BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Junior Lolley <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Tue, 4 Jan 2011 16:38:37 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (26 lines)
Colin, thanks for this info.


Junior Lolley KG4itd
Liberty County E. C.

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of colin McDonald
Sent: Tuesday, January 04, 2011 1:09 PM
To: [log in to unmask]
Subject: more on loops and quad loop formulas

for general interest:
the formulas for building a directional antenna using loops, or what we
typically refer to as the quad antenna is as follows:
for the reflecter: 1030 divided by frequency
driven element: 1005 divided by frequency
first director: 975 divided by frequency

I believe all additional directors are calculated by reducing the length by
5 percent.

73
Colin, V A6BKX

ATOM RSS1 RSS2