[MLB-WIRELESS] World Wifi record

Tue Jan 3 14:27:58 EST 2012

In this test , make sure you use like radios

As illustrated on a testing bbq at Mike's in geelong where a like radio achieved a ccq of 100% over 100klm and another on the same antenna would barely link.

Cheers

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: Tue Jan 03 11:21:16 2012
Subject: Re: [MLB-WIRELESS] World Wifi record

I have taken down my Ubiquity Bullet M2 and my slotted waveguide (modified)

They should work well for this exercise as the Bullet is quite sensitive. I will try and test the antenna today.

cheers Peter

	----- Original Message ----- 
	From: Peter Buncle <mailto:peter at nmc.net.au>  
	To: vk3pb at optusnet.com.au ; vk3jed at vkradio.com ; melbwireless at wireless.org.au 
	Sent: Tuesday, January 03, 2012 10:17 AM
	Subject: Re: [MLB-WIRELESS] World Wifi record

	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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