Rover ST2 User Manual
ST2
Subject to change without notice
USER’S MANUAL
& NAVIGATION MENUS
Combined Analogue and Digital Analyzer for Radio,
TV and Satellite signals, 47–2250 MHz
Preliminary Version
USER’S MANUAL CODE: UG-ST2-1.10-1.0-EN-1.00
VERSION: Graphic 1.0
pag. 3
ST2 User’s Manual
INDEX
INTRODUCTION
USEFUL SUGGESTIONS ...........................................................................................................5
MAIN KEYS .................................................................................................................................8
METER POWER UP ...................................................................................................................9
CONFIGURATION MENU .........................................................................................................10
TV MODE (ANALOGUE AND DIGITAL)
1.0 TV MEMORY PLAN MENU .................................................................................................15
2.0 BUZZER (DIGITAL TV ONLY) .............................................................................................16
3.0 ANALOGUE TV SIGNAL MEASUREMENT: MEAS ............................................................17
4.0 TV DIGITAL SIGNAL MEASUREMENTS: MEAS ................................................................20
5.0 SPECTRUM MEASUREMENTS: SPECT ...........................................................................24
6.0 HELP: AUTOMATIC TUNING FUNCTION ..........................................................................27
7.0 MEMORY: MEMORISATION FUNCTION ...........................................................................28
8.0 STORE: FAST MEMORY KEY ............................................................................................30
9.0 AUTOSCAN: AUTOMATIC CHANNEL SEARCH ................................................................31
10.0 DATA LOGGER .................................................................................................................32
SAT MODE (ANALOGUE AND DIGITAL)
11.0 SAT MEMORY PLAN MENU .............................................................................................34
12.0 DISH ALIGNMENT: SAT FINDER .....................................................................................35
13.0 DUAL LNB: DUAL FEED DISH ALIGNMENT ...................................................................36
14.0 BUZZER SAT ....................................................................................................................37
15.0 SATELLITE SIGNAL MEASUREMENTS: MEAS ..............................................................38
16.0 SAT SPECTRUM MEASUREMENTS: SPECT .................................................................42
17.0 HELP: AUTOMATIC TUNING FUNCTION ........................................................................44
18.0 MEMORY: MEMORIZATION FUNCTION .........................................................................45
19.0 STORE: FAST MEMORY KEY .........................................................................................47
20.0 DATA LOGGER .................................................................................................................48
COMMON TV AND SAT FEATURES
21.0 DC ON/OFF: LINE FEED COMMAND ..............................................................................50
22.0 MPEG PROG SERVICE ....................................................................................................51
pag. 4
ST2 User’s Manual
APPENDIX
A1 - MAIN TECHNICAL SPECIFICATIONS ..............................................................................53
A2 - ACCESSORIES .................................................................................................................57
A3 - SMART PROGRAMME .....................................................................................................58
A4 - TROUBLE SHOOTING ......................................................................................................66
A5 - BATTERIES MAINTENANCE AND RECHARGE ..............................................................67
A6 - FRONT PANEL DESCRIPTION .........................................................................................68
A7 - SIDE PANEL DESCRIPTION ............................................................................................69
A8- SERVICE NOTES AND GUARANTEE REGULATIONS ....................................................70
A9 -
FAULT IDENTIFICATION FORM .....................................................................................................................................71
A10 - STANDARD ROVER EQUIPMENT REPAIR AND OR SERVICE FORM .................................................................................................... 72
NOTES .......................................................................................................................................................73
A-11 DISPOSAL OF ELECTRONIC EQUIPMENT RULES ...................................................................74
NOTES .......................................................................................................................................................75
pag. 5
ST2 User’s Manual
Introduction
USEFUL SUGGESTIONS
1) Thank you for choosing our measurement equipment, which is currently used
and appreciated by the most important Service Providers, Broadcasters and
by many installers because it is very user-friendly and provides complete and
accurate measurements. On our part we will do our very best to fulfi l your
requirements now and in the future.
