8M083X25 R14
APX Series P25 Interface
DVRS Installation & Programming Guide
–
PART II
January 2019
Page 73 of 153
Field Name
Range
Description
Notes
P25 Trunking
System
MSI
Non MSI 1
Non MSI 2
Non MSI 3
‘MSI’_ Default.
The DVR/VRX sends the ‘Status’
received from the P25 PSU to the
MSU without any change.
‘Non MSI 1’ The DVR/VRX adds 1
to ‘Status’ received from the P25
PSU and forwards the incremented
‘Status’ to the MSU.
‘Non MSI 2’ reserved for future use
‘Non MSI 3’ reserved for future use
Applicable only to P25
Trunking Channels.
Hardware Setup Menu
Field Name
Range
Description
Notes
RSSI
OFF
Hysteresis
Speed
2-20dB
1-10ms
Sets the RSSI CAS OFF threshold in
dB below the RSSI CAS ON Threshold
(see
Repeater Channel Setup
Menu).
Sets the RSSI Averaging Integration
Time.
Typically set to 5dB.
Typically set to 5ms.
Squelch
ON Threshold
OFF
Threshold
Speed
4-28dB
3-25dB
10-150ms
Sets the Squelch ON and OFF
thresholds.
Squelch Averaging Integration Time.
Affects Analog Mode only.
Typical recommended settings
are ON: 16dB SINAD
OFF: 10dB SINAD.
Typical setting is 25ms.
Reptr FM Dev.
Limit
12.5kHz
25kHz
0.75
–2.5kHz
1.5 - 5kHz
Typically set to 2.12kHz (12.5kHz
channel spacing) or 4.25kHz (25kHz
channel spacing.
Affects Analog Mode only.
Depends on the selected
Channel Spacing
– refer to the
Frequency Band Setup
menu.
PL FM
Deviation
12.5kHz
25kHz
0.19-
0.75kHz
0.38-1.5kHz
Typically set to 0.38kHz (12.5kHz
channel spacing) or 0.75kHz (25kHz
channel spacing.
Affects Analog Mode only.
Depends on the selected
Channel Spacing
– refer to the
Frequency Band Setup
menu.
PL STE Delay
120-250ms
PL Squelch Tail Elimination Delay. Must
be set to match the portable setting.
Typical setting is 150ms.
Affects Analog Mode only.
If this field is programmed too
short the squelch tail will not be
fully eliminated. If it is
programmed too long, the
portable may unmute
unnecessarily.
Automatic VR
Activation
(AVRA)
Enable /
Disable
check box
Enables or Disables the Automated VR
Activation (AVRA) Option.
