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[Ham-80211] 2.4 GHz remote broadcast

kd4e kd4e at verizon.net
Sun Feb 18 18:31:14 UTC 2007


> I've all but completely abandoned channel 6.  So 22 mhz of 
> spectrum centered on 2441 or so are gone for all practical purposes.  
> Around 50% of my installs for the last 6 to 12 months have included a 
> home wireless router.  Out outdoor gear hears the local, or the next 
> door neighbor, system at 20dB or more higher than my own ap's.  So by by 
> channel 6 and most anything around it.

Understood.

> 900mhz decent through trees and buildings.  But the 4 watt power limit 
> still brings it to a dead stop after a couple of houses or a couple of 
> dozen trees.  Half mile of dense trees I think is about all a data 
> system will really work well for.  Naturally, the trees make all of the 
> difference.....

Are all forms of Ham communications on 900MHz
limited to 4W or only high-speed data/video?

> 2.4 can go through most walls in your house, but not the wire mesh or an 
> in ceiling heating system.  Plaster and lath will also hurt distances in 
> the home.  Low E windows are a brick wall for it, you're often better to 
> shoot through a wall than a window.

Hmmmm.

Sounds like 70CM is more versatile.

> 5 gig, gotta see it to do it.

Line-of-site, like light?

> 5.2 and the new 5.4 ghz bands will be hard to use in long distance shots 
> due to the hard eirp limit of 1 watt.

Are all forms of Ham communications on 5.2 & 5.4
limited to 1W eirp or only high-speed data/video?

> that help at all?  marlon

Every shred of data and informed perspective is
valuable for planning a future strategy!


-- 

Thanks! & 73, doc, KD4E
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