Deviser DS2400Q User manual

Operation Manual
DS2400Q QAM Analyzer
Ver:1.1
© Tianjin Deviser Electronics Instrument Co., Ltd.
Deviser Part No.: 2400-DL
All rights reserved.
Printed in CHINA. Jun. 2011.


I
Warranty
The instrument is warranted for 12 months under
normal operating conditions (except batteries and
LCD). Users should read manual carefully before
first use and operate correctly according to the
manual.
Deviser shall have no responsibility for any defect
or damage caused by improper use and
maintenance or for any product which has been
repaired or altered by any one other not DEVISER
or our authorized service center.
When the meter need to be repaired or calibrated,
Please contact Deviser or our local distributors in
your territory.

II
INDEX
1. General Introduction.....................................1
1.1 Channel Measurement..............................3
1.2 Constellation Diagram...............................3
1.3 BER Statistics............................................4
1.4 Tilt/Level List .............................................4
1.5 Channel Scanning.....................................4
1.6 Spectrum Scanning...................................4
1.7 Hum Measurement....................................5
1.8 Limit Measurement....................................5
1.9 Auto Test ...................................................5
1.10 Voltage Measurement .............................7
1.11 Multiple User Channel .............................7
1.12 File Management.....................................7
1.13 Intelligent Power Management................7
2. Introduction ...................................................9
2.1 Appearance...............................................9
2.2 Keypad....................................................10

III
2.2.1 Soft keys ..........................................10
2.2.2 Shortcut keys ...................................10
2.2.3 Character/Digit Input........................10
2.3 Display Description..................................11
3. Using the Instrument...................................12
3.1 Function Menu Display............................12
3.2 Learn User Channel Plan........................13
3.3 Level Measurement.................................18
3.3.1 Analogue channel measurement......20
3.3.2 Digital channel measurement...........25
3.3.3 Limit Display.....................................29
3.4 Constellation Diagram.............................30
3.5 BER Statistics Measurement...................35
3.5.1 Parameter Description .....................36
3.5.2 Soft Keys Operations .......................37
3.6 Tilt/Level List Measurement.....................38
3.6.1 Tilt Mode ..........................................40
3.6.2 Level List Mode................................42
3.7 Channel Scanning...................................44

IV
3.7.1 Soft Keys Operation.........................45
3.8 Spectrum Scanning.................................48
3.8.1 Soft Keys Operation.........................49
3.8.2 Parameter Setting............................50
3.9 HUM Measurement.................................54
3.9.1 Soft Keys Operation.........................55
3.10 Limit Measurement................................56
3.10.1 Test Results List.............................57
3.10.2 Limit Edit ........................................60
3.11 Auto Test................................................61
3.11.1 Create New Project ........................63
3.11.2 Auto Test Storage ...........................69
3.12 File Management...................................71
3.12.1 File Directory..................................71
3.12.2 Save File........................................72
3.12.3 Read File........................................75
3.12.4 Delete File......................................79
4. Setup ............................................................81
4.1 Brief Introduction.....................................81

V
4.2 INFORMATION .......................................83
4.3 GENERAL...............................................84
4.3.1 Shutdown Time ................................84
4.3.2 Language Selection .........................85
4.3.3 Date and Time..................................86
4.3.4 Files Status.......................................87
4.3.5 System upgrade...............................87
4.4 Measurement Parameter Setup ..............88
4.4.1 Level Unit.........................................88
4.4.2 Level Calibrate.................................88
4.4.3 Limit Setup.......................................89
4.4.4 Auto Diagnosis.................................95
4.4.5 Voltage and temperature..................95
4.5 Channel Plan...........................................99
4.5.1 Select User Plan ..............................99
4.5.2 Channel Number Type ...................100
4.5.3 Learn User Plan.............................100
4.5.4 Edit User Plan................................101
5. Power Supply.............................................104

DS2400Q QAM Analyzer Operation Manual
DEVISER 1DS2400Q
1. General Introduction
DS2400Q is new model with color screen and
high performance, which is developed for digital
cable TV analysis by Deviser. This model can
measure and display most indexes of Digital TV
(Channel Power, MER, BER, Constellation
Diagram); Analog TV(Single-frequency Level,
Carrier Level of Full Channels Spectrum, HUM).
Also DS2400Q can measure Trunk Voltage,
Battery Voltage and Frequency Spectrum
Scanning.
DS2400Q has RS-232 port for communicating
with PC and also the PC software –TOOLBOX
which can make files management and analysis.

