[ath9k-devel] Simultaneous 2.4 and 5.8 GHz on AR5008

[Artem Makhutov <artem@makhutov.org>]

Hello,

Galen schrieb:
>
> On Oct 14, 2010, at 10:11 AM, Artem Makhutov wrote:
>
>> Hello,
>>
>> is it possible to create an AP for 2.4 and 5.8 GHz simultaneous using a AR5008-3NX, MAC AR5416, AR5133 (ATHEROS AR5BMB-0072TA) card?
>>
>> Please set me on cc when replying, as I am not subscribed to the list.
>>
>> Thanks, Artem
>
> This is not possible. Many 802.11n radios are dual-band (including AR5008-3NX) - however, they can only operate in one band at a time.
>
> It is not practical for the radio to rapidly switch between bands. Even if you setup a system where it scheduled data transmits, data receives would be highly problematic to schedule. In theory this might be possible, but there is no good software available because it would either fail in practice, or be plagued with massive performance and/or reliability problems. 802.11 is simply not designed for the AP to "vanish" periodically.
>
> What you require is simultaneous dual band, which means the radio can operate in both bands at the same time. There are very few if any radio modules available that support this. I believe a few may have been produced - but they would be a rarity.
>
> I would suggest using multiple radios if you require dual-band support. They are quite inexpensive. Simply set each one up as an AP. If you do not have enough slots, there are a variety of options for multiplying PCI slots that are quite affordable. However, options for PCIe are somewhat limited.
>
> I hope this helps.

Thank you for the info.

What are the solutions to multiply a miniPCI slot?

Thanks, Artem

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