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Interpreting channel frequency field in Radiotap header of 802.11 capture

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I have an AirPCap capture. It shows the value 8509 in the channel frequency field of the Radiotap header. Wireshark also displays this as 2437 [channel BG 6].

My question is - how is this value of 8509 interpreted? How does 8509 translate to 2437? I have not found any related information on radiotap.org or other sources.

Thanks Manish

asked 13 Jan '11, 06:16

magrawal's gravatar image

magrawal
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One Answer:

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The field is in little-endian format, so 0x8509 actually represents the hexadecimal value of 0x0985. Converting hexadecimal 0x0985 to decimal yields 2437.

answered 22 Mar '11, 07:25

cmaynard's gravatar image

cmaynard ♦♦
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