blazer - 1/16/2008 9:01 PM
when i bought mine i checked with cabelas and they told me you can get it with either one,bass pro just shows it with transom mount.i wouldnt suggest mounting it on the front of the boat because when you tilt the unit back so you can see it,you will lose your signal on the gps..unless you order an external antenna to connect to it.i called lowrance to see if an external antenna would work and they said it would.....if you are buying one new i would suggest going with the 520c regardless were you are going to mount it.