2) This manual is a new concept quick User’s Guide, which is easy to read.
Select the function/measurement you need directly from the index and on the
respective page you will fi nd useful information to start the specifi c function
or a required measurement.
3) Every section that descibes a specifi c measurement is divided into three
parts:
a. Measurement/Function brief description : provides a high level
description of the specifi c Measurement or function.
b. Measurement start-up: is a list of steps to be followed in order to start
the specifi c measurement.
c. Push buttons and displays: graphic description of the push buttons
that need to be used and relevant displays that will result during
the measurement exercise.
4) The meter is very User-friendly. Just press the MEAS key to start the analogue
or digital measurements of any specifi ed satellite transponder or TV channel.
The ST2 analyzer has a vast memory, which is structured in Memory Plans
in which 199 programmes may be stored. These programmes may be in the
satellite or TV band and may be analogue or digital. You may also build your
own plan with a any TV channels list by means of the MEMORY function or
utilizing the SMART PC optional programme. The memory plan may be used
related to any specifi c canalized installation or customer.
5) IMPORTANT: the meter is delivered by the manufacturer with some default
settings for testing and demonstration purposes.
a. The meter turns off after 5 minutes inactivity in order to optimize the
battery duration and also for air transportation,
b. Make sure that you are using the meter with the proper TV standard,
relevant to the geographical area you fi nd yourself (Italy, Euro-ind,
France ecc.),
c. Some memory plans have been previously memorised in the meter
and may be recalled by name.
pag. 6
ST2 User’s Manual
Introduction
USEFUL SUGGESTIONS
Analyzer’s prememorized canalisations
nome standard descrizione canalizzazione
EUROPE PAL BG CCIR Europe
UK HK PAL I England
AUST.A PAL B Australia terrestrial transmissions
CHINA PAL D China
CEPOOI PAL D Est country
FOXTEL QAM - PAL B Australia CATV Foxtel
FRANCE SECAM France
NEW ZE PAL B new Zealand
RUSS.A SECAM B Russia terrestrial transmissions
RUSS.B PAL Russia terrestrial transmissions
USABRO NTSC Usa terrestrial transmissions
USACAB NTSC USA CATV Network (Cable)
USAHRC NTSC Usa HRC
USAIRC NTSC Usa IRC
AUST.D PAL B Australia digital
ITALY PAL BG Italy
INDIA PAL BG India
pag. 7
ST2 User’s Manual
Introduction
using the SELECT key that will highlight a fi eld which can be changed in a menu. This fi eld may be a value (i.e. frequency) or a state
to be modifi ed (i.e. START? or STORE?).
The UP and DOWN keys will modify the value of the highlighted fi eld or will change its status depending on what this
fi eld is representing.
7) The meter’s keys, as shown in the following section, have a double function
that may be enabled by pressing the key for more than two seconds. The
description of this double function written on the front panel label immediately above the main key.
USEFUL SUGGESTIONS
Analyser’s Pre-memorized ST-2 Trasponder lists
Satellite
Plan name
Satellite
Plan name
Satellite
Plan name
ASTRA 28 ASTR28 TELS 15 TELS15 Panamsat 72 PANS72
ASTRA 23 ASTR23 TELEC 8 TELEC8 LMI 75 LMI75
ASTRA 19 ASTR19 ATLNB 12 ATLB12 NILES 07 NILES57
Hotbird 13 HBIR13 Hispasat 30 HISP30 Intesat 18 INTE18
HotbirdName HBIRna Eutelsat 21 EUTE21 NSS 22 NSS22
Eutelsat 07 EUTE07 Arabsat 25 ARAB25 Intelsat 27 INTE27
Eutelsat 10 EUTE10 Arabsat 26 ARAB26 Panamsat 43 PANS43
AMOS 4 AMOS4 EBIR 28 EBIR28 Panamsat 45 PANS45
SIRIUS 4 SIRIU4 Ebir 33 EBIR33 Panamsat 58 PANS58
SIRIUS 5 SIRIU5 Expr 53 EXPR53 Asia 105 ASI105
INTEL 1 INTEL1 NSS 57 NSS57 INSAT4A INSA83
HELLAS 39 HELL39 Panamsat 68 PANS68 NSS 6 NSS95
Turksat 42 TURK42 Eutelsat 70 EUTE70 Asia Sat 2 ASI100
6) Navigation through all the possible selections may be archieved using keys
SELECT, UP and DOWN:
pag. 8
ST2 User’s Manual
Introduction
MAIN KEYS
Allows you to select the menu modifi able fi elds. The selected fi elds are
highlighted with a dark background.
