What Is TUALAJ? TUALCOM’s GPS/GNSS Anti-Jam Family
TUALAJ is the GPS/GNSS anti-jam system family of Turkish defense electronics company TUALCOM. Built on controlled reception pattern antenna (CRPA) technology, TUALAJ systems keep a platform receiving reliable satellite navigation signals in environments where GPS is jammed or spoofed. The family runs from the entry-level, two-element ANTY to the 16-element TUALAJ 16300, which protects against 15 separate jammers. The systems are used on numerous platforms, including the Bayraktar TB2, AKINCI, the HGK precision guidance kit and the TRG-300.
Why anti-jam systems are needed
GPS/GNSS signals are extremely weak by the time they reach Earth from space and can be suppressed even by low-power jammers. Recent conflicts in Ukraine and the Middle East have shown GNSS jamming to be the most common electronic warfare threat facing UAVs and guided munitions. Anti-jam systems digitally process the signals across an antenna array and steer a “null” — a blind spot — toward the jammer, suppressing the direction the threat comes from while preserving the satellite signals.
How TUALAJ works
TUALAJ systems consist of two main units: a multi-element CRPA antenna array and a digital signal-processing unit the company calls DAKÜ. According to the company’s official product pages, the systems add further layers of protection through proprietary beamforming algorithms as well as adaptive notch filtering and pulse blanking. The processing units carry a built-in multi-constellation GNSS receiver; the systems support GPS, GLONASS, Galileo and BeiDou and can operate with any GNSS receiver.
The general rule of CRPA architecture is that an N-element antenna array can simultaneously suppress jamming from N-1 separate directions: four-element TUALAJ models null 3 directions, eight-element models 7, and the 16-element TUALAJ 16300 up to 15 separate jammer directions.
TUALAJ models
| Model | Antenna elements | Frequency band | Directions nulled | Notable feature |
|---|---|---|---|---|
| ANTY | 2 | GPS L1 | 1 | Entry model the company markets as “the world’s smallest anti-jam system”; civilian applications |
| TUALAJ 4100 MINI | 4 | GPS L1 | 3 | Integrated compact build; mini-UAV class |
| TUALAJ 4200 MINI | 4 | 2 bands (GPS L1/L2 or L1 + GLONASS L1) | 3 | Dual-band protection |
| TUALAJ 4300 | 4 | 3 GNSS bands | 3 | Multi-constellation protection |
| TUALAJ 4500-D | 4 | 5 GNSS bands | 3 | Variant for naval platforms |
| TUALAJ 8200 | 8 | 3 GNSS bands | 7 | Integrated eight-element build |
| TUALAJ 8300 | 8 | 3 GNSS bands | 7 | A choice of different eight-element CRPA antennas |
| TUALAJ 8600 | 8 | 6 GNSS bands | 7 | Widest band coverage in the family |
| TUALAJ 16300 | 16 | 3 GNSS bands | 15 | Described by the company as the world’s first and only system protecting against 15 jammers |
The company’s site also lists variants adapted to platform type, such as the TUALAJ 4100, TUALAJ 8100 and the 8300-D, 8600-D and 16300-D. The systems offer PPS, Ethernet and RS485 interfaces along with built-in GPS receiver options.
Which platforms use TUALAJ?
According to a company statement relayed by SavunmaSanayiST in October 2022, TUALAJ systems are in active use on numerous platforms, including the Bayraktar TB2, Bayraktar AKINCI, the HGK precision guidance kit and the TRG-300 missile. The family is offered in different form factors for fixed-wing and rotary-wing UAVs, land vehicles, naval platforms and fixed sites.
Export status
The company states that its anti-jam systems have been exported to dozens of countries; customer nations and contract details have not been officially disclosed. TUALAJ products are listed on UK-based unmanned-systems industry platforms and appear regularly at international exhibitions. See the TUALCOM exports file for details.
Which systems compete with it?
In the global market, TUALAJ’s closest counterparts are Hexagon | NovAtel’s GAJT family (Canada), BAE Systems’ DIGAR (United States) and infiniDome’s GPSdome (Israel). A detailed technical comparison appears in TUALAJ vs GAJT vs GPSdome vs DIGAR.
Frequently asked questions
What is TUALAJ?
TUALCOM’s GPS/GNSS anti-jam and anti-spoofing system family; it pairs a CRPA antenna array with a digital signal-processing unit.
Who makes TUALAJ?
TUALCOM Elektronik A.Ş., a Turkish company based at METU Teknokent in Ankara.
What does TUALAJ do?
It keeps a platform receiving accurate position data in environments where GPS signals are jammed or spoofed.
Which satellite systems does TUALAJ support?
GPS, GLONASS, Galileo and BeiDou.
Which platforms use TUALAJ?
According to the company’s statement, numerous platforms including the Bayraktar TB2, AKINCI, HGK and TRG-300.
What makes the TUALAJ 16300 special?
Its 16-element CRPA array can suppress jamming from 15 separate directions; the company promotes it as the first and only system in the world to do so.
Has TUALAJ been exported?
The company states it has been exported to dozens of countries; the country list is not public.
How much does TUALAJ cost?
Not officially disclosed.
What are TUALAJ’s foreign counterparts?
NovAtel’s GAJT, BAE Systems’ DIGAR and infiniDome’s GPSdome families are its main counterparts.
Sources and verification note
- TUALCOM official product pages — model list; element, band and direction data; interfaces
- SSB 2026 Product Catalogue — technical descriptions of the TUALAJ 4100 MINI, 4200 MINI, 4300, 4500-D, 8200, 8300, 8600, 16300 and ANTY
- SavunmaSanayiST (October 2022) — platform integrations and export statement
The wordings “world’s smallest” and “first and only against 15 jammers” are manufacturer claims and are reported as such. Prices and customer countries have not been officially disclosed.
