23
Figure 4.4.10
This table represents the parameters for the measurement results to be verified with.
The table contains 13 parameters:
a)
Lev Vid Min.
The minimum value of video carrier level for analog channel. Default
value: 48 dBµV. Available values: 45 to 95 dBµV;
b)
Lev Vid Max.
The maximum value of video carrier level for analog channel. Default
value: 85 dBµV. Available values: 45 to 95 dBµV;
c)
Lev Dig Min.
The minimum value of digital channel level. Default value: 48 dBµV.
Available values: 45 to 95 dBµV;
d)
Lev Dig Max.
The maximum value of digital channel level. Default value: 85 dBµV.
Available values: 45 to 95 dBµV;
e)
Video/Audio min.
The minimum value of V/A ratio. Default value: off. Available
values: 5 to 20 dB;
f)
Video/Audio max.
The maximum value of V/A ratio. Default value: off. Available
values: 5 to 20 dB;
g)
Video/Noise min.
The minimum value of C/N ratio for analog channel. Default
value: off. Available values: 15 to 55 dB;
h)
dL adjacent max.
The maximum value of ratio between the adjacent channel
levels. Default value: 10 dB. Available values: 2 to 10 dB;
i)
Video/Dig max.
The maximum value of ratio between analog and digital channel
levels. Default value: 25 dB. Available values: 5 to 30 dB;
j)
MER(QPSK) min.
The minimum value of MER for DVB-T channels with QPSK
subcarriers modulation. Default value: 12 dB. Available values: 2 to 35 dB;
k)
MER(QAM16) min.
The minimum value of MER for DVB-T channels with QAM16
subcarriers modulation. Default value: 27 dB. Available values: 6 to 35 dB;
l)
MER(QAM64) min.
The minimum value of MER for DVB-T channels with QAM64
subcarriers modulation. Default value: 30 dB. Available values: 10 to 35 dB;
m)
preBER max.
The maximum value of preBER. Default value: off. Values available:
1E-4,
1E-5, 1E-6, 1E-7, 1E-8, off. If you select off, preBER parameter will not be
measured when the data log page is measured;
n)
postBER max.
The maximum value of postBER. Default value: off. Values
available: 1E-4,
1E-5, 1E-6, 1E-7, 1E-8, off. If you select off, postBER parameter
will not be measured when the data log page is measured;
o)
Dig Ch SNR min
. The minimum value of C/N ratio for digital channel. Default value:
off. Available values: 15 to 55 dB.
For editing limit plan, choose parameter you want to change with
or keys. Then
tune parameter value with
◄
and
►
keys. For switching off parameter set the minimal
parameter’s value with
◄
key. You will see
«off»
message. Press
or
key to return to
the data log page table. The channels, which failed the check against the selected
parameter of plan limits, will be highlighted with the channel names in inverse color. To
check the page against some other parameter, you will need to open the limit plan
manager again and make a new selection.
