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UPDATE: FAA Schedules Additional Alamogordo, NM GPS Interference Testing

Pilot adjusting GPS on instrument panel of Cessna 421 - FAA Schedules 2017 GPS Interference Testing advisories

3-30-17 – The GPS Interference Testing may lead to unreliable or unavailable GPS signals in the designated area during the testing.

The FAA has posted a flight advisory for additional GPS Interference Testing around the Alamogordo, NM area during the month of April 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Alamogordo, NM Area – April 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 325850N1062202W or the TCS VORTAC 103 degree radial at 49NM.

What times and dates will the testing take place?

  • April 1st – 8th, 2017 – 0530Z – 1230Z
  • April 9th, 2017 – 0500Z – 1230Z
  • April 10th – 17th, 2017 – 0530Z – 1230Z
  • April 18th, 2017 – 0601Z – 1230Z
  • April 19th, 2017 – 0530Z – 1230Z
  • April 20th, 2017 – 0601Z – 1230Z
  • April 22nd, 2017 – 0601Z – 1230Z
  • April 23rd – 24th, 2017 – 0530Z – 1230Z
  • April 26th – 27th, 2017 – 0530Z – 1230Z
  • April 29th – 30th, 2017 – 0530Z – 1230Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (WSMR GPS 17-04) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 538NM RADIUS CENTERED AT 325850N1062202W (TCS 103049) FL400-UNL:
    • 486NM RADIUS AT FL250
    • 415NM RADIUS AT 10000FT
    • 403NM RADIUS AT 4000FT AGL
    • 400NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Alamogordo, NM April 2017 GPS interference testing, with an area map graphic, click here.


UPDATE 3-29-17: FAA Schedules Additional Barstow, CA GPS Interference Testing

The FAA has posted a pair of flight advisories for additional GPS Interference Testing around the Barstow, CA area from April 1 – 10, 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Barstow, CA Area – April 2017 GPS Interference Testing Advisory A

Where’s the testing area?

The location is centered at 352006N1163300W or the HEC VOR 341 degree radial at 33NM.

What times and dates will the testing take place?

  • April 1st, 2017 – 0001Z – 0030Z and 0530Z – 1330Z
  • April 3rd – 5th, 2017 – 0001Z – 0300Z and 0530Z – 1330Z
  • April 7th, 2017 – 0001Z – 0030Z and 0530Z – 1330Z
  • April 8th, 2017 – 0001Z – 0030Z and 0530Z – 1330Z and 2230Z – 2359Z
  • April 9th, 2017 – 0001Z – 0300Z and 0500Z – 1330Z and 2230Z – 2359Z
  • April 10th, 2017 – 0530Z – 1330Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (NTC GPS 17-13A) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 49NM RADIUS CENTERED AT 352006N1163300W (HEC 341033) FL400-UNL:
    • 49NM RADIUS AT FL250
    • 45NM RADIUS AT 10000FT
    • 42NM RADIUS AT 4000FT AGL
    • 50NM RADIUS AT 50FT AGL

Barstow, CA Area – April 2017 GPS Interference Testing Advisory B

Where’s the testing area?

The location is centered at 352006N1163300W or the HEC VOR 341 degree radial at 33NM.

What times and dates will the testing take place?

  • April 1st, 2017 – 0430Z – 0530Z and 1830Z – 2230Z
  • April 3rd – 5th, 2017 – 0300Z – 0530Z and 1830Z – 2230Z
  • April 7th – 8th, 2017 – 0430Z – 0530Z and 1830Z – 2230Z
  • April 9th, 2017 – 0300Z – 0500Z and 1830Z – 2230Z
  • April 10th, 2017 – 0300Z – 0530

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (NTC GPS 17-13B) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 311NM RADIUS CENTERED AT 352006N1163300W (HEC 341033) FL400-UNL
    • 257NM RADIUS AT FL250
    • 190NM RADIUS AT 10000FT
    • 140NM RADIUS AT 4000FT AGL
    • 124NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisories for the Barstow, CA, April 2017 GPS interference testing, with an area map graphic, click here for Advisory A and click here for Advisory B.


UPDATE 3-20-17: FAA Schedules Tomah, Wisconsin GPS Interference Testing

The FAA has posted a flight advisory for GPS Interference Testing around the Tomah, WI area during March 23, 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Tomah, WI Area – March 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 440811N0904308W or the ODI VOR 066 degree radial at 35NM.

