In February’s ChainHomeHigh: United States Of America – AN/ZPY-4(V)1 Contract Posted byThomas Withington January 9, 2013 Leave a comment on In February’s ChainHomeHigh: United States Of America – AN/ZPY-4(V)1 Contract Share this:TwitterFacebookLinkedInLike this:Like Loading... Published by Thomas Withington Thomas Withington is a writer and analyst specialising in electronic warfare, radar and military communications. View more posts