Library

Home » Library

Resources and References

Scope of this Library

RNT Foundation is an educational and scientific charity, most concerned with policy decisions that impact navigation and timing resiliency. Much has been written and said on the topic and the field continues to develop rapidly, especially with regard to technologies. Any attempt at a comprehensive library would be foolhardy. That said, if you have or know of documents that you think are important to include in this library, please send us a link or email us the document.

We hope that this library will provide you with convenient access to some of the more important documents in the field and provide assistance if you need to search for others. Please read our disclaimer.

Browse Our Library

Prioritizing Dangers to the United States from Threats to GPS

Prioritizing Dangers to the United States from Threats to GPS (2016)
File: PDF, 396 KB

OPEN

Technologies

While the RNT Foundation efforts are primarily focused on policies that protect GNSS and support resilient systems, supporting technologies are essential. Here are a sample of interesting technologies that could be part of a healthy navigation and timing “ecosystem.” To suggest additional systems, please send us a link or email us a document.


Global Systems

Government-Sponsored GNSS – Information about government-sponsored Global Navigation Satellite Systems (GNSS) is easily obtained from numerous sources. For comprehensive general information on GPS, as well as links to other GNSS sites, we recommend www.GPS.gov. An excellent source for technical information of all kinds is the US Institute of Navigation at www.ion.org.


Satelles – This commercial satellite, subscription-based service is in its early stages of deployment (2018).


Continental Systems

eLoran

Numerous studies in Europe the United States and Asia have assessed eLoran as the best wide-area complement to satellite navigation and timing systems. These documents discuss some of the technical and performance aspects of the system, as well deployment of the systems in NW Europe and in South Korea.


Providing a Resilient Timing and UTC Service Using eLoran in the United States (2016)
Author: Gerard Offermans, Steve Bartlett, Charles Schue, UrsaNav, Inc.
File: PDF, 1.4 MB

OPEN


Loran’s Capability to Mitigate the Impact of a GPS Outage on GPS Position, Navigation, and Time Applications (2004)
Author:  Prepared for the Federal Aviation Administration Vice President for Technical Operations Navigation Services Directorate
File: PDF, 6.7 MB

OPEN


eLoran Initial Operational Capability in the United Kingdom – First results (2015)
Authors: Gerard Offermans, Erik Johannessen, Stephen Bartlett, Charles Schue, and Andrei Grebnev (UrsaNav, Inc.);
Martin Bransby, Paul Williams, and Chris Hargreaves (General Lighthouse Authorities of the UK and Ireland)
File: PDF, 1.1 MB

OPEN


Assessing the Security of a Navigation System: A Case Study using Enhanced Loran – Presentation (2009)
Authors: Sherman Lo, Benjamin Peterson, Per Enge
File: PDF, 206 KB

OPEN


Delivering a National Timescale Using eLoran (2014)
Author: Charles Curry
File: PDF, 206 KB

OPEN


A Miniaturized Loran H Field Antenna for Mobile Devices (2010)
Authors: David De Lorenzo, Sherman Lo, Morris Cohen, Jeff Chang, Urmran Inan, Per Enge.
File: PDF, 206 KB

OPEN


eDLoran, The Next Generation of Differential Loran (2014) Paper
Author: Reelektronika
File: PDF, 206 KB

OPEN


eDLoran, The Next Generation of Differential Loran (2014) Presentation
Author: Reelektronika
File: PDF, 206 KB

OPEN


eLoran Accuracy Technical Measures (2013)
Author: UrsaNav
File: PDF, 206 KB

OPEN


Enhanced Loran: The Best Co-Primary PNT Solution on the Planet (2013)
Author: UrsaNav
File: PDF, 2 MB

OPEN


eLoran in Korea — Current Status and Future Plans (2013)
Authors: Jiwon Seo and Mincheol Kim
File: PDF, 3.7MB

OPEN


Briefing Note: Evolution from Loran-C to eLoran (2010)
Author: Research and Radionavigation Directorate of the
General Lighthouse Authorities of the United Kingdom and Ireland
File: PDF, 563 KB

OPEN


Benefit-Cost Assessment Refresh: The Use of eLORAN to Mitigate GPS Vulnerability for Positioning, Navigation, and Timing Services (2009)
Author: Volpe National Transportation Systems Center
File: PDF, 189 KB

