7. Receiver Modes
A. Directional Peak (Dir Pk)
Locate/OK [5] + Cable/Pipe [SK] + Mode [SK] + Dir Pk [SK Toggle]
In Dir Pk mode, four peak antennas are used to analyze the magnetic field pattern. The Bar Graph [1l] indicates Signal Strength [10] and the directional arrows sense the edges of the magnetic field. The left/right arrows will indicate the direction to the nearest cable that is
As the antenna crosses the cable or pipe, the receiver speaker volume increases to a maximum, the Bar Graph [1l] fills from both sides toward the middle, and the numeric Signal Strength [10] increases. As the antenna moves off the target path, the speaker volume decreases and the Bar Graph [1l] opens. Use the Bar Graph [1l] and the numeric Signal Strength [10] value to locate the exact target path.
Left of Target Path | Directly Over Target Path | Right of Target Path |
Once the target path has been located, the arrows at the top of the display will indicate the location of the target path in relationship to the receiver.
Note: When field distortion (due to congestion) is affecting the receiver the left/right arrows may not coincide with the bar graph. Use the maximum numerical signal strength to target the cable or pipe.
B. Directional Null (DirNull)
Locate/OK [5] + Cable/Pipe [SK] + Mode [SK] + DirNull [SK Toggle]
In DirNull mode, as the operator approaches the cable or pipe, the numerical Signal Strength [10] will increase then fall sharply as the receiver crosses the target cable or pipe. The Bar Graph [1l] fills from both sides toward the middle and the receiver speaker volume decreases. As the antenna moves off the target path, the Bar Graph [1l] opens, the Signal Strength [10] increases, and the speaker volume increases. Gain adjust is automatic in DirNull mode.
The center of the DirNull display provides a ‘compass view' of the target path. An arrow will point toward the location of the cable/pipe in
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