[MLB-WIRELESS] Wireless press.

[Paul van den Bergen]

Hi all,
I have two (old) wavelan cards that I will (eventually - hardware isues
with a flaky MB and one dead-to be resurected MB ... and a general lack
of spare time) be putting in a BSD box.  they are rated at 650mW output.
  At that rate and assuming reasonable losses in cables I can comfrtably
connect to a 8dBi omni and come close to 4mW (if my calcs were correct).
  the trouble is that I suspect that this will not really help as it may
not be compatable with the regular 802.11 cards now available.  I shall
have to experiment a bit.  A better use would be to use the two cards as
a peer to peer link.  In that case I will probably need a low dBi
antennae.  So I guess, how do you make an antennae worse?

FYI, 2MB/s, single central channel (2.42 GHz???), nominal range = 35 km
  =8-0

still this'll have to wait for more play money to become available for
hardware.  \

I guess if anyone has any suggestions or experience with elderly
wireless they might be able to give me a few pointers...

Andrew Dean wrote:

 >I belive that antennas gain adds to the power ... so a high powered card
 >(100 or 200mW) with a high powered (say 24dB) agian antenna would put you
 >over the 4W legal limit
 >
 >antennas 'focus' the power into a smaller 'beam' .... hence higher 
outputs..
 >
 >i could be wrong, but this is what i know....
 >----- Original Message -----
 >From: <lkhoo at csc.com.au>
 >To: <melbwireless at wireless.org.au>
 >Sent: Thursday, June 20, 2002 2:02 PM
 >Subject: Re: [MLB-WIRELESS] Wireless press.
 >
 >
 >>hmm ... in the article it says "The other legal issue is that the
 >>
 >high-gain
 >
 >>antenna may make the signal stronger than the legal limit".
 >>
 >>From the stuff that Tony posted today about high power low gain antenna's
 >>vs low power high gain antennas isn't the above statement quite
 >>
 >misleading?
 >
 >>So something like 4mW is still 4mW (or less) regardless of if it 
comes out
 >>of a high gain antenna or not?
 >>
 >>Am I on the right track here?
 >>
 >>Lucas
 >>
 >>
 >>To unsubscribe: send mail to majordomo at wireless.org.au
 >>with "unsubscribe melbwireless" in the body of the message
 >>
 >>
 >
 >
 >To unsubscribe: send mail to majordomo at wireless.org.au
 >with "unsubscribe melbwireless" in the body of the message
 >
 >

-- 
Dr Paul van den Bergen
SERC, RMIT University
paul at serc.rmit.edu.au
+613 9925 1624 phone
+613 9925 5699 fax
goofey: bulwynkl





To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message