Publicité
Les langues disponibles
Les langues disponibles
USER'S MANUAL.
PROMAX-10
When pressing again the rotary selector
carries out a new measurement. If the selector rotary is pressed twice, you will access
the screen of Power and C/N ratio measurement again (section 4.2.3.1.4).
Figure 22.- Constellation Diagram representation and
Pre-BER, Post-BER and MER measurement in a digital channel.
4.2.3.1.6
CHANNEL Tuning CONFIGURATION
In CHANNEL-FREQUENCY mode, when the instrument works in channel
tuning, if you press the CONFIG key [14] you will access the first page of the
configuration menu of the parameters relating on this mode (Fig.23).
The parameters which may be changed and
their values range are shown in the following table.
The parameters are different depending on the
channel, whether it is digital or analogue.
To define a CHANNEL as DIGITAL or
ANALOGUE, you should go to the EDIT
CHANNEL option that is in the GLOBAL CONFIGURATION menu (see paragraph
4.2.1).
To access the second page of the GLOBAL
CONFIGURATION screen, press again the CONFIG
key [14] (Fig. 24).
To change a parameter value, turn the rotary
selector [9] until the field is activated (it will appear
shaded) and then press the rotary selector, the
value of the parameter will be activated and you will be able to change it by turning the
rotary selector. When the value you want appears, press the rotary selector [9] to
validate it.
Numeric fields such as FREQ. AUDIO, are edited digit by digit, starting from the
lowest weight digit.
CONFIGURATION parameters of ANALOGUE CHANNELS in CHANNEL
TUNING mode.
07/2011
SE
C21
CCIR
QAM
32/DVB
SR=
6.875
BER: 4.8E-8
BER : 4.7E-8
MER= .28 dB
ALL
Locked
PROMAX-10
, the
Figure 23.- DIG. CH CONFIG. 1/2.
CONFIG QAM:
2/2
C02
50.50MHz
ANNEX ITU-T
QAM MOD.
QAM 32
SYMBOL RATE
BW CANAL
6.875 MHz
7.0 Mhz
ATTEN.
QUADRANT
Figure 24.- DIG. CH CONFIG. 2/2.
SE
CCIR
DVB
AUTO
Q3
Page 27
Publicité
