If you experience any issues with signal loss using the VP-633 and VP-634 to extend your coax runs, please make sure you are using cabling cable of retaining the signal properly
Below is a list of tested cables. If you have any results to add to this list, please contact us:
| Brand & Model | Test | Test Length | Specs | Suggested Application |
| Belden 1189A | Fail | ~800 ft. | Data Sheet | Broadband CATV |
| Belden 1694A | Pass | ~800 ft. | Data Sheet | Low Loss Serial Digital |
| Datavideo CB Series | Pass | ~1600 ft | Product Guide |
