Specifications

5/9/13 888-2857-001 3-57
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
Platinum VAX-C Series
Figure 3-37 DVB-T Setup Screen 5
RF Output if No MIP Choices are Yes or No. This allows mute of VAX-C if no MIP packets are
detected and they are required. MIP packets are needed in the SFN mode.
Softkeys
Setup Displays Setup screen.
Exciter Home Displays Exciter Home screen.
Table 3-32 Xmtr Home>Exciter Home>Setup>DVB-T Modulator>Next x4
(screen 5)
Fields Explanation
These parameters can only be changed by GUI when in MFN mode. In SFN mode these parameters are
read from MIP (Mega-frame Initialization Packet) packets in transport stream input
Output Bandwidth Choices are 8 MHz, 7 MHz, 6 MHz or 5MHz.
FFT Mode This sets the size of the modulation Fast Fourier Transform (FFT), which in
turn sets the number of subcarriers used in the COFDM (Coded Orthogonal
Frequency Division Multiplex) signal. It also selects whether the in-depth
interleaver (8k) is enabled in 2k and 4k mode. Choices are 2k, 2k (8k
interlaced), 4k, 4k (8k interlaced), or 8k.
Table 3-31 Xmtr Home>Exciter Home>Setup>DVB-T Modulator>Next x3
(screen 4)
Fields Explanation