Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

LF: antenna calculation..help needed

To: <[email protected]>
Subject: LF: antenna calculation..help needed
From: "Dick" <[email protected]>
Date: Wed, 13 Sep 2006 19:06:26 +0200
Delivered-to: [email protected]
Reply-to: [email protected]
Sender: [email protected]
Hello all,
 
It's off topic, but as I can't find it on the net I'll ask it here.
 
I want to modify an old 27MHz CB antenna to an quarter wave vertical for 30m (10.14MHz)
 
Diameter is tapering from 26 to 15mm.
 
Question: what length should it have? I suppose 0.25 wavelength x 0.96 or so...
 
Sofar not a big problem, but as I will use 36 radials direct on the ground, it's radiation resitance will be
around 36Ohm.
 
To match this to 50Ohm I can use a series capacitor, but what value this should be??
 
Who can tell me?
 
73
 
Dick, pa4vhf
<Prev in Thread] Current Thread [Next in Thread>