[Elecraft] Antenna Relays

[d.cutter at ntlworld.com]

I think the point about "grounding" unused antennas is most probably to drain static in which case a resistor in the grounding line would work and not detune much.

I wonder if anybody uses chokes on their verticals as they do on broadcast stations.  

David
G3UNA
> 
> From: "Franki ON5ZO" <on5zo at telenet.be>
> Date: 2007/06/19 Tue PM 02:55:55 BST
> To: <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] Antenna Relays
> 
> > You may want to keep in mind that grounding an antenna
> > when it is not used may not be a good idea. It is
> > possible to significantly distort patterns with the
> > wrong combination. It may be worth detuning an antenna
> > before grounding it to minimize this effect.
> >
> > This may be more of an issue with multiple vertical
> > antennas on harmonic frequencies.
> > Cheers,
> > Julius
> > n2wn
> 
> True. I had +/- the same experience. Due to the size limitations of my lot I 
> need to 'cross polarize' between 80 and 160m. I had a working 80m dipole and 
> added a 160m dipole, which ruined the 80m resonance and I never got 160m 
> working (resonance not to be found). Now I have an 80m vertical and a shorty 
> 160m dipole, within 10m of each other and no problem at all (not even in 
> SO2R @ 1kW).
> 
> 73 de Franki ON5ZO 
> 
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