This is a Millitech Wireless Link Loop ( WLL )   P/N = XCV31-UB1H-R2

The cover was lifted only for the purpose of photograph

Runs off of -48 volts fed into the output IF connector

A partial list of contents of this box:

1- parabolic antenna  / feedhorn

2- diplexer - transmit and receive is set up to occur similtaneously

3- transmit amplifier / upconverter - from appearances it probably goes about 1 Watt transmit power but this is only a guess

4- receive amplifier / converter

5- IF board

This is an excellent piece of equipment for alot of different applications.  Possible to use for a really good moving target doppler radar where you can hear the audio such as the one you can listen to here: http://www.emarket-usa.com/anuncio-43838991.html  

At 20GHz you would get twice the frequency due to the same velocity of motion thus making this unit superior in detection