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If you can no longer trace the path, even with the GAIN set to maximum, connect the
TransmiTTertothefarendofthepathandtracebacktothepointwhereyoulostthesignal
MarkthestraightsectionsofthepatheveryfewfeetMarksharpcurves,loops,andcable
bundleseveryfew inchesSharp changesinthepath causethe receiverPEAKand NULL
indicationstobehavedifferentlythanwhentracingastraightpathPracticeonthepath
thatyouknowhasturnsandlateralsinitThiswillhelpyoutorecognizetheconditionswithin
thefield
TracethepathbywalkingawayfromtheTransmiTTeratamoderatepaceMovethereceiver
totheleftandrightwhilewalking,followingthePEAKindications
Asyou trace thepath,the PEAKmeter readingmayslowly fadeasyou moveaway from
theTransmiTTerPressandreleasetheGAINbuttonsasneededtocompensateforchangesin
level(higherorlower)Oneofthefollowingmayoccur:
a) a junction where the signal divides and goes several directions.
b) a break in the cable or shield.
c) a change in the depth of the cable or pipe.
d) an insulated pipe fitting.
e) a slack loop of cable.
Peak Mode LocatingContinued
Move the receiver left to right across the cable path When the receiver is direct-
ly above the cable or pipe, a NULL (lowest meter reading and lowest audio tone)
will occur When moving the receiver to left or right of the NULL point, the meter
reading will rise to a maximum point (PEAK) The audio tone will also be at its
highestpitchWhenthereceiverismovedbeyondthePEAK,themeterreadingwillbeginto
fade
TracethepathbywalkingawayfromtheTransmiTTeratamoderatepaceMovethereceiver
totheleftandrightwhenwalking,followingtheNULLindications
As you trace the path, the PEAK meter reading may slowly fade as you move away from
theTransmiTTerPressandreleasetheGAINbuttonsasneededtocompensateforchanges
insignallevelIfthePEAKmeterreadingssuddenlychangesinlevel(higherorlower),oneof
thefollowingmayhaveoccurred:
a) a junction where the signal divides and goes several directions.
b) a break in the cable or shield.
c) a change in the depth of the cable or pipe.
d) an insulated pipe fitting.
e) a slack loop of cable.
Ifyoucannolongertracethepath,evenwiththeGAINcontrolsettomaximum,connect
theTransmiTTertothefarendofthepath,andbegintracingthepathback
Null Mode Locating
Markthestraight sectionof thepath everyfew feetMark sharpcurves,loops,and cable
bundles every few inches Sharp changes in the path causes the receiver PEAK and NULL
indicatorstobehavedifferentlythanwhentracingastraightpathPracticeonthepaththat
youknowhasturnsandlateralsinitThiswillhelpinrecognizingtheconditionswithinthefield
