Tzt 2 with ddf1-uhd and airmar B275 LHW settings recommendations for bluefin on west coast

[KonaMike]

I am looking for suggestions on settings while fishing Bluefin tuna in deep water. Most of the fish are in the water column of 100 - 400 ft.
That's depending on day or night time. The night fish are generally deeper that 150 ft.
Also have the CH 500 side scan with ddf3 for searching outside. There's a furuno 588 as well and wondering if that's interference to the airmar B275.
How do I get the best performance with the equipment I now have?
I was around fish this past weekend and when using the ch 500 looking below the boat I was able to see single larger fish at 300' during the day but nothing with the tzt 2 with the airmar.
588 registered fish as well on the same mark.
Didn't take any screenshot but I will soon on my trip this coming weekend.

 

[Johnny Electron]

@Deep Blue @C-Bass

 

[Deep Blue]

KonaMike,

Do you know what frequency of the CH500 Searchlight Sonar is, or what is the current transducer that is connected to your FCV588..? The DFF3D uses a fixed frequency of 165kHz

Here are some settings for the CH500 that can help you with Bluefin Tuna:

When fishing in Deep Water:
Use RANGE no more than 500 feet, and a TILT Angle of 26 degrees.

When fishing in Shallow Water:
Use RANGE no more than 300 feet, with a Tilt Angle of 12 degrees

You can also adjust these CH500 SYSTEM Settings to help in the detection of Bluefin Tuna:

COM1:
TX Power - High
TX Pulse Length - Long
TX Rate - 10
Interference - ON
AGC - 1
Auto Filter - Standard

COM2:
Echo Color - 16
Bearing - Relative

Horizontal:
TVG Level - 3
TVG Distance - 3
Gain Adjust - 1
Res. Color - Linear
Clutter - 2

Vertical:
TVG Level - 2.5
TVG Distance - 3
Gain Adjust - 2
Res. Color - Linear
Clutter - 2

Echo/Sounder:
TVG Level - 4
TVG Distance - 4
Gain Adjust - 0
Res. Color - Log
Clutter - 0

- Deep Blue

 

[KonaMike]

KonaMike,

Do you know what frequency of the CH500 Searchlight Sonar is, or what is the current transducer that is connected to your FCV588..? The DFF3D uses a fixed frequency of 165kHz

Here are some settings for the CH500 that can help you with Bluefin Tuna:

When fishing in Deep Water:
Use RANGE no more than 500 feet, and a TILT Angle of 26 degrees.

When fishing in Shallow Water:
Use RANGE no more than 300 feet, with a Tilt Angle of 12 degrees

You can also adjust these CH500 SYSTEM Settings to help in the detection of Bluefin Tuna:

COM1:
TX Power - High
TX Pulse Length - Long
TX Rate - 10
Interference - ON
AGC - 1
Auto Filter - Standard

COM2:
Echo Color - 16
Bearing - Relative

Horizontal:
TVG Level - 3
TVG Distance - 3
Gain Adjust - 1
Res. Color - Linear
Clutter - 2

Vertical:
TVG Level - 2.5
TVG Distance - 3
Gain Adjust - 2
Res. Color - Linear
Clutter - 2

Echo/Sounder:
TVG Level - 4
TVG Distance - 4
Gain Adjust - 0
Res. Color - Log
Clutter - 0

- Deep Blue

Thank you Deep Blue for your information and help with setting of the ch500. The frequency of the ch500 is 180 kHz.
The FCV 588 has an Airmar 556TID-HDD and has 50 /200 with beam angle 20 and 6.
The Airmar B275 LHW needs to be tuned in as well and is the new addition to the setup we have.