-the below was a post of mine a good while back, when the units work, they work well, but i have sent back several of these for various reasons, they finally got me an acceptable 997, but my 917 still has electrical problems... they tried putting new guts in it and finally sent me a new one, same old story.. to be honest, i am fed up with their malfunctions, but at the same time, when they work i wouldn't have it any other way... i have talked with two other people who have had the same problems, but there are plenty of people out there who haven't had one problem. i sure hope your luck is better than mine

"i purchased a 997 and a 917 back in the fall, the side scan unit produced unbelieveable detail and i was very impressed, with the interlink, i was able to chart with the 997 and get directions for trolling on the front mounted 917 but now both my 997 and my 917 have failed and are being sent back to hummin bird

both failed due to moisture, the 917's buttons were hard to push and the screen froze everytime i cranked the motor,(fresh battery, good connections, 2 fuses, and no voltage surge) just a bum unit

they are in the process of fixing these items and sending them back, i hope none have you have had the same problems"