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Redline Gets 5.4 GHz FCC Approval
Proxim MeshMAX Combines Wi-Fi, WiMax
Wavesat, TI Work on Mini-PCI Design

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Category: 5 GHz

March 26, 2007

Redline Gets 5.4 GHz FCC Approval

By Glenn Fleishman

The first mention I’ve seen of WiMax-like devices in the 5.4 GHz stretch: This part of the 5 GHz band is one of two segments subject to rules that require unlicensed devices to back off on power and switch frequencies if radar use is detected. However, it’s a big hunk with 11 802.11a/n regular-width channels available. In WiMax, I’m not sure how 255 MHz of bandwidth translates into channels. There’s no approved profile for 5 GHz use of WiMax, but that doesn’t prevent using WiMax technology, certified in other bands, from deploying over 5 GHz.

The 5.4 GHz band doesn’t allow as much power output as the 5.8 GHz band, but the tradeoff is spectrum and utilization. There’s a lot less chance for interference in point-to-multipoint installations. Redline started taking orders last month for the unit, and said they have sold hundreds prior to their FCC certification.

Posted by Glennf at 12:05 PM | Comments (0)

February 9, 2007

Proxim MeshMAX Combines Wi-Fi, WiMax

By Glenn Fleishman

The company says it’s the first to mash-up Wi-Fi, WiMax in a single platform: The company offers both 802.11b/g and 802.11a radios for Wi-Fi coupled with a fixed WiMax (802.16-2004) radio for backhaul. The WiMax radio, from the Tsunami product line, works in 3.3 to 3.6 GHz licensed and 5.1 to 5.8 GHz unlicensed spectrum. There’s also an Ethernet switch built in. The WiMax radio is certified as a standalone item, but the entire product needs new certification. The company says MeshMAX will be software upgradable to Mobile WIMax (802.16-2005).

Posted by Glennf at 10:56 AM | Comments (1)

July 10, 2006

Wavesat, TI Work on Mini-PCI Design

By Glenn Fleishman

Wavesat and TI will develop a reference design for 802.16-2004 fixed 5.8 GHz mini-PCI adapters: These adapters are used for built-in components of laptops, but in this case, it sounds like they’re destined to be part of more compact CPEs (customer premises devices), or the bridges that receive WiMax signals. The press release says that this will handled the TDD (time division duplexing) profile for 5.725 to 5.875 GHz, which is a worldwide unlicensed band, and one of the first major profiles to be deployed. The companies expect to ship the design by fourth quarter, with Wavesat acting as the releasing firm.

Posted by Glennf at 12:12 PM | Comments (0)