Hughes AN4-074-DF installation manual Inserting the wedge nut bolt

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To connect the feed arm to the antenna reflector:

1.Insert the 5/16-18 wedge nut, thinner end first, into the slot provided on the back of the reflector, as shown in Figure 25. The wedge nut is keyed so that it will fit properly only one way into its slot in the reflector.

Make sure the hole in the wedge nut is aligned with the hole in the reflector so you can insert the bolt. See Figure 25.

Antenna reflector

 

 

5/16 - 18

 

 

wedge

 

 

nut

Feed arm

 

 

 

 

Wedge nut

Transmitter

 

Close-up view

 

 

5/16-in.

 

 

flat washer

 

5/16 - 18

5/16-in.

T0145009

hex bolt

lock washer

 

Figure 25: Inserting the wedge nut bolt

2.Install the feed arm into the feed support socket on the underside of the antenna reflector.

If you have the reflector turned upside down to insert the feed arm, the orientation is the opposite of that shown in Figure 25.

3.Use a 1/2-in. wrench to secure the feed arm with a 5/16-in. flat washer, 5/16-in. lock washer, and 5/16-18 hex bolt. Use a torque wrench to tighten the hex bolt from 8 ft-lbf to 10 ft-lbf.

Chapter 3 • Installing the radio and antenna assemblies 1035567-0001 Revision A

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Contents Installation Manual for Ku-band Antenna Model AN4-074-DF Copyright 2004, 2005 Hughes Network Systems, LLC Types of warnings used in this manual Important safety informationAntenna installation safety Important safety information 1035567-0001 Revision a Important safety information 1035567-0001 Revision a Vii Viii Contents Chapter Cabling and connections Figures Xii Tables Xiv Scope and audience Organization About this documentRevision record Broadband satellite system components OverviewShows the .74 m antenna installed on a pole mount Install the antenna on the mount Antenna installation overviewMount Installation Guide HNS Tasks related to antenna installationAntenna kit components Antenna parts and required toolsAz/el cap Feed arm unattached Trimast or other antenna mount Details Quantity Small hardware listTool Details ToolsAntenna Site Preparation and Mount Installation Guide Installing the radio and antenna assembliesDetermining the pointing values Revolving plate Assembling the Az/El capAligning the Az/el cap bolts Antenna adjustments for elevation and polarization Installing the Az/El cap onto the antennaElevation Locating the elevation reference edge Polarization Placing the Az/El cap on the antenna reflector Installing the fine elevation pointing tool Shim location next to Tria Installing a shim for vertical transmit polarizationTria Direction of Tria rotation for vertical polarization Horizontal polarization Securing the O-ring Installing the radio assembly on the feed armRadio assembly installed on the feed arm Connecting the feed arm to the antenna reflectorInserting the wedge nut bolt Installing the antenna assembly onto the mast Feed horn groove Attaching the optional shroudShroud screws Cabling and connections Routing the cables at the ODU Transmit and receive cable configurationsConnecting the transmit and receive cables Connecting the receive cable to the LNB Ground screw on the transmitter Ground connectionCabling and connections 1035567-0001 Revision a Pointing the antenna Antenna pointing overview Using the installation software Peaking the signalOPI optional tool OPI Prerequisites for antenna pointing Adjusting azimuth, elevation, and polarization Adjusting the antennaPointing adjustments on Checking the azimuth, elevation, and polarization settings Imu Receive pointingPointing the antenna 1035567-0001 Revision a Elevation nuts Pointing the antenna 1035567-0001 Revision a Polarization Isolating the transmit signal Pointing the antenna 1035567-0001 Revision a Removing the fine elevation pointing tool Final stepsAcronyms and abbreviations Acronyms and abbreviations 1035567-0001 Revision a Index Index 1035567-0001 Revision a

AN4-074-DF specifications

The Hughes AN4-074-DF is an advanced military communication system designed to deliver reliable and secure data transmission in diverse operational environments. Built with cutting-edge technologies, this system plays a critical role in enhancing situational awareness and facilitating effective communication among military personnel.

One of the primary features of the AN4-074-DF is its robust design, which allows it to withstand harsh conditions, including extreme temperatures, humidity, and shock. This durability is essential for military operations, where equipment is often exposed to challenging environments. The system incorporates advanced materials and engineering techniques to ensure longevity and reliability.

The AN4-074-DF utilizes state-of-the-art encryption technologies that provide secure communication channels, making it difficult for adversaries to intercept or decipher sensitive information. This is crucial for military operations where the security of data transmission can significantly influence mission success. The system employs various encryption standards that conform to military specifications, ensuring that it meets stringent security requirements.

Another key characteristic of the AN4-074-DF is its versatility. It is designed to support multiple communication protocols, enabling interoperability among different military platforms and systems. This flexibility allows for seamless integration into existing military networks, enhancing operational effectiveness and coordination among units.

The system also boasts an intuitive user interface, which streamlines operations and minimizes training time for personnel. The user interface is designed for ease of use, allowing operators to focus on their mission rather than struggling with complex technology. This feature is particularly advantageous in high-stress situations where quick decision-making is vital.

In addition to its communication capabilities, the AN4-074-DF is equipped with advanced situational awareness tools. These tools provide real-time data and analytics, helping military leaders make informed decisions based on current battlefield conditions. The ability to access critical information rapidly can be a game-changer in dynamic military operations.

Overall, the Hughes AN4-074-DF stands out as a highly capable communication system that meets the demanding needs of modern military operations. With its durability, security features, versatility, user-friendly interface, and advanced situational awareness capabilities, it plays a pivotal role in enhancing communication and coordination among military forces. This system exemplifies the ongoing evolution of military technologies aimed at improving operational efficiency and effectiveness on the battlefield.