Humminbird Side Imaging Forums
Side Imaging Forums => 1197c SI, 1198c SI & 1199ci HD SI => Topic started by: gregghainen on December 19, 2014, 08:37:54 PM
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Merry Christmas and happy holidays to all
I have a 1197si unit with a transom mount si transducer and a HB thru hull on a Y splitter with a switch. The boat is a 27 ft World cat boat, with twin Yamahas on the back. I very often lose the bottom on the rough days after about 300 feet. on really calm days I have been able to read bottom out to 800 feet. Sometimes the bottom comes back for a short time, but usually kicks out again. I can sometimes switch from one transducer to the other and this triggers the unit to reach bottom. Sometimes I will shut down the unit and re-boot and bottom will read. While drifting , it goes out but when I am motoring slowly it sometimes will come back. First Question, would a 1000watt transducer solve this problem? Would a shoot thru vrs a thru hull transducer be the answer? Could the problem be due to a catamaran hull vrs a mono hull? I have the unit set for deep saltwater. Are the returns coming back to slowly or possibly an issue with the surface clutter or ping speed? Any other settings that I can make to correct this problem? Really like the unit, and have had Great customer service when I have had problems in the past. Sure could use some good advice. Thanks in advance. Gregg
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You mention ..."HB thru hull on a Y splitter with a switch"...
Which Y splitter ...??
And which switch ...??
Regardless ... The easiest 1st test in multiple xducer setups is to disconnect all xducers, Y cables, and switches ...
Then plug the thru hull (I'm assuming "shoot thru hull"..) directly into the head unit and test ...
A. If the issue goes away ...the problem is in the cabling between the head unit and the xducer ...
B. If the issue is still present ... It can be a bad shoot thru xducer or the head unit ...
If item B is determined ... Then unplug the shoot thru and plug the transom mount HDSI directly into the head unit and test ...
C. If the issue goes away ...the problem has been narrowed down to the shoot thru xducer ...
D. If the issue is still present ...the problem is most likely in the head unit ...
Process of elimination sometimes is the best path forward ...
Rickie
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Thanks Rickie. the transom mount would always lose bottom when in deep water, every since I purchased the unit. I went with the thru hull to get bottom readings when I am running, and thinking it may help with the deep water readings. Will try the individual transducer hook ups separately when I get back down their in mid January. Thanks for the post and a very Merry Christmas to you and your family. Gregg