The Byonics PicCon is the most popular Fox (Transmitter) Hunt Controller used in our area. Once it is programmed as you wish, it will key a radio, send repetitive tones via a microphone connection, send your call sign in Morse Code, and stop transmitting for a quiet radio cool down period. It will keep repeating this cycle till you shut it off physically or remotely by using the DTMF tone keypad of a separate radio.

There are six basic, and two optional items to program for a simple fox hunt, they are:
1 Musical Tones Time,  2 Total Cycle Time,  3 Morse Code ID Speed,  4 Morse Audio Frequency,  5 Your Call Sign,  6 Musical Rhythm Speed,  7 (optional) Secret Lock Code,  8 (optional) Battery Connection Auto Start.

This unit is programmed by sending tones from a DTMF keypad. 
To simply this process - AA4UK wrote an abbreviated instruction sheet on setting up the PicCon for a simple fox hunt.