Tunnel Radio https://tunnelradio.com/ Leading-edge technologies in closed space communications Fri, 23 May 2025 18:02:56 +0000 en-US hourly 1 Fiber Optic Expansion System https://tunnelradio.com/fiber-optic-expansion-system/?utm_source=rss&utm_medium=rss&utm_campaign=fiber-optic-expansion-system https://tunnelradio.com/fiber-optic-expansion-system/#respond Thu, 01 Jun 2023 20:00:28 +0000 https://tunnelradio.com/?p=1837 Tunnel Radio’s fiber optic (FO) solution provides scalable and seamless connectivity under all conditions, especially for expansive operations.

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Fiber Optic Expansion System

Scalable and seamless connectivity

Features
Product Sheets

A scalable solution for large-scale operations

Tunnel Radio’s fiber optic (FO) solution provides scalable and seamless connectivity under all conditions, especially for expansive operations. Traditional radiating cable (leaky feeder) RF solutions link multiple sites together with the use of hard-wired repeaters, extending coverage down the line with amplifiers. Tunnel Radio’s fiber-optic backbone connects multiple worksites or sections of your leaky feeder system into one larger, connected system. The resulting hybrid FO-RF system is easier to maintain – and use.

Fiber Optic Expansion System

Features

  • Eliminate coverage issues for improved safety, eff­iciency, and reliability
  • Scalable and cost-eff­ective solution for multi-mile and multi-site operations
  • Link multiple locations and extend coverage without the need for additional repeaters

Benefits

  • Simplify installation and maintenance by minimizing possible failure points
  • Reduce potential for system down events with a reliable fiber-based hardline connection
  • Decrease repair times when paired with our TRCentral system monitoring solution

Brochures & Product Sheets

Fiber Optic Extension Product Sheet
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/fiber-optic-expansion-system/feed/ 0 Radiating Cable: The Answer to the Confined-Space Communications Challenge https://tunnelradio.com/radiating-cable-the-answer-to-the-confined-space-communications-challenge/?utm_source=rss&utm_medium=rss&utm_campaign=radiating-cable-the-answer-to-the-confined-space-communications-challenge https://tunnelradio.com/radiating-cable-the-answer-to-the-confined-space-communications-challenge/#respond Thu, 20 Apr 2023 16:27:57 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=1013 In hard-to-reach environments like mines, dams, and railroads, clear and reliable communication is key. Not only for efficiency and productivity—though these certainly get a boost when teams are well-connected—but for worker safety as well. In the days before radio communication, mine workers used bell or whistle signaling systems to convey basic messages. With the introduction... Read more »

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]]> In hard-to-reach environments like mines, dams, and railroads, clear and reliable communication is key. Not only for efficiency and productivity—though these certainly get a boost when teams are well-connected—but for worker safety as well.

In the days before radio communication, mine workers used bell or whistle signaling systems to convey basic messages. With the introduction of the telephone in the early 20th century, mines and other confined-space environments used ruggedized, hard-wired telephones installed in key areas.

A century and many technological innovations later, underground communication continues to be a challenge for workers in underground and remote environments. Hard-wired phone systems like the one described above are still used today, and while they are reliable, their fixed locations make them inconvenient for workers spread across great distances. For one, there won’t always be someone immediately present at the other end of the line. Furthermore, workers may need to walk several minutes to reach a phone—which may be impossible or take up valuable time during an emergency, when every second counts.

Other systems use wireless hotspots to boost radio signals. These are far more portable but are prone to “dead spots” in coverage, since enclosed spaces by nature block radio signals. This makes them more convenient than their hard-wired counterparts, but much less reliable, especially in emergency situations.

The best of both worlds: Radiating coax (leaky feeder) systems

Radiating coaxial cable systems—also known as “leaky feeder” systems—are a hybrid communication system that employs both wired and wireless features. In doing so, leaky feeder systems provide reliable, full-coverage, and portable two-way radio communication for confined-space environments.