Will modify the fi eld values highlighted with the SELECT key.
• provides the list of memory plans.
• If pressed for 2” the TV autoscan function automatically starts to allocate
a terrestrial channel plan.
• Enables the automatic satellite search function.
• If pressed for 2” it will enable the Dual Feed dish alignment feature.
• Spectrum analysis of the RF input signal.
• If pressed a second time it will enable the spectrum MaX Hold.
• If pressed for 2” it will enable the SAT POINT function that will optimize all
the spectrum settings for a dish alignment task.
• Provides analogue or digital transponder measurements.
• By pressing this key more than once, all the menus will appear in sequence
showing all the provided measurements.
• If pressed for 2” it will allow you to escape from any active funtion.
• Starts the automatic measurement procedure and memorizes the measu-
rements results of these for all the transponders contained in the active
memory plan.
• If pressed for 2” turns on/off the RF feed.
• Enables the memory function to create a custom memory plan. A memory
plan may contain up to 199 different programmes.
• If pressed for 2” you may memorize the tuned transponder directly to the
fi rst available programme in the memory plan.
• Key to start the automatic tuning of a digital transponder.
• If pressed for 2” this key will turn on the BUZZER function based on the
Noise Margin measurement.
• Reads all the services transmitted by a digital transponder. In this list all
the Video and audio PIDs wil be shown.
• If pressed for 2” the Confi guration Menu will be displayed to change all the
meter working settings.
pag. 9
ST2 User’s Manual
Introduction
METER POWER UP
To power up the meter press the [14] key.
On the meter’s display [2] a welcome screen will show for about 6”, this display
will provide all the detailed identifi cation data for the meter.
DISPLAY LAYOUT.
Always provide the Model name, Firmware Version and Serial Number every
time you need technical support or when the meter needs to be sent to an authorized Rover Service Centre.
Logo
Model Name
Firmware Versione
Serial Number
Boot Loader Versione
Hardware Versione
Start Up Bar
Brief description
Measurement start up
Push buttons and displays
pag. 10
ST2 User’s Manual
Introduction
CONFIGURATION MENU
The confi guration menu will allow you to set the main working parameters that
will be applied during the meter operation. This menu will also enable some
special functions like “FILE
MANAGER” (to cancel memory plans),
• Press the “MPEG PROG SERVICE” [1] key for 2 seconds
• On display [2] the Confi guration Menu will be shown
• Select “VOLUME” to change the meter volume setting,
• Select
“METER SET UP” to access the typical meter settings,
• Select “TV CONFIG & COUNTRY” to set the canalisation and TV standard to be
used during all measurements,
• Select “SAT CONFIG.” to chose a SAT standard,
• Select “FILE MANAGER” to delete memory plans,
• Select “DiSEqC MOTOR” to drive a motorized antenna.
fi g. 1.0
Press key
for 2” to display the confi guration menu
pag. 11
ST2 User’s Manual
Introduction
“VOLUME” (Volume level setting):
Press key to modify the meter volume intensity
• 0%
• 20%
• 40%
• 60%
• 80%
• 100%
continue: CONFIGURATION MENU
Auto Shut off time when no key is pressed: OFF,
5 min., 10 min.
Measurement unit: dBμV, dBmV, dBm
available languages
key pressed BEEP sound status: Low, Medium,
High and OFF.
and press the key to access the menu
“METER SET UP” :
Display backlight:Full ON (always on), 30 sec
(shuts off 30 sec after the last key was pressed).
