4-Element CRPA Antenna for GNSS Anti-Jamming & Anti-Spoofing
Dual protection in a compact package: jamming suppression and spoofing rejection
- Array elements
- 4
- Max jammers
- 3
- Weight
- ≤520 g
The TX2501-AJS-4CH-DPA is a compact integrated dual-protection terminal — anti-jamming and anti-spoofing — for civil UAV and professional users. It supports dual-frequency BeiDou-3 GPS L1, Galileo E1 and BDS B1i reception, wideband jamming suppression against up to 3 jammers, and spoofing rejection with residual spoofing signal CN0 held to ≤20 dB at the output. Antenna array, anti-jamming module and GNSS receiver are integrated in a small, light, low-cost housing.
Interference types suppressed: band-limited Gaussian white noise, spread-spectrum matched-spectrum interference, pulsed, swept-frequency and mixed interference. Suppression coverage: azimuth 0—360°, elevation −90° to +90°.
| Dimensions | 150 × 130 × 22 mm |
|---|---|
| Power | ≤13 W |
| Weight | ≤520 g |
| Frequencies | 1561.098 MHz · 1575.42 MHz |
| Constellations | BDS-B1i · GPS-L1 · GALILEO-E1 |
| RF output | -70 to -60 dBm · 50 Ω |
| Anti-spoofing | Residual spoofing signal CN0 at output: ≤20 dB |
TX2501 CRPA antenna under jamming: fewer satellites, same fix
Jamming test of the TX2501, a 4-element CRPA antenna with anti-spoofing. Before jamming the receiver sees about 30 satellites; with the jammer on, many signals are knocked down, yet latitude and longitude stay valid on screen. An honest look at what an anti-jamming GPS antenna does under real interference.
GPS anti-spoofing test: TX2501 vs a phone
GNSS anti-spoofing demonstration with the TX2501. A spoofer broadcasts fake satellite signals: a phone beside the antenna is dragged out to sea on the map, while the TX2501 keeps its true position. Tested with spoofing signals from 0 to 20 dB.
The plot below is locked to this model's array. Drag a jammer to see where the nulls form and which satellites stay locked.
- Nulls / capacity
- —
- Satellites held
- —
Ask for pricing and lead time
Tell us the platform, the power budget and the interference you expect. We will confirm this model fits, or point you at the one that does. We respond within one business day.