2-tone signaling

[sgtferra]

Does anyone know the 2-tone signaling for Haworth Fire Department in Bergen County NJ?

 

[Devilz311]

In the past I've had success with recording the tones and using a frequency analyzer to measure them. I haven't tried it in a long time, but I think I used Audacity. You can compare the measured tone to a Motorola QCII chart and it should work most of the time.

Of course if this is for official use, don't depend on this method for alerting.