I already done a AMOS Antenna before but I need to build another one. A bit more robust. I decided to use a N connector, a bit of plumbing.. and here is the result:
This stuff, is quite robust right now ;) .. and still have a great gain.
Please note that there is some new AMOS antenna design ;)
Check out http://yu1aw.ba-karlsruhe.de/vhf_ant.htm