D
IGITAL
C
ONTROL
I
NCORPORATED
72
DigiTrak Falcon F5® Operator's Manual
Pitch →
Actual Depth ↓
±10%
(5.7°)
±20%
(11°)
±30%
(17°)
±40%
(22°)
±50%
(27°)
±60%
(31°)
±75%
(37°)
±90%
(42°)
±100%
(45°)
1.52 m
1.52 m
1.57 m
1.60 m
1.68 m
1.73 m
1.80 m
1.91 m
1.98 m
2.29 m
3.05 m
3.07 m
3.12 m
3.23 m
3.33 m
3.45 m
3.58 m
3.78 m
3.96 m
4.57 m
4.57 m
4.60 m
4.70 m
4.83 m
5.00 m
5.18 m
5.38 m
5.66 m
5.94 m
6.86 m
6.10 m
6.12 m
6.25 m
6.45 m
6.68 m
6.91 m
7.16 m
7.54 m
7.92 m
9.14 m
7.62 m
7.67 m
7.82 m
8.05 m
8.36 m
8.64 m
8.97 m
9.45 m
9.91 m
11.43 m
9.14 m
9.19 m
9.37 m
9.68 m
10.01 m
10.36 m
10.74 m
11.33 m
11.89 m
13.72 m
10.67 m
10.72 m
10.95 m
11.28 m
11.68 m
11.18 m
12.55 m
13.21 m
13.87 m
16.00 m
12.19 m
12.24 m
12.50 m
12.88 m
13.36 m
13.82 m
14.33 m
15.11 m
15.85 m
18.29 m
13.72 m
13.79 m
14.07 m
14.50 m
15.01 m
15.54 m
15.90 m
16.99 m
17.83 m
11.43 m
15.24 m
15.32 m
15.62 m
16.10 m
16.69 m
17.27 m
17.91 m
18.87 m
19.79 m
22.86 m
Table C3: Determining Projected Depth from Actual Depth and Pitch
Use the actual depth values in the first column and transmitter pitches in the first row to find projected depth
values.
Pitch →
±10%
(5.7°)
±20%
(11°)
±30%
(17°)
±40%
(22°)
±50%
(27°)
±60%
(31°)
±75%
(37°)
±90%
(42°)
From Actual to Projected Depth
1.005
1.025
1.06
1.105
1.155
1.212
1.314
1.426
From Projected to Actual Depth
0.995
0.975
0.943
0.905
0.866
0.825
0.761
0.701
Table C4: Conversion Factors for Calculating Exact Projected Depth or Actual Depth
Table C4 helps calculate the exact projected depth reading as well as the actual depth using a multiplier
(conversion factor) at different transmitter pitches.
For example, if you have a required (actual) depth of 7.32 m and want the receiver’s projected depth reading
at a 30% (17°) pitch, use the first row of conversion factors to select the corresponding value for a pitch of
30%, which is 1.06. Multiply this value by the required depth of 7.32. The result, 7.75 m, is what the
receiver’s projected depth reading should be at the locate line.
Using the projected depth displayed on the receiver, you can calculate the actual depth of the transmitter
using the second row of conversion factors. For example, if your pitch is 30% and your projected depth
reading is 7.32 m, multiply depth 7.32 by conversion factor 0.943. The result, 6.90 m, is the actual depth of
the transmitter.
