Range Shift will not stay zoomed

[kjohn911]

I have TZT3. I turn auto range off, on single frequency. I'm in 200' of water and only want to see the bottom 60'. I change range to 60' by hitting "+" icon. Then I slide the screen down until I see bottom 60'. It stays like that for a few seconds and then it goes back to showing the whole water column. Is this normal? Did bottom zoom replace the range shift feature?

 

[FishTech]

Bottom Range Shift controls where the bottom will appear on the display from 15-85%, with 75% being default.
You will want to use Bottom Lock, Bottom Zoom, or Marker Zoom.

 

[kjohn911]

So the feature described in this video is no longer available? Like i mentioned, it works for me as described in the video, but reverts back to displaying the whole water column after a few seconds.

 

[FishTech]

That method is working on my test unit as explained in the video. What software version are you on? What fish finder are you using?

 

[seabird]

Hi, I just had the same problem on a GP1871f. I zoom in a certain depth, and after a couple of seconds, it goes back to show the full depth range. I read in an old thread that this might be due to having Accufish and Bottom Discrimination ON. That was my case.

 

[kjohn911]

Hi, I just had the same problem on a GP1871f. I zoom in a certain depth, and after a couple of seconds, it goes back to show the full depth range. I read in an old thread that this might be due to having Accufish and Bottom Discrimination ON. That was my case.

Thanks! I will turn it off and see if it fixes the problem.

 

[kjohn911]

Thanks! I will turn it off and see if it fixes the problem.

 

[kjohn911]

@seabird Thanks again! Turning it bottom discrimination and accu-fish off fixed the issue.

 

[Mehmet Okur]

BD is a great need and nice feature for bottom fishing. But does it make sense to you that you can't do range shift when BD is working and 50/200 are both together?

 

[kjohn911]

BD is a great need and nice feature for bottom fishing. But does it make sense to you that you can't do range shift when BD is working and 50/200 are both together?

No, doesn't make sense to me. Maybe the software will be updated in the future to support it.