Futurecom PDR8000 Programming Manual page 57

Document 8K088X04 R5.01
®
PDR8000 Portable Digital Repeater Programming Guide
shifted signal (for PL), or a specific tone (for DPL), the receiver can quickly detect the end of the
transmitted signal and mute the unwanted noise. When PL is used, Tx STE and Rx STE can be
set to Off, -135° phase shift, +135° phase shift, or -180° phase shift. When DPL is used, Tx
STE and Rx STE can be set to either Off or DPL (enabled).
Multi-Coded Squelch: Normal (Multi-PL/DPL not enabled)
If the active PDR8000 channel is configured to use an Analog Code Table for Normal PL/DPL
operation, then the first row of the PL/DPL table is enabled. That row defines the Tx and Rx
behavior associated with all traffic on the channel.
The PDR8000 only processes analog signals received over the air with PL or DPL that is equal
to the Rx PL/DPL code entry found in the first row of the table. In the first row, if the Rx Squelch
Code is set to OFF (Carrier Squelch), then all received signals on that channel that meet the
Signal Strength and/or Signal Quality criteria (See Section 2.7.1.2) defined for this channel are
processed by the PDR8000 (i.e., no PL/DPL filtering is done). Received signals not meeting the
strength/quality criteria are ignored. PDR8000's Rx STE should be set to match the Tx STE
sent by the subscriber units.
When the PDR8000 sends a transmission, it encodes Tx Squelch Code configured in the first
row of the Analog Code table. At the end of the transmission, PDR8000 can be configured to
send a configured STE (Squelch Tail Elimination) signal to help receiving radios quickly mute at
the end of the transmission. The configuration for Tx STE should be set to match the Rx STE
expected by the subscriber units.
Multi-Coded Squelch: Multi-PL/DPL
If the active PDR8000 channel is configured to use an Analog Code Table configured for Multi-
PL/DPL operation, then the PDR8000 utilizes the full table to define filtering and
translation. The PDR8000 only processes analog signals received over the air with PL or DPL
that is equal to any of the Rx PL/DPL code entries found in any enabled row of the table.
PDR8000's Rx STE in that row of the table should be set to match the Tx STE sent by the
subscriber units.
When the PDR8000 repeats an over-the-air analog transmission it encodes the Tx PL/DPL
found in the same table row as the received signal's Rx PL/DPL. At the end of the transmission,
PDR8000 can be configured to send a configured STE (Squelch Tail Elimination) signal to help
receiving radios quickly mute at the end of the transmission. The configuration for Tx STE
should be set to match the Rx STE expected by the subscriber units.
The Analog Code Table when clicked opens the PL/DPL Code Table for current Deployment.'
Table excerpt is shown below with the description of each field in the following table.
2022-08-25 Page 57 of 86