It will be interesting to see how he will deal with tuning.  K3ZO has a 2 or 
3-element beam at about 150 feet.  He only gets a reasonable SWR and pattern 
over maybe 30 KHz.  While it's true that a lot of DX phone operation occurs 
right around 3795, you may need to transmit anywhere from 3605 to 3850 on 
phone, 3500 to 3580 for CW, at least in DX contests.
W3LPL has an 80-meter quad of some kind, but I don't think it's rotatable. 
He also uses four-squares for transmitting on 80 and 160; they can be 
switched to several directions.  He believes that, especially on 160, 
vertical antennas are the only way to go for DX.  A couple of years ago, 
some European station had a 160-meter 3-3l3ment beam; it came down last 
winter, and apparently didn't work all that well.  For receiving, W3LPL now 
uses a small array of verticals, designed by W8JI.  They apparently work 
better than long Beverage antennas.



Lloyd Rasmussen, Kensington, MD
http://lras.home.sprynet.com
-----Original Message----- 
From: Alan R. Downing
Sent: Saturday, January 10, 2015 10:15 AM
To: [log in to unmask]
Subject: Our 80 meter yagis

Good morning all,  Here are a few numbers on the 2 element 80 meter
OptiBeams that will be mounted on a rotating 200 foot Rohn 55G tower.  The
yagis will be mounted at 93 and 200 feet.  The yagis weigh approximately 250
pounds each, and have a boom length of about 34 feet, and a turning radius
of about 42 feet.  They have a wind loading of 20 SQ. Ft.

I am giving you rough numbers because the factory specs are given in metric
measurements.  We also have a used 2 element 80 meter OptiBeam that will be
cut down for use as a 60 meter yagi which will be mounted on a separate 89
foot motorized crankup.



Hope these figures are helpful.



N7MIT







Alan R. Downing

Phoenix, AZ