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Technology Stocks : METRICOM - Wireless Data Communications

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Nov 26 3:03 PM EST

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To: Chun Chang who wrote (1648)	9/5/1999 3:53:00 PM
From: Lewis Edinburg	Read Replies (1) of 3376

But what is ATS311? Metricom has implemented some extensions to the Hayes AT command set for its wireless modems. They are the ATS? commands. If you disconnect your dial-up session and then run a terminal program (like HyperTerm) you can query the Ricochet modem. Make sure you include the question mark in your commands to the modem. See the following like for additional information: ricochet.net The ATS311? command lists the radios that your modem sees. The COLOR field will have 29 in it if the radio is at a WAP. Since the Latt/Long information is included for each radio, you can pinpoint them on a map, locating the repeaters and also end users in your neighborhood. I originally used the Latt/Long information to find where the nearest repeater was to my house. After plotting it on the map, I found that it was about 100 yards away. I walked down the road and looked up and to my surprise I saw the Metricom radio mounted on a street light. I never even noticed it before that; that is how unobtrusive the Metricom radios are. Unless you are specifically looking for them, you probably won't even know they are there. There is one exception to this that I know of. The Metricom radio on a street light near where I work must not be wired in correctly because that street light always stays on. It stands out because it is the only light on the block that does this. As far as Metricom adding WAPs, I know that this happens because about 4-6 months ago they added one near my home. The new WAP began appearing in the list of repeaters near me. It wasn't the closest radio to me and I still had to hop to get to it but it involved fewer hops than before the WAP was added. The fewer hops you have to a WAP, the better your performance will be.

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