[amsat-bb] Arrow 14 el. 440 crossed yagi - feeding?

["Malcolm M. Preston" <malnp2l@xxxxxxxxxxxxx>]

I am in the process of putting together an AO-40 antenna package to use
portable and have the Arrow 14 element X'd yagi for uplink.  I need to put
together a phased feed harness to acheive RH polarization.  I see no need to
make it RH/LH switching.

1.  If I divide the coax and feed one antenna with a 1/4 wave stub and the
other with a 3/4 wave stub it appears I'd get a 180 degree phase shift.

2.  Although the literature I've found prescribes different coax impedences
I wouldn't think the mismatch would be all that significant if I used 52 ohm
coax for it.

3.  How does one hook it to the driven elements to get RH or LH?

I'm pretty rusty on this stuff so any comments or advice would be
appreciated.

Mal, NP2L
St. John, USVI

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