Referring to fi g. 1.0, press key
to choose the “METER SETUP” menu entry
“TV CONFIGUR. COUNTRY” (TV canalisation and standard):
and press the
Referring to Fig. 1.0, press key
to select the “TV CONFIG. & COUNTRY” menu entry
List of all the available prememorized
standard canalisations (see. also
to the paragraph “Useful Suggestions”: “ Analyser Pre-memorised
canalisations”)
from 0 to 2500 MHz
key to access the menu
Level - Tilt - Aud/Lev
pag. 12
ST2 User’s Manual
Introduction
“SAT CONFIGUR.” :
and press the
key to access the “SAT CONFIGUR. MENU”:
Referring to fi g. 1.0, press the
key to choose “SAT CONFIGUR & SCR”
• DSS
• DVB
Sat SRC Menu
“FILE MANAGER” :
continue: CONFIGURATION MENU
LNB1 DiSEqC: a-b-c-d. See Par. 14.0
LNB2 DiSEqC: a-b-c-d. See Par. 14.0
and press key to access the menu
Referring to fi g. 1.0, press key
to choose the “FILE MANAGER” menu entry
File Type: • PLAN • LOGGER •AUTOSCAN
The list of fi les shown in this fi eld depends on the fi le
type selected before:
• if the fi le type is PLAN, the pre-memorised memory
plans as well as the custom made plans will be
displayed: ITALY, PLAN 3 ecc.
• if the fi le type is LOGGER, the Logger fi les will be
displayed as “LOG. 1”, “LOG. 5” etc.
• if the fi le type is AUTOSCAN, the list of all canalisations
obtained by means of an automatic TV band scan will
be displayed.
After selecting a File Type name, the Deletion has to be confi rmed by highlighting the “DELETE
FILE” command and by confi rming this selection with the UP or DOWN key.
The File Manager function allows only manual AutoTV memory plansfi le deletion from the main meter
memory. The Manual and AutoTV fi les are user’s defi ned memory plans. The AutoTV memory plans (rif.
par. 2.0) are automatic canalisation memory plants obtained by a Meter scan. The LOGGER fi les are
obtained by running the datalogger function (see Par. 13.0).
NOTE: It is not possible to delete the Factory Pre-memorised fi les which contain satellite transponder list and canalisations relevant to all world wide standards. These may be removed only using a
PC and the SMART interface application programme (see Appendix A3).
NOTE: it is not possible to delete a factory satellite transponder List canalisation (es. HBIR13), the
meter will reply with the message “FAILED !”. In order to remove this kind of fi le from the PLAN list
you must use the SMART PC interface programme (see APPENDIX A3).
Standard - 0MHz (IF)
pag. 13
ST2 User’s Manual
Introduction
and then press the
key to access the “SYSTEM MENU MOTOR” menu:
Referring to fi g. 1.0, press the
key to select “DiSEqC MOTOR”
“DiSEqC MOTOR” (menu to drive motorized antennas):
continue: CONFIGURATION MENU
The fi rst display line shows the satellite to which we want to aim the motorized dish (i.e. Hot Bird 13°
E). The wanted satellite may be selected using the PLAN [3] key (see par. 2.0).
The motor action is called “ACT”. Depending on the verb selected in this fi eld, using the UP and
DOWN keys, sub fi elds will be shown (see table below) that will allow the completion of the desired
action. Once the wanted action has been properly confi gured, move to the Next line of the display
using the SELECT key and change its status using the UP and DOWN keys (see ACT enabling
column in the table below).
ACT ACT sub fi elds Description ACT enabling
MOVE none allows the meter movement
towards the wanted direction
EAST or WEST
DIR:
• EAST
• WEST
GOTO from POS 1 to
POS 99
selects one of the 99 motor prememorized positions
APPLY?
