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