Deeper Sonar devices scan in a form of a cone. Area of the bottom that the sonar beam covers increases based on the depth of the area you're fishing at, as well as the beam angle you're using.
Please see the below comparison chart, which shows the diameter of the bottom covered by each beam of the Deeper CHIRP.
Depth (m) | Narrow beam | Mid beam | Wide beam | Depth (ft) | Narrow beam | Mid beam | Wide beam | ||||
675 kHz, 7° | 290 kHz, 16° | 100 kHz, 47° | 675 kHz, 7° | 290 kHz, 16° | 100 kHz, 47° | ||||||
1 | 0.12 | 0.28 | 0.87 | 3 | 0.40 | 0.92 | 2.85 | ||||
2 | 0.24 | 0.56 | 1.74 | 7 | 0.80 | 1.84 | 5.71 | ||||
3 | 0.37 | 0.84 | 2.61 | 10 | 1.20 | 2.77 | 8.56 | ||||
4 | 0.49 | 1.12 | 3.48 | 13 | 1.61 | 3.69 | 11.41 | ||||
5 | 0.61 | 1.41 | 4.35 | 16 | 2.01 | 4.61 | 14.27 | ||||
6 | 0.73 | 1.69 | 5.22 | 20 | 2.41 | 5.53 | 17.12 | ||||
7 | 0.86 | 1.97 | 6.09 | 23 | 2.81 | 6.46 | 19.97 | ||||
8 | 0.98 | 2.25 | 6.96 | 26 | 3.21 | 7.38 | 22.82 | ||||
9 | 1.10 | 2.53 | 7.83 | 30 | 3.61 | 8.30 | 25.68 | ||||
10 | 1.22 | 2.81 | 8.70 | 33 | 4.01 | 9.22 | 28.53 | ||||
11 | 1.35 | 3.09 | 9.57 | 36 | 4.41 | 10.14 | 31.38 | ||||
12 | 1.47 | 3.37 | 10.44 | 39 | 4.82 | 11.07 | 34.24 | ||||
13 | 1.59 | 3.65 | 11.31 | 43 | 5.22 | 11.99 | 37.09 | ||||
14 | 1.71 | 3.94 | 12.17 | 46 | 5.62 | 12.91 | 39.94 | ||||
15 | 1.83 | 4.22 | 13.04 | 49 | 6.02 | 13.83 | 42.80 | ||||
16 | 1.96 | 4.50 | 13.91 | 52 | 6.42 | 14.75 | 45.65 | ||||
17 | 2.08 | 4.78 | 14.78 | 56 | 6.82 | 15.68 | 48.50 | ||||
18 | 2.20 | 5.06 | 15.65 | 59 | 7.22 | 16.60 | 51.36 | ||||
19 | 2.32 | 5.34 | 16.52 | 62 | 7.63 | 17.52 | 54.21 | ||||
20 | 2.45 | 5.62 | 17.39 | 66 | 8.03 | 18.44 | 57.06 | ||||
21 | 2.57 | 5.90 | 18.26 | 69 | 8.43 | 19.37 | 59.92 | ||||
22 | 2.69 | 6.18 | 19.13 | 72 | 8.83 | 20.29 | 62.77 | ||||
23 | 2.81 | 6.46 | 20.00 | 75 | 9.23 | 21.21 | 65.62 | ||||
24 | 2.94 | 6.75 | 20.87 | 79 | 9.63 | 22.13 | 68.47 | ||||
25 | 3.06 | 7.03 | 21.74 | 82 | 10.03 | 23.05 | 71.33 | ||||
26 | 3.18 | 7.31 | 22.61 | 85 | 10.43 | 23.98 | 74.18 | ||||
27 | 3.30 | 7.59 | 23.48 | 89 | 10.84 | 24.90 | 77.03 | ||||
28 | 3.43 | 7.87 | 24.35 | 92 | 11.24 | 25.82 | 79.89 | ||||
29 | 3.55 | 8.15 | 25.22 | 95 | 11.64 | 26.74 | 82.74 | ||||
30 | 3.67 | 8.43 | 26.09 | 98 | 12.04 | 27.67 | 85.59 | ||||
