Maybe I should put a couple of pence into this for what ever it's worth For the last four years I have had my ISP hook up via 2.4 gHz A Cisco 350 system over a 15 mile connect at 100 mw. Weather has not been a factor. I use a 36 inch vertically polarized dish . 50 feet of LMR 400 coax to the Cisco transceiver. This is possible because the dish looks down a water shed where the fall off is equal to at least 3 feet per mile. That makes trees disappear so to speak. All of this might be a bit unusual , but it is possible.
I also use 2.4 gHz for Sat TV extention 3 systems using 433 mHz for data and control . My shack is a separate building 50 feet behind the house. The only interference I had on 2.4 gHz was when Santa provided a telephone remote that was a frequenncy hopper on 2.4 gHz. I gave that back to Santa and asked for 900 mHz spread spectrum unit No more interferrence.
And last, I live in a 150 person village 50 miles from all the big city interferrence I see referred to here on the BB
73's
Joe Murray K0VTY Amsat # 860 Area Coordinator for NE ============================== On Mon, 9 Oct 2006 00:47:25 +0100 (BST) Trevor m5aka@yahoo.co.uk writes:
I presume the eventual aim must be world-wide sales to achieve economies of scale. Quite frankly 10 km is a joke as you probably wouldn't even get that hilltop-to-hilltop. In a real-world environment a max range of 1 km would be more likely.
As I read the latest Ofcom Licence Excemption document it looks like these devices may be limited to 100 mW in the UK, see
http://www.ofcom.org.uk/consult/condocs/exemption/exemption.pdf
73 Trevor M5AKA
--- Roger Kolakowski rogerkola@aol.com wrote:
I googled the product with the "50" at the end of the part number
and
several sites came up with "claimed" ranges between 5 and 10
kilometers.
Because the product seems only to be available in the UK I didn't
convert it
to miles but I think it's 3-6 of them.
Roger WA1KAT
----- Original Message ----- From: "Trevor" m5aka@yahoo.co.uk To: "AMSAT BB" amsat-bb@amsat.org Sent: Sunday, October 08, 2006 4:03 PM Subject: [amsat-bb] Re: More Clutter on 2.4 GHz
--- Roger Kolakowski rogerkola@aol.com wrote:
And these radios have a range of 5 to 10 kilometers while you
get to
hold
them up against your head while transmitting!
I didn't see any range figures on the website, I'd have though a
max range
of 1
km (0.6 miles) is more likely.
73 Trevor M5AKA
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