Televes Serie H-60 - Manual (Page 134)

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Analyzer
3.3.4.3.1.2.- V/A
When you select this function, you choose the measurement of the Video Carrier Level / Audio
Carrier Level ratio as a main measure.
The central frequency of the spectrum is taken as the video carrier frequency, and the frequency
indicated in the audio carrier selection is taken as that of the audio carrier (this function is in
Config. Measure => Channels/Standards => Audio Carrier ).
3.3.4.3.1.3.- C/N
In the same way as with the V/A measure, on selecting this function, the main measure
becomes the Carrier / Noise Power ratio. The carrier level is taken on the central frequency
and the frequency for measuring the noise power is calculated automatically by the equipment.
3.3.4.3.1.4.- Field Strength
Operation similar to paragraph 3.3.3.2.1.5 field strength.
3.3.4.3.1.5.- Bandwidth
This parameter is necessary for the proper measurement of the C/N, since it will be used to
correct the value of the noise level measured, so as to reference it to the whole bandwidth of
the channel.
When it is selected, it will be seen at the bottom right of the screen, and the measure selected
will momentarily disappear.
With or the cursors / we can vary this parameter, and confirm the value by
using the keys or .
This measure is only possible on the terrestrial band.
01031052_002_EN:103130_00.qxd 10/07/2013 8:01 Página 134