OPEN


An Evaluation of the Effectiveness of Intentional Interference to eLoran (2006)
Authors: David Chadwick and Dr. Taehawan Kim, The MITRE Corporation.
File: PDF, 1 MB

OPEN


Independent Assessment Team (IAT) Summary of Initial Findings on eLoran (2009)
Authors: Dr. Bradford Parkinson (Chair), James Doherty (Executive Director), John Darrah, et al.
File: PDF, 1 MB

OPEN


PTTI Capabilities of the Modernized Loran System (2009)
Authors: Kirk Montgomery and Michael A. Lombardi
File: PDF, 1.3 MB

OPEN


Enhanced Loran (eLoran): Definition Document (2007)
Authors: Dr. Sally Basker (General Lighthouse Authorities of the UK and Ireland), Commander Joseph Chop (US Coast Guard), Colonel J Ron Davis (USAF, Ret.) (Booz Allen Hamilton), et al.
File: PDF, 429 KB

OPEN


Misc eLoran Technology Slides
Author: RNT Foundation
File: PDF, 3 MB

OPEN


A Robust PNT Architecture is Essential to Our Critical Infrastructure (2007)
Author: Mitchell J. Narins
File: PDF, 2.7 MB

OPEN


International Loran Association Archives

www.loran.org


Local Systems

Local Positioning Systems

Local Positioning Systems can operate indoor and outdoor, and are able to work in cooperation with, or independent of, space systems. If they use a part of the frequency spectrum distant from GNSS, they can also provide great local resilience against jamming, spoofing and other interference. Many are able to achieve greater precision than a typical GPS/GNSS receiver.


The UHARS Non-GPS Based Positioning System (NGPBS (2014)
Authors: Angelo Trunzo, Roberto Ramirez,Jason Baldwin
File: PDF, 447 KB

OPEN


Locata Techology Synopsis and Manifesto (2014)
Authors: Nunzio Gambale and David Small
File: PDF, 192 KB

OPEN


Indoor Navigation

The field of indoor navigation is still emerging and new developments are announced weekly. Here are a few of the many interesting ideas.


WPI Precision Personnel Locator: Inverse Synthetic Array Reconciliation Tomography Performance — Paper (2013)
Authors: A. Cavanaugh, M. Lowe, D. Cyganski, and R. J. Duckworth
File: PDF, 692 KB

OPEN


WPI Precision Personnel Locator: Inverse Synthetic Array Reconciliation Tomography Performance — Presentation (2013)
Authors:Andrew Cavanaugh (as presented by); A. Cavanaugh, M. Lowe, D. Cyganski, and R. J. Duckworth (authors)
File: PDF, 1.6 MB

OPEN


Opportunistic Radio SLAM for Indoor Navigation Using Smartphone Sensors (2012)
Authors: R. M. Faragher, C. Sarno, and M. Newman
File: PDF, 3 MB

OPEN


Magnetic Field Aided Indoor Navigation (2009)
Author: William F. Storms, Captain, USAF
File: PDF, 1.4 MB

OPEN


Indoor Positioning System Using Accelerometry and High Accuracy Heading Sensors (2003)
Authors: Jussi Collin, Oleg Mezentsev, and Gérard Lachapelle
File: PDF, 641 KB

OPEN


Autonomous

DARPA Chip Scale Atomic Clock

Responding to the threat of GPS jamming on the battlefield, the Defense Advanced Research Project Agency is developing highly miniaturized inertial navigation systems that would be able to maintain precise timing and navigation in GPS-denied environments. These two documents are also available on the DARPA website and links are provided.


Extreme Miniaturization: Seven Devices, One Chip to Navigate without GPS (2013)
Author: Defense Advanced Research Projects Agency (DARPA)
File: PDF, 182 KB

OPEN


Micro-Technology for Positioning, Navigation and Timing (2013)
Author: Defense Advanced Research Projects Agency (DARPA)
File: PDF, 211 KB

OPEN


Automatic Radar

Automatic Radar Positioning: Backup to GNSS (2014)
Authors: Helmut H. Lanziner C.M., Harvey Russell CD, BSc, MSc, MBA (Russell Technologies Inc.)
File: PDF, 853 KB

OPEN


A Low-cost Solution to GPS Vulnerabilities (2014)
Author: BC Shipping News Magazine, Jane McIvor (President & Editor)
File: PDF, 243 KB

