8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 126 of 153
Using the Tweaker Monitoring Screen
The Tweaker’s Monitoring Screen is provided in order to assist the field technician with
DVRS setup and troubleshooting.
The Monitoring screen provides real time indication of the RRSI level, SINAD, RF Power,
PL detection etc as described below.
IMPORTANT!
It must be noted that the Monitoring screen application is not intended to replace
the use of properly calibrated test equipment in the field.
Field
Description
Transmitter Mode
Can be set to either “Tx Disable” or “Tx Enable”.
Tx On
Does not require user input. Used to indicated Tx On (checked) or
Tx Off (unchecked)
PTT
Offers three settings:
PTT ON
– DVR keys up on selected channel and using
programmed setting (channel type, PL/DPL, NAC etc)
PTT OFF
– DVR Transmitted is idle
CARRIER
– DVR Transmitter is keyed up with carrier only (no
modulation). Limited to 10 minutes max key up time.
To use PTT ON or CARRIER, the “Test Mode” field must be
set to YES and “Transmitter Mode” must be set to Tx Enable.
Repeater CAS
RSSI
Sql
Indicates the Carrier Activated Squelch (CAS) status (Idle or
Active) of the DVR with respect to the programmed RSSI and
Squelch thresholds on the selected DVR channel.
RSSI
Displays the RSSI of the DVR.
PL
Displays presence of the programmed PL/DPL decoded by the
DVR.
SINAD
Displays the calculated SINAD of the DVR received signal.
RF Power
Displays the DVR Tx Power when the DVR transmitter is keyed
up.
Oper. State
Indicates the current DVR state
– Primary, Non-Primary or
Permanent Primary or OFF.
Ant. Sw.
Indicates the Antenna switch position; Normal or BL Reversed.
Mobile RUS
Provides information on when the Mobile radio is receiving a valid
signal (Active or Idle).
Mobile PTT
Activated when the MSU MIC is PTT-ed.
Temp
Displays the current controller temperature.
PA_t
Displays the current PA temperature.
Test Mode
Must be set to YES in order to use the PTT or P25 Rx Modem
Test options.
P25 Rx Modem Test (for test procedure see “BER Test Setup”)
Test Mode
Set to YES in order to measure BER
BER
BERm
Displays instant (BER) and averaged (BERm) Bit Error Rate
