On 5/22/06, Greg Brown <[EMAIL PROTECTED]> wrote: <snip>
need to drop the input power on your AP going into the amp. I've found 20 mw of power works best.
</snip> you mean milliwatts I hope and not megawatts ? :) Being as this is a point-to-point link you can raise the gain on the
antennas and the amps a bit to. Here are your limits: Total Amp Max gain EIRP in watts *30dBm 1W 6dBi 3.98 29dBm 800mW 9dBi 6.35 28dBm 630mW 12dBi 10.14 27dBm 500mW 15dBi 15.81 26dBm 398mW 18dBi 25.23 25dBm 316mW 21dBi 40.28 24dBm 250mW 24dBi 62.79 23dBm 200mW 27dBi 100.2 So, looking at this we have a couple options. I'd go with Yagi antennas or dishes. Personally I would only mess with 500 mw or 1 watt amps, too much freakiness on the adjustable amps. Use LMR400 antenna cables. The other stuff has too high loss. And mount the amp as close to the antenna as possible. Personally I'd go with Antennex Yagis, they are weatherproof and sealed. Nice. At 14.6 dBi gain you can still go with a 500 mw amp and you'll be just under max power. Anything more then 100 yards I'd consider going with dishes, but at this power level you should be ok. Use WPA between the devices too (keep the prying eyes out). If you get adventerous try afterburner mode on the wrts. I've never tried it, but I can't see why not. Anyway, those are my suggestions. Greg * On 5/22/06, Matt Dinsmore <[EMAIL PROTECTED]> wrote: > > I've done this before, not locally though. We used Cisco 350 bridges. > Worked great, except for when it got snowy/icey which I don't think will > be a problem here. We had multiple sites with yagi antennas. At the > center we had an omni. We had a 3 mile radius. The extreme edges got > kinda sketchy, but 100 yards should work fine and be stable. > > I would recommend the Cisco stuff, or even the Linksys ( which is now > owned by Cisco ) stuff if this is tmp / on a budget. > > How is your line of site ? This is VERY important for long distance hauls. > > Matt Dinsmore > [EMAIL PROTECTED] > > Carl Crider wrote: > > I am currently researching parts/designs for a wireless LAN here at my > > office. > > We need to connect a building that is 100 yards away from our main > > switch. > > This building houses only 5 PC's. Does anyone have suggestions on both > > design and local shops to buy the parts? > > > > This will be a permanent installation replacing the current underground > > fiber patching these 2 buildings. The fiber has to come up due to > > construction. > > > > Thanks in advance for any input. > > > > > -- > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug > TriLUG Organizational FAQ : http://trilug.org/faq/ > TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ > -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/
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