[amsat-bb] Re: Mount an Arrow on rotator with 2m vertical or horizontal

[Douglas Phelps]

Any reason why, using identical coax lengths, you could not transform the 
impedance to 100 ohms and then use a T connector to sum both antenna signals and 
achieve 50 ohms to the radio?  I know Transmit power will be 3 dB down at either 
antenna but is there any reason it will not work?  Any antenna gurus out there?




________________________________
From: R.T.Liddy <k8bl at ameritech.net>
To: amsat-bb at amsat.org
Sent: Tue, April 16, 2013 11:46:35 AM
Subject: [amsat-bb] Re: Mount an Arrow on rotator with 2m vertical or horizontal

For the Satellites, it completely doesn't matter. At any given moment,
you only have 1 chance in 90 that you will have matching polarization.
 
So, if you plan to use the antenna for other than Satellites, set your 
polarization
for that purpose (V for FM or H for SSB/CW).
 
My plan is to install 2 Elk antennas, one V and one H. Then, have a relay that
I can switch between the two and choose the best downlink signal at any
given moment. This arrangement will also give me optimum flexibility for
terrestrial operation on 2 & 440. 
 
Now, where can I find a relay to do that function?????
 
73/GL,    Bob K8BL


--- On Tue, 4/16/13, Lee Maisel <maisel at lobo.net> wrote:


From: Lee Maisel <maisel at lobo.net>
Subject: [amsat-bb] Re: Mount an Arrow on rotator with 2m vertical or horizontal
To: "Don Hoover (WS4E)" <ws4e at arrl.net>
Cc: amsat-bb at amsat.org
Date: Tuesday, April 16, 2013, 12:24 AM


Hi Don,

I have mine mounted with 2m elements horizontal, because that's how it 
seems I used it most when it was handheld.

Lee
W5LMM


Don Hoover (WS4E) wrote:
> Just wondering, should I mount my arrow with the 2m elements oriented
> vertical or horizontal?
>
> I am planning on putting it at 15deg and just using a az rotator.
>
> Does it even matter which way its oriented since the polarity of the sats
> are always changing?
>
> Maybe I should mount it like this: / instead.
>
> Just curious what some thought was the best way to go.
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-- 


ΜΟΛΩΝ ΛΑΒΕ

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