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Anti Jam Receiver AJ6-9CMA

Category： APNT Receivers
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Product Description:

High-Precision Anti-Jamming Anti-Spoofing AJ6

Product Features

1.Full GNSS constellation, full GNSS frequency, high-precision positioning.

2.Active cancellation for GNSS jamming, fully analog, low power and low latency.

3.Adaptive narrowband filtering against full-band VCO sweep jamming for agile suppression.

4.Baseband signal timingly analysis, identifying and eliminate GNSS spoofing signals.

5.Multi-element antenna with adaptive beamforming to block interference from below the horizontal plane.

6.5V input. Extremely low power consumption, can be powered directly by the flight controller without extra power supply

Specifications

Size	Available in 32×32 cm, 15×15 cm or 9D cm D sizes.
Weight	<0.80kg, <0.30kg, <0.25kg
Power Consumption	<2w
RF Hardware Channel	780
Output Interface	Uart (5V/GND/TX）
Baud Rate	115200
Data Update Rate	10Hz
GNSS	GPS: L1, L2C, L2PY, L5; GLONASS: L1CA, L3 CDMA; Beidou: B1I, B1C, B2a, B2I; Galileo: E1, E5a, E5b, E6
Max. Supported Speed	600m/s
Cold Start	<40s
Full Band RTK
Positioning Accuracy	<1 m without jamming, 0.5–5 m with jamming.
Anti-jamming and Anti-spoofing Performance (9cm D)	AJ6-9CMC: Single-Jammer: 96dB; Anti-Spoofing: No
Anti-jamming and Anti-spoofing Performance (9cm D)	AJ6-9CMA: Single-Jammer: 112dB; Anti-Spoofing: Yes
Anti-jamming and Anti-spoofing Performance (15cm*15cm)	Single-Jammer：125dB Dual-Jammer：115dB
Anti-jamming and Anti-spoofing Performance (15cm*15cm)	Single-Jammer：138dB Dual-Jammer：120dB

AJ6 15CM Comparison with Multi-Element Adaptive Nulling Receiver CRPA

• Antennas Compared : L1 single frequency four-element nulling antenna CRPA, L1 and L2 dual frequency four-element nulling antenna, and AJ6.

• Measurement Setup:

Since the nulling antennas CRPA have relatively narrow bandwidths that cover only part of the GNSS frequency spectrum, while the AJ6 covers the entire GNSS band, the following setup was used to enable fair comparison of anti-jamming performance within the same frequency range:

When compared with the L1 nulling CRPA antenna, the L2, L5, and other lower-frequency bands of AJ6 were disabled.

When compared with the L1 and L2 nulling CRPA antenna, the other higher-frequency bands of AJ6 were disabled.

Testing Results (15cm*15cm)

Jamming type/ Anti-jamming distance	AJ6 (Lower-band signals disabled)	L1 nulling antenna CRPA
30W Single-Jamm.	<0.5m	20m
>100W Single-Jamm.	<1m	>50m (Test Site constraints)
30W+>100W Dual-Jamm.	10m	>50m (Test Site constraints)
1.5G jamming, frequency range covering 1.540-1.660GHz

Jamming type/ Anti-jamming distance	AJ6 (other frequencies are disabled)	L1 and L2 nulling antenna
100W Single-Jamm.	7m	13m
30W+>100W Dual-Jamm.	50m	>50m (Test Site constraints)
1.5G jamming, frequency range covering 1.540-1.660GHz and 1.2G jamming, frequency range covering 1.168–1.279GHz