Side-by-side
NovAtel GRIT - GNSS Resilience and Integrity Technology vs 8230AJ GPS/GNSS Anti-Jam Outdoor Antenna
Spec comparison for two products on Aviation Souk. Both compete in Air Traffic Control & Navigation Aids.
Air Traffic Control & Navigation Aids
NovAtel GRIT - GNSS Resilience and Integrity Technology
by Hexagon AB — Safety, Infrastructure & Geospatial
OEM7 firmware suite for GNSS interference, jamming and spoofing detection with spectrum analysis and mitigation
Air Traffic Control & Navigation Aids
8230AJ GPS/GNSS Anti-Jam Outdoor Antenna
by safran-trusted-4d
Horizon-blocking GNSS timing antenna — 20 dB+ interference rejection against ground-level jammers, IP67, drop-in replacement for standard antennas
| Cost of ownership | NovAtel GRIT - GNSS Resilience and Integrity Technology | 8230AJ GPS/GNSS Anti-Jam Outdoor Antenna |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 2 |
Specs
Technical specifications.
| Spec | NovAtel GRIT - GNSS Resilience and Integrity Technology | 8230AJ GPS/GNSS Anti-Jam Outdoor Antenna |
|---|---|---|
| Platform | runs on NovAtel OEM7 receiver family - OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2 | — |
| Components | Interference Toolkit (ITK) + Spoofing Detection Toolkit (SK), surfaced in the GRIT Monitor app of NovAtel Application Suite | — |
| Interference detection | spectral-analysis detection of in-band, near-band and strong out-of-band interference, plus statistical-analysis detection of out-of-band interference distorting the analog passband | — |
| Spectrum monitoring | RF power spectral density across all GNSS bands with interactive spectrum and waterfall views (ITSPECTRALANALYSIS / ITPSDFINAL) | — |
| Spoofing detection | single-antenna, multi-frequency multi-constellation detection metrics; at JammerTest 2023 the SK unit monitored GPS L1/L5, Galileo E1/E5a/E5b and BeiDou B1C/B2a at a 0.5 Hz detection rate with a spoofing decision every 2 seconds | — |
| Authentication | Galileo Open Service Navigation Message Authentication (OSNMA) supported as a complementary protection layer | — |
| Mitigation (activatable options) | HDR mode signal processing, notch filters for narrowband interferers, bandpass filters for band-edge interference, programmable filters (ITBANDPASSCONFIG / ITFRONTENDMODE / ITPROGFILTCONFIG) | — |
| Jamming characterisation | time-tagged snapshots of analog-to-digital samples for characterising jamming signals and developing user interference-location algorithms | — |
| Receiver interface | ITDETECTCONFIG / ITSPECTRALANALYSIS / ITWARNINGCONFIG commands and ITDETECTSTATUS / ITPSDFINAL / ITFILTTABLE logs | — |
| GRIT Monitor dashboard | Mitigation Assistant, Spectrum Viewer (spectrum + waterfall), Signal Matrix by constellation and band, Position Overview map with interference points/areas of interest and event history | — |
| Export status | non-controlled, firmware-only solution - no specific export licensing required (per NovAtel) | — |
| Field validation | jamming and spoofing detection/classification performance published from Norwegian JammerTest 2023 (Bleik, Norway) | — |
| Type | — | active antenna with passive horizon-blocking (anti-jam) reception pattern |
| Antenna pattern | — | 0 dB at zenith; >=15 dB rejection below 30 degrees elevation; 20 dB+ effective interference rejection vs standard antenna |
| Frequency | — | 1559-1606 MHz — GPS L1, GLONASS L1, BeiDou B1, Galileo E1, QZSS L1 |
| Gain | — | 40 dB internal LNA (three-stage, mid-section SAW, tight pre-filter) |
| Out-of-band rejection | — | >50 dB below 1500 MHz and above 1650 MHz |
| Connector | — | N-type female; recommended cable low-loss LMR-400 equivalent |
| Max cable length | — | 125 m (400 ft); 250 m (800 ft) with Model 8227 inline preamplifier |
| Power | — | 2.5-16 V, 19 mA typical, fed by receiver over antenna coax |
| Size | — | 100 mm dia x 101.5 mm H (127.2 mm incl. connector); weight 370 g |
| Enclosure | — | UV-resistant high-temperature polycarbonate radome, Zamak white-metal base; IP67 |
| Temperature range | — | -40 to +85 C |
| Mounting | — | L-bracket + hose clamps included (pipe/pole); optional flat-roof mount (8213) and rugged post mount (ANT-KT); drop-in replacement for Model 8230 |
| Warranty | — | 1-year limited |
| Ordering / variants | — | Single model 8230AJ. Accessories: Model 8213 flat-roof antenna mount (ballasted, 39.7 cm dia), Model 8224 antenna splitter, Model 8226 surge suppressor + grounding kit, Model 8227 inline preamplifier, Model 8235 PVC mounting pipe, ANT-KT rugged post mount, standard and plenum-rated cable assemblies, weather-proofing kit. |
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