how to identify simultaneous dual band?

[dfk]

Hi, how does one know if these adapters support true simultaneous dual band? why is the frequency listed in a different way for #1?

1
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, IEEE 802.11a
Frequency:
2.4-2.4835GHz
5.180-5.240GHZ
5.745-5.825GHz

2
IEEE 802.11ac, IEEE 802.11a,
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b
Frequency:
5GHz
2.4GHz

 

[kanewolf]

Dual band is not a simultaneous thing. Generally one or the other.
Adapter #2 is a higher bandwidth 5Ghz adapter since it support AC protocol.
Adapter #1 frequency description might be more important for country localization. There could be frequencies which are prohibited for a specific localization.

 

[dfk]

Dual band is not a simultaneous thing. Generally one or the other.
Adapter #2 is a higher bandwidth 5Ghz adapter since it support AC protocol.
Adapter #1 frequency description might be more important for country localization. There could be frequencies which are prohibited for a specific localization.

thanks. but doesnt a simultaneous dual band router connect both 2.4 and 5GHz at the same time, with 2 SSIDs? http://www.netgear.com/landing/dual-band.aspx

how to identify if it support?

 

[kanewolf]

Yes a simultaneous dual band router can connect to devices on either band. Any ONE client will connect on 2.4 OR 5Ghz but not both. You could have a laptop connected on 2.4Ghz and an iPhone connected on 5Ghz to the same router. The iPhone won't be connected on both bands.

 

[dfk]

Yes a simultaneous dual band router can connect to devices on either band. Any ONE client will connect on 2.4 OR 5Ghz but not both. You could have a laptop connected on 2.4Ghz and an iPhone connected on 5Ghz to the same router. The iPhone won't be connected on both bands.

ok I understand the client can connect to only 1. but for a dual band router with 2 SSID, 5GHz being used for gaming/streaming, 2.4 for other devices, how does one identify wether the router supports Simultaneous Dual Band (Two separate Wifi networks operating simultaneously) or only Selectable Dual Band? because most just are just advertised as dual band.

 

[kanewolf]

Since you used the word "adapter" in your initial post which would mean a client device, I may have misinterpreted ... Any ROUTER that says it is dual band any more is simultaneous dual band.