GPS May Not Work in the Western US, Because the Air Force's Jamming It
If your GPS navigation system fails you on your road trip west this month, it isn't you — or your Garmin. It's probably the United States Air Force.
Between January 26 and February 16, the USAF will periodically block GPS over a wide swath of the Western states, on dates coinciding with Red Flag 18-1, the military's "premier set of aerial war games."
Exercise Red Flag is an advanced military training series that simulates real-time combat conditions for pilots and weapons systems officers. The USAF has hosted Red Flag every year since 1975. The exercise takes place in a series of multi-week sessions at Nellis Air Force Base just outside of Las Vegas.

GPS has become a crucial part of modern technology, and the blackout is designed to challenge air and weapons personnel to stay familiar with alternative navigational techniques under realistic fighting conditions.
This year's exercise is the largest of its kind in Red Flag's 42-year history, and besides the US Air Force includes airplanes and crews from trusted US allies Australia and the United Kingdom in addition to the United States Marine Corps.
"We're trying a few new and different things with Red Flag 18-1," said Col. Michael Mathes, 414th Combat Training Squadron commander. "It's the largest Red Flag ever with the largest number of participants, highlighting the balance of training efficiency with mission effectiveness."
How will this exercise affect civilians? Flying Mag reports that the GPS blackout will extend to a number of states surrounding the Nevada-based air base, including California, Nevada, Oregon, Wyoming, Arizona, Utah, Colorado, Montana and New Mexico, possibly causing inconsistent GPS access for aircraft and ground vehicles alike.
TPG featured card
at Bilt's secure site
Terms & restrictions apply. See rates & fees.
| 1X | Choose to earn up to 1X points on rent and mortgage payments with no transaction fee |
| 2X | Earn 2X points + the option to earn 4% back in Bilt Cash on everyday purchases |
Pros
- Choice to earn up to 1 Bilt Point per dollar spent on rent and mortgage payments
- Elevated everyday earnings with both Bilt Points and the option to earn Bilt Cash
- $400 Bilt Travel Portal hotel credit per year (up to $200 biannually)
- $200 Bilt Cash annually
- Priority Pass membership
- No foreign transaction fees
Cons
- Moderate annual fee
- Designed primarily for members seeking a premium, all-in-one card
- Earn points on housing with no transaction fee
- Choose to earn 4% back in Bilt Cash on everyday spend. Use Bilt Cash to unlock point earnings on rent and mortgage payments with no transaction fee, up to 1X.
- 2X points on everyday spend
- $400 Bilt Travel Hotel credit. Applied twice a year, as $200 statement credits, for qualifying Bilt Travel Portal hotel bookings.
- $200 Bilt Cash (awarded annually). At the end of each calendar year, any Bilt Cash balance over $100 will expire.
- Welcome bonus (subject to approval): 50,000 Bilt Points + Gold Status after spending $4,000 on everyday purchases in the first 90 days + $300 of Bilt Cash.
- Priority Pass ($469/year value). See Guide to Benefits.
- Bilt Point redemptions include airlines, hotels, future rent and mortgage payments, Lyft rides, statement credits, student loan balances, a down payment on a home, and more.


