Humminbird Side Imaging Forums

Side Imaging Forums => 798c SI => Topic started by: ferdy on May 13, 2011, 07:11:29 PM

Title: 798 si hd
Post by: ferdy on May 13, 2011, 07:11:29 PM

I was curious if anyone knows why I'm not seeing my downrigger ball on my sonar in my home river, (St Lawrence) Upstate NY.  It showed the balls in a different body of water last week.

Title: Re: 798 si hd
Post by: Humminbird_Greg on May 14, 2011, 09:36:42 AM

Blowback (I think that is the correct term) - the downrigger ball was aft of the sonar beam due to additional current or boat speed?

Title: Re: 798 si hd
Post by: babarosa on May 15, 2011, 12:39:08 PM

my ball does not show up till atleast 14 ft of depth. At 30 to 40 feet i can see the ball and lure