Ramsey DF-1 1 - tune radio to fox channel 2 - connect antennas to DF-1, red to red, black to black 3 - make sure red antenna is on your right 4 - connect radio earphone jack to DF-1 input 5 - connect radio antenna jack to DF-1 radio antenna input 6 - (optional) connect external speaker to DF-1 output 7 - adjust volume to compfortable level 8 - make sure fox is transmitting 9 - adjust DF-1 sensitivity so meter reads 3/4 scale 10 - LEFT or RIGHT red light will turn on 11 - turn vehicle or antennas in direction indicated by lit red light 12 - when vehicle is exactly facing the fox, LEFT and RIGHT lights will flash alternately and meter will read low Works with any FM radio BUT LEFT/RIGHT indicators may be reversed. Icom IC02AT and Realistic HTX-202 are normal, Icom W32A is backwards. need to figure out Icom 2340 and 2970 direction need to arrange a mast-mount for this and the handi-finder