User's Manual Part 2

Nomad User’s Manual Chapter 9 – Voice Quality Configuration Options
Copyright © Spirent Communications, Inc. 2013 118
Figure 9-3 - Mobile-to-Mobile Hardware Configuration
 On the Nomad Test Setup screen, configure Channel 1 as a Mobile task with the following
settings:
o Session → Uplink Device: Base task on channel 2
o Channel Settings → Audio interface for this channel: Analog Interface(ME),
Narrowband (ME HD) or High Definition (ME HD)
 On the Nomad Test Setup screen, configure Channel 2 as a Base task with the following
settings:
o Session → Downlink Device: Mobile task on channel 1
o Channel Settings → Audio interface for this channel: Analog Interface(ME),
Narrowband (ME HD) or High Definition (ME HD)
 Confirm that Channel 1 and Channel 2 use the same Scoring Model. Both channels must be
set for either PESQ or POLQA in the Session dialog.
 Place a call from Handset 1 to Handset 2. The incoming call must be manually answered.
 Start a new test.
 The test sequence starts with Handset 1 sourcing data to Handset 2. Data collected at
Handset 2 will be replayed in the Channel 2 area of the Nomad interface.
 In the next cycle, Handset 2 will source data to Handset 1. Data collected at Handset 1
will be replayed in the Channel 1 area of the Nomad interface. This pattern continues
throughout the duration of the test.
 During testing, adjust volume using the Settings → Levels dialog such that the Ins Gain
(PESQ) or Attenuation (POLQA) reading for each channel falls as close to 0 as possible. The
Input and Output sliders should sit within the Normal Operating Range values displayed.
 End the test when desired.