particular form of locating signal such as for example a dipole field each of the subject figures further illustrates a drill head pitch 406 using an appropriate symbol below which appears a current pitch measurement 408 in the present example the latter is shown as 2 8 and is indicated as being upward by symbol 406 a signal strength indication 410 is indicated in one corner of display 400 in the present example the indicated signal strength is u201c 523 u201d the upper right hand corner of display 400 includes a roll indicator 420 in the form of a clock face it is noted that these various display elements may be reorganized in any appropriate manner or combination based on a particular application and the present figures are in no way intended as being limiting referring specifically to fig1 a a query 422 is being presented to the operator requesting confirmation of an initial request to set a new roll offset the operator may set a new roll offset by selecting u201c y u201d for yes or may cancel by selecting u201c n u201d for no it is noted that roll indicator 420 is illustrating an actual or uncompensated roll value of 4 o 39 clock of course if the operator selects u201c n u201d the appearance of roll indicator 420 will be unchanged fig1 b illustrates the appearance of display 400 when u201c y u201d is selected in the display of fig1 a specifically roll indicator 420 illustrates a.