TV EXPLORER HD+ manual - Promax

USER’S MANUAL. TV EXPLORER HD +3) Code RateAlso known as Viterbi ratio. It defines the ratio between the number of data bitsand actual transmission bits (the difference corresponds to the control bits for errordetection and correction).In DVB-S it permits to choose between 1/2, 2/3, 3/4, 5/6 and 7/8. In DVB-S2 itpermits to choose one of the following values: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5,5/6, 8/9 y 9/10.4) Symbol RateIt is possible to choose over the following values: from 1000 to 45000 kbauds.When selecting the option appears the current value, in order to modify it enter anew value through keyboard when appears the data enter symbol appears on theupper left corner screen.When altering this parameter modifies automatically the value of theChannel Bandwidth and vice versa, due to the relation that exists between thesetwo parameters.Figure 22.- Mesurement configuration screen (QPSK signals).5) Modulations (Only in DVB-S2)Modulation used by carriers. It defines also the system noise immunity (QPSK and8PSK).6) PolarizationIt affects to the signal reception in the SAT band (satellite). It allows to select thesignal polarisation among Vertical/Right (vertical and circular clockwise) andHorizontal/ Left (horizontal and circular counter clockwise) or, to deactivate thepolarization (OFF).7) Sat BandSelects the High or Low frequency band for satellite channel tuning.8) LNB Low Osc.Sets the LNB low band local oscillator.Page 46 01/2011