Poll: What depth sounder frequency do you use?

[B_Alex]

Grad student doing research on depth sounders, looking to gain info on prevalence:

If you have a depth sounder, what frequency do you normally keep it at?

• 50 kHz
• 200 kHz
• Other

Are you:

• Recreational boater
• Commercial mariner
• Both
• Other

Any other comments?

THANK YOU!

[Mike OReilly]

Where’s the option for: Don’t know?

I could look it up I suppose, but I really don’t know what mine is. I just know it works fine.