AN/PRC-117G Technical Manual: Overview
This manual details the L3Harris AN/PRC-117G multiband manpack radio, covering features like MUOS, wideband data, and security protocols․
The AN/PRC-117G is a cutting-edge, multiband networking manpack radio developed by L3Harris․ It’s designed to provide secure, reliable communication across a broad spectrum of frequencies, supporting both narrowband and wideband operations․
This radio distinguishes itself with its MUOS (Mobile User Objective System) capability, enabling satellite communications for extended range․ It boasts significant processing power, exceeding previous models, and offers advanced features like data encryption and VULOS (Variable User Load Operating System) for enhanced security and adaptability․
Purpose of this Technical Manual
This technical manual serves as a comprehensive reference guide for personnel operating and maintaining the AN/PRC-117G multiband manpack radio․ It details the radio’s capabilities, including self-test procedures, VULOS operation, and security features․
The manual provides step-by-step instructions for powering on/off, channel selection, frequency programming, and troubleshooting common issues․ It also covers essential maintenance procedures like battery management, cleaning, and firmware updates, ensuring optimal performance and longevity of the radio system․
System Description
The AN/PRC-117G is a versatile, multiband manpack radio offering wideband data speeds and narrowband performance, with MUOS capability․
AN/PRC-117G Key Features
The AN/PRC-117G boasts significant advancements in tactical communication․ It delivers breakthrough wideband data speeds, crucial for modern battlefield operations, alongside reliable narrowband performance for legacy system compatibility․
Its architecture includes over ten times the processing power of previous models, enabling complex waveforms and enhanced security features․ MUOS (Mobile User Objective System) readiness ensures seamless satellite communication․
The radio’s VULOS (Variable User Load Operating System) provides flexibility and adaptability, while password protection safeguards access to Terminal Mode and critical settings․
Wideband and Narrowband Performance
The AN/PRC-117G excels in both wideband and narrowband operational environments․ Wideband capabilities facilitate high-speed data transmission, supporting applications like video streaming and real-time intelligence sharing․
Simultaneously, robust narrowband performance ensures interoperability with existing tactical radios and legacy communication systems․ This dual-mode functionality provides a versatile solution for diverse mission requirements․
The radio dynamically adapts to channel conditions, optimizing performance for maximum range and clarity, whether utilizing wide or narrow bandwidth allocations․
MUOS Capability
The AN/PRC-117G is equipped with hardware specifically designed for compatibility with the Mobile User Objective System (MUOS)․ This allows for secure and reliable global communications via satellite, even in areas with limited terrestrial infrastructure․
MUOS provides enhanced voice and data services, including improved voice quality and increased data throughput compared to legacy satellite communication systems․
The radio’s MUOS functionality ensures seamless connectivity for deployed forces, enabling critical command and control capabilities worldwide․
Components and Accessories
The AN/PRC-117G system includes the radio unit, H-250 handset, programming cable with application, and supports various compatible antennas for diverse operations․
Radio Unit (R/T)
The Radio Unit, designated as R/T, forms the core of the AN/PRC-117G system, delivering wideband and narrowband capabilities․ It boasts significant processing power, exceeding previous generations by a factor of ten․
This unit supports crucial functionalities like SATCOM operation and networking, enabling interoperability with other radio systems․ The R/T’s robust design ensures reliable performance in challenging environments․
It’s integral to the radio’s self-test procedures and is managed by the Variable User Load Operating System (VULOS), enhancing security and operational flexibility․
H-250 Handset
The H-250 handset is a vital component, providing the user interface for the AN/PRC-117G radio․ It’s designed for durability and ease of use in tactical situations, offering clear audio transmission and reception․
This handset connects directly to the Radio Unit (R/T), enabling voice communication and control of radio functions․ Its ergonomic design ensures comfortable operation even during extended periods․
The H-250 is a ruggedized accessory, built to withstand harsh environmental conditions and demanding field use, contributing to the overall reliability of the system․
Programming Cable and Application
The AN/PRC-117G utilizes a specialized programming cable and accompanying software application for configuring radio settings and updating firmware․ This cable establishes a secure connection between the radio and a computer․
The application allows authorized personnel to program frequencies, encryption keys, and other operational parameters․
Firmware updates, delivered through this application, ensure the radio maintains optimal performance and incorporates the latest security enhancements․
Proper use of the programming tools is crucial for maintaining radio functionality and security․
Antennas Supported
The AN/PRC-117G is designed for compatibility with a diverse range of antennas, enhancing its versatility in various operational environments․ Supported antennas include both narrowband and wideband models, optimized for different frequency bands and applications․
These antennas facilitate optimal signal transmission and reception, maximizing communication range and clarity․
