Hi Kris, Assuming there's no downtilt to the antenna pattern, don't forget to divide the 8-degree beamwidth in half before you do your calculation! ( tan(4 deg) = 30 ft/(distance to intersection with ground, ft) => distance to intersection with ground (ft) = 30 ft/tan(4 deg) = 429 ft. So perhaps your signal is out there and it's just shooting over the top of your head!
Greg On Wed, 2005-07-06 at 22:13, Kris Linquist wrote: > WiPhiles (tm), > > I want to start a PublicIP.net hotspot in my townhouse complex. I've got it > all up and working, but the range is disappointing. > > I have a rugged version of the Cisco Aironet 350 up in my attic attached to a > Hyperlinktech 15dBi omni antenna. I figure the attic is probably ~30ft off > of the ground. The antenna has an 8 degree vertical beam width. Simple trig > tells us that the beam should "touch the ground" ~215 feet out. > > I walked all around, and I couldn't get any connection (from a laptop) at > anything more than approx. 200 feet away. I can access my "regular" access > point (also 100mW, standard 2dBi antennas) from ~100 ground-feet away. > > I suppose I thought I'd get better range through the buildings of the > complex. I don't really want to mount it on the roof...because I'm just > renting this place and don't want the HOA calling my landlord :). > > Any comments? > > -Kris > > _______________________________________________ > BAWUG's general wireless chat mailing list > [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless _______________________________________________ BAWUG's general wireless chat mailing list [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless
