Emergency Land Mobile Radio (ELMR) Radio Frequency Analysis (RFA)
Testing Bit Error Rate (BER)
The ELMR radio system mainly supports first responders.
We are making a coverage map, to determine where there is good reception and where there isn't.
The radio connection can vary
So we test it!
How do we collect all the data?
The vehicle is outfitted with:
a standard mobile radio
GPS logging system
As the vehicle drives, it transmits a simulated voice transmission every 3-4 seconds
Each transmission has its GPS location logged
The tower receives those transmissions, and measures the bit-error-rate for each one.
These points then are merged... with the vehicle data!
That data is plotted on a map, and a picture is formed!