Sydney Wireless

November 28, 2005

Linksys Wireless-G Broadband Router with SRX

Filed under: Miscellaneous — evilbunny @ 9:00 am

After setting up a wireless network, you may sometimes find that your WLAN may not extend quite as far as you expected. Even if that’s not the case, it’s not unusual to experience dead spots or areas where the signal isn’t strong enough to give you a fast or even steady connection. Enter the Linksys Wireless-G Broadband Router with SRX.

SRX stands for Speed and Range eXpansion, and in the quest to achieve this, this product, model WRT54GX, utilizes MIMO technology (from Airgo Networks). MIMO, which stands for Multiple Input Multiple Output, tries to improve signal range (and throughput at a given range) by using multiple transmitters and receivers simultaneously. MIMO is a key design component of the upcoming 802.11n Wi-Fi specification, but that should not lead you to infer that the WRT54GX (or any MIMO-based WLAN router) will be upgradeable to 802.11n when it’s finalized, since no vendor is making that promise.

October 18, 2005

Mesh Networking a Viable Alternative

Filed under: Miscellaneous — evilbunny @ 9:24 am

With traditional Wi-Fi networks, access points form radio cells that provide wireless connectivity to users, and these access points require cabling that interconnects them with Ethernet switches to enable roaming and connections to servers and the Internet. This is the most common wireless LAN configuration, but a problem for many applications is that it’s costly and not feasible to run cabling to each access point. As a result, vendors such as BelAir Networks, Firetide and Tropos Networks are delivering mesh networking solutions to ease installations where cabling gets in the way.

In general, mesh networking replaces the access points with “backhaul nodes” that are entirely wireless, except for the electrical cord. One side of the node interfaces with Wi-Fi users, typically via 802.11b/g. The Wi-Fi user associates with the mesh network node just as it does with an access point. The other side of the backhaul node has radios that interconnect the node to other backhaul nodes that comprise the mesh network.

June 1, 2005

Cellular Carriers Considering VoIP

Filed under: Miscellaneous — evilbunny @ 9:22 am

At a recent Banc of America Securities conference on media, telecom and entertainment, Verizon Wireless Executive Vice President and CTO Dick Lynch described his company’s plans to eventually offer VoIP over the company’s cellular network. “I think 2008 or 2009 is the time when we’ll see it start to take hold in a real commercial sense,” Lynch said.

The greatest barrier to such a deployment, Lynch said, is the speed of the network itself. “What we need to make voice over IP real in the sense of the mainstream voice application solution is to have EV-DO Revision A, because that provides us a faster uplink—it moves the uplink up to a peak rate of about 1.8 Mbps,” he said. “Once we’ve done that, and we’ve added quality of service and a few other things that need to get done, I think voice over IP is clearly on the evolution path.”

August 18, 2003

Help out Cacert!

Filed under: Miscellaneous — evilbunny @ 3:39 pm

Currently some effort is going on for the inclusion of Cacert’s
root certificate into the Mozilla browser. A RFE(Request for enhancement) has been submitted and is currently pending. For anyone who would like to show their support for Cacert please register an account at Bugzilla if you don’t already have one and place a vote for the Cacert RFE here.

July 1, 2003 tries for inclusion in Firebird…

Filed under: Miscellaneous — evilbunny @ 3:21 pm

After a period of heavy testing and early adoption is now trying to get further community support in the form of certificate inclusion in mainstream browsers such as Mozilla Firebird…

If the Firebird development team were to pursue this, it would mean those using the firebird browser would instantly be able to access a free certificate authority and do away with the need to fork out potentially $100’s a year paying for certificates to secure their websites…

If you think CAcert is a worth while cause and want to get involved in further benefiting both projects then have your say on the Mozilla forums

September 9, 2002

Worlds smallest warchalker…

Filed under: Miscellaneous — evilbunny @ 9:38 pm

Original Source

August 31, 2002

War-driven while War-driving!!!

Filed under: Miscellaneous — evilbunny @ 2:04 pm

The strangest thing happened today….I was happily (!!) war-driving around the CBD (Hyde Park to be exact) with my trustworthy ThinkPad R32 + Avaya Wireless card, trying to snoop up some network activity (thanks, Netstumbler!) when all of a suddenly someone (in another car??) tried to connect to my laptop in ad-hoc mode….the signal was very strong for something like a minute or so and then puff! it all disappeared…!!!

August 29, 2002

Wireless Communication…

Filed under: Miscellaneous — evilbunny @ 12:29 pm

Image by WB from Canada…

August 15, 2002

Slow News Week

Filed under: Miscellaneous — evilbunny @ 3:00 am

Slow news week so I thought I’d post a few famous quotes… 10 points to those that can email me who said them… no cheating now :P

Click More for the list of quotes… I’ll post answers next week sometime…

July 26, 2002

A bird in the cage is worth $1000

Filed under: Miscellaneous — evilbunny @ 1:20 pm

West Ryde shops and businesses have guaranteed $1000 reward for the return of West Ryde’s most famous feathered friend, Hector, who was bird-napped from outside West Ryde Pet Centre Saturday 20th July. Pet shop owner Doug Eyre is distraught over the loss of his close companion of 30 years, Hector, who sits on a perch outside Doug’s shop and chats to hundreds of passers by each week, many of whom have rung with sympathy calls.

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