Re: Europa-List: Europa VHF Antenna Problems

[ivor.phillips <ivor.phillips@ntlworld.com>]

Maybe the steel mesh in the concrete has something to do with the Anomalies, 
Guessing!!!
Ivor Phillips
> Also, use a MFJ-259, VSWR meter, or field strength meter when the
> aircraft is parked on concrete, not turf or asphalt. I know about a
> dipole and inherent "ground reflections" within 8 feet of this stuff
> (one wavelength), but what effect the surface material has I don't
> know by theory, but have noticed real anomalies.  Maybe black = carbon
> and turf has water?
>
> Reg,
> Fred F.
>