Archived from groups: alt.internet.wireless (More info?)
John Beeston wrote:
> Sorry to bring this up again, but I am somewhat confused by the varying
> claims and counter-claims I have seen on this group...
> I have seen a lot of effort going into making the signal strength 100% by
> installing loads of kit... and yet there is concern over wireless emissions.
> Is 100% signal strength mandatory for a wireless connection to work
> I have a D-Link unit which worked (albeit only over a couple of rooms) with
> very poor signal strength, eventually traced to the antenna wire not being
> soldered to the pad on the PCB.
> Can a PC / Laptop work happily at the hundreds of meters distance from the
> WAP as claimed in the literature... my limited testing seems to indicate
> that this is possible...
> So, is anyone using this technology over the 28, 000 meters I have seen,
> claimed for some of the hi-gain antennae?
> Is it reliable at this distance, and what factors are likely to influence
> this reliability? Rain / Snow / weather? Motor traffic? Electrical
> Does anyone wish to claim the longest reliable link, and explain how it is
70% RSSI and 70% signal strength is what some people shoot for to do a
very reliable link. Anything above that is gravy. 28,000 meters? That
kind of distance and much more is certainly possible, but usually
involves towers, very high gain antennas, maybe an RF engineer or three
- in other words, not for the general public.
Rain doesn't affect the signal, however snow and ice building up on the
antennas can knock a link out. Motors and electrical appliances normally
do not affect links with the exception of microwave ovens - they operate
at the same frequency as much of the consumer wireless gear.