Which option will allow the maximum 2.4 GHz channel usage for a survey and voice deployment in the ETSI domain?

Question

Options

• A1, 6, 11
• B1, 5, 9, 13
• C1, 6, 9, 14
• D1, 6, 11, 14

• A
  93% (37)
• C
  5% (2)
• D
  3% (1)

Explanation

In the ETSI (European Telecommunications Standards Institute) regulatory domain, channels 1 through 13 are available in the 2.4 GHz band (compared to channels 1-11 in the FCC/North American domain). However, for truly non-overlapping channels, each channel must be at least 25 MHz apart (since 802.11 channels are 22 MHz wide with guard bands). Channels 1, 6, and 11 are each 25 MHz apart and are completely non-overlapping - this is the universal standard set of non-overlapping 2.4 GHz channels. Channels 1, 5, 9, 13 are only 20 MHz apart, meaning they partially overlap and will interfere with one another - making them unsuitable for a voice deployment where RF cleanliness is critical. For voice specifically, using channels 1, 6, 11 ensures interference-free operation even in the ETSI domain, making it the correct choice for maximizing usable, non-interfering channel capacity.

No community discussion yet for this question.