DS2400Q QAM Analyzer Operation Manual
DEVISER 2DS2400Q
Features:
* QAM, QPSK, COFDM Test
* Level Test
* Channel Scanning
* Spectrum
* Tilt
* HUM
* Voltage Measurement
* Multiple User Channel Plan Setup
* File Management
* Intelligent Power Management
* Character /Numeral Input
* Shortcut Setup
* Multi languages

DS2400Q QAM Analyzer Operation Manual
DEVISER 3DS2400Q
1.1 Channel Measurement
DS2400Q supports accurate signal level test in
analogue TV, QAM and single frequency modes.
For Analogue channels, you can get video level,
audio level and △V/A etc.
For Digital channels, DS2400Q supports
modulation modes of QAM, QPSK and COFDM,
Here, you can get Channel Power, MER and BER.
NOTE: MER, BER test is only in QAM Modulation
Mode. (16/32/64/128/256QAM)
1.2 Constellation Diagram
For Digital channels, Constellation diagram
function supports modulation modes of QAM,
Here, you can get Channel Power, MER, BER and
Constellation diagram.

DS2400Q QAM Analyzer Operation Manual
DEVISER 4DS2400Q
1.3 BER Statistics
For Digital channels, you can get MER, BER, ES,
SES, COR, UNCOR and etc…
1.4 Tilt/Level List
Tilt/Level list test is the effective solution to check
the flatness and amplitude, and DS2400Q support
12 channels tilt max.
1.5 Channel Scanning
DS2400Q supports video and audio level display
of all channels, which could up to 160 channels
most. Also its zoom in/out of 5 levels and marker
function make your observation easier.
1.6 Spectrum Scanning
DS2400Q has spectrum function, It provides
several spans, and two sample modes (AVG and
PEAK).In order to detect and know the
interference, it has peak-hold function which

DS2400Q QAM Analyzer Operation Manual
DEVISER 5DS2400Q
shows the difference between peak spectrum and
current spectrum by marker and double-marker
function.
1.7 Hum Measurement
HUM is also named as power supply hum
modulation distortion, which comes from the
low-frequency interference of power supply.
1.8 Limit Measurement
DS2400Q can fast check the cable system by the
limit test function. Each enabled channel will be
tested according to the limits set by user, and after
the testing, pass/fail indicator can be viewed.
1.9 Return Path
DS2400Q has Return-Path function, please refer
to 1.6.
1.10 Auto Test
DS2400Q provides a convenient way to automatic

DS2400Q QAM Analyzer Operation Manual
DEVISER 6DS2400Q
test the cable system. You can set up test items
including level, spectrum, limit test, HUM, tilt, etc.
And the test result will be saved automatically.

DS2400Q QAM Analyzer Operation Manual
DEVISER 7DS2400Q
1.11 Voltage Measurement
DS2400Q can measure battery voltage, trunk
voltage and identify AC or DC automatically of the
cable system.
1.12 Multiple User Channel
DS2400Q can create five user channel plans max,
which contains digital channels or analog
channels or mixed channels. Also they can be
switched easily. So it is very suitable for
multi-network maintenance.
1.13 File Management
DS2400Q can store the results of channel level
test, QAM test, tilt test, channel scanning,
spectrum scanning and HUM test for analogue TV
channel. User can manage and analyze these
files via meter or PC.
1.14 Intelligent Power Management

DS2400Q QAM Analyzer Operation Manual
DEVISER 8DS2400Q
DS2400Q with full charged is able to work over 5
hours. The power supply monitoring system will
monitor the status of power and ensure the
instrument in power saving mode.
NOTE: Charge the battery before first use.
Refer to 5.2

DS2400Q QAM Analyzer Operation Manual
DEVISER 9DS2400Q
2. Introduction
2.1 Appearance
Get acquainted with the appearance before use:
Serial
Port
RF Interface
LCD
Keyboard
Charge Status
POWER
Charge
Interface

DS2400Q QAM Analyzer Operation Manual
DEVISER 10 DS2400Q
2.2 Keypad
2.2.1 Soft keys
There are three soft keys ( , and )
located under the screen. They are used to
access the functions represented by the icons
displayed on the bottom of screen.
2.2.2 Shortcut keys
There are three keys bellow the three soft keys
including , , .
Press key can directly back to menu screen.
and key is used as different functions
in different screen.
2.2.3 Character/Digit Input
Press any character/digit key circularly to input.

DS2400Q QAM Analyzer Operation Manual
DEVISER 11 DS2400Q
2.3 Display Description

DS2400Q QAM Analyzer Operation Manual
DEVISER 12 DS2400Q
3. Using the Instrument
3.1 Function Menu Display
Figure3-1-1
The Figure3-1-1 Display the Main Menu which
includeall of the function icons,
Soft Keys:
: Enter the selected shortcut interface.
: Switch the selected shortcut on the left
direction circularly.
:Switch the selected shortcut on the
right direction circularly.
This manual suits for next models
1
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