Futurecom P25 Installation & Programming Manual page 67

Field Name Options
/ Units
R-Tx Pwr 30-39
dBm
CCT 0-60 min
ON/OFF Trigger RSSI
Squelch
Sq&RSSI
RSSI Thresh -50 to
-127dBm
Busy Lc Th -65 to
-105 dBm
Rx NID (h) Hex #
Tx NID (h) Hex #
Tx RSSI Th -60 to
-110dBm
January 2019
DVRS Installation & Programming Guide – PART II
Description
Specifies the selected Tx Output
Power at the DVR Antenna Port
when the DVR transmits on its Rx
frequency to other DVRs.
Refer to the Primary /Secondary
Operation Paragraph for more
details.
Continuous Carrier Timer –
specifies the maximum time a DVR
can be transmitting before its Tx
function is disabled. If the CCT is
set to 0 (OFF), the DVR operates in
continuous duty mode.
Analog Mode – any ON/OFF trigger
can be selected.
Digital Mode – RSSI only allowed.
Mixed Mode – RSSI only allowed.
Default Setting is -115dBm.
Threshold used during the dynamic
Busy Lockout Phase if Primary /
Secondary Enable BL for Voice
Comm is enabled (see Digital
Mode Settings menu).
Must match the P25 PSU Tx NID.
Serves as CAS validation in Digital
Mode (equivalent to Rx PL/DPL in
Analog Mode).
F7E Enables the DVR to receive
on any NID.
Must match the P25 PSU Rx NID.
Serves as CAS validation in Digital
Mode (equivalent to Tx PL/DPL in
Analog Mode).
When a Secondary DVR detects a
request for DVR repeat and it does
not detect any Heart Beats coming
from the current Primary DVR, the
Secondary DVR checks for activity
on its Tx frequency (exceeding the
Tx RSSI Th) to determine if the lack
of Heart Beat is due to the Primary
DVR already repeating the Call. If
no activity is found to exceed the
RSSI Th the DVR will check again
and if 3 heart beats are missed, the
DVR will negotiate becoming a
Primary.
8M083X25 R14
APX Series P25 Interface
Notes
The Duplexer Rx Insertion Losses
as entered in the Interface to
Mobile Setup screen are
compensated by the DVR PA
Output to produce the
programmed Tx Power at the
Antenna Port.
Does not affect Telephone
Interconnect Calls. Phone calls
have a separate CTT programmed
in the Digital System Setup.
Squelch is invalid setting in Digital,
F. Analog or Mixed Mode DVR
Channels.
The Duplexer Rx Insertion Losses
as entered in the Interface to
Mobile Setup screen are taken
into account to calculate the RSSI
at the Antenna Port.
Refer to the Primary /Secondary
Operation Paragraph for more
details.
Applies to Digital, Mixed and
F.Analog Mode.
Applies to Digital, Mixed and
F.Analog Mode.
Refer to the Primary /Secondary
Operation Paragraph for more
details.
Tx
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