Direct burial cable recommendation

I ran across the electrical code about keeping low voltage landscape lighting 14-2 in a separate conduit from ethernet cable. I'll put in two conduits ,side-by-side. Code seems to allow that.

Anyway, I received a cable tester today and tested the cable. The continuity test showed a different result each time I ran it. No idea, but I guess the tester isn't great. I also did a length test and it over estimated the length by 25'. What do y'all make of the results in the attached photos?
 

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