[aprssig] APRS antenna for an airplane

[Glenn Wiebe]

Glenn Wiebe wrote:
> Would mounting a 1/4w vertical or similar antenna on the belly of an 
> aircraft not create a null area directly underneath the plane? I 
> remember the pilot of a Jet Ranger under contract to the company I 
> worked for at the time telling me that they would not install it there 
> for use with our company 179 mhz radio for that reason.
> 
> 73 de Glenn...VE4GN

That's 170 mhz.