The leaky feeder cable is designed to “leak” radio signals from the entire length of the cable, similar to how sprinkler hoses work. The coaxial cable becomes the backbone of the system throughout the worksite, with amplifiers installed in key locations to boost RF signal strength to support additional runs of cable. With this system in place, workers can communicate with each other using radios and walkie-talkies from anywhere, at any time.

In this way, leaky feeder systems solve the challenge of confined-space communications. The hard-wired coaxial cable backbone is easy to install and maintain, and ensures a strong, reliable signal that doesn’t degrade over distance. And because workers can communicate with portable, hand-held radios, teams can remain in constant contact—a critical component of a safe and efficient workspace.

Your partner in underground communications

With more than 35 years of expertise in confined space communications, Tunnel Radio knows firsthand that reliable connectivity and communication isn’t just a matter of convenience—it’s a critical component of worker safety. Specializing in two-way radio communication using radiating coax, Tunnel Radio primarily serves clients in mining, rail and critical infrastructure.

As part of our full-service approach, Tunnel Radio not only designs, engineers and manufactures custom radio communication solutions in the United States, but also provides installation and training services. Because every operation is different our radio solutions are tailor-made to keep teams in touch at all times, under all conditions.

Contact us to learn more and get in touch with our knowledgeable team.

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]]> https://tunnelradio.com/radiating-cable-the-answer-to-the-confined-space-communications-challenge/feed/ 0 ULTRACOMM® Distributed Antenna System https://tunnelradio.com/ultracomm-distributed-antenna-system/?utm_source=rss&utm_medium=rss&utm_campaign=ultracomm-distributed-antenna-system https://tunnelradio.com/ultracomm-distributed-antenna-system/#respond Wed, 14 Apr 2021 17:58:01 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=563 Our patented ULTRACOMM® Distributed Antenna System has a range of 1,000 feet — more than triple the range of other systems.

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ULTRACOMM® Distributed Antenna System

Unstoppable signals.

Features
Product Sheets

Triple the range of other systems

Tunnel Radio’s leadership in developing underground communication technologies continues with our patented Ultracomm UHF radio system with UHF amplifier that has a range of 1,000 feet — more than triple the range of other systems. Neither confined spaces, sharp corners nor parked equipment stops Ultracomm’s signal, ensuring continuous underground connectivity.

Distributed Antenna System from Tunnel Radio

Features

  • Latest technology multi-channel amplifiers
  • Advanced radiating coax (leaky feeder) coverage
  • Automatic Gain Control (AGC)
  • External LED status of RF power
  • Fault monitoring system
  • Distributed antenna-compatible
  • Voice Alert™ Stat-Alert™ compatible
  • Compatible with TRCentral tracking and tagging system
  • Agile – interoperable with competitive systems

Benefits

  • Provides complete and reliable system radio coverage
  • Dependable coverage in the entire target area
  • Increased safety and productivity
  • MSHA-, West Virginia- and Pennsylvania-approved radio network
  • Safe, MSHA-approved underground power supply – capable of a 24-hour battery back-up.
  • Automatic Gain Control can save man-hours and money in maintenance and production costs
  • Tunnel Radio products are backed by the nation’s most comprehensive service network.

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Mining Amplifier Datasheet
ULTRACOMM® System Manual
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/ultracomm-distributed-antenna-system/feed/ 0 Temporary Communications (TempComm) https://tunnelradio.com/temporary-communications/?utm_source=rss&utm_medium=rss&utm_campaign=temporary-communications https://tunnelradio.com/temporary-communications/#respond Tue, 13 Apr 2021 19:24:20 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=1133 For customers with relatively short term needs for advanced radio coverage in confined spaces, such as water tunnel inspections, our TempComm solution can be customized to your job and budget.

