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:
Jim Shaffer <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sun, 6 Jul 2014 11:20:03 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (29 lines)
To get the half wave length in feet, use 468/f, where f is in MHZ.

The 300 / f / 2 equasion gives you the half wave length in meters.
--
Jim, KE5AL

-----Original Message----- 
From: Patrick Johnson 
Sent: Sunday, July 06, 2014 8:54 AM 
To: [log in to unmask] 
Subject: half wave length height equation 

Group,

I remember QST had an article on how to figure the optim height for a
horizontal antenna, and of course I can't find it at the moment.  I am
trying to remember the equation to figure out half wave lengths.

Does the following sound correct?

(H (in feet)=300/f (in MHz))/2 ?

With the recent conversation about verticals I want tofigure out the
optim height to hang a pair of G5RVs.

73s,

patrick

ATOM RSS1 RSS2