deeper START - How to find fish using Detailed imaging mode?; Using Fish Icons method

If you put your Deeper CHIRP+ in a fish tank, cup, bucket, bathtub, or similar container at home you will be able to
turn the device on and pair it with your mobile device. But most likely the device won’t be able to scan properly –
you will probably just see an empty screen and the status message:Too shallow or too deep.
If your CHIRP+ is set to Narrow CHIRP (7°), you may even see “phantom” fishes and other strange readings on the
screen.
This is normal, Deeper sonar is designed for scanning in wide open waters like rivers, lakes, and the sea. In small,
shallow and enclosed waters the sonar tries to scan, but receives too many sonar returns from the bottom and
walls of your tank and cannot make an accurate reading. Read more aboutHow Sonars Work.
How to find fish using Detailed imaging mode?
(PRO/PRO+/CHIRP)
There are 2 ways you can detect fish and determine their size using the Deeper Sonar PRO and CHIRP models: by
using Fish Icons or Detailed sonar screen mode (having Fish icons OFF)
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1. Using Fish Icons method
Fish Icons option is the easiest way to locate fishes, and something that can be used if you don't have experience
in reading the sonar screen. However, it is less accurate.
When Fish Icons are enabled, special algorithms will analyze the sonar screen and mark ultrasound reflections from
fish with fish icons. There will be 3 different sized fish icons according to the discovered fish sizes. If you choose to
use this option, here are the best-suited settings of your Deeper sonar:
Sonar display: Detailed (Raw)
Beam angle: Any
Fish Icons: ON
Sensitivity: 70-90%, but can be reduced if the water is murky, or if you're targeting big fishes only.