User`s manual

User’s manual · TFF 310 CI
- 5 - TFF 310 CI version_en_1.0 FTE maximal
2. Device Status
In the option “Device Status” are specified the main parameters of the module
at this moment.
- Front End: It indicates whether the module is hooked or without signal.
- Input bit rate: Transfers of data in the terrestrial tuner input.
- Output bit rate: Transfer of data in the module output.
- BER before and after Viterbi: It indicates the error rate of bits of the input
signal before and after the correction produced by Viterbi algorithm.
- MER: Parameter that indicates the quality of the input modulated digital signal,
expressed in dB.
- Noise Margin: It indicates the difference between the value of current C/N
and the value of C/N at the point of pixilation of the signal, that is, the quantity
of dBs of C/N measure that are needed to lose the input signal.
-Temperature: It indicates the current temperature of the module in ºC.
3. Set Front End
In this option you will be able to configure the input parameters of the terrestrial
signal:
- Channel: Input channel of the multiplex that you wish to tune. When you select
the output channel, the field “Frequency (MHz)” will be modified automatically,
adapting itself to the selected channel. Options: C5-C12/C21-C69.
- Frequency (MHz): Input frequency of the multiplex that you wish to tune.
When you modify this field, the field “Channel” will be also modified, indicating
the channel equivalent to the selected frequency in the case that this frequency
corresponds to the frequency of a channel. Options: 170-230 / 470-862 MHz.
- Bandwidth: Selection of the input signal Bandwidth: 8 MHz, 7 MHz and 6
MHz.
4. Modulator Set Up
This option allows configuring the DVB-T/DVB-H modulator of the device.
- Bandwidth: Selection of the Bandwidth of the modulated signal: 8 MHz, 7
MHz, 6 MHz and 5MHz. The 5 MHz option is only supported by DVB-H
standard.
- FFT Mode: Selection of the number of carriers used in the modulation.
Options: 8K, 4K and 2k. The 4k option is only supported by DVB-H standard.
-Spectrum inversion: Activate or deactivate the spectrum reverse in the
modulation.
- Guard interval: Allows selecting the guard interval of the modulation:1/4, 1/8,
1/16 and 1/32.
- FEC: Indicates the relationship between the redundant bits and the
transmitted information bits:1/2, 2/3, 3/4, 5/6 y 7/8. For example, in a FEC =
2/3 relation we will find 2 information bits and 1 redundant bit.
- Modulation: Output modulation format: 4 (QPSK), 16 (16 QAM), 64 (64 QAM).
- Advanced settings:
- Mode: Selection of the modulation standard: DVB-T and DVB-H.
Note: The output useful bits rate will depends on the following
parameters: Bandwidth, guard interval, FEC codification and
modulation. In the
Attachment I you will find all the information related
to the resulting useful bit rate in each configuration.