Multiple antenna lines

[jnojr]

Scenario: two (or more) antennas up on the roof, with the coax for thm running down two stories through the same conduit. Problem / no problem? Assume LMR 400.

 

[mmckenna]

No problems.

 

[merlin]

No problem, I have 4, 65 foot runs of LMR 400 and a ladder line.
Coax is bundled and runs paralell to the ladder about 3 inches space.