(move to the selected position)
STORE from POS 1 to
POS 99
memorizes the current motor position in one of the 99 possible
memory locations.
STORE?
(stores the current
motor position)
RESET none removes any eventual rotational
preset EAST or WEST motor
movements limits.
APPLY?
(removes rotation
blockages)
Selected satellite
Motor Action (see table below)
Motor action enabling (see table below). The information on this line depends on the selection made
in the “ACT” fi eld.
received signal Power measurement
During the alignment phase, the displayed measurements is only the average digital power measurement .
Once the satellite has been recognized, the meter will show the Noise Margin measurement and the quality
analysis (PASS, MARGINAL, FAIL) as well as the Service handler data.
NOTE
Press any key to exit the “DiSEqC MOTOR” function.
pag. 14
ST2 User’s Manual
TV Mode
TV MODE (ANALOGUE AND DIGITAL)
1.0 TV MEMORY PLAN MENU .....................................................................15
2.0 BUZZER (DIGITAL TV ONLY) .................................................................16
3.0 ANALOGUE TV SIGNAL MEASUREMENT: MEAS ................................17
4.0 TV DIGITAL SIGNAL MEASUREMENTS: MEAS ....................................20
5.0 SPECTRUM MEASUREMENTS: SPECT ...............................................24
6.0 HELP: AUTOMATIC TUNING FUNCTION ..............................................27
7.0 MEMORY: MEMORISATION FUNCTION ...............................................28
8.0 STORE: FAST MEMORY KEY ................................................................30
9.0 AUTOSCAN: AUTOMATIC CHANNEL SEARCH ....................................31
10.0 DATA LOGGER .....................................................................................32
Brief description
Measurement start up
Push buttons and displays
pag. 15
ST2 User’s Manual
TV Mode
1.0 TV MEMORY PLAN MENU
The memory plan function provides the list of pre-memorised canalisations that
can be chosen for antenna alignment and TC channel measurements. When
the meter is turned on, the last selected Memory Plan is activated.
• Press the PLAN [3] key to select a Memory plan (channel list),
• Select the required Memory Plan using the UP [7] and DOWN [9] keys,
• The highlighted list will have a dark background,
• Press any key to quit the menu, for example the MEAS [6] key, to start the
measurements on the selected canalisation.
Press the
key and select the required plan using the or keys.
Press the key to start measuring.
The list that arrives will always be the one highlighted with a black background.
NOTES
There are 4 types of Memory plans:
SATELLITE: Satellite Factory Prememorized
plans (see SAT section of this manual)
TELEVISION: Standard TV canalizations
MANUAL MEMORY: custom made Memory
Plans.
AUTOSCAN: memory plans automatically generated by the Automemory (autoscan) feature
in the TV band (Rif. Par. 10.0).
Brief description
Measurement start up
Push buttons and displays
pag. 16
ST2 User’s Manual
TV Mode
2.0 BUZZER (DIGITAL TV ONLY)
The buzzer is a beep sound which varies its tone according to the Noise Margin
of the signal received. This helps antenna alignment. Press the HELP [12] key
for 2 seconds to enable this feature. The meter will display the noise margin
measurement, the quality analysis (PASS, MARGINAL, FAIL) and the network data
(NIT tables). These measurements are shown only if the COFDM MUX is locked.
• Select the required Multiplex,
• Press the HELP [12] keys for 2”,
• The meter will show the BUZZER FUNCTION. This provides an audible buzzer
tone, related to the noise margin measurement.
• The Buzzer sound turns on only when the MULTIPLEX is locked.
• Press any key to disable this function.
Press the
for 2” to start the BUZZER FUNCTION.
The current channel of the active Memory Plan is shown on the fi rst line of
the display. The channel frequency value can be changed. If this is done the
frequency association to the channel name is lost and three horizontal lines are
shown. When the selected Multiplex is locked the meter activates the buzzer
and the relevant measurements are shown (see fi g. below) .
