Thread: Still learning

I see that sometimes when in current. My boat is an old aluminum boat with rivets and in current I see that sometimes according to how swift it’s moving and I’m moving. So could be prop wash or something creating similar bubbles from the current passing under your hull.

I know very little about HB units, so I'm not the one to ask ... but, I was curious as to the 420-520kHz setting. Is there not a higher kHz setting ?? Maybe Rickie will enlighten both of us.

I know 455kHz is better for clearer images at depth/distance & 800kHz is better for clearer images in shallower depths/shorter distances ... which is why I have my DI unit set on 800kHz (as I'm rarely looking for anything past 25ft deep).

Originally Posted by CrappiePappy

I know very little about HB units, so I'm not the one to ask ... but, I was curious as to the 420-520kHz setting. Is there not a higher kHz setting ?? Maybe Rickie will enlighten both of us.

I know 455kHz is better for clearer images at depth/distance & 800kHz is better for clearer images in shallower depths/shorter distances ... which is why I have my DI unit set on 800kHz (as I'm rarely looking for anything past 25ft deep).

I did not know the difference. I think that was the default setting. I will try a different frequency if I get out again tomorrow


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Originally Posted by Jman5626

I did not know the difference. I think that was the default setting. I will try a different frequency if I get out again tomorrow

Press the check mark button to change frequencies ...

Is your unit a 7 MEGA ...??

Rickie

Originally Posted by rnvinc

Press the check mark button to change frequencies ...

Is your unit a 7 MEGA ...??

Rickie

No. Helix 7 si gps chirp g2n


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Originally Posted by Jman5626

No. Helix 7 si gps chirp g2n

HELIX 7 SI CHIRP G2N only has 455kHz imaging ...

You can “upgrade” the xducer to the XHS 9 HDSI 180 T and get somewhat better SI images ... the XHS 9 HDSI 180 T has longer SI piezoes which produces a thinner SI beam (more detail) ...

Learn more here:
HD vs Compact transducer

Rickie