[TowerTalk] Fwd: Fwd: Stacking question - another reality data point

[Hans Hammarquist]

 And how did it work? I think it could add to the understanding of propagation somewhat if we know from where the reflexes come from.

Hans - N2JFS

 

 

-----Original Message-----
From: Dick Green <wc1m73 at gmail.com>
To: Hans Hammarquist <hanslg at aol.com>
Cc: towertalk <towertalk at contesting.com>
Sent: Thu, Aug 11, 2016 2:27 pm
Subject: Re: [TowerTalk] Fwd:  Stacking question - another reality data point

It's been done. The 20m 4-stack at KC1XX can be switched by combination of antennas or by angle (when all four are selected.) Designed by K1GQ.

73, Dick WC1M

73, Dick WC1M

> On Aug 11, 2016, at 11:48 AM, Hans Hammarquist <hanslg at aol.com> wrote:
> 
> 
> I have had an idea for some time: When you feed all these stacked antennas in phase you will have optimum radiation to the horizon (or just above). My idea is to add switchable delay lines to the higher located antennas. (You could rather easily replace the damping networks in an attenuator with some coax do make this.) Thereby you will be able to get optimum angle for "higher up" propagation. You should select the steps to be small enough not to get "gaps".
> 
> Any taker? (K1TTT?)
> 
> Hans - N2JFS
> 
>