[MLB-WIRELESS] World Wifi record

[Peter Buncle]

One point here,

The wireless speed's are what they are.

Ie the minimum speed is 1mbs using a wifi protocol.

I would want to have a calculated min of -85 before an onsite test.


Peter


----- Original Message -----
From: Peter Berrett <vk3pb at optusnet.com.au>
To: Peter Buncle; vk3jed at vkradio.com <vk3jed at vkradio.com>; melbwireless at wireless.org.au <melbwireless at wireless.org.au>
Sent: Mon Jan 02 12:52:16 2012
Subject: Re: [MLB-WIRELESS] World Wifi record

Ok Let's do a sample calculation now based on the actual equipment I own
 
I'll use the calculator at 
 
http://www.afar.net/rf-link-budget-calculator/
 
We'll assume that the setup at Binunyong has the maximum power output made up of 30db gain dish plus 8db power output and -2db cable loss = 36 dbm maximum legal power
 
At my end on Mt Dandenong a 24 dbm ex galaxy dish plus 14 dbm power and allow 2dbm cable loss with a Ubiquity bullet with -95 db receiver sensitivity @ 1Mb/s 
 
That should give a receive signal strength of -84.3 dbm with a fade margin of 10.7db
 
Not a huge margin to play with but arguable doable. The Ubiquity will probably do 256kbs at -100 or -105dbm so that should give a bit more elbow room.
 
cheers Peter  
 
 
 
 
 
 
 

	----- Original Message ----- 
	From: Peter Buncle <mailto:peter at nmc.net.au>  
	To: Peter Berrett <mailto:vk3pb at optusnet.com.au>  ; vk3jed at vkradio.com ; melbwireless at wireless.org.au 
	Sent: Monday, January 02, 2012 11:41 AM
	Subject: RE: [MLB-WIRELESS] World Wifi record


	Hi Peter,

	 

	 

	If you’re talking about the grids with the gold anodized aluminum, 24db

	 

	The ex galaxy ones with a width of around 600mm, they are 24db too.

	 

	 

	 

	Kind Regards

	 

	 

	Peter 

	 

	 

	________________________________

		From: Peter Berrett [mailto:vk3pb at optusnet.com.au] 
	Sent: Monday, 2 January 2012 11:18 AM
	To: Peter Buncle; vk3jed at vkradio.com; melbwireless at wireless.org.au
	Subject: Re: [MLB-WIRELESS] World Wifi record

	 

	By the way Peter

	 

	What gain do those ex Galaxy slatted dishes have?

	 

	cheers Peter

	 

	 

		----- Original Message ----- 

		From: Peter Buncle <mailto:peter at nmc.net.au>  

		To: vk3jed at vkradio.com ; vk3pb at optusnet.com.au ; melbwireless at wireless.org.au 

		Sent: Monday, January 02, 2012 9:54 AM

		Subject: Re: [MLB-WIRELESS] World Wifi record

		 

		Hi tony
		
		The north and south 2.4 antennas are facing wwn and wws. They are only 14db panels the range isn't suitable for record attempts.
		
		BUT I did pickup gho north in the past at the geelong side with the horizontal pol wave guide !
		
		So it does work well.
		
		Keep me informed of your schedule as I'm happy to help out with the melbourne region end.
		
		Cheers
		
		Peter
		
		
		
		----- Original Message -----
		From: melbwireless-bounces at wireless.org.au <melbwireless-bounces at wireless.org.au>
		To: Peter Berrett <vk3pb at optusnet.com.au>; MW Wireless <melbwireless at wireless.org.au>
		Sent: Mon Jan 02 07:33:14 2012
		Subject: Re: [MLB-WIRELESS] World Wifi record
		
		At 11:02 PM 1/1/2012, Peter Berrett wrote:
		>Just repeating an earlier question I put on the list.
		>
		>Does anyone know the exact angles that the north and south 2.4 mhz beams are
		>pointing at GHO?
		>
		>What direction are they pointing?
		
		Does anyone know the noise floor there too?
		
		73 de VK3JED / VK3IRL
		http://vkradio.com
		
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