You'll only have a problem if you're running a lot of power and the
shielding is poor quality, or if there's current on the outside of the
coax. Current on the outside can be reduced with a "current" or "choke"
balun.

Roy Lewallen, W7EL

Michalkun wrote:
I was wondering if passing a coaxial cable used for antenna very close to
electronics like TV, stereo, etc. will cause some intereferance that could
penetrate inside? I need to run the cable to balcony for my antenna and
electronics are in my way.