Planar IT-100 Operating Manual page 36

The table indicates the TV channel parameter names and their minimum and
maximum limit values against which the measured parameters are checked in the
terrestrial TV channels measurement modes. A separate parameters setting page is
provided for each channel type, which can be opened by pressing the «F1 / Type» key. To
save the changes press "F6 / Save".
The following channel types and their parameter sets are available.
1) General. General limit plan settings
− Level delta:
separately for analog channels and digital channels.
− Analog/Digital Delta: Minimal and maximal available level difference
between analog and digital channels.
− Adj. Channels Delta: maximal available level difference between adjacent
channels. Analog and digital channels are never supposed to be adjacent.
2) Analog channels. Channel with analog modulation.
− Video Level:
− Video/Audio-1:
audio ratio for first audio subcarrier.
− Video/Audio-2 (Dual):
to-audio ratio for second audio subcarrier (for channels with A2 stereo
broadcasting).
− Video/Audio-2 (NICAM):
to-audio ratio for second audio subcarrier (for channels with NICAM stereo
broadcasting).
− C/N:
3) Pilot signal. Unmodulated carrier.
− Level:
− C/N:
4) FM radio. FM radio.
− Level:
5) Digital channels. Channel with digital modulation of unknown type.
− Power:
− C/N:
6) DVB-C/J.83 channels. Digital cable TV channels.
− Power:
− MER/QAM64:
QAM64 modulation.
− MER/QAM128:
QAM128 modulation.
2
Pilot signals and FM radio are not checked against general parameters
Figure 4.23
2
.
Maximal available channels level difference. Performed
Minimal and maximal available channel level.
Minimal and maximal available values of video-to-
Minimal and maximal available values of video-
Minimal and maximal available values of video-
Minimal available C/N ratio value.
Minimal and maximal available level.
Minimal available C/N ratio value.
Minimal and maximal available channel level.
Minimal and maximal available channel power.
Minimal available C/N ratio value.
Minimal and maximal available channel power.
Minimal available MER value for channels with
Minimal available MER value for channels with
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