Connections And Final Checks; Possible Operations With The Transmitter In Operation; Communication - Hitachi EC701HP Operation Manual

Section 4 - Initial Activation (ATSC Transmitters)
4.2

Connections and Final Checks

Connect Transport Stream (TS) cable at the transmitter's upper panel. At this time the LED
SYNC. LOSS and the LED of the CURRENT ALARM will extinguish and the LED PAST ALARM
will light. Access the menu of the digital exciter and erase the alarm log. After this, only the LED
will remain lit named POWER ON.
Main Menu – System Alarms / Log – Clear Alarm Log.
4.3

Possible operations with the Transmitter in Operation

A- Power Changing – POWER SETUP ([1100])
The alteration of the transmitter power is something possible and accessible to the customer
through the screen POWER SETUP ([1100]) by software navigation Menu, in the digital display,
according to instructions given in the section 5.
It is noteworthy that after the change of the output power of the transmitter, the intermodulation
levels will change.
B- Transmitter's Pre-Correction
The linear and non-linear pre-corrections are previously applied to the transmitter in the factory.
C- Enable and disable the linearization
Non-Linear Pre-Correction - You can enable or disable the non-linear pre-correction by the
front panel.
Linear Pre-Correction - You can enable or disable the linear pre-correction by the front panel.

4.3.1 Communication

A- Via Ethernet
This equipment has a Web Page server accessed by the Ethernet port located on the front
panel of the digital exciter, which has all the functionality of the keyboard interface + display. Eg,
settings, measurements, alarms, etc.This interface can be used for remote management.
B- Via USB with the Digital Exciter
The communication of the digital exciter via USB port, is only possible with the use of the software
GUI8001 (optional).
Manual Rev. 0.1 - February 2018
4-9