8
206-4218
This document provides installation and setup support only for the OAT100R. One or more
VHF and/or UHF antennas must be installed before you proceed to set up the OAT100R. LG
recommends that the system be professionally installed.
Check the following items before you begin the OAT100R installation and setup procedures.
VHF and/or UHF Antennas
__ Create a station plan for the OAT100R terrestrial input(s).
__ Install the appropriate antenna(s) in accordance with the desired channels.
The VHF and/
or UHF antenna(s) must be located where it/they will have unobstructed access to the
terrestrial signals. Amplify the antenna distribution as necessary.
__ Point the antenna(s) so as to achieve the best signal quality (use appropriate equipment
for measurement purposes).
__ Up to eight 75 ohm RG-6 or larger coaxial cables from the terrestrial antenna distribution
system should be available for connection to the OAT100R.
__ Measure the signal level at each of the OAT100R RF inputs. For proper system
performance, the signal level at each RF input must be b3 dBm (+52 dBmV)
and
-83 dBm (-34 dBmV)
.
A nominal value of -53 dBm (-4 dBmV) is
recommended. Note that
additional equipment (i.e., attenuators) may be required to adjust the signal level.
OAT100R
__ Unpack the OAT100R unit and all accessories.
OAT100R Accessories:
• AC Power Cord and Adapter
__ Select the location for mounting the OAT100R. Ensure that adequate ventilation is available.
__ Obtain the necessary attachment hardware to mount the OAT100R chassis in its targeted
location.
__ Plan and install the necessary cabling and network (Ethernet) and AC power access for
the OAT100R. You will also need the following to connect a PC directly to the OAT100R
for system setup purposes: FTDI TTL-USB cable (P/N TTL-232R-5V-AJ).
Channel Assignments for RF Output
__ Create a channel assignment plan for the installation site, or modify an existing plan to
incorporate the RF output of the OAT100R. Ensure that up to four contiguous CATV
broadcast channels are allocated for the OAT100R RF output. The OAT100R uses either
a 256-QAM or 64-QAM modulation format, thereby occupying approximately 24 MHz of
frequency spectrum.
The RF start channel is user-assigned during system setup, and the remaining channels
are then automatically assigned per EIA-542 STD CATV frequency allocation standards.
For example, if the RF start channel assignment is channel 2, the three remaining channels
will be 3, 4, and 5. However, if the RF start channel assignment is 6, the three remaining
Setup Information