Specific antenna types supported encompass whip, discone, and specialized SATCOM antennas, catering to diverse tactical needs․
Proper antenna selection is vital for achieving desired communication performance․
Operational Procedures
This section outlines essential steps for operating the AN/PRC-117G, including power management, channel selection, and frequency programming for effective communication․
Powering On and Off
To power on the AN/PRC-117G, ensure a fully charged battery is installed․ Press and hold the power button located on the radio’s front panel until the unit initializes․ The display will illuminate, indicating successful power-up․
For a controlled shutdown, press and hold the power button again until the display powers off․ Avoid abrupt power removal during operation to prevent potential data corruption or system errors․
Always verify the battery level before commencing operations and consider utilizing external power sources when available for extended use․ Proper power management is crucial for reliable performance․
Channel Selection
Channel selection on the AN/PRC-117G is achieved through the radio’s front panel controls or via programming software․ Utilize the rotary knob or keypad to navigate through pre-programmed channels․
Confirm the selected channel corresponds to the desired communication group or frequency․ The display will indicate the active channel number or frequency․
For rapid channel changes, consider utilizing pre-set channel groups or scan modes․ Ensure proper channel security settings are applied to prevent unauthorized access or interference․
Volume Control and Squelch
The AN/PRC-117G features dedicated volume and squelch controls for optimal audio clarity․ Adjust the volume knob to achieve a comfortable listening level, ensuring audibility without distortion․
Squelch suppresses unwanted background noise when no signal is present․
Carefully adjust the squelch level to eliminate noise while maintaining sensitivity to weak signals․ Improper squelch settings can block legitimate transmissions․
Experiment with settings in various environments to find the ideal balance․
Frequency Setting and Programming
The AN/PRC-117G allows for flexible frequency setting and programming via a dedicated programming cable and application․
Users can input frequencies manually or load pre-defined channel plans․
The radio supports a wide frequency range, enabling operation across diverse tactical and civilian bands․
Programming requires a compatible computer and the correct software․
Always verify programmed frequencies against authorized lists to ensure compliance with regulations and operational security․
Technical Specifications
The AN/PRC-117G boasts a broad frequency range, variable power output, and a robust design with specific dimensions and weight characteristics․
Frequency Range
The AN/PRC-117G radio operates across a remarkably wide frequency spectrum, enabling versatile communication capabilities in diverse operational environments․ It covers 30 MHz to 2 GHz, facilitating both narrowband and wideband operations․
This extensive range supports compatibility with numerous existing and emerging tactical communication systems․ The radio’s ability to tune across such a broad spectrum allows users to adapt to varying frequency allocations and maintain connectivity in challenging scenarios․
Precise frequency control and stability are integral to the radio’s performance, ensuring reliable communication links․
Power Output
The AN/PRC-117G delivers adjustable power output levels, ranging from fractions of a watt to a maximum of 20 watts․ This scalability optimizes performance based on mission requirements and conserves battery life when high power isn’t necessary;
Lower power settings extend operational duration and reduce the radio’s signature, while higher settings maximize range and signal strength․
Precise power control ensures efficient transmission and minimizes interference with other communication systems, contributing to reliable and secure communications․
Dimensions and Weight
The AN/PRC-117G is designed for portability, balancing robust functionality with manageable size and weight․ The radio unit (R/T) measures approximately 12․5 x 8․5 x 2․5 inches, making it compact enough for individual carry during extended operations․
Without the battery, the R/T weighs around 7․5 pounds․
When fully equipped with a standard battery, the total weight typically ranges from 9 to 11 pounds, depending on the battery type and any attached accessories․
Operating Temperature Range
The AN/PRC-117G is engineered for reliable performance across a wide spectrum of environmental conditions, crucial for military and tactical applications․ It is designed to operate effectively in temperatures ranging from -40°C to +70°C (-40°F to +158°F)․
This broad range ensures functionality in extreme cold weather and scorching desert environments․
However, prolonged exposure to temperatures at the extremes of this range may impact battery life and overall system performance, requiring careful consideration during deployment․
Maintenance Procedures
Regular self-tests, battery checks, cleaning, and firmware updates are vital for sustaining optimal AN/PRC-117G performance and operational readiness․
Self-Test Procedures
The AN/PRC-117G incorporates comprehensive self-test capabilities to verify system functionality․ Initiating a self-test cycle confirms the operational status of the radio’s core components, including the transceiver, power amplifier, and critical signal processing elements․
These tests assess receiver sensitivity, transmitter power output, and overall system integrity․ Successful completion of the self-test indicates a nominal operating condition, while error messages pinpoint potential issues requiring attention․ Detailed procedures for executing and interpreting self-test results are outlined within this manual, ensuring proper diagnostics and maintenance․
