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From: tierney@fortune.UUCP (Charles Tierney)
Newsgroups: net.politics
Subject: Re: Phased Array Radar
Message-ID: <5042@fortune.UUCP>
Date: Fri, 22-Feb-85 17:34:38 EST
Article-I.D.: fortune.5042
Posted: Fri Feb 22 17:34:38 1985
Date-Received: Sat, 23-Feb-85 05:20:26 EST
References: <134@rtech.UUCP> <29200205@uiucdcs.UUCP> <185@u1100s.UUCP>
Organization: Fortune Systems, Redwood City, CA
Lines: 37

> In article <29200205@uiucdcs.UUCP> renner@uiucdcs.UUCP writes:
> > 
> > The 1972 ABM treaty prohibits deployment of anti-ballistic missile
> > systems.  The Soviets are building a large phased-array radar system in
> > Siberia -- very nice for tracking ICBMS; ...
> 
> Actually, as I understand it, this PAR is not in Siberia, and that is the
> problem.  It is OK to deploy PARs looking outward from the frontiers
> of the country.  The US has many (see recent Sci. American article).
> Point of intrest, ours have a field of view of about 120 degrees,
> well into the interior.
> 
> Anyone out there who can clear this up?
> 
Yes, the rule from the ABM treaty is (paraphrased) 
You may build Phased Array Radars which look OUT of your country.
You may not build them when they look INTO your country.
	Except:  each side is allowed one (1) ABM site.  Ours
	was the Safeguard/Sprint site near Minot, North Dakota.
	Thiers is around Moscow.

The U.S. has three (maybe four?) phased array radars looking out for 
submarine launched ballistic missiles.  One is in Cape Cod (subject of 
the Scientific Am. article), one is on the North West Coast (where??),
one is in Florida (at an Air Force Base down there), the questioned 
fourth would be around San Diego (my opinion).

They have a field of view of 120 degrees, however, look at some maps
and you see this area is open ocean.

An interesting point is the Navy Missile Test Tracking Ship:
this is a big ship with a huge phased array (brother to the land 
based radars) mounted on a turntable.  It is used to track Soviet
missile shots.  The boat sure looks funny though!


"Enough of this Warmonger garbage already!"	- Charlie Tierney