I have a question about utilizing multiple PL tones on a single frequency. The borough that I am employed for as an Emergency Management Coordinator and Fire Marshal has tasked me with solving some communications issues. Being that the borough is 1.2 square miles, and is relatively flat, we have a single VHF frequency licensed to us that we utilize as a simplex frequency due to the small size of the municipality. This frequency is currently only utilized by the public works department however we are currently in the process of adding more users to provide more efficient interoperability. The current idea is to utilize the single frequency that we have licensed to us with multiple PL tones to separate the fire department, police department, public works, and the office of emergency management. The issue that I am concerned about is that in the event that all agencies are utilizing there respective channels, would we experience any issues such as receiver overloading? This may be a simple question however without having a background in electrical engineering I am unable to intelligently answer the question with 100% certainty.
Thank you in advance for any assistance provided!
Thank you in advance for any assistance provided!