My 2 cents worth.  It looks to me like it might be a WiFi antenna.  Is
there a wifi hotspot close by?
 Maybe at a higher altitude than the house it's ounted on?

 Regards,

 Jim

> -------- Original Message --------
> Subject: Re: [EE] Weird Antenna
> From: Herbert Graf <hkgraf@gmail.com>
> Date: Fri, June 14, 2013 3:03 pm
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>=20
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> I was in the area again and pulled out my DSLR.=20
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> The images give a MUCH better view. I've attached very low res small
> image to this email.
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> For higher res pictures please use the following links:
> http://www.herbgraf.com/wp-content/uploads/2013/06/weird_antenna_1.jpg
> http://www.herbgraf.com/wp-content/uploads/2013/06/weird_antenna_2.jpg
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> As the images show, this weird antenna is using the DBS antenna as a
> mount! The DBS antenna is probably not being used.
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> The angle from horizon to zenith that's it's aimed at is about 45
> degrees. It may be hard to tell, but the weird antenna is pointed AWAY
> from the camera.
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> Angle that it's pointing is about SW.
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> Based on the grid it's a vertically polarized signal that it's aimed to
> pick up. The size of the driving element is around the 2X the size of
> the white sheild of the DBS LNB it's attached to, so the total length of
> the active element is probably around 6-8" (~15-20cm).
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> It feeds a single coax, I don't see any LNBA, looks like the receiving
> antenna is directly connected to the coax (I'd guess a BALUN is
> involved, but you can't see it.
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> Thanks for any hint! Never seen one of these! :)<hr>--=20
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