Had a odd experience recently toning RG-6 3 Gig cable. Put the toner red lead on the center and the black lead on the shield. Could not hear the tone, not even on cables I was sure I knew where they went. Don't know what I could of been doing wrong. I ended up using the old fashioned Ohm Meter method. The Ohm Meter method never fails. I once hooked up a 2 way radio tone controlled system in which I crossed a wire to another systems phone line and it still worked. At work, every time we punched down, say a 50 pair comm. cable I always made the guys ohm out each pair. I have seen tones lie.
We also experienced problems getting tones to pass thru Level 7 (Cat 6) bonded pair Belden cable.
(LCD - Sony KDL -52 XBR4) (Receiver - Yamaha RX-A1040)(Blu Ray - Oppo BDP-83) (PS3)( Comcast X1) Speakers (L & R - Paradigm Studio 20) (Center -Paradigm CC-470) (Surrounds & Back Surrounds - Paradigm SA-15R in walls) (Subwoofer 1 - Sunfire HRS-12) (Subwoofer 2 - Paradigm PW-2100)