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Temporary Communications

Reliable Communications

Features
Product Sheets

The leader in underground communications

Tunnel Radio’s leadership in developing underground communication technologies continues with our patented Ultracomm UHF radio system with UHF amplifier that has a range of 1,000 feet — more than triple the range of other systems. Neither confined spaces, sharp corners nor parked equipment stops Ultracomm’s signal, ensuring continuous underground connectivity.

Temporary Communications (TempComms) from Tunnel Radio

Features

  • Latest technology multi-channel amplifiers
  • Automatic Gain Control (AGC)
  • External LED status of RF power
  • Fault monitoring system
  • Distributed antenna-compatible
  • Voice Alert™ Stat-Alert™ compatible
  • Compatible with TRCentral tracking and tagging system
  • Agile – interoperable with competitive systems

Benefits

  • Provides complete and reliable system radio coverage
  • Increased safety and productivity
  • MSHA-, West Virginia- and Pennsylvania-approved radio network
  • Safe, MSHA-approved underground power supply – capable of a 24-hour battery back-up.
  • Automatic Gain Control can save man-hours and money in maintenance and production costs
  • Tunnel Radio products are backed by the nation’s most comprehensive service network.

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
TempComm Portable Radio System Brochure
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/temporary-communications/feed/ 0 Tunnel Voice https://tunnelradio.com/tunnel-voice/?utm_source=rss&utm_medium=rss&utm_campaign=tunnel-voice https://tunnelradio.com/tunnel-voice/#respond Mon, 12 Apr 2021 17:56:14 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=557 Unbroken simplex or duplex operation through the longest tunnels and most remote passes. All within the AAR 160 MHz band. Plus, Tunnel Voice is compatible with digital narrow band.

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Tunnel Voice

Voice Communications. Radio Ready.

Features
Product Sheets

Unbroken simplex or duplex operation

Railroads depend on continuous communication among dispatchers, trains, and maintenance crews for safe, productive operations. Tunnel Voice offers unbroken simplex or duplex operation through the longest tunnels and most remote passes. All within the AAR 160 MHz band. Plus, Tunnel Voice is compatible with digital narrow band.

Tunnel Voice™ FD4 from Tunnel Radio

Features

  • Digital narrow-band compatible (standard)
  • Rugged components designed to withstand the harshest environments
  • Multi-channel, simplex or half-duplex capable
  • 150-170 MHz (includes all AAR channels)

Benefits

  • Virtually eliminates dead spots
  • Extended out-of-tunnel coverage
  • Continuous voice communication—regardless of length

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Tunnel Voice Brochure

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/tunnel-voice/feed/ 0 TRCentral RFID Tracking https://tunnelradio.com/mineax-rfid-tracking/?utm_source=rss&utm_medium=rss&utm_campaign=mineax-rfid-tracking https://tunnelradio.com/mineax-rfid-tracking/#respond Sun, 11 Apr 2021 16:53:36 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=524 If you use LAN, our Ethernet Readers give you the features of Tunnel Radio’s powerful RFID system without a distributed antenna system.

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TRCentral

Plug & Play wireless tracking

Features
Product Sheets

Complete wireless deployment

Tunnel Radio’s MSHA-Approved MultiHop Mesh adaptation for TRCentral RFID Tracking System allows a completely wireless deployment of personnel and asset tracking wherever you need it.

With MultiHop radio technology, any TRCentral tracking RFID reader can be configured to form a true wireless mesh network. Particularly useful for areas distant from the distributed antenna system or areas that are rapidly changing. In certain applications, the MultiHop Readers can create independent wireless communications apart from distributed antenna communications.

Ethernet Tracking with RFID Tracking

Leaky Feeder Tracking

  • Exceptional compatibility with all major VHF/UHF distributed antenna radio systems
  • Web-based monitoring software keeps you up to speed on your operation
  • Remote support is made easily and instantly accessible by the monitoring software
  • Quick Install. We can have your new tracking system up and running in under an hour.

