Precision RF/EMF Detection System

I'm seeking a high-accuracy solution for detecting and triangulating sources of RF and EMF for home and personal use. The equipment should be able to detect various types of transmitting equipment, including:

- RF emitters
- EMF sources
- Sound-producing devices

Ideal skills and experience:

- Expertise in RF/EMF detection technology
- Background in signal processing
- Experience with triangulation methods
- Ability to create user-friendly interfaces

Please provide a detailed approach and any previous work examples.