Specifications

3-42 888-2857-001 5/9/13

WARNING: Disconnect primary power prior to servicing.

Section 3 Operation

Platinum VAX-C Series

Figure 3-26 ATSC Modulator Setup Screen 2

Status Displays Status screen.

Setup Displays Setup screen.

Exciter Home Displays Exciter Home screen.

Table 3-21 Xmtr Home>Exciter Home>Setup>ATSC Modulator>Next (screen

Fields Explanation

Tier ID Tier of the network that this transmitter / exciter corresponds to in accordance with

ATSC's A/110 standard. This data must match the tier setting that has been set up

in the Distributed Transmission Adapter upstream.

TX ID Designates which transmitter this is in accordance with the Distributed

Transmission network design, in accordance with ATSC's A/110 standard. This

Tier and Transmitter must match the tier and transmitter settings that are set back

at the studio or network control point in the Distributed Transmission Adapter for

this transmitter.

Transmitter and

Antenna Delay

Enter the delay value in microseconds. This is the throughput delay of the RF

signal after it leaves the exciter network delay circuit and travels through the rest

of the transmitter, transmission line, and antenna. It is also known as “TAD”, this

is a calculated or estimated number that is incorporated in compliance with the

ATSC A/110 Distributed Transmission standard. The exciter will use this value as

part of it's calculation of emission time.

Table 3-20 Xmtr Home>Exciter Home>Setup>ATSC Modulator (screen 1)

Fields Explanation