UTP Baluns

My customer has intercom gate entry to their home with a small analog camera built into the pillar. The coax (underground in conduit) run is approximately 350-450' to a standard analog DVR in the home. He lost video feed and after testing, it appears the issue is with the coax. There is no handhole between the home to the gate pillar and unfortunately I cannot remove the pillar top....

* ****** ** **** ** *********** *********** ** *** **** camera **** ** *** ******* ***** ** *** *** ****** pairs **** *** ******** **** ******. *'** ******** ***** **** baluns ****** *** ***** ** ***** ****** ******, *'* ********* in **** ********** *********** ** * **** *** **** ****** with *** ******** (******* *** ******* ***** *** ** ******* quality).

*** ****** **** ****, **** **********, ** **** *** ***** suggestions? ***** ***,

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***** *** **** ** ********* **** ***** ***** *** ******** traffic **** *** **** *****, ** ***'** ******** ****. *******, it's **** ** ********* *** '** ******'.

*'** **** ****** ***** *** ****** **** ****** ****, *** *********** ************ ***** *** ******* **** *** **** *** on *** **** **** ******. **, ** ***'* *** **** choice *** ***** ******* (**: ***** **********, ******* **** ******* the *****) *** *** * ***** ******** ***'** ****** **** fine, ********** ***** ********* *** ***** ** *** **** **** and **** ** ************* **** *********.

*** *** **** ** ** ********** ***** * ***. ** others **** ****** *** *** **** ******** ********* ********* **** else ** ********* ** **** ***** *** ** ** ********** most ** *** **** ** ***** **** ****. **** **** multiple ***** ** * ****** ****, ****** ***** *** ***** over * ****** **** (** ***** ******) ***. * ***** you'll ***** **** ******* **** **** ********.


****,

** ***** ****, ****** **** ** ***** ***** ****** ** a ***** **** - *'** **** **** **** *****, ****, station-Z, **** *** ********* **/* ******* ****. *'** *** ***** and ***** *** *** ******* **** * ****** *****, ** well ** **** ******* ** * ****** *****.

*** ******* *** ***** ****** ***** ******** *** ********* * result ** * ****** **** ****** **** *** **** ** cable ** ************ **** ***** *******, *** *** ** ****** caused **** ***** ******** ***** ******* **** *** * ****** video/12V ******; **** * ****** ******, ** *******'* ** ** issue.

*** ********* ****: *** **** * ****** **** **** *** intercom (* ******* ****, *******). *'** **** ************* ***** * separate ******* **** *** **** ***** ******** (**. ****/***** **** for *** ********, ******/***** **** *** *** *****), *** ***** it *****, *** ***'* *** * ****** ******** **** *** you **** *** ***** ********* ******** ** * ******* ****. Also, **** **** *** ******* ******** ** **** ***.

*****, ****** ****. ********** *** *****.