From: jim bell <jimbell@pacifier.com>
Date: Mon, 30 Sep 1996 03:05:41 +0800
To: Gary Howland <gary@systemics.com>
Subject: Re: crypto anarchy vs AP
Message-ID: <199609291655.JAA28141@mail.pacifier.com>
MIME-Version: 1.0
Content-Type: text/plain


At 04:21 PM 9/29/96 +0200, Gary Howland wrote:
>jim bell wrote:
>>  
>> On a related issue, GPS (global-positioning system) contains a de-accurizing
>> mis-feature called S/A, which adds a little error to the location as
>> detected by a receiver.  Ostensibly, it was added so that this could be
>> turned on in wartime, to deny the enemy the ability to make 10-meter fixes.
>> Turns out that it was kept on all the time, probably because if it WASN'T it
>> would become politically impossible to de-accurize the system even in wartime.
>
>Apparently S/A (selective availability) was turned *off* during the Gulf
>war.  "Military Intelligence" in action.

Yes, because of lack of enough S/A-capable military receivers... They were 
stuck with using the commercial, off-the-shelf kind.


Jim Bell
jimbell@pacifier.com