OPEN


Time Over Networks

NPLTime® Brochure (2014)
Author: National Physical Laboratory (United Kingdom)
File: PDF, 107 KB

OPEN


Eliminating GPS Dependency for Real-Time Wide-Area Syncrophasor Applications (2012)
Author: Net Insight AB (Sweden)
File: PDF, 1.1 MB

OPEN


GPS-Free Synchronization of Digital Terrestrial TV and Mobile TV Distribution Networks (2007)
Author: Bengt Hellstrom, Net Insight AB (Sweden)
File: PDF, 371 KB

OPEN


Vulnerability Assessments

Jamming and spoofing satellite navigation and timing systems are widely recognized as substantial economic and security threats. Here is a sample of the many studies that have attempted to describe the importance of navigation and timing systems and/or quantify the risks if they are disrupted.


Smart Grid Use of GPS Time (March 2016)
Authors: Kevin M. Skey, Dr. Michael L. Cohen MITRE Corp.
File: PDF, 2.1MB

OPEN


GPS Critical Infrastructure: Usage/Loss Impacts/Backups/Mitigation (2011)
Authors: James Caverly, DHS Office of Infrastructure Protection
File: PDF, 2MB

OPEN


Vulnerability Assessment of the Transportation Infrastructure Relying on the Global Positioning System (2001)
Author: John A. Volpe National Transportation Systems Center
File: PDF, 450KB

OPEN


Understanding GNSS Availability and How it Impacts Maritime Safety (2011)
Authors: Grant, Williams, Shaw, De Voy & Ward
File: PDF, 2MB

OPEN


Specifications and Testing of GNSS Vulnerabilities (2013)
Authors: Dixon, Smith, Hart, et al
File: PDF, 2MB

OPEN


The Threat of GNSS Jamming – The Risk to an Information Utility (2014)
Authors: Jeff Coffed, Exelis
File: PDF, 2MB

OPEN


Tips and Tricks to Finding GNSS Jammers (2014)
Authors: Darren McCarthy, Rohde & Schwarz; Logan Scott, LS Consulting; Alex Tkatch, Rohde & Schwarz
File: PDF, 2MB

OPEN


GNSS Jammer Observations (2014)
Authors: Darren McCarthy, Rohde & Schwarz; Logan Scott, LS Consulting; Alex Tkatch, Rohde & Schwarz
File: PDF, 1.43MB

OPEN


SENTINEL PROJECT – Report on GNSS Vulnerabilities (2014)
Author: Charles Curry, Chronos Technologies
File: PDF, 2.81MB

OPEN


2014 GNSS Vulnerabilities & Resilient PNT Conference (2014)
Author: Royal Institute of Navigation & National Physical Laboratory
File: PDF, 2MB

OPEN


GPS Spoofing & Implications for Telecoms (2013)
Author: Kyle Wesson, Univ. Texas
File: PDF, 2.81MB

OPEN


GPS Vulnerability in Mobile Networks (2013)
Author: Marc Weiss, NIST
File: PDF, 755KB

OPEN


Extreme Space Weather: Impact on Engineered Systems and Infrastructure (2013)
Author: Royal Academy of Engineering
File: PDF, 2.65 MB

OPEN


The Power Grid’s Vulnerability to GPS Spoofing Attacks (2012)
Authors: University of Texas, D.P. Shepard, T.E. Humphreys, and A.Fansler
File: PDF, 2.65 MB

OPEN


GPS Spoofing and the Financial Sector (2011)
Author: Todd Humphreys, Univ. Texas
File: PDF, 560 KB

OPEN


Jamming and Spoofing – Excerpts from Logan Scott’s Course (2013)
Author: Logan Scott,LS Consulting
File: PDF, 1.8MB

OPEN


The Economic Benefits of Commercial GPS Use in the U.S. and The Costs of Potential Disruption (2011)
Author: Nam D. Pham, Ph.D.
File: PDF, 638 KB

OPEN


Global Navigation Space Systems: Reliance and Vulnerabilities (2011)
Author: The Royal Academy of Engineering
File: PDF, 1 MB

OPEN


National Risk Estimate: Risks to United States Critical Infrastructure from Global Positioning System Disruptions (2011)
Author: Brandon D. Wales (National Protection and Programs Directorate, Department of Homeland Security)
File: PDF, 338 KB

OPEN


GPS Timing and Space Weather (2008)
Author: James Caverly (National Protection and Programs Directorate, Department of Homeland Security)
File: PDF, 338 KB

