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Author Topic: Polar diagram does it change  (Read 4369 times)

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lovemuscle

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Polar diagram does it change
« on: July 13, 2009, 08:51:54 PM »
Hello,
Can anyone tell me if the maximum range polar diagram actually serves a purpose?Does the shape and range of it change?
I went out in the car today and tried it on a big hill in stafford,then just tried it at home albeit later one,and the diagram is the same,i know this because i made a print screen of it this afternoon and just compared and there no different.
Anyone shed some light on this?
Thanks Gary

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lovemuscle

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Re: Polar diagram does it change
« Reply #1 on: July 13, 2009, 08:55:25 PM »
this is from this afternoon on the hill,much more flight though;

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« Last Edit: July 13, 2009, 08:57:07 PM by lovemuscle »
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lovemuscle

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Re: Polar diagram does it change
« Reply #2 on: July 13, 2009, 09:20:24 PM »
Right getting a bit further as ihave read that you have to clear polar data in the preferences first or it will remember last diagram,think thats where i was going wrong,but hey,whats happening now,i have just reset preferences and done test again,now it looks like im picking nothing up hardly at all,spikey diagram,heres the pic.

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tarbat

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Re: Polar diagram does it change
« Reply #3 on: July 13, 2009, 09:30:32 PM »
You need to give it a few hours (or days in my location) for the polar diagram to build up.
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lovemuscle

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Re: Polar diagram does it change
« Reply #4 on: July 13, 2009, 09:34:28 PM »
arhhh i see,i was under the impression it actually gave you there radiating pattern for your antenna at a given location straight away..cheers mate
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Allocator

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Re: Polar diagram does it change
« Reply #5 on: July 13, 2009, 09:37:06 PM »
No, the Polar Diagram is only created when you detect an aircraft, so no aircraft, no Polar Diagram - loads of aircraft, excellent Polar Diagram :-)
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tarbat

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Re: Polar diagram does it change
« Reply #6 on: July 14, 2009, 08:12:09 AM »
It can take many days to build up a full polar chart, depending on traffic volumes in your area.  I've had to wait 3-4 days to even get the following coverage:



If you want a more detailed coverage chart like this, including Flight Levels (FL) covered, then Overflight Logger v3.3 can give some great results.

Airnav Development - worth adding this type of coverage chart to the Airnav Flightwatch wish-list.
« Last Edit: July 14, 2009, 08:14:47 AM by tarbat »
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lovemuscle

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Re: Polar diagram does it change
« Reply #7 on: July 14, 2009, 09:03:54 AM »
cheers for the info,will check that out in a bit,going to get my samsung nc-10 today,sounds like it could be good for portable ops.
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tarbat

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Re: Polar diagram does it change
« Reply #8 on: July 14, 2009, 09:53:18 AM »
Quote from: lovemuscle on July 14, 2009, 09:03:54 AM
cheers for the info,will check that out in a bit,going to get my samsung nc-10 today,sounds like it could be good for portable ops.

A good choice - see http://www.airnavsystems.com/forum/index.php?topic=1413.msg14430#msg14430
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