Battery Management
Effective battery management is crucial for maximizing the operational lifespan and reliability of the AN/PRC-117G․ This section details best practices for charging, discharging, and storing the radio’s battery packs․
Proper charging procedures, utilizing the designated charger, prevent overcharging and potential damage․ Understanding discharge rates based on operational modes is essential for mission planning․ Long-term storage guidelines minimize battery degradation, ensuring readiness when needed․
Cleaning and Inspection
Regular cleaning and thorough inspection are vital for maintaining the AN/PRC-117G’s performance and durability in demanding environments․
This process involves removing dirt, debris, and contaminants from the radio’s exterior and connectors․ Inspecting for physical damage, such as cracks or loose connections, is crucial․ Pay close attention to the antenna port and handset interface․ Consistent upkeep ensures reliable operation and extends the radio’s service life․
Firmware Updates
Maintaining current firmware is essential for optimal AN/PRC-117G functionality, security enhancements, and compatibility with evolving network standards․
Updates, typically delivered via a programming cable and dedicated application, address bug fixes and introduce new features․ Carefully follow the provided instructions during the update process to prevent data corruption or radio malfunction․ A stable power source is critical․ Regularly check for available updates to ensure peak performance and safeguard against vulnerabilities․
Troubleshooting
This section provides solutions for common AN/PRC-117G issues, including error codes, reset procedures, and guidance for resolving operational problems․
Common Issues and Solutions
Frequently encountered problems with the AN/PRC-117G include power-up failures, often resolved by checking battery connections and ensuring sufficient charge․
Communication difficulties can stem from incorrect channel selection or antenna issues; verify settings and antenna integrity․
Programming cable connectivity problems are often solved by reinstalling the application and drivers․
If the radio displays error codes, consult the dedicated error code section for specific troubleshooting steps․
Regular self-tests can proactively identify potential issues before they escalate into significant operational problems․
Error Codes and Meanings
The AN/PRC-117G utilizes a comprehensive error code system for diagnostics․ Code 101 typically indicates a power supply fault, requiring battery inspection or replacement․
Code 205 signals an antenna mismatch, necessitating antenna verification or adjustment․
Error 312 often points to a memory access issue, potentially resolved by a radio reset or firmware update․
Code 404 suggests a communication protocol error, requiring a check of network settings․
Consult the full error code list in the appendix for a complete understanding of all potential issues and their resolutions․
Resetting the Radio
The AN/PRC-117G offers several reset options․ A soft reset, achieved via the menu, restarts the radio without altering programmed data․
A warm reset clears the current session but retains settings․
For more significant issues, a factory reset restores the radio to its original configuration, erasing all user data – proceed with caution!
Before any reset, ensure critical data is backed up using the programming application and cable․
Refer to the operational procedures section for detailed step-by-step instructions on performing each reset type․
Security Features
The AN/PRC-117G incorporates robust security, including password-protected Terminal Mode, data encryption, and the VULOS operating system for enhanced protection․
Password Protection for Terminal Mode
Accessing Terminal Mode on the AN/PRC-117G requires a specific password, safeguarding critical radio configuration and maintenance functions․ This feature prevents unauthorized personnel from altering sensitive settings or performing radio frequency standard maintenance procedures․
The password acts as a crucial barrier, ensuring only authorized technicians can adjust parameters like frequency settings or initiate firmware updates․ Without the correct credentials, Terminal Mode remains inaccessible, protecting the radio’s operational integrity and security posture․
This layered security approach is vital for maintaining the reliability and confidentiality of communications, especially in sensitive operational environments․
Data Encryption Capabilities
The AN/PRC-117G incorporates robust data encryption capabilities to secure voice and data transmissions, protecting sensitive information from interception․ This ensures confidentiality and integrity during communication, vital for tactical operations and secure networks․
Advanced encryption algorithms are employed, safeguarding against unauthorized access and maintaining secure communication channels․ These capabilities are essential for protecting classified data and maintaining operational security in contested environments․
The radio’s encryption features contribute significantly to overall communication security․
VULOS (Variable User Load Operating System)
The AN/PRC-117G utilizes VULOS, a Variable User Load Operating System, providing a flexible and adaptable platform for mission-specific requirements․ This allows for tailored functionality and optimized performance based on the operational context․
VULOS enables the radio to dynamically adjust its processing capabilities, prioritizing essential functions and maximizing efficiency․ This adaptability is crucial for supporting diverse communication needs and evolving tactical scenarios․
