BNT2504 7-element anti-jamming antenna supports BDS/GPS/GLONASS/GALILEO, blocks 6 jammers, 120dB J/S, 1.5m accuracy, 6-33V, ≤25W.
The BNT2504 7-element anti-jamming antenna is a compact multi-constellation module designed for small UAVs, ground robots, and timing nodes that need reliable satellite signals in contested RF environments. It combines a seven-element antenna array, anti-jamming processor, and a full-band navigation receiver in a Φ220 mm × 29.5 mm housing. Weighing under 1.2 kg, it supports BDS, GPS, GLONASS, and Galileo civil signals on L1/B1/G1/E1 frequencies.
Unlike single-frequency modules, this 7-element anti-jamming antenna covers four global constellations at once: BDS-B1i/B1c, GPS-L1, GLONASS-G1, and Galileo-E1. The internal receiver outputs standard NMEA 0183 sentences, so most flight controllers and timing boards can read position, velocity, and time without custom drivers. For users who prefer RF output, the SMA connector provides combined L1/B1/G1/E1 signals at −60 to −40 dBm. Serial and RF paths are mutually exclusive—pick one during installation.
The array geometry is the core advantage. With seven elements, the BNT2504 can form multiple spatial nulls, suppressing up to six simultaneous jammers. Single-tone jammer-to-signal ratio reaches at least 120 dB. With three interferers, J/S stays above 110 dB, and with six active jammers, it remains above 100 dB. The processor covers narrowband, broadband, pulsed, swept, and Gaussian interference across all supported frequency bands. Continuous-wave tolerance is 10 W minimum, and overvoltage protection guards the supply line.
This 7-element anti-jamming antenna replaces a traditional active antenna or a separate receiver chain. The integrated design removes the need for external low-noise amplifiers and downconverters. A J30J-9ZK connector carries power, TTL serial for firmware upgrades, and the anti-jamming UART. The XT30 power input accepts 6–33 V DC, with 25 W maximum draw. M3 screws secure the light gray housing. USB-TTL adapters should not be hot-plugged, and external RF ports must not feed more than 5 V back into the module.
The module operates from −40 °C to +55 °C and stores from −55 °C to +70 °C. It withstands 96% humidity at 40 °C and meets GJB150A rain exposure requirements. Positioning accuracy is ≤1.5 m horizontal, velocity error ≤0.2 m/s, and timing accuracy ≤100 ns (95%). These figures hold even when multiple jammers are active, making the BNT2504 suitable for critical timing and dynamic navigation.
Power grids, telecom networks, and financial systems rely on GNSS time synchronization. A single jammer can disrupt phase alignment across a region. UAV fleets, unmanned ground vehicles, and unmanned surface vessels use this 7-element anti-jamming antenna to keep navigation stable near interference sources. Convoy defense and high-end logistics also benefit from the six-null suppression capability. If you need clean PNT under stress, the BNT2504 offers a practical path without rack-mount hardware.
For constellation reference, visit GPS modernization, GLONASS interface control, and Galileo service centre.
| TITLE | SIZE |
|---|---|
| BNT2504ZX-En.pdf |
| Parameter | Value | Note |
| Constellation support | BDS B1i/B1c, GPS L1, GLONASS G1, Galileo E1 | Four systems |
| Array elements | 7 | Hexagonal plus center |
| Max simultaneous jammers | 6 | Spatial nulls |
| Single-tone J/S | ≥120 dB | One jammer |
| Three-tone J/S | ≥110 dB | Three jammers |
| Six-tone J/S | ≥100 dB | Six jammers |
| Positioning accuracy | ≤1.5 m horizontal | 95% |
| Velocity accuracy | ≤0.2 m/s | 95% |
| Timing accuracy | ≤100 ns | 95% |
| Input voltage | 6–33 V DC | XT30 |
| Power consumption | ≤25 W | Typical |
| Dimensions | Φ220 mm × 29.5 mm | Cylindrical |
| Weight | ≤1200 g | Module |
| RF output level | −60 to −40 dBm | L1/B1/G1/E1 |
| Operating temperature | −40 °C to +55 °C | Ambient |