What times and dates will the testing take place?

  • March 23rd, 2017 – 1200Z – 2359Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FMWI GPS 17-15) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 15NM RADIUS CENTERED AT 440811N0904308W (ODI 066035) FL400-UNL CHANGING IN AREA WITH ALT DEFINED AS:
    • 16NM RADIUS AT FL250
    • 16NM RADIUS AT 10000FT
    • 16NM RADIUS AT 4000FT AGL
    • 10NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Tomah, WI March 2017 GPS interference testing, with an area map graphic, click here.


UPDATE 3-18-17: FAA Schedules Extensive Coastal San Diego, CA GPS Interference Testing

The FAA has posted a flight advisory advising of GPS Interference Testing around the coastal San Diego, CA area during select dates from March 21 – April 22, 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

San Diego, CA Area – March/April 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 320000N1184500W or the Mission Bay VORTAC (MZB) 227 degree radial at 90NM.

What times and dates will the testing take place?

  • March 21st – 22nd, 2017 – 1830Z – 2230Z
  • April 2nd, 2017 – 1700Z – 2000Z
  • April 6th, 2017 – 1630Z – 2000Z
  • April 12th, 2017 – 1630Z – 1829Z
  • April 15th, 2017 – 1630Z – 1829Z
  • April 18th, 2017 – 0300Z – 0600Z
  • April 22nd, 2017 – 1700Z – 2159Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FACSFACSD GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 464NM RADIUS CENTERED AT 320000N1184500W (MZB 227090) FL400-UNL
    • 409NM RADIUS AT FL250
    • 340NM RADIUS AT 10000FT
    • 317NM RADIUS AT 4000FT AGL
    • 249NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the coastal San Diego, CA March 2017 GPS interference testing, with an area map graphic, click here.


UPDATE 3-17-17: FAA Schedules Mountain Home, ID GPS Interference Testing

The FAA has posted a flight advisory advising of GPS Interference Testing around the Mountain Home, ID area during March 20 – 31, 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Mountain Home, ID Area – March 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 422114N1154618W or the BOI VOR 152 degree radial at 74NM.

What times and dates will the testing take place?

  • March 20th – 31st, 2017 – 0000Z – 0130Z and 1630Z – 2359Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (MHRC GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 167NM RADIUS CENTERED AT 422114N1154618W (BOI 152074) FL400-UNL CHANGING IN AREA WITH ALT DEFINED AS:
    • 167NM RADIUS AT FL250
    • 163NM RADIUS AT 10000FT
    • 160NM RADIUS AT 4000FT AGL
    • 114NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Mountain Home, ID March 2017 GPS interference testing, with an area map graphic, click here.


UPDATE 3-01-17: FAA Schedules More Fort Carson, CO GPS Interference Testing

The FAA has posted another flight advisory advising of GPS Interference Testing around the Fort Carson, CO area during March 3 – 4 2017. The testing will be happening during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Fort Carson, CO Area – March 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 383140N1045445W or the PUB VOR 293 degree radial at 27NM.

What times and dates will the testing take place?

  • March 3rd – 4th, 2017 – 2000Z – 2300Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FCAR GPS 17-07) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 51NM RADIUS CENTERED AT 383140N1045445W (PUB 293027) FL400-UNL CHANGING IN AREA WITH ALT DEFINED AS:
    • 51NM RADIUS AT FL250
    • 48NM RADIUS AT 10000FT
    • 48NM RADIUS AT 4000FT AGL
    • 69NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Fort Carson, CO testing for the month of March 2017, with an area map graphic, click here.


UPDATE 2-27-17: FAA Schedules More Alamogordo, NM GPS Interference Testing

The FAA has posted another flight advisory detailing extensive upcoming GPS Interference Testing around the Alamogordo, NM area during the entire month of March 2017. The testing will be happening in March during the time periods and around the area specified below. During the time that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Alamogordo, NM Area – March 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 325928N1061655W or the TCS VORTAC 099 degree radial at 53NM.

What times and dates will the testing take place?

