Re: Dipole v. Omni



Floyd L. Davidson wrote:
> dold@xxxxxxxxxxxxxxxxxxxxxxxx wrote:
>> Floyd L. Davidson <floyd@xxxxxxxxxx> wrote:
>>
>>> Now hold the pencil vertically. It radiates to all points on
>>> the compass, but not up or down. That's very handy... it isn't
>>> so much pointing the maximum signal anywhere in particular that
>>> is important as it is pointing the minimum signal at some place
>>> where you won't ever have a receiver!
>>
>> Except for the upstairs/downstairs installations where questions pop up
>> here at least once a week.
>
> In many cases, horizontal would probably be better than vertical.
> Of course, at 2.4GHz there is so much multipath in most cases that
> polarization is almost random anyway.
>
>> Broadside to each other is the desired
>> orientation for a pair of common dipoles, whether that is vertical or
>> horizontal, or someplace in between.
>
> If there are many clients, it probably is an absolute truth.
> But in many case people just want to be able to go anywhere in
> the house with a single laptop. In that case it might be best
> to position the two antennas opposite each other.

I enjoy eavesdropping on you guys discussing antenna theory which is mostly over
my head but I pick up some of it. Could you explain what "broadside to each
other" means and what is meant by "opposite each other".
I have the typical Linksys wireless router and always wonder what the best
theoretical antenna position is. Both straight up (parallel) or both straight
back (parallel) or both at 45 degrees spreading left / right of the router or
maybe both pointing at 90 degrees left right. I suppose the answer is "depends".
If so... does it depend on whether I have more than one floor I want covered? Or
what?


.

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