Coaxial Radio Signal Strength Troubleshooting

I'm experiencing weak signal strength with my coaxial radio system. The issue is present both indoors and outdoors. I've already tried reorienting the antenna to no avail.

Ideal Skills and Experience:
- In-depth knowledge of coaxial radio systems
- Experience in troubleshooting signal-related issues
- Familiarity with antenna orientation and installation
- Knowledge of signal boosting solutions
- Experience with cable replacement and testing