Uploaded March 2026 | Updated September 2026, 3 weeks ago

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This video shows how to test voice quality in two-way radios using the Rohde & Schwarz CMA180 radio test set to perform measurements using the ITU-T P.863 POLQA algorithm.

The R&S CMA180 Radio Test Set: rohde-schwarz.com/us/products/test-and-measurement/wireless-tester-rf-analyzer-generator/rs-cma180-radio-test-set_63493-56068.html

Getting Started with the CMA180 Playlist: youtube.com/playlist?list=PLKxVoO5jUTltXP-GewIlLtPM1Sdhai_C6

Test and Measurement Fundamentals Playlist: youtube.com/playlist?list=PLKxVoO5jUTlvsVtDcqrVn0ybqBVlLj2z8

Timeline:
00:00 Introduction
00:15 Suggested viewing
00:47 About POLQA measurements with the CMA180
01:50 POLQA testing scenarios
02:49 S5200 configuration
03:03 Connecting to the S5200 management interface
03:22 Configuration VoIP address
04:12 Radio configuration
04:50 VoIP configuration
05:20 Write to radio
05:45 CMA180 configuration – TX POLQA test
06:00 CMA180 connection setup
06:44 POLQA TX test scenario
07:24 TX test interconnection diagram
08:06 Selecting the TX measurement scenario
08:32 TX Test default screen
08:56 VoIP generator configuration
09:58 Enabling VoIP generator output
10:35 POLQA TX test analysis configuration
11:05 Starting TX POLQA measurements
11:39 Viewing TX POLQA measurement results
12:17 Additional POLQA measurement settings
13:24 CMA180 configuration – RX POLQA test
13:32 POLQA RX test scenario
14:08 RX test interconnection diagram
14:39 Selecting the RX measurement scenario
14:49 RX Test default screen
15:07 Generator configuration
15:57 POLQA TX test analysis configuration
16:45 Starting RX POLQA measurements
17:12 Viewing RX POLQA measurements results
17:29 Summary