User's Manual
Table Of Contents
- 1: Introduction
- 1.1 Documentation notes
- 1.2 Product introduction
- 1.3 General product handling and operation
- 1.3.1 Powering on/off and sleep mode
- 1.3.2 Attaching, detaching, and handling modules
- 1.3.3 Attaching the Wi-Fi antenna
- 1.3.4 Attaching the strap
- 1.3.5 About the touchscreen display
- 1.3.6 Selecting the active interface
- 1.3.7 Starting a function or test
- 1.3.8 Stopping a test
- 1.3.9 Saving results
- 1.3.10 Interpreting results
- 1.4 Maintenance
- 1.5 Technical support
- 2: Wi-Fi Testing Menu
- 3: 10/100 Testing Menu
- 4: System Menu
- 5: IP and Video Testing
- 5.1 IP Network Setup
- 5.2 Connection Information
- 5.3 Ping
- 5.4 Traceroute
- 5.5 Web Browser
- 5.6 IP Video testing
- 6: Specifications
Base Unit User Guide Issue 1 Tech-X Flex™
5-18 5: IP and Video Testing
Intro
Wi-Fi
10/100
System
IP/Video
Specs
Table 5-12 Video QoS - Stream results, Video Scores tab
Result Description
VSTQ Video service transmission quality. This is a codec-independent measure related
to the ability of the bearer channel to support reliable video.
Valid values are:
0 - 100
VSPQ Video Service Picture Quality. This is a codec-dependent measure of the
subjective quality of the decoded video stream. It is equivalent to a V-MOS score,
using a different scoring range.
0 - 100
Gap VSPQ Video Service Picture Quality during gap state periods. This is a codec-dependent
measure of the subjective quality of the decoded video stream. It is equivalent to a
V-MOS score, using a different scoring range.
Burst VSPQ Video Service Picture Quality during burst state periods. This is a codec-
dependent measure of the subjective quality of the decoded video stream. It is
equivalent to a V-MOS score, using a different scoring range.
VSMQ Video Service Multimedia Quality. This is a codec-dependent measure of the
subjective quality of the decoded audio and video stream. It is equivalent to an
AV-MOS score, using a different scoring range.
Valid values are:
0 - 100
ESNR Estimated average peak signal-to-noise ratio value for pictures in the stream, in
dB. This value is derived based on other metrics and is not measured directly.
Table 5-13 Video QoS - Transport results, Stream Metrics tab
Result Description
Pkt Discard Rate Number of packets discarded. Packets may be discarded by the jitter buffer
emulator for the following reasons, similar to an actual jitter buffer:
• The buffer is too full to handle all incoming packets
• A packet arrives too late to contribute to the media presentation