E.F. Johnson Company 5100 ES, Operating Manual

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5-40 ES Series Models II/III Portable Radio Operating Manual
Conventional Mode Features
Any radio can program an Evac Alert button; however, only subscribers that are optioned
for Fire Ground Commander, and currently in Fire Commander Mode, can issue an Evac
Alert. A press and hold is required for activation. If an Evacuation Alert message is
received by the Fire Responder radio, the subscriber will flash “Evac Alert” on the display
and sound the Evacuation Alert tone.
Any button press will silence the Evac Alert tone but only a PTT press will cancel the
Evac Alert display message and exit the Evac Alert state. A Fire Responder subscriber
will only process one Evac Alert message every 60 seconds to avoid multiple Evac Alert
tones sounding. This feature makes use of the P25 Signaling Retry Attempts and Retry
Response Timer settings defined for the radio.
Evac Alert works in either simplex mode or through a repeater configured for data repeat
mode, both of which require a Responder and Commander radio. Currently the EFJohnson
infrastructure does not support the sending of Evac Alert messages so a Commander radio
is required.
The Audible RSSI can be programmed to provide the Fire First Responder an audible
indication when the RSSI drops below certain thresholds indicating a poor coverage area.
When enabled, the First Responder radio will measure RSSI at the beginning of a call and
may provide tone notifications after the call is over. The following provides the tones
heard in each RSSI range.
Table 5.1 RSSI Tones (Fire Ground Mode)
RSSI Level RSSI Indicator Bars Tone Heard
Above Good 3 or 4 bars No tone
Above Fair, Below Good 2 bars 2 beeps
Above OOR, Below Fair 1 bar 4 beeps
Below OOR “X” 4 beeps