham] $:13648_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
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
/QSL
73 De John, G8MNY @ GB7CIP
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