
Originally Posted by
Humminbird_Greg
Maachuu,
Like Doug said: it will depend on when the 798c Si unit was actually produced.
We started installing the 4.780 version software, which gave the 798 Down Imaging, into the 798 units we produced just after the first of he year. So if your unit was produced after that it should have the Down Imaging sonar feature in it. If not, you will have to perform a software update for your unit to get it.
Blairarnold,
I would make a point of checking for a new software update monthly if it is a current model unit and less so if it is a model from last year or another previous year. If you are on this or other fishing boards though you may just reply on hearing about a new software update for your unit as we try to announce them (which reminds me that I need to check for updates for my units…).