OPEN


GPS Network Timing Integrity (2010)
Author: Malcolm J. Airst
File: PDF, 515 KB

OPEN


National PNT Advisory Board comments on Jamming the Global Positioning System – A National Security Threat: Recent Events and Potential Cures (2010)
Author: National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board
File: PDF, 387 KB

OPEN


Independent Assessment Team (IAT) Summary of Initial Findings on eLoran (2009)
Authors: Dr. Bradford Parkinson (Chair), James Doherty (Executive Director), John Darrah, et al.
File: PDF, 1 MB

OPEN


Assessing the Spoofing Threat: Development of a Portable GPS Civilian Spoofer (2008)
Authors: Todd E. Humphreys (University of Texas at Austin); Brent M. Ledvina (Virginia Tech); Mark L. Psiaki, Brady W. O’Hanlon, and Paul M. Kintner, Jr. (Cornell University)
File: PDF, 553 KB

OPEN


Global Positioning System Timing Criticality Assessment- Preliminary Performance Results (2008)
Authors: Dr. James Carroll (John A. Volpe National Transportation Systems Center) and Mr. Kirk Montgomery (Symmetricom, Inc.)
File: PDF, 516 KB

OPEN


Results from a GPS Timing Criticality Assessment: Presentation for European Navigation Conference, GNSS (2008)
Authors: Dr. James Carroll (John A. Volpe National Transportation Systems Center)
File: PDF, 1.8 MB

OPEN


GPS Backup For Position, Navigation and Timing: Transition Strategy for Navigation and Surveillance (2006)
Authors: Dr. Robert Lilley, Gary Church, and Michael Harrison
File: PDF, 5.5 MB

OPEN


Global Navigation and Timing Resilience Projects

The importance of resilient navigation and timing services is well recognized. Often this is articulated in national policy documents. In other cases the only evidence is in what the nation or region is doing.


International Maritime Organization (IMO)

As part of its E-Navigation Strategy, the IMO has recognized that “E-navigation systems should be resilient and take into account issues of data validity, plausibility and integrity for the systems to be robust, reliable and dependable. Requirements for redundancy, particularly in relation to position fixing systems, should be considered.”


Strategy for the Development and Implementation of E-Navigation (2009)
Author: Maritime Safety Committee
File: PDF, 293 KB

OPEN


International Assn of Marine Aids to Navigation and Lighthouse Authorities (IALA)

IALA is an international organization that regularly provides advice to IMO on navigation issues. IALA has documented the need for robust and resilient electronic navigation upon many occasions and as part of its on-going e-Navigation efforts. Here is an IALA submission to IMO discussing the issue.


Development of an E-Navigation Strategy (2007)
Author: Maritime Safety Committee
File: PDF, 118 KB

OPEN


United States

The United States has long recognized the need for resilient navigation and timing. In 2004 President Bush formally identified the problem in National Security Presidential Directive 39, and directed acquisition of a backup system. As of October 2013, the US has not taken any action to acquire such a system. For more on U.S. policy efforts to date, visit the US Resilience Policy and Desired Architecture section on this page.


United Kingdom & Ireland

The General Lighthouse Authorities for the United Kingdom and Ireland have determined that a robust terrestrial electronic navigation signal (eLoran) will improve safety and security, while reducing the overall cost of the navigation services they provide. Since these services are funded with fees paid by ships calling at UK and Irish ports, this will also minimize the cost to the users. Note that the GLAs are deploying an eLoran system now to ensure resilient navigation and timing.


The Strategic Case for eLoran (2013)
Author: United Kingdom
File: PDF, 140 KB

OPEN


UK Speeds Ahead With Rollout of eLoran Stations to Backup Vulnerable GPS (2013)
Author: General Lighthouse Authorities of the United Kingdom and Ireland
File: PDF, 321 KB

OPEN


Radio Navigation Plan (2012)
Author: Research and Radionavigation Directorate of the
General Lighthouse Authorities of the United Kingdom and Ireland
File: PDF, 1.8 MB

OPEN


Development of an E-Navigation Strategy Implementation Plan (2011)
Author: United Kingdom
File: PDF, 36 KB

OPEN


Resilient Position, Navigation & Timing (PNT): Summary of Business Case considering options for alternative positioning (2011)
Author: United Kingdom
File: PDF, 90 KB

OPEN


South Korea

These materials from South Korea outline the problems they are facing and what the nation is doing to ensure it has resilient navigation and timing.


