shielded twisted pair cable (FTP, STP, S/STP, or S/FTP) VS. double shielded coaxial

[cutty]

hey guys,
i´ve a questiton about the using of the "h-field and e-field" connection cabel.
in the manual ther is the sentence: "The H-field pre-amplifier is connected with a shielded twisted pair cable (FTP, STP, S/STP, or S/FTP) to the main board. This cable should not be placed next to the network cable."
BUT
can i place the RJ45-Cabel next to the Coaxial-cabel??

AND
in the manual there is the sentence: "The E-field pre-amplifier is connected with 75 Ω double shielded coaxial cable to the main board."
but i only find 4- or 5-Times shielded. Can i use this one too??

thank you for helping

BUT:  "YES"
AND:  "YES"