Garmin GT10HN-IF High Narrow Chirp TransducerGarmin GT10HN IF High Narrow Chirp Transducer The GT10HN IF ice fishing transducer is perfect for fishermen who want clear definition under the ice with excellent target separation. The narrow, 7 16 degree beam angle provides precise fish and jig detection. The 8 pin transducer features high narrow CHIRP traditional sonar and has a power rating of 500 W. Its shape and beam widths have been optimized for ice fishing, and it features a silicone coated