Everyone thanks much for your information...great help. After checking my Elite 7 HDI I discovered it does have an "ICE" mode. This is available under the menu options Sonar-->Fishing Mode-->Ice. Second I also discovered that there is a "flasher" option. To get there I navigated to Sonar-->Sonar Options-->Split Flasher. This puts it in a split screen mode with the flasher on 2/3 of the page and the sonar on the other 1/3. Not that it's a huge deal but I can't figure out how to get the flasher on the entire screen. If anyone knows how to do that on the Elite 7HDI let me know???
Also I called Lowrance Customer Service and the rep told me I need to buy an ICE DUCER part # PTI-WSU ($70 from Lowrance). I also need to purchase some sort of adapter (part #10052-001, $35 from Lowrance). I wasn't clear what the adapter is for but would guess it allows me to hook up ice ducer to the unit. Last I would need to buy a battery for my power source. Stupid question bare with the newbie but can someone give me guidance on what type/kind of battery I should buy???
Last unless I can find an ice pack that fits this unit I would probably rig something up in a 5 gallon bucket. Any concerns with cold weather issues and sonars if it gets below zero??? Thank you!