Michael, I have CC this to NZNOG since wireless is the topic of the week. These are my guidelines . Outdoor networks are not toys. To build a proper outdoor network you need to do the following things. 1) Site Survey - Using diagnostic card or Spec Analyzer to determine the channels noise levels at 20 Degree increments. Build a pie graph that shows all 360 Degrees and elevation. From this you will know the right channel to use in the best direction. Never assume that since the link only goes 500m that you need not to worry. I have a POP that goes 20km that has the capacity to kill most radios on the same channel within 10KM radius. ( Transmit gain is a deadly weapon ). I condone the use of outdoor networks that are not site surveyed. 2) Network ID - Identify all the surrounding networks with the correct software ( Unnamed for others security ). Make sure you know the people that run these networks. You never know when you might need to ask them to change channels. Shooting there POP down does NOT give you a foot in the door. 3) Antenna Choice - 500m is not far, But using two 100 Degree leaky antennas with bad Rad patterns will introduce you to a lot of interference. Stick to a good Grid of 15 - 19dbi . Panels are OK if the patterns are good. Keep you beam tight and loose the gain in the cables. Run RG-50 to the antenna ( 6-8M MAX! ) and compensate with the bigger tighter antennas. DON'T USE OMNIS! ( but you all know that right :) ) 4) Equipment Choice. - Love Thy Neighbors. Use DSSS 11mb equipment with European Firmware. Stick to Channels 1-6-11 . These are the main points to ANY out door network. Scan / Map / Plan / Deploy Good Luck with the network. !!! Best Regards Matthew G Brown - Wireless Network Specialist - Tasman Solutions LTD - Nelson, NZ - 03 543 9092 025 807731 ----- Original Message ----- From: "Michael Hallager" To: "Matthew G Brown" Sent: Friday, November 09, 2001 7:54 AM Subject: Re: Update

Hi Matthew,

I have already spoken to you regarding this stuff. Now that I have your contact details, I will remove the feedback I left on you @ TradeMe.

I am still very interested in what you have to offer. I am doing a short range (> 500M) wireless link in the next couple of weeks and am looking for a cheap (used) access point for this as the person at the other end is on a tight budget. I have not forgotten you.

Best regards,

Michael Hallager

On Thu, 08 Nov 2001 23:12, you wrote:

...

Maybe you should concider just buying new Lucent from LAN1 . If you are not familiar with Wireless then you can make a real mess of things VERY fast. Make your life easy. Call LAN1, Talk to Liam , Get a solution. They can support you should you have trouble. Cheap WLAN's turn to muck, Ive seen and fixed plenty around the country latley .

-=-=-=-=-=-=-=-=-=--=-=-=--=-=-=- Matthew G Brown Tasman Solutions LTD Wireless Network Specialist DDI: +64 3 543 9092 http://www.tasman.net ----- Original Message ----- From: "Joe Abley" To: "Michael Hallager" Cc: Sent: Thursday, November 08, 2001 7:23 PM Subject: Re: Update

...

On Thu, Nov 08, 2001 at 07:10:20PM +1300, Michael Hallager wrote:

...

I have just recieved a condesending and irrelevant email from a list member (Who was attempting to second guess my setup/ application and got it totally wrong).

Condescending *and* irrelevant? tsk, tsk :)

...

To reiterate, I am after wireless access point/s for use with external roof top aerials. I am after more than one unit. I need a unit that can do point > multipoint (Lucent AP500/1000 or similar) and also interested in point to point style units for another project. In any case a unit has to be able to handle a external aerial and be 802.11b compat.

Are you looking for second-hand boxes, or recommendations on vendors?

[cue Simon/Richard grand-prix Apple Airport disassembly and retrofitting speed trial anecdotes]

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