Thanks BCB. Kevin you nailed it on the console unit, thanks. I crawled under the console and there was a tag on the transducer lead there. It is a PDRT-WBL transducer. The tag on the bow unit is either gone or down the cable under the glass. By the pictures on the Lowrance site it is either an HDI 83/200, 000-10976-001 or a HDI 50/200, 000-10977-001. Does it hurt the unit or the transducer if you set it for the wrong frequency 83/200 or 50/200? Would it be more likely the 50/200? With help Im going to get this sorted out, thank you.Last edited by dabro on February 9th, 2015, 3:12 am, edited 1 time in total.