Rycom STICK Locating Series - Locating a Sonde

800.851.7347 www.rycominstruments.com
Hold the receiver antenna directly above and in line with the sonde, as shown
below with the receiver sensitivity adjusted for a meter reading within scale.
The radiation pattern of the sonde is shown below. The PEAK signal is when the
receiver is held directly over the sonde with the antenna in line with the sonde. Both
Ghost signals can be located behind and in front of the sonde. By locating the
ghost signals, the user is confirming the accuracy of the locate.
Locating a Sonde
Start by following the suspected path of the pipe and use the Stick Locator to
locate the sonde. Stop locating when the PEAK reading is found. Then rotate the
receiver as shown in the figure below. When pivoting the receiver, do not change
the vertical position. The receiver will indicate a PEAK when the receiver antenna is
in line with the sonde.
Now move the receiver side to side (across the path of the pipe) as shown below. When
the PEAK if found, the receiver is directly over the sonde. Mark this location. Next,
check for ghost signals in front of and in back of the sonde to confirm the location.
GHOST
GHOST
NULL NULL
PEAK
PATH
SIDE
EARTH
PIPE
MOVE THE RECEIVER
SIDE TO SIDE AND
WHEN A PEAK
SIGNAL IS FOUND,
THE RECEIVER IS
OVER THE SONDE
EARTH
PIPE
PIVOT THE RECEIVER
SO THE ANTENNA
ROTATES NOT CHANGING
THE VERTICAL POSITION
FEED THE SONDE 10 FEET INTO THE PIPE
82
kHz
82
kHz
82
kHz
10