8A083X30 Rev.11
APX Series P25 Interface
DVRS User’s Guide
January 2019 Page 37 of 94
‘DVRS Enabled’ Mobile Radio TGs / Channels
DVR operation may be enabled (by the DVR and MSU programming) on selected mobile
radio Talk Groups / channels and disabled on others.
When the user selects a DVRS Enabled TG / channel on the MSU control head, the
DVR operation is enabled in the following manner:
• The DVR automatically enters the pre-programmed DVR mode/channel
associated (‘Strapped’) with the selected MSU TG / channel if DVR strapping is
programmed in the DVR.
OR
• The user may change the DVR mode / channel (if ‘strapping’ is not enabled) by
pressing the assigned DVRS button and entering the ‘DVR control mode’.
• The DVR can be activated and used to repeat messages between the system
users of the TG/channel selected on the MSU and the PSU users on the
selected DVR channel.
• If enabled in the DVR personality, ‘DVR Enabled’ tones will be heard every few
seconds (5-255 sec. programmable) in the MSU speaker, regardless of the
Primary / Secondary status.
‘DVRS Disabled’ Mobile Radio TGs / Channels
DVR operation may be enabled on selected mobile radio Talk Groups / channels and
disabled on others.
When the user selects a “DVRS Disabled” TG / channel on the control head:
• Pressing the DVRS button results in a DVR Invalid Option Tone (single low-
pitched tone).
• DVR operation is prohibited i.e. all DVR functions are disabled.
• Call Alert Page from the local PSU, sent on the last used DVR channel, can steer
the MSU to a ‘VR Enabled’ mode if programmed accordingly.
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