Radiodetection RF Marker Ball – Cable TV (Black / Orange) The Radiodetection RF Marker Ball – Cable TV is a passive marker used to permanently identify buried cable television infrastructure. RF marker balls are passive, frequency-tuned markers that resonate when energized by a locator signal, enabling accurate underground utility identification without power or maintenance. Designed for long-term burial, it enables dependable locating using Radiodetection marker ball locators including the MRX SG, MRX G, and MRX. The black and orange color coding clearly differentiates cable TV services from other telecom utilities. Utility Type: Cable TV Color: Black / Orange Part Number: 61/OMCABLE-MK2 Packaging: Box of 30