  • March 1st – 4th, 2017 – 0900Z – 1330Z
  • March 5th – 6th, 2017 – 0630Z – 1330Z
  • March 7th – 11th, 2017 – 0900Z – 1330Z
  • March 12th, 2017 – 0530Z – 1330Z
  • March 13th – 15th, 2017 – 0530Z – 1330Z and 2000Z – 2230Z
  • March 16th, 2017 – 0530Z – 1330Z
  • March 17th – 20th, 2017 – 0530Z – 1330Z and 2000Z – 2230Z
  • March 21st – 22nd, 2017 – 0530Z – 1330Z
  • March 25th – 31st, 2017 – 0530Z – 1330Z and 2000Z – 2230Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (WSMR GPS 17-03) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 542NM RADIUS CENTERED AT 325928N1061655W (TCS 099053) FL400-UNL CHANGING IN AREA WITH DECREASE IN ALT DEFINED AS:
    • 485NM RADIUS AT FL250
    • 412NM RADIUS AT 10000FT
    • 417NM RADIUS AT 4000FT AGL
    • 399NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Alamogordo, NM testing for the month of March 2017, with an area map graphic, click here.


UPDATE 2-24-17: FAA Schedules Additional Las Vegas, NV GPS Interference Testing

The FAA has posted a pair of flight advisories for additional GPS Interference Testing, both centered around the Las Vegas, NV area. The testing will happen during the dates and time periods and around the area specified below. During the period that the testing is taking, the FAA is advising pilots that they may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Las Vegas, NV Area – February 2017 GPS Interference Testing Advisory #1

Where’s the testing area?

The location is centered at 361304N1150307W or the LAS VOR 019 degree radial at 10NM.

What times and dates will the testing take place?

  • February 28th, 2017 – 0330Z – 0859Z
  • March 1st – 4th, 2017 – 0530Z – 0859Z
  • March 7th – 10th, 2017 – 0530Z – 0859Z

As they have in the past, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (NAFB GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADSB) MAY NOT BE AVBL WI A 223NM RADIUS CENTERED AT 361304N1150307W (LAS 019010) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 176NM RADIUS AT FL250
    • 110NM RADIUS AT 10000FT
    • 108NM RADIUS AT 4000FT AGL
    • 104NM RADIUS AT 50FT AGL

Las Vegas, NV Area – February 2017 GPS Interference Testing Advisory #2

Where’s the testing area?

The location is centered at 371934N1154249W or the BTY VOR 043 degree radial at 59NM.

What times and dates will the testing take place?

  • February 28th, 2017 – 0330Z – 0859Z
  • March 1st – 4th, 2017 – 0530Z – 0859Z
  • March 7th – 11th, 2017 – 0530Z – 0859Z

As in the past, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (NTTR GPS 17-03) GPS (INCLUDING WAAS, GBAS, AND ADSB) MAY NOT BE AVBL WI A 447NM RADIUS CENTERED AT 371934N1154249W (BTY 043059) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 383NM RADIUS AT FL250
    • 292NM RADIUS AT 10000FT
    • 269NM RADIUS AT 4000FT AGL
    • 224NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the areas described above during the testing periods, the FAA says you should check the NOTAMs frequently, as they can change with little or no notice. To read the first FAA advisory for the February 2017 Las Vegas, NV testing, with an area map graphic, click here, and for the second February 2017 Las Vegas, NV testing advisory with an area map graphic, click here.


UPDATE 2-14-17: FAA Schedules Additional Barstow, CA GPS Interference Testing

The FAA has posted a flight advisory for additional upcoming GPS Interference Testing around the Barstow, CA, area. The GPS testing will happen over a ten-day period. During the period that the testing is taking place, the FAA has warned that pilots may receive either an unreliable GPS signal or no GPS signal at all. And as the agency has said in their past advisories, pilots should report anomalies “only when ATC assistance is required.

Barstow, CA Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 352006N1163300W or the HEC VOR 339 degree radial at 33NM.

What are the times and dates scheduled for the testing?

  • February 17th, 2017 – 1830Z – 2000Z
  • February 18th, 2017 – 1030Z – 1430Z and 1830Z – 2230Z
  • February 19th – 20th, 2017 – 0300Z – 1430Z and 1830Z – 2230Z
  • February 21st, 2017 – 0300Z – 0400Z and 1030Z – 1430Z
  • February 22nd, 2017 – 0330Z – 0630Z and 1030Z – 1430Z and 1900Z – 2230Z
  • February 23rd, 2017 – 1330Z – 1430Z and 1830Z – 2000Z
  • February 25th – 26th, 2017 – 1330Z – 1430Z and 1830Z – 2000Z

As with their advisories in the past, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (NTC GPS 17-10) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 199NM RADIUS CENTERED AT 352006N1163300W (HEC 339033) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 188NM RADIUS AT FL250
    • 144NM RADIUS AT 10000FT
    • 118NM RADIUS AT 4000FT AGL
    • 089NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Barstow, CA area described above during the upcoming testing period, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the February 2017 Barstow, CA testing, with an area map graphic, click here.


