A light weight surveying pole which is of robust and highly accurate construction. 11 network includes: WiFi phone devices, subscription servers and wireless access points. The markings assist a surgeon in determining a preferred placement and orientation of the anchor at an operative site during a surgical procedure. The device further includes at least one control input coupled to at least the frequency divider circuit and the PLL circuit for specifying one of the plurality of VCOs and one of the plurality of frequency division ratios of the frequency divider circuit. In one embodiment of the invention, the consumer products are \u201cbroken\u201d into discrete, separately-manufacturable pieces, each piece for assembly by a separate, geographically remote, skilled labor with final assembly of the various pieces is performed at a centralized location. Safety features ensure protection of the rider and of observers.