Performing Coarse Level PL/DPL Adjustment (Conventional Systems)

Prerequisites:

Prerequisites include:

The MLC 8000 Analog Comparator is already codec calibrated to produce -10 dBm +/-1.5 dB, and PL/DPL is enabled.
The MLC 8000 Configuration Tool with Analog Display and Control is operational.

When and where to use:

This procedure is performed against the reference site, which is the collocated remote site (or the remote site nearest or collocated to the prime site).

Procedure:

In the MLC 8000 Configuration Tool with Analog Display and Control, right-click a specific MLC 8000 Analog Comparator in the channel cluster tree, then select Configure Device. Click the IP Simulcast tab. This tab is only enabled in IP Simulcast configurations.
Set the PL/DPL field to PL or DPL to specify whether PL or DPL should be inserted into the voice stream.

Modify Device Configuration – IP Simulcast Tab

The PL/DPL Deviation and PL/DPL Code fields are open for editing.
In the PL/DPL Deviation box, type a number from 0.0 to 25.0 that produces 20% deviation.

NoteThe 20% system deviation is PL/DPL code specific. For example, if your system uses the PL code of 151, then the coarse level PL/DPL calibration is for the 151 PL code. If your system changes to 218, then re-execute the coarse level PL/DPL calibration, this time for the 218 PL code.
Select a value from the PL/DPL Code list to specify which PL tone or DPL code should be inserted into the voice stream.
Click Write to Device to save these changes to the MLC 8000 Analog Comparator.
The device resets and the configuration window closes. Wait for the reset to complete.
Reopen the IP Simulcast tab. Click Start.
Check that the deviation is 20%. Key up the channel and adjust as needed. Repeat 3 through 6.
Repeat these steps on one channel per site.