Frequency
active measurements when the MUX is locked
NOTE
• The buzzer function works only for digital TV channels
Brief description
Measurement start up
pag. 17
ST2 User’s Manual
TV Mode
3.0 ANALOGUE TV SIGNAL MEASUREMENT: MEAS
The MEAS key starts the available measurements on the tuned channel. In this
section we describe all the measurements available for an analogue TV channel. If you
repeatedly press the MEAS key, the display shows, in sequence (see next paragraph),
all the measurements carried out on the selected channel as a numerical value and
with a graphic bar that varies its length proportionally according to the represented
measurement. This bar memorises the peak measurement value.
Tuning:
The upper part of the display shows the tuning parameters for the TV channel.
The displayed parameters are those of the active channel. To change them use
the SELECT [10] key to highlight the fi elds to be changed and use the UP [7]
and DOWN [9] keys to modify their values. The following parameters can be
modifi ed in the user generated plans: channel number, frequency, signal modulation (FM Radio, analogue or digital TV), audio carrier and its relevant modulation type (this only applies to analogue signals) and power feed on the RF input.
It is possible to obtain all the tuning parameters only in the fi rst measurement
level (see note below).
Measurements:
The bottom part of the display shows all the measurements available for the
tuned channel. See the “Useful Suggestions” section at the beginning of this
User’s Guide for more details.
Repeatedly press the “MEAS” [6] key and the following measurements will be
displayed for analogue signals:
• Measurement level 1: Analogue video carrier level (ref. par. 3.1),
• Measurement level 2: Measures the V/A ratio (the difference in dB between
the video and audio carrier level) and the C/N measurement (ref. par. 3.2).
• Measurement level 3: Measures the audio carrier level and it is possible to
evaluate the sound quality from the built-in speaker (ref. par. 3.3).
NOTES
• It is possible to vary all the tuning parameters, memory plan, channel number, frequency and
channel type (FM Radio, analogue or digital TV) only when in the fi rst level measurement display
(where the analogue video carrier measurement is shown). In all other measurement levels only the
memory plan number, the channel or the frequency values can be changed.
• To hear the TV signal audio carrier in Measurement level 3, make sure that the meter’s volume
is turned on.
• For the “Television” plan (standard canalization) only the chanel number and the RF power feed
may be changed (ON/OFF).
pag. 18
Push buttons and displays
ST2 User’s Manual
TV Mode
Press the
key and then use the
key to choose the fi eld to be
modifi ed. Use keys
and
to modify the displayed value
3.1 Analogue level measurement (Level 1)
Fig. 3.1 Analogue signal First Measurement Level
Memory plan (see section 1.0)
Channel (see section 1.0)
Analogue or digital modulation: COFDM (DVB-T/
H), FM Radio
AUDIO FREQUENCY CARRIER
DC at RF IN
Channel frequency
4.2 A/V and C/N analogue measurement (Level 2)
Fig. 3.2 Second Measurement level: V/A and C/N ratio.
NOTES
• lt is only possible to change all the tuning parameters in the fi rst mesurement level, shown in fi g.
3.1 and only for the user generated plans.
• You can return to the fi rst measurement level at any time by pressing the ON/OFF [1] key.
Press the
again to display the second measurement level:
Memory plan (see section 1.0)
Channel (see section 1.0)
Channel Frequency
continuation: ANALOGUE TV SIGNAL MEASUREMENTS: MEAS
NOTE
There are three variable fi elds
in this measurement level:
Memory plan, channel
number and frequency.
pag. 19
ST2 User’s Manual
TV Mode
3.3 Analogue Audio level measurement (Level 3)
Fig. 3.3 Third measurement level for the analogue audio carrier.
NOTES
• When the third measurement level is active it is possible to evaluate the audio quality using the
built in loudspeaker.
