Sr. Marullo,
Keep scope inputs away from TX or exciter outputs, there are various techniques to monitor the modulatiion, power etc. using directional couples and splitters.
A power rated load may have a tap off, but a resistive attenuator could be built, say 100:1
Take care of the max and peak power rating of the scope at 50 Ohm.
The broadcast engineers among us can advise better,
Ciao,
Jon
Jean-Paul