Ethernet Tracking

  • If your operation uses a Local Area Network (LAN), our Ethernet Readers give you the features of Tunnel Radio’s powerful RFID system without a distributed antenna system. Plug the Readers into any available LAN port, distribute RFID tags and start monitoring your assets.
  • Combined with state-of-the-art Ethernet Readers, our comprehensive tracking software (installed on your network computers) gives you the information you need to make timely decisions for your operation — from anywhere on the LAN.

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
TR Tracking on Varis Amp
T2 Tracking Tag
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/mineax-rfid-tracking/feed/ 0 Positive Train Control (PTC) 220MHz System https://tunnelradio.com/positive-train-control-system/?utm_source=rss&utm_medium=rss&utm_campaign=positive-train-control-system https://tunnelradio.com/positive-train-control-system/#respond Sat, 10 Apr 2021 17:49:41 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=542 Extend the 220 MHz signal through any length of tunnel or mountain pass, meaning you never lose sight — or control — of your trains.

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Positive Train Control (PTC) 220MHz System

Tunnel Link™ for Non-stop Safety

Features
Product Sheets

Staying connected is everything on a railroad

Tunnel Link™ for Positive Train Control extends the 220 MHz signal through any length of tunnel or mountain pass, meaning you never lose sight — or control — of your trains. This network of amplifiers and distributed antenna cable eliminates dead spots and increases radio signal ranges, ensuring essential rail communications are uninterrupted over the long haul.

Positive Train Control (PTC) from Tunnel Radio

Features

  • Continuous data communication—regardless of length
  • Advanced amplifier technology
  • Rugged components designed to withstand the harshest rail environments
  • External LEDs on the equipment provide easy monitoring
  • Works with TMS, our tunnel monitoring diagnostic system
  • Used by all major railways throughout North and South America

Benefits

  • Virtually eliminates dead spots
  • Extends radio signals for 220 MHz Positive Train Control
  • Requires only one repeater per system

Brochures & Product Sheets

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam feugiat lectus nisi, vitae aliquet est mattis at. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; In finibus eget ante quis pretium.
Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Tunnel Voice Brochure

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/positive-train-control-system/feed/ 0 Distributed Power Railroad Communication https://tunnelradio.com/distributed-power-railroad-communication/?utm_source=rss&utm_medium=rss&utm_campaign=distributed-power-railroad-communication https://tunnelradio.com/distributed-power-railroad-communication/#comments Sat, 10 Apr 2021 08:16:37 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=1 Our network of amplifiers and distributed antenna cable extends the distributed power and end-of-train/head-of-train radio signals, keeping your systems connected from portal to portal.

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Distributed-Power

Ensure train safety and efficiency

Features
Product Sheets

Front-to-back coverage that won't quit

Seamless railroad communications provided by Tunnel Link™ helps ensure train safety and efficiency in tunnels and mountain passes. Our network of amplifiers and distributed antenna cable extends the distributed power and end-of-train/head-of-train radio signals, keeping your systems connected from portal to portal.

Distributed Power Communication Systems from Tunnel Radio

Features

  • Continuous data communication—regardless of length
  • Advanced amplifier technology
  • Rugged components designed to withstand the harsh rail environment
  • Requires only one repeater per system
  • External LEDs on the equipment provide easy monitoring
  • Used by all major railways throughout North and South America

Benefits

  • Extends radio signals for GE LOCOTROL® Distributed Power
  • Extends radio signals for UHF EOT/HOT
  • Virtually eliminates dead spots
  • Works with TMS, our tunnel monitoring diagnostic system

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Distributed Power Tunnel Systems

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/distributed-power-railroad-communication/feed/ 1 System Monitoring & Diagnostics https://tunnelradio.com/system-monitoring-diagnostics/?utm_source=rss&utm_medium=rss&utm_campaign=system-monitoring-diagnostics https://tunnelradio.com/system-monitoring-diagnostics/#respond Thu, 08 Apr 2021 17:51:48 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=547 TMS (Tunnel Monitoring System) relays network data to the server in a user-friendly format, so system health and status are easy to track from anywhere, any time.

