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 Post subject: Comparison of COCO antenna V Skyscanner
PostPosted: Tue Mar 07, 2017 11:36 am 
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MarkMettam - FlightAware user avatar

Joined: Fri Feb 24, 2017 11:09 am
Posts: 3
Hi

I have been using a generic wideband scanner antenna but recently constructed a 7 element Coaxial-Collinear antenna which I placed inside a 2m piece of 22mm electrical conduit. Both antennas are at approx same height as you can see here. Not sure why the pic is on its side as the original is fine , you can see the scanner antenna at the base of the collinear , the other white antenna is a 70cms/2m dual band ( I'm a Radio Ham )

Image


The performance difference between the two is very noticeable as you can see here

Scanner Antenna
Image


COCO Antenna

Image




Needless to say I'll be sticking with the collinear


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 Post subject: Re: Comparison of COCO antenna V Skyscanner
PostPosted: Tue Mar 07, 2017 12:18 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 1929
Location: Toronto CYYZ
Make a 1/4 wavelength groundplane (Spider), and make a comparison.

Now the picture looks better.
Image


Last edited by abcd567 on Tue Mar 07, 2017 12:21 pm, edited 1 time in total.

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 Post subject: Re: Comparison of COCO antenna V Skyscanner
PostPosted: Tue Mar 07, 2017 12:19 pm 
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MarkMettam - FlightAware user avatar

Joined: Fri Feb 24, 2017 11:09 am
Posts: 3
It does , thank you


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 Post subject: Re: Comparison of COCO antenna V Skyscanner
PostPosted: Tue Mar 07, 2017 12:32 pm 
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MarkMettam - FlightAware user avatar

Joined: Fri Feb 24, 2017 11:09 am
Posts: 3
abcd567 wrote:
Make a 1/4 wavelength groundplane (Spider), and make a comparison.


It's on my list of projects 8)


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