Humminbird Side Imaging Forums

Side Imaging Forums => 997c SI, 998c SI & 999ci HD SI => Topic started by: ali sevinç on November 11, 2013, 06:16:30 AM

Title: how to see 998 c sı 150 meters under deep action
Post by: ali sevinç on November 11, 2013, 06:16:30 AM

hi friends. ı live in türkiye.and hunt marmara sea. marmara sea is wery deep line here. but vertical line. 70 mt anf go 2 mt maybe then 120 mt. very vertical. ı want see this action. how?? maybe new buy acsesuar. maybe dont sea this fisfinder,buy a new diffirent fishfinder. please help me..

Title: Re: how to see 998 c sı 150 meters under deep action
Post by: Rüdiger on November 12, 2013, 11:03:44 AM

Hi Ali

Welcome to the forum :D
150m for modern echo sounders are not a problem, but if you will operate at this depth, side scanning, you need a unit with a towfish.
For Hummingbird you have to build this yourself. With a cable length of up to now proven ca.110m a depth of only ca. 90m can be achieved. (Tow depth without wings about 1/3 of the cable length 45m plus range of the transducher).
Want to scan deeper it is very expensive, Profesional Used equipment is sometimes found in the following forum:
http://www.geotech1.com/forums/forum.php (http://www.geotech1.com/forums/forum.php)

mvh
Rüdiger