This homebrew 1.2 GHz microwave antenna is built from a 6″ household air duct and picks up a signal from an Icom R3 amateur TV repeater. The device then retransmits the signal over a longer distance. Not a lot about the construction of this giant “flashlight looking” device, but we still like the hacked efficiency of this design.

Amateur TV Receiver

(Update: The photographer asked us to remove the photo, but you can still see at the link above – pt).