[TowerTalk] mast

[K7LXC@aol.com]

In a message dated 05/01/2000 2:57:06 PM Pacific Daylight Time, 
kn9t@webtv.net writes:

> Need some help here on a source and type of 
>  3 inch mast 21 or 24 foot long to hang a kt34xa
>  and 2 ele 40 with12 foot seperation.
>  Is the steel pipe from my local industrial supply
>  2.875 OD  .276 wall  sched. 80 beefy enough ?

     Yeah, that'll probably work since your county windspeed for Putnam 
county is only 75 MPH. The MARC (Mast, Antenna and Rotator Calculator) 
Program recommends a 39,000 psi yield strength with a 0.120" wall. The pipe 
you mentioned is around 35kpsi but with that much wall it'll probably 
survive. 

     County windspeeds are under Tech Notes and the MARC Program are both on 
the Champion Radio Products website.

Cheers,   Steve   K7LXC
Champion Radio Products
http://www.championradio.com

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