The tests were conducted in 30 buildings that
consisted of the five different NFPA construction types. Approximately 1,500 talk paths
were tested. The same test participants were used throughout the testing to provide
consistency in the grading process. Results of the tests showed an overwhelming
preference for analog (versus digital) modulation. Performance differences between the
frequency bands were negligible in the analog mode. Digital modulation and Trunked
Radios had a higher failure rate and the audio quality scored below the ratings in analog
mode.
http://phoenix.gov/FIRE/radioreport.pdf
consisted of the five different NFPA construction types. Approximately 1,500 talk paths
were tested. The same test participants were used throughout the testing to provide
consistency in the grading process. Results of the tests showed an overwhelming
preference for analog (versus digital) modulation. Performance differences between the
frequency bands were negligible in the analog mode. Digital modulation and Trunked
Radios had a higher failure rate and the audio quality scored below the ratings in analog
mode.
http://phoenix.gov/FIRE/radioreport.pdf
