Transducer Coverage
The area covered by the transmitted sound waves is determined by the cone angle of the transducer and the water depth. Using Garmin’s standard 20° transducer, the coverage is approximately 1/3rd of the water depth. As shown in Example 1, the coverage area at a 30 foot depth is approximately a 10 foot diameter circle. The scale below illustrates how coverage increases as depth increases.
Coverage | 1' | Depth |
Diameter | 3' |
2'6'
3'9'
4'12'
5'15'
6'18'
On the Water
Transducer CoverageCoverage | 4" |
| Depth | |
Diameter | 3' | |||
| ||||
|
|
| ||
| 10" | 6' |
|
15"9'
20"12'
25"15'
30"
18'
35"21'
7'21'
8'24'
9'27'
40"
45"
45"
24'
27'
30'
10'30'
Example 1.
8° Transducer Coverage Chart
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