[Antennas] Re: [ARLHS] To Ground or Not To Ground - That istheQuestion

[Chris Boone]

The Valor antenna mentioned in the original email is designed to be used
against a direct ground; through a cap in series and you have matching
issues, etc so using a magmount on it is NOT what the original design called
for. I have owned the Valor antenna and it works better against a direct
ground plane..not a magmount; I believe the Hamstick is designed the same
way....BTW SWR is NOT a measurement of better radiation of an antenna..field
strength (and received signal in a lesser part) is what counts..

Chris
WB5ITT

> -----Original Message-----
> From: antennas-bounces at mailman.qth.net 
> [mailto:antennas-bounces at mailman.qth.net] On Behalf Of Jack Painter
> Sent: Saturday, October 29, 2005 12:17 PM
> To: K3vw at aol.com; 223bthp at cox.net; jim at jimbuffington.com; 
> antennas at mailman.qth.net
> Subject: RE: [Antennas] Re: [ARLHS] To Ground or Not To 
> Ground - That istheQuestion
> 
> That's correct, a mag-mounted vertical capacitively couples 
> to a vehicle roof using the vehicle as a counterpoise or 
> ground plane. However, if vertical mag-mount antennas were 
> meant to be DC-grounded they would have been built that way, 
> but that is not the case. The horizontal planes created by 
> the vehicle roof, hood and trunk deck provide the near-field 
> ground plane. A wire connecting radio and car chassis to 
> antenna has no effect on RF whatsoever. Something else was 
> wrong if such a DC-jumper had any affect on radio performance.
> Jack
>   -----Original Message-----