[Elecraft] Another W2 question - 13.6v DC on coax

[David Ferrington, M0XDF]

Hi again, if I were to feed 13.6v DC on my coax via a bias-tee would that affect a DC-V/U-200 sensor? 
The preamp at the top of the mast will take the DC off, but I’d prefer to put the sensor before the preamp if possible.

73 de David, M0XDF (K3 #174, P3 #108)