• To listen to the TV channel audio make sure that the meter’s volume is not OFF (Ref. Par. 1.1)
Press the
key again to display the third measurement level:
Channel frequency
Memory plan (see section 2.0)
Channel (see section 2.0)
continuation: ANALOGUE TV SIGNAL MEASUREMENTS: MEAS
NOTES
• If there is no signal or if the signal level is below the meter’s measurement dynamic range, the
string PWR_TOO_LOW (power too low) will be shown,
• The meter always shows a graphic bar proportional to the signal level or power measurement,
• The graphic bar memorises the peak signal level or power value this is represented by a vertical
line on the display,
• To display all the signal measurements available, the MEAS key has to be pressed repeatedly
(see next paragraphs in this section for more details),
• If you press the “POWER ON” key [14] the meter automatically returns to the fi rst measurement
level shown in Fig. 3.1 regardless of the previous measurement level.
NOTE
There are three variable fi elds
in this measurement level:
memory plan, channel
number and frequency.
Brief description
Measurement start up
pag. 20
ST2 User’s Manual
TV Mode
The MEAS key starts the measurements available for the tuned channel. In this section we describe all the measurements available for a digital TV channel. If you repeatedly press the MEAS
key, the display shows, in sequence, (see next paragraph) all the measurements carried out on
the selected Channel as a numerical value and with a graphics bar that varies its length propor-
tionally to the represented measurement. This bar memorises the peak measurement value.
Tuning:
The upper part of the display shows the tuning parameters for the TV channel.
The displayed parameters are those of the active channel. To change them use
the SELECT [10] key to highlight the fi elds to be changed and use the UP [7]
and DOWN [9] keys to modify their value. The parameters that can be modifi ed
are: Channel Number, frequency, signal modulation (FM Radio, analogue or
digital TV), audio carrier and its relevant modulation type (this only applies to
analogue signals) and power feed on the RF input. It is only possible to obtain
all the tuning parameters in the fi rst measurement level (see note below).
Measurements:
The lower part of the display shows all the measurements available for the
tuned channel. See section “Useful Suggestions” at the beginning of this User’s
Guide for more details.
Repeatedly press the “MEAS” [6] key to see the following measurements for
analogue signals:
• Measurement level 1: measures the digital power (PWR) (ref. par. 4.1),
• Measurement level 2: measures the Noise Margin (N. MARG.), the signal
quality (QLTY), the MER and SNR with a relevant graphic bar (ref. par. 4.2),
• Measurement level 3: measures the bBER (Pre BER) and aBER (Post
BER) with relevant graphic bars (ref. par. 4.3),
• Measurement level 4: Eye Constellation diagram and all the basic tuning parameters are displayed (ref. par. 4.4).
• Measurement level 5: all data provided by the NIT card: FEC, Network name,
(NETW NAME), bouquet name (BOUQ. NAME), and DATE (ref. par. 4.5).
NOTE:
• It is possible to vary all the tuning parameters, memory plan, channel number, frequency and channel type (FM
Radio, analogue or digital TV) only when in the fi rst level measurement display. In all other measurement levels only
the memory plan number, the channel or the frequency values may be changed this, only for the user generated
plans. For the Standard TV channel plans (Television) only the channle may be changed, frequncy en RF power
feed can be changed.
• The status bar at the bottom of the display always shows the basic information regarding the measured signal. For
a digital MUX: the network name, the encryption system and a lock icon that indicates if the digital MUX is locked. If
the active channel is digital, a “D” will be displayed on top of the “DIG” writing on the display front panel label.
4.0 TV DIGITAL SIGNAL MEASUREMENTS: MEAS
pag. 21
Push buttons and displays
ST2 User’s Manual
TV Mode
continuation: DIGITAL TV SIGNAL MEASUREMENTS: MEAS
Fig. 4.1 Digital signals fi rst measurement level.
Press the
key and use the
key to choose the fi eld to be
modifi ed. Press keys and to modify the displayed value.
4.1 COFDM Digital multiplex Power Measurement COFDM (Level 1)
Memory plan (See section 1.0)
Channel frequency
Channel (See section 1.0)
Channel band width (i.e. PAL
BG: 7 MHz in VHF and 8
MHz in UHF band).
