User's Manual

Appendix B
70 DigiTrak
®
SE™ Operator’s Manual
Table B2. Determining Fore/Aft Offset from Displayed (Projected) Depth and Pitch
Pitch→
Displayed
Depth ↓
±10%
(5.7°)
±20%
(11°)
±30%
(17°)
±40%
(22°)
±50%
(27°)
±60%
(31°)
±75%
(37°)
±90%
(42°)
±100%
(45°)
5'
(1.52 m)
4"
(0.10 m)
8"
(0.20 m)
11"
(0.28 m)
1' 3"
(0.38 m)
1' 7"
(0.48 m)
1' 9"
(0.53 m)
2' 1"
(0.64 m)
2' 5"
(0.74 m)
2' 6"
(0.76 m)
10'
(3.05 m)
8"
(0.20 m)
1' 4"
(0.41 m)
1' 11"
(0.58 m)
2' 6"
(0.76 m)
3' 1"
(0.94 m)
3' 6"
(1.07 m)
4' 2"
(1.27 m)
4' 9"
(1.45 m)
5'
(1.52 m)
15'
(4.57 m)
1'
(0.30 m)
2'
(0.61 m)
2' 11"
(0.89 m)
3' 9"
(1.14 m)
4' 7"
(1.40 m)
5' 4 "
(1.63 m)
6' 3"
(1.91 m)
7' 1"
(2.16 m)
7' 6"
(2.29 m)
20'
(6.10 m)
1' 4"
(0.41 m)
2' 7"
(0.79 m)
3' 10"
(1.17 m)
5'
(1.52 m)
6' 1"
(1.85 m)
7' 1"
(2.16 m)
8' 4"
(2.54 m)
9' 6"
(2.90 m)
10'
(3.05 m)
25'
(7.62 m)
1' 8"
(0.51 m)
3' 3"
(0.99 m)
4' 10"
(1.47 m)
6' 3"
(1.91 m)
7' 7"
(2.31 m)
8' 10"
(2.69 m)
10' 5"
(3.18 m)
11' 10"
(3.61 m)
12' 6"
(3.81 m)
30'
(9.14 m)
2'
(0.61 m)
3' 11"
(1.19 m)
5' 10"
(1.78 m)
7' 6"
(2.29 m)
9' 2"
(2.79 m)
10' 7"
(3.23 m)
12' 6"
(3.81 m)
14' 2"
(4.32 m)
15'
(4.57 m)
35'
(10.67 m)
2' 4"
(0.71 m)
4' 7"
(1.40 m)
6' 9"
(2.06 m)
8' 9"
(2.67 m)
10' 8"
(3.25 m)
12' 5"
(3.78 m)
14' 8"
(4.47 m)
16' 7"
(5.05 m)
17' 6"
(5.33 m)
40'
(12.19 m)
2' 8"
(0.81 m)
5' 3"
(0.69 m)
7' 9"
(2.36 m)
10'
(3.05 m)
12' 2"
(3.71 m)
14' 2"
(4.32 m)
16' 9"
(5.11 m)
18' 11"
(5.77 m)
20'
(6.10 m)
45'
(13.72 m)
3'
(0.91 m)
5' 11"
(1.80 m)
8' 8"
(2.64 m)
11' 4"
(3.45 m)
13' 8"
(4.17 m)
15' 11"
(4.85 m)
18' 10"
(5.74 m)
21' 3"
(6.48 m)
22' 6"
(6.86 m)
50'
(15.24 m)
3' 4"
(1.02 m)
6' 7"
(2.01 m)
9' 4"
(2.84 m)
12' 7"
(3.84 m)
15' 3"
(4.65 m)
17' 8"
(5.38 m)
20' 11"
(6.38 m)
23' 8"
(7.21 m)
25'
(7.62 m)
Table B3 lists the actual depths in 5 ft (1.52 m) increments in the first column and provides projected
depth values at different transmitter pitches.
Table B3. Determining Projected Depth from Actual Depth and Pitch
Pitch→
Actual
Depth ↓
±10%
(5.7°)
±20%
(11°)
±30%
(17°)
±40%
(22°)
±50%
(27°)
±60%
(31°)
±75%
(37°)
±90%
(42°)
±100%
(45°)
5'
(1.52 m)
5'
(1.52 m)
5' 2"
(1.57 m)
5' 3"
(1.60 m)
5' 6"
(1.68 m)
5' 8"
(1.73 m)
5' 11"
(1.80 m)
6' 3"
(1.91 m)
6' 6"
(1.98 m)
7' 6"
(2.29 m)
10'
(3.05 m)
10' 1"
(3.07 m)
10' 3"
(3.12 m)
10' 7"
(3.23 m)
10' 11"
(3.33 m)
11' 4"
(3.45 m)
11' 9"
(3.58 m)
12' 5"
(3.78 m)
13'
(3.96 m)
15'
(4.57 m)
15'
(4.57 m)
15' 1"
(4.60 m)
15' 5"
(4.70 m)
15' 10"
(4.83 m)
16' 5"
(5.00 m)
17'
(5.18 m)
17' 8"
(5.38 m)
18' 7"
(5.66 m)
19' 6"
(5.94 m)
22' 6"
(6.86 m)
20'
(6.10 m)
20' 1"
(6.12 m)
20' 6"
(6.25 m)
21' 2"
(6.45 m)
21' 11"
(6.68 m)
22' 8"
(6.91 m)
23' 6"
(7.16 m)
24' 9"
(7.54 m)
26'
(7.92 m)
30'
(9.14 m)
25'
(7.62 m)
25' 2"
(7.67 m)
25' 8"
(7.82 m)
26' 5"
(8.05 m)
27' 5"
(8.36 m)
28' 4"
(8.64 m)
29' 5"
(8.97 m)
31'
(9.45 m)
32' 6"
(9.91 m)
37' 6"
(11.43 m)
30'
(9.14 m)
30' 2"
(9.19 m)
30' 9"
(9.37 m)
31' 9"
(9.68 m)
32' 10"
(10.01 m)
34'
(10.36 m)
35' 3"
(10.74 m)
37' 2"
(11.33 m)
39'
(11.89 m)
45'
(13.72 m)
35'
(10.67 m)
35' 2"
(10.72 m)
35' 11"
(10.95 m)
37'
(11.28 m)
38' 4"
(11.68 m)
36' 8"
(11.18 m)
41' 2"
(12.55 m)
43' 4"
(13.21 m)
45' 6"
(13.87 m)
52' 6"
(16.00 m)
40'
(12.19 m)
40' 2"
(12.24 m)
41'
(12.50 m)
42' 3"
(12.88 m)
43' 10"
(13.36 m)
45' 4"
(13.82 m)
47'
(14.33 m)
49' 7"
(15.11 m)
52'
(15.85 m)
60'
(18.29 m)
45'
(13.72 m)
45' 3"
(13.79 m)
46' 2"
(14.07 m)
47' 7"
(14.50 m)
49' 3"
(15.01 m)
51'
(15.54 m)
52' 2"
(15.90 m)
55' 9"
(16.99 m)
58' 6"
(17.83 m)
67' 6"
(11.43 m)
50'
(15.24 m)
50' 3"
(15.32 m)
51' 3"
(15.62 m)
52' 10"
(16.10 m)
54' 9"
(16.69 m)
56' 8"
(17.27 m)
58' 9"
(17.91 m)
61' 11"
(18.87 m)
64' 11"
(19.79 m)
75'
(22.86 m)