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System Monitoring & Diagnostics

Data access made easier

Features
Product Sheets

Full integration

Tunnel Radio’s Tunnel Monitoring System (TMS) software is designed for integration in all of our amplifier and tracking products. TMS relays network data to the server in a user-friendly format, so system health and status are easy to track from anywhere, any time.

TRCentral Remote Monitoring System from Tunnel Radio

Important operational statistics

  • System Status – (Ok) or (Fault condition)
  • Amplifier voltage & RF power levels
  • RSSI (Received Signal Strength Indicator) level – Uplink and Downlink
  • Control Input/Output status
  • Personnel and asset profiles
  • Low battery alert for readers and tags
  • Data displayed in detailed report, graphs and map overlay views
  • Environmental conditions: humidity, temperature and barometric pressure

Benefits

  • Provides complete and reliable system radio coverage
  • Increased safety and productivity
  • MSHA-, West Virginia- and Pennsylvania-approved radio network
  • Safe, MSHA-approved underground power supply – capable of a 24-hour battery back-up.
  • Automatic Gain Control can save man-hours and money in maintenance and production costs
  • Tunnel Radio products are backed by the nation’s most comprehensive service network.

Brochures & Product Sheets

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam feugiat lectus nisi, vitae aliquet est mattis at. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; In finibus eget ante quis pretium.
Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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]]> https://tunnelradio.com/system-monitoring-diagnostics/feed/ 0 TRCentral Remote Monitoring System https://tunnelradio.com/trcentral-remote-monitoring-system/?utm_source=rss&utm_medium=rss&utm_campaign=trcentral-remote-monitoring-system https://tunnelradio.com/trcentral-remote-monitoring-system/#respond Wed, 07 Apr 2021 17:54:18 +0000 http://tunnelradio.clarkfivedesign.opalstacked.com/?p=552 TRCentral makes data on system performance, troubleshooting, and other information easily accessible through local networks or online remotely.

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TRCentral Remote Monitoring System

Intelligent. Accurate. Essential.

Features
Product Sheets

Intelligent networking & fast troubleshooting

Keeping railroads moving and safe demands intelligent networking and fast troubleshooting. Tunnel Radio’s TRCentral answers this need.

Using fast, wireless technology, TRCentral makes data on system performance, troubleshooting, and other information easily accessible through local networks or online remotely. Configured to install in all Tunnel Link VHF and UHF amplifier products, TRCentral is adaptable to any competitive distributed antenna system.

TRCentral Remote Monitoring System from Tunnel Radio

TMS

  • Easily configured and programmable for UHF, VHF and 220 PTC™ operations – all on the same board
  • Head unit automatically scans network and retrieves data, displaying critical information regarding amplifier voltages and power levels
  • Intelligent system knows how many devices are on the network
  • Unresponsive or missing devices are reported to the head end and IP network if available
  • Helps precisely identify the network area with a performance issue, reducing troubleshoot and repair time
  • Instant viewing/polling of specific locations
  • Option ports – serial, TTL, logic and I/O drivers
  • Channel agility also allows operation on any distributed antenna system, VHF or UHF

TRC-NET

  • Allows for remote (IP) monitoring and control of the network, while providing the same information that is displayed on the head end unit
  • Allows the user to initiate a no-wait manual system scan
  • User can generate a summary report on the status of all monitored devices

Brochures & Product Sheets

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Travis Clark, Web Designer at Clark Five Design
Person Name Client Title
Tunnel Radio Products Brochure
Tunnel Radio Products Brochure (Spanish)

Interested?

Whatever you decide to do next, you’ll be impressed with our approach to assessing your needs and our on-target, cost-efficient recommendations. We guarantee it.

(541) 758-5637
Contact Us

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