Topband: Phased Pennants: Staggered?
Peter Hutter
phutter at Princeton.EDU
Mon Nov 10 09:37:51 EST 2003
Hi Jeff,
Yes you can phase two or more pennants in a endfire or broadside
configuration, or combination of both. K2WI and I successfully built
these arrays years ago.
A hybrid directional coupler would be an excellent choice to feed
these systems. You can use also use lumped elements to feed them. The
results of using lumped elements is that both phase and amplitude are
frequncy dependent, where only the amplitude of the 90
degree hybrid is frequency dependent. Also, the output ports of the
hybrid have a high
degree of isolation.
73,
Peter WW2Y
Jeff Maass wrote:
> I have a pair of pennants that I'd like to use in
> the arrangement shown at:
>
> http://home.columbus.rr.com/jmaass/Radio/PJ2_Pennants.htm
>
> W8UVZ, K8GG and KD9SV used something very similar to
> this with great success last year in the CQ 160 Meter Contest
> from the Signal Point Station, PJ2T.
>
> Due to space available, putting them side-by-side with
> the desired 300 foot spacing and pointing the correct
> direction is a problem. Can a similar pattern be obtained
> by using the same array, but installed so that they are
> staggered a bit, sort of midway between in-line and
> broadside?
>
> How would one go about phasing two pennants "endfire"
> rather than broadside? Is it best done as with a
> transmitting vertical array?
>
> 73,
>
> Jeff Maass K8ND
>
> Caribbean Contesting Consortium - PJ2T
> http://www.pj2t.org
> http://home.columbus.rr.com/jmaass/Radio/PJ2T_Aerial.htm
>
>
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