On Wed, 06 Aug 2003 07:20:16 GMT, Guy Alcala
wrote:

Removed and replaced by the forward antennas (and maybe the pre-amps) for
the RWR in the Air Force a/c.

Late 1966 F-4C APR-25 install had the forward pre-amps just behind the
antennas, and then later in the F-4D APS-107 had some under the radar
package and later moved out to the bottom sides and to the rear on the
donkey.....

I seem to remember something about the IR package on the radar was
replaced with the CW package for the sparrows. So the IR would have
been long gone before the APR-25 install?

The APS-107D was an excellent, versatile system. Much better launch
detect and on some aircraft they could be switched to the forward
antennas so the pod jamming didn't bother as much. Just glad I didn't
have to work on them six months after they were installed and all the
little rf cables had come apart!G