Specifications

5/9/13 888-2857-001 3-103
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
Platinum VAX-C Series
Figure 3-74 on left - ISDB-T Modulator Status Screen 2
Fault Log Displays Fault Log.
Exciter Home Displays Exciter Home screen.
Status Displays Status screen.
Figure 3-75 Xmtr Home>Exciter Home>Status>ISDB-T Modulator>Next (screen 2)
Field Explanation
ISDB-T Mode ISDB-T mode (see Section 2.3 of ARIB STD B-31). Will display mode 1, 2 or 3.
Guard Interval Display only, this is the length of the guard band, expressed as a fraction of the
useful symbol time. Values are 1/4, 1/8, 1/16, or 1/32 of the OFDM Symbol
Length. (see Section 3.14.2 of ARIB STD B-31).
Partial Reception Partial reception flag Yes = Partial reception available. No = No partial reception.
Input Overflow Status of ASI 1 and ASI 2. Green = OK. Red = overflow
Convolutional Coder Layers A, B, and C. Green = OK, Red = Fault.This represents the Convolutional
Coder FIFO underflow and overflow faults for the three layers.
Interleaver Length Layers A, B, and C. Further information is provided in Table 3-12 in ARIB STD
B-31.
Code rate Layers A, B, and C. This is the Convolutional Coding rates for the three layers.
Display choices are 1/2, 2/3, 3/4, 5/6, 7/8.
Modulation Type Layers A, B, and C. Display indicates modulation type for each layer; DQPSK,
QPSK, 16QAM, 64QAM.
Number Segments Layers A, B, and C. This display indicates the number of segments which are
assigned to layers A, B, and C.
Figure 3-73 Xmtr Home>Exciter Home>Status>ISDB-T Modulator (screen 1)
Field Explanation