Presentation: eLoran in Korea — Current Status and Future Plans (2013)
Authors: Jiwon Seo, Mincheol Kim
File: PDF, 4.4MB

OPEN


Paper: eLoran in Korea – Current Status and Future Plans (2013)

Author: Jiwon Seo, Mincheol Kim
File: PDF, 3.7MB

OPEN


European Union

While we can find no European Union policies for resilient navigation and timing, France, Denmark and the UK formed the “EU eLoran Forum” and developed this paper in 2008. The forum met in Moscow in 2010 with representatives from the Czech Republic, France, UK, Norway and the Russian Federation to discuss the status of eLoran and eChayka (“Chayka” is the Russian loran system) in Europe. No paper was published as a result of this second meeting, but that the meeting occurred was recorded on the website www.internavigation.ru.


eLoran: Securing Positioning, Navigation and Timing for Europe’s Future (2008)
Author: The European eLoran Forum
File: PDF, 488 KB

OPEN


Russia

The UK and Russia have recently announced they are working to develop and harmonize eLoran and eChayka (the Russian equivalent of eLoran) to support safe shipping in the Arctic.


The Northern Sea Route: 22nd FERNS Council Session (2013)
Author: Bolshoy Trekhsviatitelskiy (Joint Stock Company Internavigation Research & Technical Centre of Advanced Navigation Technologies)
File: PDF, 2.5 MB

OPEN


UK and Russia to cooperate on GPS back up (2013)
Author: Edd Gent
File: PDF, 347 KB

OPEN


Russia Hedges Bets on Satellite Navigation (2013)

Author: U.S. Army Foreign Military Studies Office
File: PDF, 786 KB

OPEN


Far East Radio Navigation Service (FERNS)

FERNS is an agreement between the Russian Federation, South Korea, the People’s Republic of China, and Japan to maintain a coordinated Loran system. Japan plans to terminate its Loran system, while South Korea, as mentioned above, is implementing a very robust eLoran system. Russia (also mentioned above) is working with the UK to upgrade its Chayka (Loran) to eChayka, with a special emphasis on navigating in the Arctic. China’s intentions for resilient navigation and timing have not been announced, although it is clear they are maintaining their legacy Loran system. No publicly available documents from FERNS or China could be found. If you know of any, please send us a link or email us the document.


Saudi Arabia

This presentation outline the actions the nation has taken to ensure resilient navigation and timing.


Saudi Arabia Loran/eLoran System
File: PDF, 154 KB

OPEN


The Saudi Positioning System & Measurement Results (2005)
Authors: Arthur Helwig and Gerard Offermans (Reelektronika); Brian Goodsir (Saudi Ports Authority)
File: PDF, 1.4 MB

OPEN


Iran

The Islamic Republic of Iran has announced it has a terrestrial positioning system, but few details are available, other than it using high power transmitters and being different from GPS. From that description, and because Saudi Arabia to the southwest and Russia to the north have Loran/eLoran, and India to the east will be building eLoran, it would be reasonable to conclude it is some variation of Loran that may work cooperatively with neighboring systems. We will post more information as it becomes available. If you know of any more information, please send us a link or email us the document.


Iranian Defense Ministry Unveils New Land-Based Positioning System (2013)
Author: Fars News Agency
File: PDF, 568 KB

OPEN


India

India has resolved to establish a “terrestrial system to support national sovereignty.” The project is funded in their five year plan and is in the pre-tender stage. Here is a graphic depiction of the proposed system.


India Planned eLoran System
File: PDF, 136 KB

OPEN


Maritime Agenda: 2010 – 2020 (2011)
Author: Government of India
File: PDF, 207 KB

OPEN


US Resilience Policy and Desired Architecture

In 2004, the President of the United States directed that a “back-up” system for GPS be acquired. In 2008 the US Department of Homeland Security announced that it would modernize the US Loran system to provide the back-up, but has yet to complete that process. This timeline provides some of the key events between 2004 and today.


