[NTLUG:Discuss] wireless network

[terry]

Jack Snodgrass wrote:

>On Tue, 22 Jul 2003 11:32:23 -0500, Chris Cox wrote:
>
>  
>
>>Tom Tumelty wrote:
>>    
>>
>>>I want a wireless network that will work in either of
>>>2 buildings which are about 500 feet apart. i.e. i
>>>want to be able to be at home and access data at my
>>>office without tying up a phone line, etc , or without
>>>running a cable if possible between the two buildings.
>>>there are some trees (not many) and a square area
>>>between the two buildings enclosed by a cyclone fence.
>>>      
>>>
>>There are some access points that are well known to
>>be configurable with regards to power output (if the
>>FCC/Feds comes knocking at you door you'll know why).
>>    
>>
>
>I had the FCC come to my house once when I did 9600 Baud 
>Packet Radio. I was the first one in the DFW Area to set 
>up a 9600 Baud packer radio link.
>
> They wanted to know what the 
>'static' was that I was broadcasting. They thought it was 
>interesting that I'd send a burst of static... and then the 
>other end of the link would send back a burst of static. 
>I'd respond it and went on and on.  I was located in 
>Grapevine and the other end of the Link was in Denton. 
>
>The FCC has unmarked cars. The directional antennas that they 
>use are built into the columns that the car roof sits on. 
>Pretty stealthy. I would have expected a truck with lots of 
>antennas....
>
Interesting ...
How long ago was this?
What did they do to you?
What frequencies did you use?
Were you licensed to transmit on those frequencies?
( CQ DE KJ5ZR )

>It's power and antennas. The more directional the antenna, the
>less power you need. 
>

True.   If you have a directional antenna, you'll concentrate the power 
into a beam as narrow as 3 or 4 degrees.

>You want really good directional antennas 
>so you can 
>1) direct your power to the right spot
>and
>2) not send your data to other places and people that you
>   don't want getting your data. 
>
>it's much better to send 100 watts of power to one direction
>rather then send 25 watts in all 4 directions. 
>
>  
>
>>Or go with a dedicated microwave setup between the
>>building... or point to point laser if you have
>>the bucks.
>>    
>>
>
>I think with the right antenna setup and the ability / desire
>to use externally mounted antennas, you can do it with fairly 
>cheap hardware. 
>

Yea, ... and you can save money by building your own antenna(s).

-- 
Registered Linux User #188099
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