Instructables

Easy External Scanner Antenna for Police, Fire, and EMS

video Easy External Scanner Antenna for Police, Fire, and EMS
Here is an easy little project for an external scanner antenna with a few parts from the junk bin.  This antenna is fine for somewhat local stations; for distant station scanning a tuned J-Pole or dipole antenna would work much better.  And of course, the higher you can get this little guy up the better.  I may try putting this antenna way up in a tree sometime and see how it performs.  

Thanks for taking a look.
Good job...the only change I would make is to put your new antenna "above" the metal mast, this would make a big difference, I would even get it at least 2 feet above the other antennas. The metal mast changes your signal strength even on the receive side.