which will be described in detail at an appropriate point hereinafter the boring tool is equipped with a pitch sensor not shown for measurement of its pitch orientation as is described for example in the 39 442 patent as is also well known the pitch orientation and other parameters of interest can be modulated onto the homing signal for remote reception and decoding in other embodiments measured parameters can be transferred to the drill rig using a wire in pipe configuration such as is described for example in u s pat no 7 150 329 entitled auto extending retracting electrically isolated conductors in a segmented drill string which is commonly owned with the present application and incorporated herein by reference the parameters may be used at the drill rig and or transferred to a remote location for example by telemetry section 62 it is noted however that the measurement of yaw is not necessary and therefore there is no need for a yaw sensor in the boring tool it is well known that yaw angle is a parameter that is generally significantly more difficult to measure as compared to pitch orientation accordingly there is some benefit associated with techniques such as described herein which do not rely on measured yaw orientation fig3 is a diagrammatic view in.