User manual
efgis.com
7
Operation Manual
2. System Components
2.1 Product Overview
This section describes the DSG1 unit, including its accessories.
The DSG1 is a dual-band signal generator that inserts an ultra-low level signal between
quadrature amplitude modulation (QAM) channels, without causing interference or MER deg-
radation. The DSG1 can be operated simultaneously in both aeronautical and LTE bands us-
ing two separated RF outputs. The rst band operates from 118-140 MHz to satisfy govern-
ment cable leakage regulatory requirements, and the second band operates from 572-960
MHz to cover cable leakage affecting operation of the long-term evolution (LTE) cellular band.
Each individual carrier can be inserted in the downstream cable network by connecting the
two RF outputs to the forward signal combiner. One physical RF output is used per carrier.
The global operating status is shown on the LCD display located on the DSG1’s front panel.
Once installed, this unit requires no further mechanical setup.
2.2 Initial Verification
Your DSG1 unit is calibrated and ready to use right out of the box. Upon reception, visually
inspect each item for any damage that may have occurred during shipping. If you see any
signs of physical damage, please contact Efgis:
• Callers from the U.S. and Canada can dial + 1 888-495-6577 (toll-free number).
• International callers can dial + 1 514-495-0018.
Make sure no items are missing. Your package should contain all the standard items as well
as any accessories you may have ordered. If you ordered the DSG1 - Head-end Based Digital
Signal Generator kit, the following items are included:
• DSG1 rack mount unit
• 2 rack mount right angle brackets
• AC/DC adapter
• Operation manual (this manual).