[Mobile-Portable] Mobile Antennas

[W6OAL at aol.com]

Walt,

    You're correct. If you are using a vertical (common quarter wavelength) 
the Brewester angle is going to be quite great. For a dual bander you might try 
a "J" for 2M which will work OK also on 70cm. This will put your main lobe on 
the horizon as it is essentially a dipole. As for gain in a mobile 
application that is going to be hard to come by. You need a long yagi and you need 
height to get the main lobe on the horizon. Neither of these come easy in a mobile 
setting, and having it dual band - further not easy! If you can live with a 5 
dBi omni that will operate on both 2M and 70cm the "J" is the answer.

GL CU 73, Dave...

Olde Antenna Lab of Denver
Dr. David A. Clingerman, ScD (CEO)