I currently have old Simrad equipment which is starting to fail due to age, exposure and use. I was just given a Furuno RPU-139, ETR-6/10N 50/200 Network Sounder, C2000 Heading Sensor and a RSB 0070 Radar Array. From all of the research I have done I have determined that the transducer in my boat is a Simrad Combi 38/200. I know that the ETR-6/10N Network Sounder I have will not work with the Simrad Combi 38/200. The transducer is glassed into the as a thru hull mount and I would prefer to find a Furuno network sounder that will work with the Simrad 38/200 transducer rather that getting into replacing the transducer. Any help would be greatly appreciated.