[NLRS] 2M Big Wheel antenna info

[Baker, Donn B]

I'd be a little skeptical of that gain figure...
Remember, a halo is maybe -2 dBd. (You have to fill in the nulls off the end of a dipole.)
The BW is maybe +1.5 dBd.  Stacking two, maybe another +2 for a total of maybe +3.5 over a halo, but your only +1.5 to +2 dBd.  But they work better than a halo.

I _think_ the "dwtulsa" 2m antenna was tested at CSVHFS this past summer.  It did well, but I don't remember the numbers and don't have access to any of the data here.  It was well made: good workmanship and rugged (elements heli-arc'd if I remember correctly).

73 Donn
WA2VOI/0

-----Original Message-----
From: nlrs-bounces at mailman.qth.net [mailto:nlrs-bounces at mailman.qth.net] On Behalf Of Glen Overby
Sent: Monday, January 08, 2007 11:11 AM
To: nlrs at mailman.qth.net
Subject: RE: [NLRS] 2M Big Wheel antenna info




I googled around and the only pictures I found of big wheels looked like a 3-leaf clover.  It didn't look bad.  After seeing the claim of '5.5db over a halo' (www.dwtulsa.com), I'm interested!

Glen
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