Description
The AJU-X300D is the largest and highest-performance antenna in the family: two sixteen-element sub-arrays on a 300 x 300 mm plate, B1 / L1 / E1 plus L5, 110 dB single-jammer and 100 dB seven-jammer suppression. It is specified for fixed sites, large platforms and reference installations where antenna area is available and maximum protection matters more than weight.
Key features
- Dual sixteen-element array, 300 x 300 mm, 27.6 mm bare and 58.6 mm with heat sink.
- B1 / L1 / E1 + L5 two-band coverage as standard.
- Single-jammer J/S >= 110 dB, seven >= 100 dB, fifteen >= 80 dB.
- 2100 g bare, 5230 g with heat sink; <= 70 W; DC 24-36 V.
- J30J-25ZK + SMA; RS422 serial.
- IP65, -40 C to +70 C.
Specifications
| Model | AJU-X300D |
|---|---|
| Type | Dual sixteen-element CRPA, integrated navigation anti-jamming unit |
| Channels | 16 (two sixteen-element sub-arrays) |
| Frequencies (default) | BDS B1 / GPS L1 / Galileo E1 + L5 |
| Anti-jamming, 1 jammer | J/S >= 110 dB @ -130 dBm |
| Anti-jamming, 7 jammers | J/S >= 100 dB @ -130 dBm |
| Anti-jamming, 15 jammers | J/S >= 80 dB @ -130 dBm |
| Jammer types | Broadband, narrowband, pulse, frequency sweep and combinations |
| Spatial coverage | Azimuth 0-360 deg, elevation -10 to +90 deg |
| Built-in receiver | PVT output, NMEA, 5 Hz, 115200 bps |
| Position accuracy | <= 7 m horizontal, <= 9 m vertical (95 %, PDOP <= 4) |
| Velocity accuracy | <= 0.2 m/s (95 %) |
| RF output | -55 to -70 dBm, 50 ohm, VSWR <= 2.0 |
| Burn-out protection | >= 10 W at the antenna port |
| Supply / consumption | DC 24-36 V, <= 70 W |
| Interfaces | J30J-25ZK + SMA; RS422 |
| Dimensions | 300 x 300 x 27.6 mm bare / 300 x 300 x 58.6 mm with heat sink |
| Weight | <= 2100 g bare / <= 5230 g with heat sink |
| Protection | IP65 |
| Temperature | -40 C to +70 C |
Typical applications
- Fixed command posts and reference GNSS stations in high-threat areas.
- Large maritime and ground platforms with a dedicated antenna pad.
- Airport, port and utility timing security.
- System-level anti-jamming trials and acceptance testing.
Integration and supply
Supplied by SeekerGimbal (Wuhan Xinghang Technology) with English datasheet, mechanical drawing and interface definition. Serial level (RS422 or LVTTL), frequency set (adding L5 or G1) and cable length are configured at the factory. Export documentation, spare cables and engineering samples available for programme evaluation.
Technical FAQ and procurement notes
Specification summary
| Position accuracy | <= 7 m horizontal, <= 9 m vertical (95 %, PDOP <= 4) |
|---|---|
| Weight | <= 2100 g bare / <= 5230 g with heat sink |
| RF output | -55 to -70 dBm, 50 ohm, VSWR <= 2.0 |
Frequently asked questions
What is the AJU-X300D?
The AJU-X300D is a CRPA anti-jamming antenna. 300 x 300 mm dual sixteen-element CRPA covering B1/L1/E1 plus L5 with 110 dB single-jammer suppression – the top of the CRPA antenna range.
What are the key technical specifications of the AJU-X300D?
Per the datasheet: Position accuracy — <= 7 m horizontal, <= 9 m vertical (95 %, PDOP <= 4); Weight — <= 2100 g bare / <= 5230 g with heat sink; RF output — -55 to -70 dBm, 50 ohm, VSWR <= 2.0.
What environmental conditions is the AJU-X300D rated for?
The AJU-X300D is sealed to IP65 and rated -40 °C to +70 °C, so it can be mounted on the vehicle or platform exterior without a separate environmental enclosure.
What applications is the AJU-X300D used for?
Fixed command posts and reference GNSS stations in high-threat areas. Large maritime and ground platforms with a dedicated antenna pad. Airport, port and utility timing security. System-level anti-jamming trials and acceptance testing.
What documentation and configuration support is included with the AJU-X300D?
Supplied by SeekerGimbal (Wuhan Xinghang Technology) with English datasheet, mechanical drawing and interface definition. Serial level (RS422 or LVTTL), frequency set (adding L5 or G1) and cable length are configured at the factory. Export documentation, spare cables and engineering samples available for programme evaluation.
How do I request a quotation for the AJU-X300D?
Email sales@seekergimbal.com or use the contact form with your platform, target set and required interface; a specification-matched quotation is returned within 24 hours.
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