HE4000 Encoding System
Introduction
2.6.3 SMPTE-310M Out
SMPTE-310M out is a female BNC connector with 75Ω impedance. The port outputs a 19.392568
or 38.785316 SMPTE-310M transport stream.
2.7 Modulator Output to Upconverter
The internal modulator outputs a modulated IF signal, which is connected to an upconverter.
Connections are made through the Tx If Out port. This port is a female BNC connector that
outputs a 70 MHz, 140 MHz, or L-Band DVB-compliant, QPSK, 8PSK, or 16QAM modulated,
FEC encoded IF signal at symbol rates from 1 to 68 Msps.
Before attaching cables from the modulator output to the upconverter,
verify that the modulator power is off until ready to begin satellite
transmissions.
To cable the modulator output to an upconverter, connect the output of the internal modulator
from 70/140 IF or L-Band Output to an RF upconverter.
There is also an L-Band Monitor port available for direct monitoring connection to an IRD.
01-0951-404 Rev B
2-13
