I read it in the paper, but can't find it now, Which kind of cat cable?

W9OL

What is the correct cat cable designation, cat5E or Cat6. I've got a 14' run and occasionally have rf in the shack. I bought both, which do I return?

George KF2T

Either will work just fine, as long as they're not shielded cables. Yes, it's counterintuitive, but shielding can introduce ground loops. If there is an RF concern, wrap either/both ends into a toroid core (as many turns as you can manage safely). Enjoy!

Tim - W4TME

It doesn't make any difference if you use CAT5, CAT5E or CAT6 as long as all 4 pairs are wired in the cable as per the EIA/TIA specification if you plan on operating the radio's Ethernet interface as 1000Base-T. The IEEE 1000Base-T specification supports the use of Cat 5, or enhanced Cat 5 cable, for successful gigabit transmission. Cat 5 cable is typically unshielded twisted pair, containing four twisted wire pairs. Fast Ethernet (100Base-T) and 10Base-T use only two of these pairs, leaving two pairs unused. Gigabit Ethernet (1000Base-T) uses all four pairs.