dual band
In IT field, dual band is associated with the wireless router. This router handles frequency bands of 802.11. Dual band routers support 11a users in 5GHz band and 11b/g users on the band of 2.4GHz.
what is the band frequincy dual band single band
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In telecommunications, the terms multi-band, dual-band, tri-band, quad-band and penta-band refer to a device (especially a mobile phone)
Dual Band
A dual band wireless router is the most modern type of router. It broadcasts over two bands, so it is faster and more reliable than a single band router.
Unlike ordinary routers that only support one wireless signal band, dual-band routers contain two different types of wireless radios. When first introduced many years ago, dual-band routers supported both 802.11a and 802.11b
Single-band routers use a 2.4 GHz and are limited in range and speed compared to dual-band routers, which use both the 2.4 GHz and 5 GHz band. Dual-band routers are more efficient, have longer range, are less prone to interference from household devices, such as microwaves and older cordless phones, and are faster. Read more: http://www.bestdualbandrouter.com
Dual Band is your best bet. It can lose connection from time to time but I use to use dual band and its very rare. Plus its more open to your gateway.
It depends where you're intending on using the phone. Unless you're planning a world-wide cruise - a dual-band one would be perfectly adequate.
no, the card will slightly more power( almost not measurable) as its dual band, but the system board will adjust for it. There is 100% no cause for concern here