Fte maximal MEDIAMAX MINI S2 CT User Manual download pdf (Page 53)

User’s Manual - mediaMAX MINI

ENGLISH

Reserved of technical modiﬁ cations and/or errors

rev 2.1

With the spectrum on screen, move the rotary wheel to sweep the frequency band to spot the target

signal. If only spectrum is needed on the monitor, press the buttom

“spectrum” to active it.

In cable band,

“nav” key selects only frequency mode to sweep the band normally by frequency with

100 KHz steps.

10.3.3 Measurement selection

With the target signal identiﬁ ed, it’s necessary to select the signal type (analog or digital). Press

“op-

tions”

key, select “Carrier mode” and there will be two differents options:

Analog: if analog signal

Digital: if digital signal

Select one of them and conﬁ rm clicking the wheel.

For digital cable signal, it is necessary setup signal parameters. Select “Digital modulation”. It is

necessary to setup the following parameters:

1. Symbol rate: This parameter should be ﬁ xed according to the Bit Rate (symbol rate) of

the channel, data which is supplied by the operador.

2. Spectrum inversion: Pushing on this ﬁ eld, you can see the following options:

- Auto: Enables the automatic way of spectrum inversion.

- On: Enables the manual way of spectrum inversion.

- Off: Disables the manual spectrum inversion.

You should enabled in case it is necessary to invert the spectrum. If you select inco-

rrectly the inversion of the spectrum, the reception will be not correct.

3. Constellation: This parameter will be ﬁ xed according to the modulation of the channel.

This data is supplied by the operator of the channel. You can select different constella-

tions (modulations): 16-QAM, 32-QAM, 64-QAM, 128-QAM y 256-QAM.

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Fte maximal MEDIAMAX MINI S2 CT User Manual Page 53