Explain about channel width 20/40Mhz Ce – Ceee – eCee – eeCe - eeeC

RouterOS Wireless Networking
1

Dear friend
I will be appreciated if anyone explains me about 20/40Mhz Ce – Ceee – eCee – eeCe – eeeC.
I do not what is that mean or where we can us it.

Thanks

2

See this: http://forum.mikrotik.com/t/wireless-fp-ce-ceee-ec-ecee-eece-and-eeec/78748/1