UPDATE 2-10-17: FAA Schedules Alamogordo, NM, Fort Riley, KA, and Sierra Vista, AZ GPS Interference Testing

The FAA has posted three more flight advisories for additional GPS Interference Testing around the Alamogordo, NM area, the Fort Riley, KA, area, and the Sierra Vista, AZ, area. The testing will take place during the dates and time periods and around the area specified below. During the period that the testing is happening, the FAA says that pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Alamogordo, NM Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 325928N1061654W or the TCS VORTAC 099 degree radial at 53NM.

What times and dates will the testing take place?

  • February 13th, 2017 – 0630Z – 1330Z and 2000Z – 2230Z
  • February 14th – 17th, 2017 – 1030Z – 1330Z and 2000Z – 2230Z
  • February 21st, 2017 – 2000Z – 2230Z
  • February 24th – 25th, 2017 – 0630Z – 1030Z and 2000Z – 2230Z
  • February 26th – 27th, 2017 – 0630Z – 1330Z and 2000Z – 2230Z
  • February 28th, 2017 – 0900Z – 1330Z and 2000Z – 2230Z

As they generally do, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (WSMR GPS 17-02) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 542NM RADIUS CENTERED AT 325928N1061654W (TCS 099053) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 485NM RADIUS AT FL250
    • 412NM RADIUS AT 10000FT
    • 417NM RADIUS AT 4000FT AGL
    • 399NM RADIUS AT 50FT AGL

Fort Riley, KA Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 391157N/0964831W or the SLN VOR 061 degree radial at 41NM.

What times and dates will the testing take place?

  • February 13th, 2017 – 1200Z – 2359Z
  • February 14th, 2017 – 0001Z – 2359Z
  • February 15th, 2017 – 0001Z – 2300Z

As with past advisories, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FRLY GPS 17-03) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 035NM RADIUS CENTERED AT 391157N0964831W (SLN 061041) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 035NM RADIUS AT FL250
    • 035NM RADIUS AT 10000FT
    • 032NM RADIUS AT 4000FT AGL
    • 015NM RADIUS AT 50FT AGL

Sierra Vista, AZ Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 314817N1091130W or the SSO VOR 162 degree radial at 28NM.

What times and dates will the testing take place?

  • February 14th – 18th, 2017 – 0530Z – 1030Z
  • February 21st – 23rd, 2017 – 0630Z – 1030Z

As with their other advisories, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (EPG GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADSB) MAY NOT BE AVBL WI A 496NM RADIUS CENTERED AT314817N1091130W (SSO 162028) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 450NM RADIUS AT FL250
    • 381NM RADIUS AT 10000FT
    • 362NM RADIUS AT 4000FT AGL
    • 343NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in any of the three areas detailed above during the testing periods, the FAA says you should check the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the February 2017 Alamogordo, NM testing, with an area map graphic, click here, for the February 2017 Fort Riley, KA testing advisory with an area map graphic, click here, and for the February 2017 Sierra Vista, AZ testing advisory with an area map graphic, click here.


UPDATE 2-9-17: FAA Schedules Fort Polk, LA, and Helena, MT, GPS Interference Testing 

The FAA has posted another pair of flight advisories for additional GPS Interference Testing around the Fort Polk, LA area, and the Helena, MT area. The testing will happen during the dates and time periods and around the area specified below. During the period that the testing is happening, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Fort Polk, LA Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 310535N/0930350W or the AEX VOR 253 degree radial at 31NM.

What times and dates will the testing take place?

  • February 11th, 2017 – 1700Z – 2000Z
  • February 18th, 2017 – 1800Z – 2100Z
  • February 23rd, 2017 – 1930Z – 2200Z
  • February 24th, 2017 – 0800Z – 1100Z

As they have in the past, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FTPK GPS 17-09) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 259NM RADIUS CENTERED AT 310535N0930350W (AEX 253031) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 212NM RADIUS AT FL250
    • 143NM RADIUS AT 10000FT
    • 099NM RADIUS AT 4000FT AGL
    • 043NM RADIUS AT 50FT AGL

Helena, MT Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 461704N/1113539W or the HLN VORTAC 130 degree radial at 24NM.

