The 802.11 Wireless Networks: The Definitive Guide, 2nd Ed by Matthew Gast, has been analyzing network traffic in Wireshark while devouring the book. I became confused when closely inspecting the output of Tshark output. The output shows a generic MACS, MACS and RTS frame, with the FC field numbered 0 to 15 at the far left. The Control field is represented as 0x500 by the Tark’s Control button. The frame control is 0x0850 (Normal)”]
Source: https://taosecurity.blogspot.com/2006/08/deciphering-80211.html