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The following parameters are displayed on the screen: video carrier frequency and
frequency offset (CR), measured level (VID), as well as reception quality parameters, such
as video to audio ratio (V/A1, V/A2), audio carrier frequency offset, carrier to noise ratio
(C/N) and carrier to noise margin (MARGIN). UPTIME parameter shows elapsed time
since TV channel was locked. In case a parameter value is outside the limits of selected
limit plan (section 4.3.13), it is indicated with red background.
Level and carrier to noise ratio values are indicated in graphical form in left part of the
screen. The bar height indicate current parameter value, and markers indicate minimal and
maximal parameter value achieved.
Channel selecting is performed with the «◄» and «►» key pressing. When pressed
with «Shift» holding, channel is changed with bigger step. Channel can also be selected
by typing its number with alphanumeric keyboard.
When a channel is selected, the Meter will automatically detect the standard and
modulation parameters. It is recommended to use channel plan (section 4.3.12) in order to
make synchronization faster.
To set up the mode, press «F1 / Settings». The following parameters are available
for editing in the dropdown menu:
1) Ref. level. Selection of reference level value. Possible values are 50 to 120 dBuV
and Auto. The setting resolution is 10 dB. The parameter sets up the maximum
possible measured signal level;
2) Level scale. Setting level histogram division value: 2, 5, 10 or 20 dB;
3) Averaging. Selection of measured parameters averaging factor: Off, Low,
Medium, High;
4) Sound indication. Selecting the parameter value sound indication type: off –
switched off, Tone – sound frequency is proportional to parameter value, Pulse –
pulse repetition rate is proportional to parameter value;
5) Indicate parameter. Selecting the parameter to indicate its value with sound:
level – channel power, MER or C/N – MER or C/N value.
Press «F3 / Mode» to get access to additional measurement modes. The following
modes are available in the dropdown menu:
1) HUM. Undesirable modulation measurement mode (section 4.3.8);
2) CSO&CTB. Composite Second Order and Composite Triple Beat measurement in
cable network (section 4.3.9);
3) Statistics. Channel reception quality monitoring (section 4.3.10).
Press F4 / Video to enter TV Video and Sound analysis operating mode. Press F5 /
Info to see channel modulation parameters. Press F6 / Reset to clear all the measurement
results and restart measuring.
Figure 4.6
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