A flexible resistive tip cable assembly comprising: a probe Radio Frequency connector (310, 400, 631) structured to receive a RF differential signal; a testing connection assembly (330, 600); and a coaxial cable (320, 500, 630) structured to conduct the RF differential signal between the probe RF connector (310, 400, 631) and the testing connection assembly (330, 600), the coaxial cable (320, 500, 630) including: a cable for conducting the differential signal, and a plurality of magnetic elements (421, 521) structured as rings surrounding the coaxial cable, positioned along a length of the cable and structured to isolate the differential signal from common mode interference, wherein each magnetic element (421, 521) is separated from adjacent magnetic elements (421, 521) by a gap (422, 522), characterized in that: the cable further includes a plurality of elastomeric elements (423, 523), wherein at least one of the elastomeric elements (423, 523) is positioned in each gap (422, 522) to provide cable flexibility and where further an outer radial extent of each elastomeric element (423, 523) relative to the coaxial cable axis is less than an outer radial extent of adjacent magnetic elements (421, 521) relative to the coaxial cable axis. a probe Radio Frequency connector (310, 400, 631) structured to receive a RF differential signal; a testing connection assembly (330, 600); and a coaxial cable (320, 500, 630) structured to conduct the RF differential signal between the probe RF connector (310, 400, 631) and the testing connection assembly (330, 600), the coaxial cable (320, 500, 630) including: a cable for conducting the differential signal, and a plurality of magnetic elements (421, 521) structured as rings surrounding the coaxial cable, positioned along a length of the cable and structured to isolate the differential signal from common mode interference, wherein each magnetic element (421, 521) is separated from adjacent magnetic elements (421, 521) by a gap (422, 522), characterized in that: the cable further includes a plurality of elastomeric elements (423, 523), wherein at least one of the elastomeric elements (423, 523) is positioned in each gap (422, 522) to provide cable flexibility and where further an outer radial extent of each elastomeric element (423, 523) relative to the coaxial cable axis is less than an outer radial extent of adjacent magnetic elements (421, 521) relative to the coaxial cable axis. a cable for conducting the differential signal, and a plurality of magnetic elements (421, 521) structured as rings surrounding the coaxial cable, positioned along a length of the cable and structured to isolate the differential signal from common mode interference, wherein each magnetic element (421, 521) is separated from adjacent magnetic elements (421, 521) by a gap (422, 522), characterized in that: the cable further includes a plurality of elastomeric elements (423, 523), wherein at least one of the elastomeric elements (423, 523) is positioned in each gap (422, 522) to provide cable flexibility and where further an outer radial extent of each elastomeric element (423, 523) relative to the coaxial cable axis is less than an outer radial extent of adjacent magnetic elements (421, 521) relative to the coaxial cable axis. the cable further includes a plurality of elastomeric elements (423, 523), wherein at least one of the elastomeric elements (423, 523) is positioned in each gap (422, 522) to provide cable flexibility and where further an outer radial extent of each elastomeric element (423, 523) relative to the coaxial cable axis is less than an outer radial extent of adjacent magnetic elements (421, 521) relative to the coaxial cable axis.