What times and dates will the testing take place?

  • February 12th, 2017 – 0001Z – 0300Z and 1200Z – 2400Z
  • February 13th, 2017 – 0001Z – 2400Z
  • February 14th, 2017 – 0001Z – 0300Z

As in the past, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (LSMT GPS 17-11) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 043NM RADIUS CENTERED AT 461704N1113539W (HLN 130024) FL400-UNL INCREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 044NM RADIUS AT FL250
    • 044NM RADIUS AT 10000FT
    • 044NM RADIUS AT 4000FT AGL
    • 054NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in either of the two areas above during the testing periods, the FAA says you should check the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the February 2017 Fort Polk, LA testing, with an area map graphic, click here, and for the February 2017 Helena, MT testing advisory with an area map graphic, click here.


UPDATE 2-8-17: FAA Schedules GPS Interference Testing for Fort Carson, CO

The FAA has posted a flight advisory for upcoming GPS Interference Testing around the Fort Carson, CO, area. The GPS testing will happen over a three-day period. During the period that the testing is taking place, the FAA has warned that pilots may receive either an unreliable GPS signal or no GPS signal at all. And as the agency has said in their past advisories, pilots should report anomalies “only when ATC assistance is required.

Fort Carson, CO Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 383545N1045135W or the BRK VOR 198 degree radial at 23NM.

What are the times and dates scheduled for the testing?

  • February 10th, 2017 – 2000Z – 2359Z
  • February 10th, 2017 – 0001Z – 0030Z and 2000Z – 2359Z
  • February 10th, 2017 – 0001Z – 0030Z

As with other advisories, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (FCAR GPS 17-02) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 044NM RADIUS CENTERED AT 383545N1045135W (BRK 198023) FL400-UNL WITH AREA AS DEFINED FOR THE FOLLOWING ALTS:
    • 044NM RADIUS AT FL250
    • 039NM RADIUS AT 10000FT
    • 040NM RADIUS AT 4000FT AGL
    • 048NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Fort Carson, CO area described above in the next few days, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the February 2017 Fort Carson, CO testing, with an area map graphic, click here.


UPDATE 2-6-17: FAA Schedules GPS Interference Testing For IN, NV, SC

The FAA has posted flight advisories for additional GPS Interference Testing around the Seymour, IN; Fallon, NV; and coastal Charleston, SC, areas. The GPS testing for IN and SC are both shorter periods, while the NV testing will run for a little over two weeks. During the periods that the testing is taking place, the FAA has warned that pilots may receive either an unreliable GPS signal or no GPS signal at all. And as the agency has said in their past advisories, pilots should report anomalies “only when ATC assistance is required.

Seymour, IN Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 390300N0853146W or the IIU VOR 007 degree radial at 57NM.

What are the times and dates scheduled for the testing?

  • February 6th – 9th, 2017 – 1300Z – 1600Z

As with other advisories, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (MUTC GPS 17-04) GPS (INCLUDING WAAS, GBAS, AND ADSB) MAY NOT BE AVBL WI A 108NM RADIUS CENTERED AT 390300N0853146W (IIU 007057) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS: 108NM RADIUS AT FL250 108NM RADIUS AT 10000FT 85NM RADIUS AT 4000FT AGL 34NM RADIUS AT 50FT AGL
    • 108NM RADIUS AT FL250
    • 108NM RADIUS AT 10000FT
    • 85NM RADIUS AT 4000FT AGL
    • 34NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Seymour, IN area described above in the next few days, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the February 2017 Seymour, IN testing, with an area map graphic, click here.

Fallon, NV Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 393835N1174702W or the MVA VORTAC 356 degree radial at 66 NM.

What are the times and dates scheduled for the testing?

  • February 7th, 2017 – 1800Z – 1930Z and 2130Z – 2300Z
  • February 13th, 2017 – 1700Z – 1830Z and 2330Z – 2359Z
  • February 14th, 2017 – 0001Z – 0100Z and 1730Z – 1900Z
  • February 15th, 2017 – 0230Z – 0400Z and 1730Z – 1900Z
  • February 16th, 2017 – 1730Z – 1900Z
  • February 21st, 2017 – 0400Z – 0600Z and 1730Z – 1900Z
  • February 22nd, 2017 – 0200Z – 0330Z and 1730Z – 1900Z and 2230Z – 2359Z
  • February 23rd, 2017 – 0000Z – 0030Z and 0530Z – 0630Z

As with other advisories, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (NAWDC GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVAILABLE WITHIN A 396NM RADIUS CENTERED AT 393835N1174702W (MVA 356066) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALTITUDE DEFINED AS:
    • 341NM RADIUS AT FL250
    • 263NM RADIUS AT 10000FT
    • 264NM RADIUS AT 4000FT AGL
    • 246NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Fallon, NV area described above during the next couple of weeks, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the February 2017 Fallon, NV testing, with an area map graphic, click here.

