and from the google link given, you could have probably gone to the real
site, howtogeek.com, to search for the given words "router+signal,
producing 265 results in 0.17 secs!!
Daniel
Did you guys look at the structure of the search he provided ?
router signal site:howtogeek.com
When you do that in Google, that's a "site search" done against
a single domain. That narrows the search down, so it's not a general
search. It means Stan thinks there is something of value on "howtogeek.com".
Using a site search from outside a site, can return a different
result than a search done using the search engine located on
the site itself. External searches are beneficial, for all those
site owners who don't know how to set up their own search
engine properly.
Some of these information sites, only host articles in the interest
of generating page hits (the articles exist for SEO purposes, not
as an aid to the visitor - they're filler material). The information
content is quite variable as a result, including articles which have
virtually zero value for solving problems.
So while a site search on some particular sites, virtually
guarantees "gold", not all sites are that well constructed,
and you could also end up with "overburden" rather than "gold".
If you know a site has hundreds of thousands of articles in it,
chances are no human has ever reviewed them for accuracy or
value.
*******
Antennas have a three dimensional radiation pattern, You can use
programs like 4NEC2 to model antennas, and get a result to show
you what the pattern might look like. Some people, trust the
output of an antenna simulation, more than the manufacturer's
spec (because manufacturers have been known to inflate
the stated specs).
http://en.wikipedia.org/wiki/Numerical_Electromagnetics_Code
In the example here, you can see there is a major lobe pointing
out the front, and a minor lobe on the back. This antenna
might be suited to a Wifi client, but would likely be
a worse fit for a Wifi router. Unless the router was at
one end of the house, and all the client computers
were on the same floor of the house, and accessible to
the main lobe of the radiation pattern.
http://www.cjseymour.plus.com/dtvantenna/farfield.png
The antennas that come with Wifi equipment for home usage,
are likely to emit in all directions, so that all directions
have a chance of working. If you use an antenna with "gain",
it robs energy from some parts of the pattern, to put it
into other parts of the pattern. If the antenna has enough
"gain", eventually the antenna becomes hard to point.
Paul