[MRCA] Antenna Advice OCF Dipole

[Gene Smar]

Mark:

     On the higher freqs the OCF dipole (or any wire antenna for that 
matter) will sprout multiple nodes in the antenna pattern that even show 
gain over a dipole.  So you'll experience remarkable performance from say 
20M up to 6 given the gain in the pattern, although the nulls in the pattern 
will be deep.  On 40 the antenna will probably exhibit a four-leaf clover 
pattern at 45 degrees and multiples thereof.  Given the antenna's height 
above ground (~1/8 WL) on 80M you'll have an NVIS antenna that radiates 
mainly straight up.  Not bad for local (out to about 500 miles or so) 
contacts but not a barn burner for DX.

     You might want to try downloading EZNEC software and modeling the 
radiation pattern to convince yourself this will be the case.  But I'm 
pretty sure you'll have multiple nodes with gain on the higher freqs.


73 de
Gene Smar  AD3F


----- Original Message ----- 
From: <n1jzv at midmaine.com>
To: <mrca at mailman.qth.net>
Sent: Friday, July 12, 2013 10:12 PM
Subject: [MRCA] Antenna Advice OCF Dipole


>I have a 6-80m ocf dipole 30' above ground pretty much flat top with the
> long end pointing north short south broadside E/W.  Is this the best
> orientation for myself here in Maine?  Thanks.
>
> Mark
> K1HF
>
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