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Old November 1st 08, 06:51 PM posted to rec.radio.amateur.antenna
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On Sat, 1 Nov 2008 11:11:32 -0400, "Ed Cregger"
wrote:

I was thinking of the Aegis class warships.


See: AN/SPY-1. 4 panels with 4 megawatts in S-band.
http://en.wikipedia.org/wiki/AN/SPY-1
http://www.globalsecurity.org/military/systems/ship/systems/an-spy-1.htm
https://wrc.navair-rdte.navy.mil/warfighter_enc/weapons/SensElec/RADAR/anspy1.htm

Lots of fun when the beam hits an adjacent vessels antenna farm and
toasts everything connected to it.

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Jeff Liebermann
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http://www.LearnByDestroying.com
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Skype: JeffLiebermann AE6KS 831-336-2558
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Old November 4th 08, 08:09 AM posted to rec.radio.amateur.antenna
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"Jeff Liebermann" wrote in message
...
On Sat, 1 Nov 2008 11:11:32 -0400, "Ed Cregger"
wrote:

I was thinking of the Aegis class warships.


See: AN/SPY-1. 4 panels with 4 megawatts in S-band.
http://en.wikipedia.org/wiki/AN/SPY-1
http://www.globalsecurity.org/military/systems/ship/systems/an-spy-1.htm

https://wrc.navair-rdte.navy.mil/war...lec/RADAR/ansp
y1.htm

Lots of fun when the beam hits an adjacent vessels antenna farm and
toasts everything connected to it.



It happens but it's not supposed to. A standard rule is that an Aegis ship
needs to "sector out" other vessels in company when they are within a
specified distance -- I forget the number. Among the more vulnerable
equipments are the EW receivers.

The AN/SPY-1 sends a pseudo-random pulse train. When you hear one on a
suitable receiver, it sounds like corn popping. No joke.

"Sal"


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Old November 11th 08, 06:10 PM posted to rec.radio.amateur.antenna
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Sal M. Onella wrote:
"Jeff Liebermann" wrote in message
...
On Sat, 1 Nov 2008 11:11:32 -0400, "Ed Cregger"
wrote:

I was thinking of the Aegis class warships.

See: AN/SPY-1. 4 panels with 4 megawatts in S-band.
http://en.wikipedia.org/wiki/AN/SPY-1
http://www.globalsecurity.org/military/systems/ship/systems/an-spy-1.htm

https://wrc.navair-rdte.navy.mil/war...lec/RADAR/ansp
y1.htm
Lots of fun when the beam hits an adjacent vessels antenna farm and
toasts everything connected to it.



It happens but it's not supposed to. A standard rule is that an Aegis ship
needs to "sector out" other vessels in company when they are within a
specified distance -- I forget the number. Among the more vulnerable
equipments are the EW receivers.

The AN/SPY-1 sends a pseudo-random pulse train. When you hear one on a
suitable receiver, it sounds like corn popping. No joke.


Almost all modern radars send some sort of PN coded pulse (e.g. a Barker
code) to be used in pulse compression so the peak/average power ratio is
limited. A few radars use linear FM chirps.
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