PROUDLY AUSTRALIAN. PURPOSE-BUILT FOR DEFENCE.
Since 1970, ZCG has been a trusted provider of mission-critical RF solutions, beginning with Victoria Police and expanding into defence applications across land, sea, air and space. As one of only six RF suppliers in Australia, and among the few that meet sovereign manufacturing standards, ZCG delivers antennas, filters and communication components built for reliable performance in the harshest conditions.
OUR CAPABILITIES

LAND DOMAIN
Tactical communications, data transfer, and portable systems.

AIR DOMAIN
Cutting-edge solutions for manned and un-manned aircraft/UAVs. Ground-to-air connectivity.

SEA DOMAIN
Durable marine antennas designed for long-wave communications.

SPACE DOMAIN
Space asset tracking/monitoring and ground to satellite connectivity.

WHAT SETS US APART
- Customised antenna solutions for Defence platforms across all domains.
- Proven expertise in RF communication technology, including VHF, UHF, and HF systems.
- In-house Capabilities: design, prototyping, testing, and precision manufacturing.
- In-house Services: coverage predictions, planning and modelling, antenna simulation technology, RF system constancy and digital design, RF safety and risk management, legacy hardware refurbishment.
- Specialised in ruggedised solutions for extreme operational environments.
- Dual-use and cross platform compatibility including legacy hardware

- Adherence to Defence industry standards – MIL-SPEC.
- Rigorous testing to ensure performance in challenging environments.
- Support for Defence Industry Development Strategy/Sovereign Defence – SDIP 6-Integration and enhancement of battlespace awareness and management systems.
- Cross platform and legacy platform compatible.
- On-going support, maintenance and spare parts.

- Trusted by global Defence primes, including Boeing Defence Australia, L3Harris, BAE Systems, Silentium Defence, Cubic Defence and others.
- Partnering with Defence organisations to deliver mission-critical solutions.
- Collaboration with Universities and Government Departments

- ISO Accredited: ISO 9001, 14001 & 4500
- AIDN, ARCIA, VDSN, A.I.G, I.C.N members
- JOSCAR-AU Registered

- Continuous investment in R&D for emerging Defence communication technologies.
- Supporting Australia’s Defence resilience and global competitiveness.
- Ensuring innovation for war fighters and defence platforms


RF DESIGN & PERFORMANCE MODELLING

RESEARCH & DEVELOPMENT

CNC ENGINEERING & PRECISION MACHINING

COMPLETE ON-SITE ANTENNA ASSEMBLY

BESPOKE RF CABLE & COMPONENT INTEGRATION

COMPREHENSIVE RF TESTING & VALIDATION
DEFENCE-FOCUSED ANTENNAS, SOLUTIONS BY APPLICATION

MOUNTED
Mission-Ready RF for Defence Vehicles

DISMOUNTED
Infantry Communication Antennas

UNCREWED
Advanced RF for Autonomous Systems

FIXED BASE
Optimised RF for Strategic Defence Bases

TACTICAL
Rapid-Deploy RF Solutions for Tactical Operations

MESH NETWORK
Reliable Antennas for Mesh-Enabled Defence Communications
LOOKING FOR MISSION-CRITICAL RF SOLUTIONS TAILORED FOR DEFENCE APPLICATIONS? OUR SPECIALISTS ARE READY TO ASSIST WITH CUSTOM ENGINEERING, INTEGRATION, AND SECURE COMMUNICATION TECHNOLOGIES. GET IN TOUCH TODAY.
CONTACT OUR DEFENCE RF SPECIALISTS
Trusted by Defence. Driven by Innovation
Discover how ZCG supports sovereign capability.
TRUSTED BY GLOBAL DEFENCE PRIMES
Here are just some of the global defence primes and business that we have collaborated with.












SOME OF OUR MILITARY SOLUTIONS
CFD30108
Rugged MIL-SPEC VHF detachable collinear and US 4-hole base, 20-120 MHz, BNC female, 2.1 dBi - 3.15m
- Frequency:
20-120 MHz – HF and VHF - Bandwidth:
Full frequency range stated – 100 MHz - Gain:
-4.0 to +2.1 dBi - Tuning:
Factory at maximum 3.5:1 VSWR
CFD20512
Rugged Wideband MIL-SPEC, VHF and UHF dipole antenna, N-type female, 3.12m, military green
- Frequency:
20-512 MHz – VHF and UHF - Bandwidth:
Full frequency range stated – 492 MHz - VSWR:
<3.0:1 - Mounting:
Mast Mount base or optional Heavy-duty mount base with US 4-hole
A-1429
Heavy-duty 316 stainless steel deck/floor mount socket bracket
- Polarisation:
Vertical - Construction:
304 stainless steel welded antenna HD mount tube and base mount plate and components - Connector:
59.6mm inner capacity - Dimensions:
Height: 313mm, Mount plate diameter: 300mm
ZAS-390
Broadband vertically polarised VHF/UHF antenna, 225-400 MHz, 50 Ohms, 500W, N-type female, 2.1dBi - 415mm x 605mm
- Frequency:
225-400 MHz – VHF and UHF - Bandwidth:
Full frequency range stated – 175 MHz - Gain:
2.1 dBi - Tuning:
Factory tuned to <1.8:1 VSWR
B55H-SS
VHF and UHF broadband discone antenna, 304 stainless steel, 50-500 MHz, 100W, N-type female, 0 dBd - 1.4m
- Frequency:
50-500 MHz – VHF and UHF - Bandwidth:
Full frequency range stated – 450 MHz - Gain:
0 dBd – unity - Tuning:
Factory tuned to <2:1, max <3.0:1
HFS30
Broadband HF 3-wire antenna, 3.6-30MHz, 2mm stainless steel wire, 100W, 5dBi - antenna - 27m
- Frequency:
HF 3.6 -30MHz - Bandwidth:
Full frequency range stated - Gain:
5 dBi, -6 dBi at 3.6MHz - Tuning:
Factory – no field tuner required
HFS30-3
HF broadband multiwire antenna 3-wire, 1.6-30MHz, 2:1 VSWR, 2.5kW PEP - 54m
- Frequency:
HF 1.6-30MHz - Bandwidth:
Full frequency range stated - Gain:
5dBi – typical - Tuning:
Factory at <2.5:1 VSWR – no field tune required
LPY30-90AL
VHF log periodic antenna with guyed mast and pivot mount VHF 30-90 MHz
- Frequency:
30-90 MHz – VHF - Bandwidth:
Full frequency range stated – 60 MHz - Gain:
7dBi – nominal - Tuning:
Factory at 2:1 VSWR