31 | 3.79 | 8.71 | 26.96 | 102 | 12.44 | 28.59 | 88.45 | ||||
32 | 3.91 | 8.99 | 27.83 | 105 | 12.84 | 29.51 | 91.30 | ||||
33 | 4.04 | 9.28 | 28.70 | 108 | 13.24 | 30.43 | 94.15 | ||||
34 | 4.16 | 9.56 | 29.57 | 112 | 13.65 | 31.35 | 97.01 | ||||
35 | 4.28 | 9.84 | 30.44 | 115 | 14.05 | 32.28 | 99.86 | ||||
36 | 4.40 | 10.12 | 31.31 | 118 | 14.45 | 33.20 | 102.71 | ||||
37 | 4.53 | 10.40 | 32.18 | 121 | 14.85 | 34.12 | 105.56 | ||||
38 | 4.65 | 10.68 | 33.05 | 125 | 15.25 | 35.04 | 108.42 | ||||
39 | 4.77 | 10.96 | 33.92 | 128 | 15.65 | 35.97 | 111.27 | ||||
40 | 4.89 | 11.24 | 34.78 | 131 | 16.05 | 36.89 | 114.12 | ||||
41 | 5.02 | 11.52 | 35.65 | 135 | 16.45 | 37.81 | 116.98 | ||||
42 | 5.14 | 11.81 | 36.52 | 138 | 16.86 | 38.73 | 119.83 | ||||
43 | 5.26 | 12.09 | 37.39 | 141 | 17.26 | 39.65 | 122.68 | ||||
44 | 5.38 | 12.37 | 38.26 | 144 | 17.66 | 40.58 | 125.54 | ||||
45 | 5.50 | 12.65 | 39.13 | 148 | 18.06 | 41.50 | 128.39 | ||||
46 | 5.63 | 12.93 | 40.00 | 151 | 18.46 | 42.42 | 131.24 | ||||
47 | 5.75 | 13.21 | 40.87 | 154 | 18.86 | 43.34 | 134.10 | ||||
48 | 5.87 | 13.49 | 41.74 | 157 | 19.26 | 44.26 | 136.95 | ||||
49 | 5.99 | 13.77 | 42.61 | 161 | 19.67 | 45.19 | 139.80 | ||||
50 | 6.12 | 14.05 | 43.48 | 164 | 20.07 | 46.11 | 142.65 | ||||
51 | 6.24 | 14.34 | 44.35 | 167 | 20.47 | 47.03 | 145.51 | ||||
52 | 6.36 | 14.62 | 45.22 | 171 | 20.87 | 47.95 | 148.36 | ||||
53 | 6.48 | 14.90 | 46.09 | 174 | 21.27 | 48.88 | 151.21 | ||||
54 | 6.61 | 15.18 | 46.96 | 177 | 21.67 | 49.80 | 154.07 | ||||
55 | 6.73 | 15.46 | 47.83 | 180 | 22.07 | 50.72 | 156.92 | ||||
56 | 6.85 | 15.74 | 48.70 | 184 | 22.47 | 51.64 | 159.77 | ||||
57 | 6.97 | 16.02 | 49.57 | 187 | 22.88 | 52.56 | 162.63 | ||||
58 | 7.09 | 16.30 | 50.44 | 190 | 23.28 | 53.49 | 165.48 | ||||
59 | 7.22 | 16.58 | 51.31 | 194 | 23.68 | 54.41 | 168.33 | ||||
60 | 7.34 | 16.86 | 52.18 | 197 | 24.08 | 55.33 | 171.19 | ||||
61 | 7.46 | 17.15 | 53.05 | 200 | 24.48 | 56.25 | 174.04 | ||||
62 | 7.58 | 17.43 | 53.92 | 203 | 24.88 | 57.18 | 176.89 | ||||
63 | 7.71 | 17.71 | 54.79 | 207 | 25.28 | 58.10 | 179.75 | ||||
64 | 7.83 | 17.99 | 55.66 | 210 | 25.69 | 59.02 | 182.60 | ||||
65 | 7.95 | 18.27 | 56.53 | 213 | 26.09 | 59.94 | 185.45 | ||||