Charleston, SC Area – February 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 321000N0794000W or the Charleston VORTAC (CHS) 166 degree radial at 48NM.

What are the times and dates scheduled for the testing?

  • February 8th, 2017 – 1200Z – 1700Z

As with other advisories, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (CSG4 GPS 17-02) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 294NM RADIUS CENTERED AT 321000N0794000W (CHS 166048) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 248NM RADIUS AT FL250
    • 180NM RADIUS AT 10000FT
    • 134NM RADIUS AT 4000FT AGL
    • 70NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Charleston, SC area described above during the specified time period, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the February 2017 Charleston, SC testing, with an area map graphic, click here.


UPDATE 1-19-17: FAA Schedules More Las Vegas, NV GPS Interference Testing

The FAA has posted another flight advisory for additional GPS Interference Testing around the Las Vegas, NV area. The advisory details some pretty extensive testing times over a wide area, starting in a few days and running through the first half of February. During the period that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. And as they have in their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Las Vegas, NV – January 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 371957N1160221W or the BTY VOR 033 degree radial at 47NM.

What are the times and dates scheduled for the testing?

  • January 22nd – 25th, 2017 – 0300Z – 1430Z
  • January 26th, 2017 – 0530Z – 1430Z
  • January 27th, 2017 – 0530Z – 0800Z
  • January 29th, 2017 – 1830Z – 2230Z
  • January 31st, 2017 – 0300Z – 1430Z
  • February 1st, 2017 – 0300Z – 1430Z
  • February 2nd – 3rd, 2017 – 0530Z – 1430Z
  • February 4th, 2017 – 0530Z – 1430Z and 1830Z – 2230Z
  • February 5th, 2017 – 0300Z – 1430Z and 1830Z – 2230Z
  • February 6th – 7th, 2017 – 0300Z – 1430Z
  • February 9th – 10th, 2017 – 0530Z – 1430Z
  • February 11th, 2017 – 0530Z – 1430Z and 1830Z – 2230Z
  • February 12th, 2017 – 0300Z – 1430Z and 1830Z – 2230Z

As with other advisories, the FAA specifies that the testing may last the entire requested period of time.

NOTAM Information

  • NOTAM INFO: NAV (NTTR GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 535NM RADIUS CENTERED AT 371957N1160221W (BTY 033047) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 488NM RADIUS AT FL250
    • 450NM RADIUS AT 10000FT
    • 403NM RADIUS AT 4000FT AGL
    • 377NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the Las Vegas, NV area described above, during the next few weeks, the FAA says to check the NOTAMs frequently, as details can change with little or no notice. To read the FAA advisory for the January – February 2017 Las Vegas, NV testing, with an area map graphic, click here.


UPDATE 1-16-17: More FAA Coastal GPS Interference Testing near Charleston, SC

The FAA has posted a flight advisory for additional coastal GPS Interference Testing around the Charleston, SC area. The testing will happen during the dates and time periods and around the area specified below. During the period that the testing is taking place, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Charleston, SC – January 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 321715N0794146W or the Charleston VORTAC (CHS) 164 degree radial at 40NM.

What times and dates will the testing take place?

  • January 18th, 2017 – 1700Z – 2200Z
  • January 24th, 2017 – 1200Z – 1700Z
  • January 27th, 2017 – 1300Z – 1800Z

As with other advisories, the FAA specifies that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (CSG4 GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 293NM RADIUS CENTERED AT 321715N0794146W (CHS 164040) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 246NM RADIUS AT FL250
    • 178NM RADIUS AT 10000FT
    • 135NM RADIUS AT 4000FT AGL
    • 72NM RADIUS AT 50FT AGL

Final Details

For pilots planning to fly in the coastal Charleston, SC area described above, the FAA says to check the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the January 2017 Charleston testing, with an area map graphic, click here.


