LinkedIn iconBluesky iconX iconFacebook icon

USCG Notice – GPS Degradation at High Latitudes 29 July 2016

July 27, 2016

Blog

Written by Editor

(Thanks to Dennis Bryant and his excellent blog for bringing this to our attention)

USCG NAVIGATION CENTER

HIGH HORIZONTAL DILUTION OF PRECISION (HDOP) ADVISORY FOR 29 JULY 2016

Users of the Global Positioning System (GPS) in an area extending to the Northeast from Fort Collinson and Ulukhaktok to the Northeaster tip of Victoria Island in The Beaufort Sea, and in an area of the Antarctic Coast to the Southeast of the South Georgia and South Sandwich Islands may experience short periods of high HDOP/PDOP (HDOP >6) at various times between 291123Z and 291131Z July 2016 due to satellite maintenance (please refer to NANU 2016047, available on our Constellation Status Page).

Read More

What Can YOU Do? How Can YOU Help?

PNT is the quiet backbone of everything but too many leaders still don’t see the risk.

But you do. You understand the systems, the dependencies, the failure chains. That insight is rare — and it’s exactly what your country needs right now. Contact your government leaders and industry decision-makers and tell them resilient PNT isn’t a feature — it’s the foundation everything else depends on.

Start the Conversation

Use our Resilient PNT Key Talking Points to make the case.

Get the Guide

U.S. Advocates

Find your representatives at Congress.gov, then use our email template to reach them in minutes.

When you get a response, let us know. Every conversation strengthens the mission.

More PNT News

US Congress hearing on PNT – June 4th

US Congress hearing on PNT – June 4th

May 30, 2026

Image credit: House Energy and Commerce Committee What's new: A congressional hearing titled Where Are We?: Examining Positioning, Navigation, and Timing Capabilities in the United States. Why it's important:  The hearing is being held by the Communications and...

GPS NOTAMS Not Enough for Safety – Jeremy Bennington at Spirent

GPS NOTAMS Not Enough for Safety – Jeremy Bennington at Spirent

May 28, 2026

Image: Jeremy Bennington What's new: An important opinion piece on LinkedIn by RNTF member Jeremy Bennington at Spirent about intentional GPS disruption and aviation safety. Why it's important: People's lives are at stake. False contacts, bad locations, relying on...

UK Defence Minister’s Aircraft Jammed… Again – BBC

UK Defence Minister’s Aircraft Jammed… Again – BBC

May 27, 2026

Image: GPSJam.org - Jamming in the Baltic the day of the minister's flight What's new: The aircraft carrying another high ranking official experienced jamming in northern Europe. Why it's important: Even though jamming impacts tens of thousands of ordinary people on...

UK maritime navigation leader on chokepoints – PoliticsHome

UK maritime navigation leader on chokepoints – PoliticsHome

May 27, 2026

Image: UK General Lighthouse Authority - 28 days of ship traffic in Dover Strait What's new: An opinion piece from the head of the UK's General Lighthouse Authority which is responsible for maritime aids to navigation and assists government in marine spatial planning....

More Posts →

Get PNT News in Your Inbox

Subscribe