Saturday, May 2, 2009

Another update... and big news!

Hi all,

I have come across a startling discovery:

http://www.tvaerials.com/product.aspx?productid=32

Its a 19 dBi gain yagi! This means that as of now I am making the cylinder the temporary UHF radio telescope. That is to say, I will be using the cylinder for UHF until I can get my grubby little hands on a couple of these yagis (I will phase together two of them)! A collinear phased array of two of these yagis will also be the new VLBI antenna, and be used in my eight meter "house interferometer."

The yagis will also be on a motorized alt-az mount made from two ordinary TV antenna rotors, some PVC pipe, potentiometers (for position feedback), and a little electronics magic with this:

http://www.geocities.com/yyz228/

As for the cylinder, I will be completing it for UHF to see how well it works on the source test ("first light"), and for some work until the yagis are installed. It will then be converted to L-band. It will also be the leading contender for the L-band VLBI antenna.

Cheers,

KM.

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