AM Jammer Transmitter

I need an AM transmitter designed to block specific signals.

Requirements:
- Jam a pulse amplitude modulated signal of 8 to 11.5 Hz with a carrier frequency of 60 Hz.
- Effective range of 10 feet.
- Usable both indoors and outdoors.
- Easy to assemble.

Ideal Skills & Experience:
- Electrical engineering expertise.
- Experience with RF design and jamming devices.
- Familiarity with pulse modulation and signal processing.