Most likely yes, as he lives in Manhattan, which is saturated with Cell, TV, and many other mobile communications signals.
@kan84
Check levels of these interfering signals by method given here:
Do I need A Filter?
.
.
Most likely yes, as he lives in Manhattan, which is saturated with Cell, TV, and many other mobile communications signals.
@kan84
Check levels of these interfering signals by method given here:
.
.