Jim, one amazing tidbit is that the tower goes from full retraction (43
feet), to full extension (170 feet), in 29 seconds.  Interestingly, because
of slow ramp up and ramp down motor control, the antennas don't suffer any
extreme stress.

73


Alan R. Downing
Phoenix, AZ


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Jim Gammon
Sent: Thursday, March 13, 2014 7:40 PM
To: [log in to unmask]
Subject: What a tower!

Man, I need some friends like that! Bet you could just put your 
shack atop that tower thus running very short coaxes to the 
antennas.  What a "treehouse!" Jim WA6EKS

 ----- Original Message -----
From: "Alan R.  Downing" <[log in to unmask]
To: [log in to unmask]
Date sent: Thu, 13 Mar 2014 19:34:03 -0700
Subject: Re: dayton

At Dayton, be sure to check out the 170 foot Luso tower that a 
good friend
of mine bought.  It will be on display at Dayton, then 
immediately trucked
to my friend's QTH where the base will be waiting for it; all 52 
cubic yards
of 4000 PSI concrete.  The rotating substructure  will also be 
installed on
the concrete base, and ready for the crane to lower the tower 
onto it.  The
tower weighs in at 50,000 pounds.

Alan/KD7GC


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