Re: [Scottish] Wireless range

[gordonjcp]

 How feasible is a wireless network connection over a range of around
 250-300m, with almost a line of site. Looking at a house or two being
 in the way. Will one of those omni things go that sort of distance
 through/around houses (sandstone/slate/brick)? Can the gear be
 boosted/directed and is it legal?

Houses will probably completely block the signal.  If it really is only
250m or so, you *might* get away with it if you have extremely good
aerials.

 If the answer is yes or probably, how much would I expect to pay for the
 kit required to get that sort of range? Ideally it'd be reliable and not

How long is a piece of string?  Buy lowloss cable, and a couple of APs
that you can seal into a weatherproof enclosure on the aerial mast.
Losses down the RF feed will kill any chance of getting this working.

 require pringles tubes mounted to rooftops. I'd only need a speed of ~
 600kbps[1].

Pringles tubes suck.  They really do.  Apparently the Tadiran link units
used by Atlantic Telecom work well - I haven't really played yet.
Homebrew aerials using bean tins (or better still, sugar cane tins - same
diameter but longer, which gives a narrower beam) seem to work really
well.  Ideally you'll need to get up high.  If you can actually see both
ends of the link, you may not even need external aerials.

HTH,
  Gordon








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Re: [Scottish] Wireless range

[Gary]

Well, to be honest, I found the range somewhat dodgy depending on what 
is in  'line of sight'

My setup is as follows:
Linksys 54g access point. (Supposedly one that has a long range..)
EdiMAX 54Mbps Cardbus adapter.
I can roam outside my house (nice),  to the nextdoor neighbour's garden 
(nice), car park (about 2 doors down) getting a poor signal, but still 
connected.

However, if  I actually go next door (indoors),  I get  0% signal.  I am 
a mid terraced house. The room next door is about 15m from the base 
station.  At a guess I would think that the wall between the two houses 
is too thick or contains too much metal reinforcing  to allow the signal 
to propagate.  (maybe this is good because the kidlets in the other 
house look like hacker wannabes ;-)

I havent really tried to boost the signal or get an external aerial, but 
just using the existing equipment.

But this is my own 'real life experience'
-Gary
Allan Whiteford wrote:
Hi,
I could spend hours looking up technical specs but I'd expect to get a 
better real world answer here.

How feasible is a wireless network connection over a range of around 
250-300m, with almost a line of site. Looking at a house or two 
being in the way. Will one of those omni things go that sort of 
distance through/around houses (sandstone/slate/brick)? Can the gear 
be boosted/directed and is it legal?

If the answer is yes or probably, how much would I expect to pay for 
the kit required to get that sort of range? Ideally it'd be reliable 
and not require pringles tubes mounted to rooftops. I'd only need a 
speed of ~ 600kbps[1].

Thanks,
Allan
[1] It's no coincidence that 600kbps is the speed an NTL cable modem 
goes at :).

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[Scottish] Shameless Spam - Computer Forensics Conference

[Colin McKinnon]

Hi All,

A friend of mine is organizing a conference in Monaco on Computer Forensics 
(http://www.ecce-conference.com/). I'll be trying to talk my boss into paying 
for me to go - although I don't hold out much hope :(

C.

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