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+[img/main-menu.png]]
+The Main Menu of Mayhem comprises a number of buttons to access the various functionality groups of the firmware.
+
+|Button|Functional Group|
+|------|----------------|
+|Receive|Receiver Applications|
+|Transmit|Transmit Applications|
+|Capture|Permit Recording or 'Capture' of RF to facilitate analysis or Replay Attack|
+|Replay|Transmit a previously recorded RF Capture file|
+|Calls|Detect any signals within a specified bandwidth, similar to 'Close Call function on scanners|
+|Scanner|Step through a list of pre-defined frequencies, stopping if squelch is broken (signal detected)|
+|Tools||
+|Options||
+|Debug||
+|HackRF|Switch to HackRF mode for use from a USB Host device (eg. computer)|
+