Description
The AJU-4065 is the small-footprint four-element CRPA: a 65 x 65 mm sealed unit that combines the array, the anti-jamming processor, a GNSS receiver and the interface connector. Compared with the miniature AJU-4050 it buys roughly 5 dB more single-jammer suppression and 5 dB more on three simultaneous jammers, at a weight of 200 g – usually the right trade for a UAV or a vehicle roof where the antenna can be a little larger.
Key features
- Four-element array, 65 x 65 x 23.7 mm, 200 g.
- Single-jammer J/S >= 100 dB, three-jammer J/S >= 85 dB at -130 dBm.
- Built-in receiver with PVT output and protected RF output for an external receiver.
- Handles broadband, narrowband, pulse, sweep and mixed interference in any direction.
- DC 9-36 V, <= 6 W; RS422 or LVTTL 3.3 V serial.
- IP65, -40 C to +70 C, >= 10 W burn-out protection.
Specifications
| Model | AJU-4065 |
|---|---|
| Type | Small four-element CRPA, integrated navigation anti-jamming unit |
| Channels | 4 |
| Frequencies (default) | BDS B1 / GPS L1 / Galileo E1 (L5 optional) |
| Anti-jamming, 1 jammer | J/S >= 100 dB @ -130 dBm |
| Anti-jamming, 3 jammers | J/S >= 85 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 GGA/GSV/RMC/VTG/ZDA, 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 9-36 V, <= 6 W |
| Interfaces | J30J-9ZK + SMA; RS422 or LVTTL 3.3 V |
| Dimensions | 65 x 65 x 23.7 mm (+/-0.5 mm) |
| Weight | <= 200 g |
| Protection | IP65 |
| Temperature | -40 C to +70 C |
Typical applications
- Fixed-wing and multirotor UAV navigation under GNSS jamming.
- Vehicle and armoured platform positioning and timing.
- Man-portable and backpack systems with a slightly larger antenna allowance.
- Survey and machine-control receivers that need a protected RF feed.
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 | <= 200 g |
| RF output | -55 to -70 dBm, 50 ohm, VSWR <= 2.0 |
Frequently asked questions
What is the AJU-4065?
The AJU-4065 is a CRPA anti-jamming antenna. 65 x 65 x 23.7 mm four-element CRPA with 100 dB single-jammer suppression and built-in GNSS receiver for UAV, vehicle and man-portable use.
What are the key technical specifications of the AJU-4065?
Per the datasheet: Position accuracy — <= 7 m horizontal, <= 9 m vertical (95 %, PDOP <= 4); Weight — <= 200 g; RF output — -55 to -70 dBm, 50 ohm, VSWR <= 2.0.
What environmental conditions is the AJU-4065 rated for?
The AJU-4065 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-4065 used for?
Fixed-wing and multirotor UAV navigation under GNSS jamming. Vehicle and armoured platform positioning and timing. Man-portable and backpack systems with a slightly larger antenna allowance. Survey and machine-control receivers that need a protected RF feed.
What documentation and configuration support is included with the AJU-4065?
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-4065?
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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