DC at RF IN
NOTE
• If there is no signal or if the signal level is below the meter’s measurement dynamic range, the
string PWR_TOO_LOW (power too low) is shown,
• The meter always shows a graphic bar proportional to the signal level or power measurement,
• The graphic bar memorises the peak signal level or power value. This is represented by a vertical
line on the display,
• To display all the signal’s available measurements, the MEAS key has to be pressed repeatedly
(see next paragraphs in this section for more details),
• If you press the “POWER ON” key [14] the meter automatically returns to the fi rst measurement
level shown in Fig. 4.1, regardless of the previous measurement level.
Analogue or digital
measurement: COFDM
(DVB-T/H), FM Radio
Fig. 4.1 Digital signals fi rst measurement level.
Pressing the key it is possible to select the channel and the power at the
RF input.
Only on the user generated memory plans it is possible to Select and Change
the fi elds mentioned in Paragraph 4.0.
pag. 22
ST2 User’s Manual
TV Mode
continuation: DIGITAL TV SIGNAL MEASUREMENTS: MEAS
Fig. 4.2 The second level measurement provides the Noise Margin the MER (modulation error rate)
with their relevant graphic bars. Also the SNR measurement is shown as well as the quality analysis
(PASS, MARGINAL FAIL).
Press the
4.2 N. MARG, QLTY, MER and SNR measurements (Level 2)
key again to start the second level measurement:
Memory plan (See section 1.0)
Channel (See section 1.0)
NOTE
There are three variable fi elds
in this measurement level:
the Memory Plan, the channel
number and frequency. Only
on user generated plans.
Fig. 4.3 the third measurement level provides the BER (Bit Error Rate) before and after the error
correction algorithms. The aBER (after Viterbi) shows the <10-8 value for signals that can be considered error free after the correction algorithms.
Press the
4.3 BER measurement before and after error correction (Level 3)
key again to start the third level measurement:
Memory plan (See section 1.0)
Channel frequency
Channel (See section 1.0)
NOTE
There are three variable fi elds
in this measurement level:
the memory plan, the channel
number, and frequency. Only
on user generated plans.
Channel frequency
pag. 23
ST2 User’s Manual
TV Mode
Fig. 4.5 This display shows the Network name, the bouquet and date.
4.4 Eye constellation display (Level 4)
Memory plan (See section 1.0)
Channel frequency
Channel (See section 1.0)
NOTE
There are three variable fi elds
in this measurement level:
the Memory Plan, the channel
number and frequency. Only
on the user genereated plans.
NOTE
• When there is no signal, or when the power measurement is below the meter’s measurement dynamic range,
or when the digital signal is not locked, three horizontal lines are shown instead of the measurement values (See
Fig. from 4.2 to 4.5), (in Fig. 4.1 in the PWR measurement fi eld the word “PWR Too Low is displayed),
• Only the memory plan, the channel number and signal frequency can be changed for all measurement levels
from 2 to 5 this, only on the user generated palns otherwise only the channel. may be changed .
• When the frequency value is modifi ed three horizontal lines are displayed instead of the channel or programme
number. This is because the correspondence between the frequency value and the associated channel number
or name is lost,
• If you press the “POWER ON” key [14] the meter automatically returns to the fi rst measurement level shown in
Fig. 4.1, regardless of the previous measurement level.
• On the display’s base line, starting from the second Measurement Level (see fi g. 4.2), the NIT values are
shown: network name, encryption system, and the letter “D” to highlight that the signal under test is DIGITAL.
Finally a lock icon is shown to indicate if the digital multiplex is locked.
continuation: DIGITAL TV SIGNAL MEASUREMENTS: MEAS
Memory plan (See section 1.0)
Channel (See section 1.0)
4.5 Net-ID data (Level 4)
The ZOOM allows constellation
enlargement in order to view
one quadrant at a time
Press again the
key again to start the third level measurement:
Press again the
key again to start the fourth level measurement:
Fig. 4.4 the 4th level provides the constellation display.
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