User avatar
holler
High Leg
High Leg
Posts: 5270
Joined: Mon Jan 15, 2007 3:57 am
Real Name: Jeb M
YouTube Username: Blue10AEmia
Location: Rhine, Georgia
Contact: Website

Re: Federal Signals Soundproof Test Room - 1955

Mon Jan 06, 2014 11:18 pm

We have rooms similiar to that at work. The walls, floors, and ceilings are covered with pyramid shaped pieces of foam that absorb RF from high powered aircraft radars. It looks like something out of a children's nightmare.

User avatar
Jim Z
Registered User
Registered User
Posts: 2237
Joined: Tue Aug 01, 2006 1:03 am
Real Name: Jim
Location: ;) or :D are implied

Re: Federal Signals Soundproof Test Room - 1955

Tue Jan 07, 2014 12:19 am

yeah, even though they have a different job to do, RF anechoic chambers look surprisingly similar to acoustic anechoic chambers. a few jobs ago we had an RF anechoic chamber at our building; it was automotive-geared so the RF attenuation was taken care of by ferrite tiles places all over the walls and ceiling.

'cept those (4"x4") ferrite tiles were $15 each. And there were hundreds of them in that room.

User avatar
EL1998P71
Registered User
Registered User
Posts: 1623
Joined: Sun Jul 08, 2007 5:41 am
Location: Macomb County, Michigan
Contact: Website

Re: Federal Signals Soundproof Test Room - 1955

Tue Jan 07, 2014 2:59 am

When I was there on a tour, my guide then said that the one they have now came from the blue island building.
It still had the siren panels mounted on the outside.
Proud Owner of too many sirens, lightbars, civil defense items, and diecast cars

Return to “Main Outdoor Warning Sirens Board”

Who is online

Users browsing this forum: Ahrefs [Bot] and 47 guests