Dark area on side scan?

**kosmo** · 11-25-2016, 12:51 PM

Anyone no what's causing this dark area? This is 800kHz on 998...

**mduncan62** · 11-25-2016, 05:20 PM

Looks like you have some interference on the right side, at the boat.

**ShilohRed** · 11-25-2016, 06:13 PM

Softer bottom shows up as darker then hard bottom.
Pete

**kfi** · 11-25-2016, 07:02 PM

Originally Posted by ShilohRed

Softer bottom shows up as darker then hard bottom.
Pete

Agree. Soft bottom is dark. Hard bottom is lighter.

Sent from my iPhone using Tapatalk

**kosmo** · 11-25-2016, 07:56 PM

Originally Posted by kfi

Agree. Soft bottom is dark. Hard bottom is lighter.

Sent from my iPhone using Tapatalk

I agree with ya'll about there being a soft bottom.But why does only happen on the 800kHz, not 455kHz. ?

**kosmo** · 11-25-2016, 08:05 PM

Here it is again.this is on the onix..

.....

**Cane Pole** · 11-25-2016, 08:41 PM

Why are the depths different? Are these different locations?

**kosmo** · 11-25-2016, 08:56 PM

Originally Posted by Cane Pole

Why are the depths different? Are these different locations?

I would say ,that most likely possibly could be

**kosmo** · 11-25-2016, 08:58 PM

Originally Posted by Cane Pole

Why are the depths different? Are these different locations?

That dark area runs the length of the shot

**rnvinc** · 11-25-2016, 09:14 PM

This one looks like the "Ghost Lines" phenomenon when SI piezoes and a DI piezo are transmitting in the same xducer housing ...

-----
-----

This one looks like the DI transmitter is shut off and only the SI piezoes are transmitting ...

Rickie

Thread: Dark area on side scan?