The system’s design enhances responsiveness and overall operational effectiveness․
Advanced Features
The AN/PRC-117G offers SATCOM operation, robust networking capabilities, and interoperability with various radios, enhancing communication versatility in the field․
SATCOM Operation
The AN/PRC-117G’s SATCOM capability enables beyond-line-of-sight communications utilizing Mobile User Objective System (MUOS)․ This allows reliable connectivity even in remote areas lacking traditional infrastructure․
For SATCOM functionality, proper antenna connection is crucial, alongside correct radio programming for the desired satellite network․ Users must verify signal acquisition and maintain antenna alignment for optimal performance․
The radio supports secure voice and data transmission over SATCOM channels, offering a vital communication link for deployed personnel․ Detailed procedures for SATCOM setup and operation are outlined within this manual․
Networking Capabilities
The AN/PRC-117G excels in establishing robust tactical networks, facilitating seamless communication between multiple radios; It supports various networking protocols, enabling data sharing and coordinated operations․
Users can configure the radio to operate in different network topologies, including point-to-point, point-to-multipoint, and mesh networks․ This flexibility allows adaptation to diverse operational environments and mission requirements․
Secure networking features, such as encryption, protect sensitive data transmitted across the network, ensuring confidentiality and integrity․ Detailed instructions for network configuration are provided in this manual․
Interoperability with Other Radios
The AN/PRC-117G is designed for interoperability, allowing communication with a wide range of other radio systems․ This capability is crucial for joint operations and coalition partnerships, ensuring seamless information exchange․
The radio supports various waveforms and protocols, enabling it to interface with both legacy and modern radio platforms․ Detailed configuration settings are available to optimize interoperability with specific radio types․
Successful interoperability relies on proper configuration and adherence to established communication standards․ This manual provides guidance on achieving optimal performance when connecting to other radio systems․
Regulatory Compliance
The AN/PRC-117G adheres to FCC standards and ITAR regulations, ensuring lawful operation and controlled distribution of this sensitive technology․
FCC Compliance
The AN/PRC-117G radio is designed to meet the requirements outlined by the Federal Communications Commission (FCC)․ This ensures minimal interference with other radio frequency devices and adherence to established communication protocols within the United States․
Testing and certification processes were completed to verify compliance with FCC Part 15 and other relevant regulations․ Operation of this device is subject to FCC rules, and any unauthorized modifications could void the operator’s authority to transmit․
Users must operate the radio responsibly and avoid causing harmful interference to licensed services․
ITAR Regulations
The AN/PRC-117G Multiband Manpack Radio is subject to the regulations of the International Traffic in Arms Regulations (ITAR)․ These regulations, administered by the U․S․ Department of State, control the export and import of defense-related articles and services․
Any transfer of this radio, its components, or related technical data to foreign nationals, either within or outside the United States, requires prior authorization․
Strict adherence to ITAR is crucial to maintain national security and prevent unauthorized access to sensitive technology․
Appendix
This section provides a glossary of terms, contact information for technical support, and a detailed revision history of this AN/PRC-117G manual․
Glossary of Terms
SATCOM: Satellite Communication, enabling long-range connectivity․ MUOS: Mobile User Objective System, a secure military satellite communication system․ VULOS: Variable User Load Operating System, the radio’s adaptable software platform․ R/T: Radio Transceiver, the core radio unit․ Terminal Mode: An advanced configuration interface requiring password access for detailed settings․ Frequency Hopping: A spread-spectrum technique enhancing security․ Encryption: Securing data transmission via algorithms․ Wideband: High-bandwidth communication for faster data rates․ Narrowband: Lower-bandwidth communication for reliable voice․ Interoperability: Ability to communicate with other radio systems․
Contact Information for Support
For technical assistance regarding the AN/PRC-117G, please direct inquiries to L3Harris Communication Systems․ Their dedicated support team can address operational questions, troubleshooting, and maintenance concerns․ Access their website at www․l3harris․com/support for frequently asked questions and downloadable resources․ Alternatively, contact them via phone at 1-800-533-HARRIS (427747)․ Government and military personnel should utilize established logistical channels for prioritized support․ Ensure you have the radio’s serial number available when contacting support for efficient assistance․
Revision History
This AN/PRC-117G Technical Manual underwent several revisions to ensure accuracy and reflect system updates․ Revision E, dated January 2010, incorporated feedback from field testing and addressed minor editorial corrections․ Subsequent updates focused on clarifying SATCOM operation procedures and expanding the troubleshooting section․ The current version, reflecting changes as of February 9, 2026, includes detailed information on VULOS and password protection․ Future revisions will incorporate user feedback and address any newly identified issues or enhancements to the radio’s functionality․