User guide

Chapter 3 - VMS Configuration 3-17
VMS Network Configuration
Create Antennas
The following steps cover creation of the network antennas. Each antenna is a
site container for upconversion/downconversion and modem devices. First
create a Hub antenna, followed by the Remote antennas, as described below.
1. Right-click on the satellite icon and select Create Antenna from the drop-
down menu.
2. In the General tab of the Create Antenna dialog (figure 3-16), enter the
Name, Operator and Contact Information.
Figure 3-16 Create Antenna dialog
3. Set the Antenna Receive-Gain for the Mesh Compensation Factor.
Refer to link budgets and antenna manufacture specifications for gain
settings. If meshing is not required, leave Rx-Gain at the default setting of 0
dB.
This feature applies a power delta between any meshed remote sites. The hub
is used as the reference value when calculating a power delta value between
remotes with smaller antennas. This is accomplished through comparing its
receive gain to the gain differences between remotes.
During a mesh switch setup, the VMS compares the delta values and
modifies the power adjustments at each remote site to compensate
differences in receive gain. If DPC is enabled, the system will then further
fine tune power to the targeted configuration values.