8A083X30 Rev.11
APX Series P25 Interface
DVRS User’s Guide
January 2019 Page 34 of 94
DVRS Status Tones
DVRS Status Tones - MSU Speaker
The following DVRS specific tones will be heard in the MSU speaker under the
circumstances described below:
Indicates a valid DVRS Button
press during DVRS Selection
Mode.
Indicates Invalid DVR selection
(for example when pressing the
PM button when PM option is
disabled).
Indicates the end of DVR Control
Mode session. The last DVR
settings (DVR channel, DVR
mode, Permanent Primary status)
selected by the user and displayed
on the MSU control head become
active.
Indicates Permanent Primary
ON/OFF.
Two short low-pitched
tones
Indicates that the DVR and Mobile
radio transmitters have been
keyed up more than 50% of the
time over the past 30 minutes and
any nearby bystanders may be
getting excessive RF radiation.
The users must immediately limit
their talk time to comply with FCC
rules.
Single high-pitched tone
every few seconds (5-255
sec. programmable)
Indicates the DVR is either in
SYSTEM or LOCAL mode
(programmable). The ‘DVR Active’
tones are heard in both Primary
and Secondary DVR modes.
Table 7 DVRS Status Tones (MSU Speaker)