OmniSTAR 5220HP, User Manual

Page: 11 / 83

OmniSTAR 5220HP User Manual
Issue 1.32 12/2010
11
RF Input
The 5220HP is designed to work with active GPS antennas with a LNA gain of
10 to 40 dB. The purpose of this LNA gain above the minimum requirement of
10 dB is to accommodate for losses in the cable system. Essentially, there is a
maximum cable loss budget of 30 dB for a 40 dB gain antenna. Depending on
the chosen antenna, the loss budget will likely be lower (a 24 dB gain antenna
would have a 14 dB loss budget).
When using an antenna and antenna cable please make sure not to exceed
the loss budget. Otherwise, the tracking performance of the 5220HP will be
compromised.
The standard antenna for the 5220HP receiver is the Ant-Aero-06 antenna.
Figure 2: Ant-Aero-06 antenna