Radionavigation Systems: A Capabilities Investment Strategy (2004)
Author: Overlook Systems Technologies, Inc.
File: PDF, 709 KB

OPEN


GPS Disruptions: Efforts to Assess Risks to Critical Infrastructure and Coordinate Agency Actions Should Be Enhanced (2013)
Author: US Government Accountability Office
File: PDF, 5.3 MB

OPEN


DHS Press Release Announcing eLoran as GPS Backup
Author: Department of Homeland Security
File: PDF, 264 KB

OPEN


Resilient Navigation & Timing: US Government Policy & Efforts – Summary (2016)
Author: Dana Goward
File: PDF, 264 KB

OPEN


Federal Radionavigation Plan (2010)
Authors: US Department of Defense, US Department of Homeland Security, and US Department of Transportation
File: PDF, 2.8 MB

OPEN


National PNT Advisory Board comments on Jamming the Global Positioning System – A National Security Threat: Recent Events and Potential Cures (2010)
Author: National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board
File: PDF, 387 KB

OPEN


Independent Assessment Team (IAT) Summary of Initial Findings on eLoran (2009)
Authors: Dr. Bradford Parkinson (Chair), James Doherty (Executive Director), John Darrah, et al.
File: PDF, 1 MB

OPEN


National Positioning, Navigation, and Timing Architecture Study (2008)
Authors: Milton Abner (CAPT USN NSSO/PNT, Division Chief), John Anton (CTR NSSO/PNT, Scitor), Mike David (CTR NSSO/PNT, Overlook), et al.
File: PDF, 2.8 MB

OPEN


Presidential Directives


Executive Order 13636—Improving Critical Infrastructure Cybersecurity (2013)
Author: Barack Obama (US President)
File: PDF, 332 KB

OPEN


Presidential Policy Directive 21: Critical
Infrastructure Security and Resilience (2013)

Author: Barack Obama (US President)
File: PDF, 142 KB

OPEN


NSPD-39: U.S. Space-Based Position, Navigation, and Timing Policy (2004)
Author: George W. Bush (US President)
File: PDF, 171 KB

OPEN


Homeland Security Presidential Directive/HSPD-7: Critical Infrastructure Identification, Prioritization, and Protection (2003)
Author: George W. Bush (US President)
File: PDF, 85 KB

OPEN


Resilient PNT Forum II – January 26, 2015

US PNT Advisory Board (PNTAB) Thoughts on Assured PNT (2015)
Author: Professor Brad Parkinson, Stanford University
File: PPTX, 52 KB

OPEN


Resilient PNT in Europe Update (2015)
Author: Martin Bransby, Research and Radionavigation (R&RNAV), General Lighthouse Authorities (GLA) of the United Kingdom and Ireland
File: PPTX, 2 MB

OPEN


Update on the Korean eLoran Program (2015)
Authors: Jiwon Seo, Yonsei University, South Korea and Jong Cheol Lee, Ministry of Oceans and Fisheries, South Korea
File: PDF, 2 MB

OPEN


Resilient PNT in USA Update (2015)
Author: Dana Goward
File: PPTX, 8 MB

OPEN


Space Weather and GNSS (2015)
Author: Joe Kunches, Director, Space Weather Services, ASTRA, Boulder, Colorado
File: PPTX, 117 MB

OPEN

Public Comments to DOT on eLoran Proposal – May 2015

Summary of Public Comments w/ Links to Submissions (2015)
Author: RNT Foundation
File: PDF, 525 KB

OPEN

View the documents RNT submitted to the DOT’s official docket.
Ligado's Application to FCC – RNT Foundation Filings

Three Editorials
Author: RNT Foundation
File: PDF, 838 KB

OPEN


Technical Analyses
Author: RNT Foundation
File: PDF, 183 KB

OPEN

NPEF Gap Analysis Study
Author: NPEF
File: PDF, 899 KB

OPEN


MSV Failure to Disclose
Author: RNT Foundation
File: PDF, 167 KB

OPEN

Pages from USPTO Filing
Author: MSV
File: PDF, 1.37 MB

OPEN

Easily File Comments with the FCC – Step by Step Guide

Step By Step Instructions for Filing Comments
Author: RNT Foundation
File: PDF, 358 KB

OPEN

Template for cover letter/filing for FCC on Ligado Matter
Author: RNT Foundation
File: DOCX, 118 KB

DOWNLOAD


Disclaimer: All the documents in this library not created by RNT Foundation were publicly available on the internet at the time of posting. For cases where the author’s intention to have document made public was not entirely clear, we have obtained their agreement to the posting. RNT Foundation takes no responsibility for the statements of and views expressed in any non-foundation document.