UPDATE 1-11-17: FAA Schedules GPS Interference Testing in Fort Polk, LA Area

The FAA has posted a flight advisory for upcoming GPS Interference Testing around the Fort Polk, LA area during select dates in January 2017. The testing will be happening the dates and time periods and around the area specified below. During the testing period, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Fort Polk, LA – January 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 310535N/0930350W or the AEX VOR 249 degree radial at 31NM.

What times and dates will the testing take place?

  • January 14th, 2017 – 1800Z – 2100Z
  • January 21st, 2017 – 1900Z – 2200Z
  • January 26th, 2017 – 2000Z – 2300Z
  • January 27th, 2017 – 0900Z – 1200Z

As they have specified in the past, the FAA says the testing may last for the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (FTPK GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 259NM RADIUS CENTERED AT 310535N0930350W (AEX 249031) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 212NM RADIUS AT FL250
    • 143NM RADIUS AT 10000FT
    • 99NM RADIUS AT 4000FT AGL
    • 43NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Fort Polk, LA testing for Jan 2017, with an area map graphic, click here.


UPDATE 1-9-17: FAA Schedules GPS Interference Testing For Yuma, AZ Area

The FAA has posted a flight advisory for extensive upcoming GPS Interference Testing around the Yuma, AZ area during the remainder of January 2017. The testing, which has already started, and will be continuing during the dates and time periods and around the area specified below. During the testing period, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Yuma, AZ – January 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 331328N1134850W or the BZA VOR 043 degree radial at 48NM.

What times and dates will the testing take place?

  • January 6th – 15th, 2017 – 2000Z – 2230Z
  • January 16th – 24th, 2017 – 1900Z – 2230Z
  • January 26th – 28th, 2017 – 1900Z – 2230Z

As they have specified in the past, the FAA says the testing may last for the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (YPG GPS 17-02) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 329NM RADIUS CENTERED AT 331328N1134850W (BZA 043048) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 287NM RADIUS AT FL250
    • 216NM RADIUS AT 10000FT
    • 189NM RADIUS AT 4000FT AGL
    • 168NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Yuma, AZ testing for Jan 2017, with an area map graphic, click here.


UPDATE 1-2-17: FAA Schedules More Alamogordo, NM GPS Interference Testing

The FAA has posted a flight advisory for extensive upcoming GPS Interference Testing around the Alamogordo, NM area during the month of January, 2017. The testing will be happening during the date and time period and around the area specified below. During the period of testing, the FAA has said pilots may receive either an unreliable GPS signal or no GPS signal at all. As with their past advisories, the FAA says that pilots should report anomalies “only when ATC assistance is required.

Alamogordo, NM – January 2017 GPS Interference Testing Advisory

Where’s the testing area?

The location is centered at 332525N1062457W or the TCS VORTAC 069 degree radial at 44NM.

What times and dates will the testing take place?

  • January 4th, 2017 – 0300Z – 1330Z
  • January 5th – 7th, 2017 – 0530Z – 1330Z
  • January 10th – 11th, 2017 – 0300Z – 1330Z
  • January 13th – 14th, 2017 – 0530Z – 1330Z
  • January 17th – 18th, 2017 – 0300Z – 1330Z
  • January 19th – 21st, 2017 – 0530Z – 1330Z
  • January 25th, 2017 – 1830Z – 2230Z

As they have in the past, the FAA is saying that the testing may last the entire outlined period of time.

NOTAM Information

  • NOTAM INFO: NAV (WSMR GPS 17-01) GPS (INCLUDING WAAS, GBAS, AND ADS-B) MAY NOT BE AVBL WI A 283NM RADIUS CENTERED AT 332525N1062457W (TCS 069044) FL400-UNL DECREASING IN AREA WITH A DECREASE IN ALT DEFINED AS:
    • 251NM RADIUS AT FL250
    • 176NM RADIUS AT 10000FT
    • 153NM RADIUS AT 4000FT AGL
    • 125NM RADIUS AT 50FT AGL

Final Details

For pilots who are planning to fly in the above area during the testing period, the FAA advises checking the NOTAMs frequently, as they can change with little or no notice. To read the FAA advisory for the Alamogordo, NM testing for Jan 2017, with an area map graphic, click here.

Anders Clark was introduced to aviation a few short years ago, and has developed an interest in aviation history and what the future of aviation will bring. A writer and editor, Anders enjoys researching and sharing the stories of aviation.