ASC Signal NGC Antenna Control System Indoor Unit (IDU)

  • Support for single speed AC or DC Pol rotators
  • Automatic positioning of antennas to pre-programmed look angles
  • Optical Interfacility link
  • Local control from the indoor unit
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ASC Signal NGC Antenna Control System Indoor Unit (IDU)

The ASC Signal NGC Antenna Control System is an advanced level antenna control system intended for applications with demanding tracking requirements, complex geometries, and dynamic conditions.

The NGC Antenna Control System offers precise, user-friendly control over the basic motorization kits for ASC Signal Corporation antennas with sizes 2.4 meters and up.

The NGC-IDU features a SmarTrack® predictive tracking mode that utilizes a patented Three-Point Peak Algorithm that saves wear on the antenna motors and jacks.

The NGC IDU provides convenient features such as straightforward color graphics, LCD touch screen interface, and a number of powerful remote control software protocol options, the NGC Antenna Control System is an ideal solution for medium- to large- sized earth stations requiring complex pointing and tracking functions.

NGC-IDU Design Features

  • Graphical User Interface – Common shared interface design between controller, handheld, remote software package. Enables ease of use, reduced training, and advanced graphical operations & diagnostics.
  • Open, Standards Based Platform – Non-proprietary hardware and software design based on proven and reliable technology. User customizable open source license User Interface.
  • Connectivity & Control – Full complement of hardware interfaces for legacy and next generation technologies providing flexible accessibility for system networking, monitoring, control and maintenance.
  • Flexible Modular Upgrade Architecture – Designed for field upgradable drop-in flexibility of hardware and software enhancements for expanded functionality.
  • Fiber Optic Interfacility Link – For secure and reliable communications, and protection against lightning, interference and transient voltage.

NGC System Description

The NGC system is physically divided into an Indoor Unit (NGC-IDU) and an Outdoor Unit (NGC-ODU), connected by a dedicated multimode optical fiber link.

The functional allocation between NGC-IDU and NGU-ODU follows one basic principle: the indoor unit generates all pointing commands and the outdoor unit executes the move and verifies they were completed.

All tracking functions are isolated to the NGC-IDU, which as mentioned is indoors, where the beacon receiver or other signal measurement device will be located.

All motion control functions are isolated to the NGC-ODU, which is located on positioner or pedestal, allowing termination of all local control cables after short runs and minimizing interconnection between indoor and outdoor to AC power, transmit and receive signals, and a single control fiber pair.

No configuration of the dedicated link between NGC-IDU and NGC-ODU is required, this avoids the need for the installer to understand TCP/IP networking configuration.

The ASC Signal NGC-IDU is a modular, scalable, adaptable advanced-level antenna pointing and tracking controller intended for motorized satellite earth station antennas used with geosynchronous communications satellites.

The NGC-IDU is a 3RU 19-inch rackmount chassis that is mounted inside the equipment shelter or building. It provides the user interface and the interface to the tracking receivers. All NGC system variants have the same NGC-IDU package. The system is intended for new installations, and as a replacement for legacy control systems such as the ASC Signal APC100, APC400, and ACS3000 systems.

The NGC provides the following basic and optional features:

  • Variable Speed motor control for two- and three-axis motor systems complying with the standard ASC Signal interface, using VFDs for driving the Az and El axes
  • Support for single speed AC or DC Pol rotators
  • Automatic positioning of antennas to pre-programmed look angles
  • Optical Interfacility link
  • Local control from the indoor unit through an advanced touch screen LCD and keypad
  • Automatic installation commissioning assistance
  • 10/100 BaseT Ethernet interface for external M&Cs (via the IDU)
  • Remote control through network-based and serial-port-based communications protocols, including both legacy protocols and SNMP
  • Integral beacon receiver interfaces to support ASC Signal’s patented three-point peaking step-track and SmarTrack® hybrid feedback/predictive program tracking algorithms
  • NORAD and Intelsat program tracking
  • Optional Monopulse tracking for Ka-band applications
  • Optional integrated subreflector tracking (SRT) capability for high-accuracy Ka-band tracking, including hybrid main dish and SRT positioning and tracking

NGC-IDU Front Panel

The NGC-IDU front panel has an 800x480 color touch screen Liquid Crystal Display (LCD) and 30 key areas. From this interface, the user can perform all functions to configure, control, and monitor operation of your antenna. The front panel also includes a USB port.

NGC-IDU Touch Screen Display

The touch screen display is the key component to control the NGC-IDU. By its optimized design the NGC provides intuitive and easy to use menus. As an example, the screen is composed of four main zones, the top menu bar shows information such as satellite name, azimuth, elevation, polarization, signal level and faults; the center part of the screen displays graphs or menus as well as virtual keyboard; the left side shows sub-menu buttons while the bottom part provide shortcuts to specific functions.

NGC-IDU Keypad

The NGC-IDU front panel also includes a touch-sensitive “keypad” with built-in LED indicators for tracking state, alarms, signal strength, and other status indications.

From the NGC-IDU front panel, the user can jog the antenna, jog the SRT, control options such as redundancy, heaters and jump to several convenient starting points in the menu/screen tree.


The NGC-IDU front panel includes a USB port which may be used for installing an external keyboard temporarily or for installing a USB jump drive that can be used to upload or save controller configuration or files.

NGC-IDU Interface

The NGC-IDU has also an Open Source Interface this allows experienced customer to customize the interface for specific applications.

More Information
Country of ManufactureUnited States
ManufacturerCPI Satcom
Input Power100 - 240 VAC
Warranty2 Years
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You're reviewing:ASC Signal NGC Antenna Control System Indoor Unit (IDU)
101 Eagle Road Building 7. Avon, Colorado. 81620.
T : (970)-748-4250.