Fellow TowerTalkians --
And you know who you are. I am extremely pleased to announce the
availability of the first ever Mast, Antenna and Rotator Calculator - the
Ever put antennas on a mast and wondered if it was strong enough? Ever
suffered a BENT mast? Have you tried to find out how to calculate the
bending moment of your antenna system? I'll tell you - it isn't easy and the
information isn't easy to come by. Wind forces are tremendous and with the
introduction of the MARC Program, you can tell in an instant if you can sleep
nights in the next big blow or if you have a reason to worry.
MARC will let you put in any windspeed from 70 to 120 MPH; it will
allow you to have up to six antennas on the mast with any spacing; and you
can either look up an antenna in the antenna table or it'll calculate the
square footage of any antenna for you. It will tell you the mast size, wall
thickness and tensile strength that you need for your installation.
In addition, it'll even make rotator recommendations based on the
Effective Moment of your array.
This is an invaluable planning tool for any station owner and it is
priced at only $9.95. Add $2.55 for s/h and you can add it to your library
of valuable resources. Orders can be sent to TOWER TECH, Box 572,
Woodinville, WA, 98072.
73, Steve K7LXC
TOWER TECH -- professional tower supplies for amateurs
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Administrative requests: towertalk-REQUEST@contesting.com