Old Melbourne Repeater Association (K4RPT)
Melbourne, Florida


SYSTEM COURTESY AND TAIL TONES 

You will notice all sorts of beeps when using the repeaters. Unlike some repeaters, the various tones serve an actual purpose to let you know which band input or interface a signal was received on.  When first coming onto either repeater, it’s a good idea to listen for a minute or two even before announcing your presence. 

 
When Listening from 442.400

Input Source                Tone Frequency          Duration

440 input                       1000Hz                        100ms

220 input                       440 & 500Hz                125/125ms

EchoIRLP                      2000Hz                        50/50ms


When Listening from 224.120

Input Source               Tone Frequency          Duration

220 input                       500Hz                          100ms

440 input                       330 & 440Hz                125/125ms

EchoIRLP                      500Hz                          50/50ms

 


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