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#10813554 - 05/02/15 10:53 AM Bad sonar on humminbird 997c
Hunter's Dad Offline
Pro Angler

Registered: 01/29/09
Posts: 899
Loc: Between Rayburn and Toledo
I am not getting a good reading from my Humminbird 997c. I was having trouble with the side imaging but recently the sonar starting reading bad as well. I get a bottom reading but the display only shows a very faint line. I upped the sensitivity but that doesn't seem to help. I installed a new transducer because I thought that was the problem but it hasn't helped. Any settings I can try? I restored defaults but that didn't help either.
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#10814815 - 05/03/15 01:16 AM Re: Bad sonar on humminbird 997c [Re: Hunter's Dad]
Ltcm09 Offline
Outdoorsman

Registered: 05/27/14
Posts: 228
Sounds like you mounted your transducer in the wrong place.

I suggest you post pictures of whats going on.

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#10815381 - 05/03/15 12:54 PM Re: Bad sonar on humminbird 997c [Re: Ltcm09]
Hunter's Dad Offline
Pro Angler

Registered: 01/29/09
Posts: 899
Loc: Between Rayburn and Toledo
Originally Posted By: Ltcm09
Sounds like you mounted your transducer in the wrong place.

I suggest you post pictures of whats going on.



Transducer is mounted same place as other one was and it worked great for 2 years. I sanded hull and made sure to get a good stick. Getting same reading now as I did before I replaced transducer so I think that can be eliminated. I will try to get a screen shot today to show what I am seeing.
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#10827326 - 05/07/15 10:20 PM Re: Bad sonar on humminbird 997c [Re: Hunter's Dad]
David Medler Offline
Pro Angler

Registered: 12/17/10
Posts: 568
Loc: Pottsboro, Tx.
I'm having the same problem with my 997 mounted on the TM. Please share any info you get.

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#10831632 - 05/09/15 08:47 PM Re: Bad sonar on humminbird 997c [Re: Hunter's Dad]
leanin post Offline
TFF Celebrity

Registered: 08/18/09
Posts: 5543
Loc: TEXAS
run the units diagnostic menu. also make sure the plug is connected good, and the sonar isnt turned off
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