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More Fiber
MVM
join:2005-09-26
Cape Coral, FL

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MVM

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Re: Actiontec MI424WR FIOS N Router REV. I

The rev. F is draft 802.11n only.

SRF26
join:2000-04-03
Jamaica, NY

SRF26

Member

said by More Fiber:

The rev. F is draft 802.11n only.

Thanks for the info.

Happy New Year....JL

Zero5
join:2009-07-01
Collegeville, PA

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802.11n single stream data rates
said by More Fiber:

The rev. F is draft 802.11n only.

Saying that it's draft doesn't accurate explain why it's limited to only 65 mbps. A 802.11n router can be draft and get up to 270 or 300 mbps too.

As you can see from the table above, the real reason the Rev F is limited to 65 mbps is because it only has a single stream radio and is limited to only use a 20 MHz channel. This is why it still only has a single antenna.

The wikipedia page on 802.11n has the full chart where you can see the Rev G and Rev I have 2 spatial streams but are still limited to the same 20 MHz channel of bandwidth resulting in 130 mbps. With 2 streams a second antenna was added to the design.

The GI of 800ns is standard in 802.11 - 400ns is optionally used by vendors for increased data rates.

»en.wikipedia.org/wiki/80 ··· ta_rates

»en.wikipedia.org/wiki/Gu ··· Interval