
KTEQ GEOSPACE was established in 2015 to address increasing threats to the aviation and transportation industry, telecommunication, police and emergency services, as a result of the growing proliferation of GPS jammers also known as Personal Privacy Devices (PPDs). Often the users of these devices are unaware that the range of jamming effects are much greater than published. KTEQ GEOSPACE specializes in GNSS Spectrum Monitoring services including Radio Frequency Interference (RFI) detection and geolocation services. GNSS RFI training and education services are available on request. KTEQ GEOSPACE is located in Nova Scotia, Canada.
GNSS Spectrum Monitoring
Radio Frequency Interference in the GNSS frequency spectrum can often be the result of an intermittent source requiring extended monitoring of the GNSS spectrum. GNSS is increasingly used as a timing synchronization reference for telecommunication systems. The loss of GPS signals as a result of RFI has resulted in the loss of local telecommunication services in addition to the loss of GPS navigation in the vicinity of the GPS jammer. KTEQ GEOSPACE provides GNSS Spectrum Monitoring services in order to detect, identify and geo-locate the source of RFI effects for a particular location.

GNSS RFI Detection and Geolocation
KTEQ GEOSPACE has developed a rapidly deployable system with optimized GPS RFI detection and geolocation capabilities. The system is primarily used in Atlantic Canada but may be deployed on request elsewhere in Canada depending on the needs of the client.

Canadian Technical Security Conference (CTSC) 2024
KTEQ GEOSPACE provided insights to vulnerabilities to the Canadian national infrastructure including the impact of GPS jamming and spoofing on commercial drones during the recent CTSC 2024 held Apr 23-25, 2024 in Calgary, AB.

Association of Nova Scotia Land Surveyors (ANSLS) October 2024
The latest presentation provided by KTEQ GEOSPACE was a primer on GPS RFI at the White Point Resort during the AGM Meeting of the Association of Nova Scotia Land Surveyors (ANSLS) in Oct 2024. A copy of the presentation is available at the ANSLS link: https://ansls.ca/files/GPS RFI – Ken Johnson.pdf Examples of GPS RFI Emulation of GPS Jammers are provided below.



Links
- Inside GNSS http://www.insidegnss.com/
- GPS World http://gpsworld.com/
- Institute of Navigation http://www.ion.org/
- Institute of Navigation Abstract January 2022 https://www.ion.org/itm/abstracts.cfm?paperID=10736
- Canadian Aeronautics and Space Institute – CASI ASTRO 2022
https://casi.ca/resources/Documents/ASTRO/2022/Presentations/5B-01%20JohnstonKD_GPS_RFI_Emulation_Paper.pdf - Association of Nova Scotia Land Surveyors – GPS RFI Presentation October 2024 https://ansls.ca/files/GPS%20RFI%20-%20Ken%20Johnson.pdf
- US Coast Guard – http://www.navcen.uscg.gov/?pageName=GPS
- NavCanada NOTAMS https://flightplanning.navcanada.ca/cgi-bin/CreePage.pl?Langue=anglais&NoSession=&Page=Fore-obs/notam&TypeDoc=html
- Novatel http://www.novatel.com/products/gnss-receivers/
- GPS Central http://www.gpscentral.ca/
- Signal Hound https://signalhound.com/
- Airspy and SDR# https://airspy.com/
- Anritsu http://www.anritsu.com/en-US
- AGI STK https://www.agi.com/
- Transport Canada Civil Aviation Daily Occurrence Reporting System (CADORS) reports: #2023C0182(13 Jan), #2023Q0628(16 Feb), #2023Q1050(20 Mar), #2023A0244 (23 Mar), #2023A0248 (23 Mar), and #2023C1856 (Apr 23).https://wwwapps.tc.gc.ca/Saf-Sec-Sur/2/cadors-screaq/q.aspx?lang=eng
- Transport Canada, Aviation Safety Letter, 1/2023. “Challenges during localizer performance with vertical guidance (LPV) approach procedures.” https://tc.canada.ca/en/aviation/publications/aviation-safety-letter/issue-1-2023/challenges-during-localizer-performance-vertical-guidance-lpv-approach-procedures
- US Federal Aviation Administration – WAAS Geostationary Satellite Footprint. https://www.nstb.tc.faa.gov/images/GeoFootPrint_Alaska.png
- Solar Cycle 25 – NOAA Space Weather Prediction Center https://www.swpc.noaa.gov/products/solar-cycle-progression
- Porter PD2287 and Air Canada 8121 Flight Data 23 March 2023. https://www.flightradar24.com
- Porter Airlines C-GLQV aircraft photo copyright used with permission from Shajie Hussain. Air Canada Express C-GJZF photo copyright used with permission from Shon Fridman. https://www.jetphotos.com/
- Solar-Terrestrial Centre of Excellence. Severe Geomagnetic Storm Data on 23/24 March. https://www.stce.be/news/638/welcome.html
- NOAA Space Weather Prediction Centre (SWPC), Boulder, Colorado.https://www.swpc.noaa.gov/news/g3-strong-geomagnetic-storming-observed-23-march-2023
- WAAS Performance Analysis Report April 2023 Report #84 Table 1-5, page 19, FAA Satellite Navigation Branch, ANG-E66, NSTB/WAAS T&E Team. https://www.nstb.tc.faa.gov/reports/FAA_WAAS_PAN_Report_84_v1.0.pdf
- Natural Resources Canada – Canadian Active Control Stations – GNSS data March 23, 2023.https://webapp.csrs-scrs.nrcan-rncan.gc.ca/geod/data-donnees/cacs-scca.php?locale=en
- NOAA KP-Index magnetic data for 23 March 2023. https://www.spaceweatherlive.com/en/archive/2023/03/23/kp.html
- Natural Resources Canada, Total Electron Content data from Space Weather Canada. https://spaceweather.gc.ca/index-en.php
- NavCanada GNSS Anomaly Report Form. https://www.navcanada.ca/en/gnss-anomaly-report-form.pdf
- Canadian Technical Security Conference 2024 https://ctsc-canada.com/