66 | 8.07 | 18.55 | 57.40 | 217 | 26.49 | 60.86 | 188.30 | ||||
67 | 8.20 | 18.83 | 58.26 | 220 | 26.89 | 61.79 | 191.16 | ||||
68 | 8.32 | 19.11 | 59.13 | 223 | 27.29 | 62.71 | 194.01 | ||||
69 | 8.44 | 19.39 | 60.00 | 226 | 27.69 | 63.63 | 196.86 | ||||
70 | 8.56 | 19.68 | 60.87 | 230 | 28.09 | 64.55 | 199.72 | ||||
71 | 8.69 | 19.96 | 61.74 | 233 | 28.49 | 65.48 | 202.57 | ||||
72 | 8.81 | 20.24 | 62.61 | 236 | 28.90 | 66.40 | 205.42 | ||||
73 | 8.93 | 20.52 | 63.48 | 240 | 29.30 | 67.32 | 208.28 | ||||
74 | 9.05 | 20.80 | 64.35 | 243 | 29.70 | 68.24 | 211.13 | ||||
75 | 9.17 | 21.08 | 65.22 | 246 | 30.10 | 69.16 | 213.98 | ||||
76 | 9.30 | 21.36 | 66.09 | 249 | 30.50 | 70.09 | 216.84 | ||||
77 | 9.42 | 21.64 | 66.96 | 253 | 30.90 | 71.01 | 219.69 | ||||
78 | 9.54 | 21.92 | 67.83 | 256 | 31.30 | 71.93 | 222.54 | ||||
79 | 9.66 | 22.21 | 68.70 | 259 | 31.71 | 72.85 | 225.39 | ||||
80 | 9.79 | 22.49 | 69.57 | 262 | 32.11 | 73.77 | 228.25 | ||||
81 | 9.91 | 22.77 | 70.44 | 266 | 32.51 | 74.70 | 231.10 | ||||
82 | 10.03 | 23.05 | 71.31 | 269 | 32.91 | 75.62 | 233.95 | ||||
83 | 10.15 | 23.33 | 72.18 | 272 | 33.31 | 76.54 | 236.81 | ||||
84 | 10.28 | 23.61 | 73.05 | 276 | 33.71 | 77.46 | 239.66 | ||||
85 | 10.40 | 23.89 | 73.92 | 279 | 34.11 | 78.39 | 242.51 | ||||
86 | 10.52 | 24.17 | 74.79 | 282 | 34.51 | 79.31 | 245.37 | ||||
87 | 10.64 | 24.45 | 75.66 | 285 | 34.92 | 80.23 | 248.22 | ||||
88 | 10.76 | 24.74 | 76.53 | 289 | 35.32 | 81.15 | 251.07 | ||||
89 | 10.89 | 25.02 | 77.40 | 292 | 35.72 | 82.07 | 253.93 | ||||
90 | 11.01 | 25.30 | 78.27 | 295 | 36.12 | 83.00 | 256.78 | ||||
91 | 11.13 | 25.58 | 79.14 | 299 | 36.52 | 83.92 | 259.63 | ||||
92 | 11.25 | 25.86 | 80.01 | 302 | 36.92 | 84.84 | 262.49 | ||||
93 | 11.38 | 26.14 | 80.88 | 305 | 37.32 | 85.76 | 265.34 | ||||
94 | 11.50 | 26.42 | 81.74 | 308 | 37.72 | 86.69 | 268.19 | ||||
95 | 11.62 | 26.70 | 82.61 | 312 | 38.13 | 87.61 | 271.04 | ||||
96 | 11.74 | 26.98 | 83.48 | 315 | 38.53 | 88.53 | 273.90 | ||||
97 | 11.87 | 27.26 | 84.35 | 318 | 38.93 | 89.45 | 276.75 | ||||
98 | 11.99 | 27.55 | 85.22 | 322 | 39.33 | 90.37 | 279.60 | ||||
99 | 12.11 | 27.83 | 86.09 | 325 | 39.73 | 91.30 | 282.46 | ||||
100 | 12.23 | 28.11 | 86.96 | 328 | 40.13 | 92.22 | 285.31 |