[TowerTalk] 5 db required to see?

[Tom Rauch]

> Perhaps the focus is entirely wrong here. At some point, we're putting
> more than sufficient signal into the target area -- the only thing lacking
> is the ability to hear.
> 
> Maybe what we need are low-noise, directional receiving antennas, not high
> gain, directional transmitting antennas. This would dictate more use of
> beverages or directional loops, even on the high bands, rather than longer
> / more yagis.

There is a station that has almost 50 receiving antennas spread 
over 60 acres or more of area, including true multi-channel diversity 
receivers that allow operators to listen in multiple directions at the 
same time. 

Some of the antenna systems can be used by multiple receivers 
listening in totally different directions at the same time.
73, Tom W8JI
w8ji@contesting.com

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