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From: Dave Liquorice on 24 Dec 2008 09:24 On Wed, 24 Dec 2008 13:52:58 +0000, Andy Botterill wrote: > WiFi has a range of up to 700m. Hum, tell that to the links around here that are several km long using standard Ciso WiFi kit dating back the best part of 5 years... Just needs clear line of sight and decent aerials. The short limits come from lack of line of sight and aerials not much better than a bit of damp string. -- Cheers Dave.
From: Gordon Henderson on 24 Dec 2008 13:15 In article <nyyfbegfubjuvyypbz.kceb9i0.pminews(a)srv1.howhill.net>, Dave Liquorice <allsortsnotthisbit(a)howhill.com> wrote: >On Wed, 24 Dec 2008 13:52:58 +0000, Andy Botterill wrote: > >> WiFi has a range of up to 700m. > >Hum, tell that to the links around here that are several km long using >standard Ciso WiFi kit dating back the best part of 5 years... Just needs >clear line of sight and decent aerials. The short limits come from lack of >line of sight and aerials not much better than a bit of damp string. Seconded. I ran a link that was 6.5 miles long once upon a time. Proper outdoor kit, with a directional antennae at the far-end, but nothing illegal, or home-made. Just bog-standard off the shelf kit at the time (some 4-5 years back) Gordon
From: Grant Edwards on 24 Dec 2008 14:27 On 2008-12-24, Gordon Henderson <gordon+usenet(a)drogon.net> wrote: > Seconded. I ran a link that was 6.5 miles long once upon a time. Proper > outdoor kit, with a directional antennae at the far-end, but nothing > illegal, or home-made. Just bog-standard off the shelf kit at the time > (some 4-5 years back) I've wondered if using high-gain antennas is actually legal in the US. I thought I read somewhere that there's a limit on ERP which can be easily exceeded with a directional antenna. -- Grant
From: Andy Botterill on 25 Dec 2008 05:58 Charles Lindsey wrote: > I am thinking of building an embedded system to control the heating of a > building, and have identified the LPC2468-16 OEM Board from > www.embeddedartists.com as a suitable Linux platform to host it (BTW, > comments from those who have used those embeddedartists boards would be > welcome). This board comes with built-in ethernet, USB, UART, I2C and A/D > converters, and is very reasonably priced. connectBlue do two WLAN boards OWSPA311g and OWLAN211g. The range quoted is nowhere near what other people here have quoted. It is likely that you will have to add an LNA and a PA to achieve the range that they are quoting. LPC2292 SO-DIMM from embedded artists has a connctor for a connectBlue module. There may be other embedded artists boards that can do this. This is the first one that I saw. It is not clear what the connector signals are. Assuming that they are compatible between WLAN and bluetooth you can swap technologies. You will probably need to check that drivers exist for this module or this will not be possible. Good luck andy.
From: No one on 25 Dec 2008 22:30
On Wed, 24 Dec 2008 11:21:06 +0000, Charles Lindsey wrote: > So suggestions please, and preferably one that will work with an > external antenna, because I will be hoping to connect to a base station > at quite some distance (though I can get by with a fairly low bitrate). try this link... http://www.dpactech.com/ |