AC6-450 UHF Fiberglass Omni Antenna | 406-512 MHz | 6 dBi | IP66 MIL-STD-810G
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AC6-450

UHF High Gain Fiber Glass Collinear

ModelProduct DescriptionFrequencyGainDownloadPDFEnquiry
AC6-450UHF High Gain Fiber Glass Collinear406–512MHz6 dBi.Download DatasheetDownload ManualPost Enquiry

The AC6-450 is a professional-grade UHF fiberglass omnidirectional collinear antenna designed for the 406–512 MHz frequency range. This model features a center-fed design to provide a true 360 degrees horizontal radiation pattern and is engineered for tactical and fixed-station applications. With an IP66 rating and full MIL-STD-810G environmental hardening, it ensures mission-critical reliability in the most punishing operational environments.

Precision Omnidirectional Coverage

The AC6-450 utilizes vertically stacked, large-diameter brass radiating elements fed in phase to achieve a 6 dBi gain. Its center-fed architecture is a critical design feature that eliminates pattern distortion and ensures a true, circular horizontal footprint. With a balanced 38-degree vertical beam-width, the antenna provides excellent regional coverage, making it suitable for varying terrain where a razor-thin beam might "overshoot" nearby receivers.

Tactical Structural Hardening

Encased in a high-tech ruggedized fiberglass radome with a UV-resistant ABS finish, the antenna is built to withstand extreme mechanical stress. All internal junctions are fully welded to prevent RF inter-modulation (PIM), ensuring signal purity in RF-dense environments. The standard Olive Green military finish provides tactical concealment, making it ideal for defense and secure government infrastructure.

MIL-SPEC Environmental Resilience

This model is fully compliant with MIL-STD-810G standards and carries an IP66 rating for superior protection against dust and high-pressure water jets. It is resistant to salt fog, fungus, driving rain, and extreme thermal stress. Its structural integrity is verified through high-intensity shock and vibration testing, ensuring stable performance in forward operating bases or harsh industrial zones.

 

FeatureSpecificationTactical Benefit
Gain6 dBiBalanced reach for regional omni coverage.
EnvironmentalMIL-STD-810G & IP66Maximum durability in extreme operational theaters.
Vertical Beam38 DegreesWide vertical aperture for varying terrain.
Wind Rating200 Km/HrStays operational in hurricane-force conditions.

 

Detailed Technical Features

  • Optimized Gain: Constant 6 dBi omnidirectional gain for reliable regional signal penetration.
  • Vertical Reach: 38-degree half-power vertical beam-width for balanced short-to-medium range propagation.
  • Stable VSWR: Maintains a VSWR of better than 1.5:1 across its 25 MHz operational window.
  • Power Capacity: Supports continuous RF power handling of up to 250 Watts.
  • Phasing Integrity: Center-fed design ensures a distortion-free, circular horizontal radiation pattern.

Detailed Mechanical Features

  • Radiating Elements: High-grade, large-diameter brass elements stacked for high aperture efficiency.
  • Compact Footprint: Overall length of 1.2 meters (approx. 4 feet) for easy handling and low wind loading.
  • Support Framework: 51 mm O.D. aluminum support pipe with a high-strength 44 mm O.D. radome.
  • Elite Fasteners: Supplied with Stainless Steel mounting hardware for masts up to 51 mm (2 inches).
  • Portability: Lightweight at just 3.5 Kgs, facilitating rapid tactical deployment.

Detailed Environmental Features (MIL-STD-810G)

  • Theater Hardening: Certified against Salt Fog (Method 509.5) and Fungus Resistance (Method 508.6).
  • Ingress Protection: IP66 rated for protection against total dust ingress and heavy seas.
  • Thermal Endurance: Tested for extreme High/Low Temperatures (Methods 500.5 & 502.5).
  • Climate Defense: Advanced sealing for Humidity (507.5) and driving Rain (506.5).
  • Mechanical Rigidity: High resistance to Shock (Method 516.6) and Vibration (Method 514.6).
  • Wind Survival: Rated for hurricane-force winds up to 200 Km/Hr.

Key Advantages

  • Tactical Readiness: Lightweight, ruggedized, and finished in olive green for immediate military or emergency deployment.
  • True 360 Degrees Signal: The center-fed architecture provides a perfectly circular footprint, essential for central network nodes.
  • Maintenance-Free: No field tuning or adjustments required; fully welded internal junctions prevent performance drift over time.

Primary Applications

  • UHF Tactical Communications: Strategic backbone for field headquarters and regional command hubs.
  • Public Safety Networks: Reliable omnidirectional coverage for 450 MHz band emergency services.
  • Mobile Command Posts: Compact size and durability make it ideal for vehicle or trailer-mounted masts.
  • Coastal and Harsh Environments: Specialized salt fog hardening and IP66 rating make it ideal for maritime ports.

     

Design Features : AC6-450 UHF Omni-directional Collinear Antenna is rugged all weather model uses high class brass and aluminum alloy and does not require any field tuning or adjustments. All junctions are fully welded to prevent RF inter-modulation and antenna is completely protected within a high-tech ruggedized ABS radome to ensure survivability in the worst environments. The UV resistant ABS enclosure has excellent transparency for RF signals and enough strength to withstand specified wind loads. The compact size of collinear antenna allows easy handling and shipping.

Constructions: The AC6-450 is a center fed design which eliminates the distortion of the radiation pattern and ensures a true omni-directional horizontal pattern. The special stub matching is used for smooth VSWR and constant gain over the specified frequency band. The collinear antenna consist of large diameter brass radiating elements stacked vertically, fed in phase and enclosed in ABS tube. The antenna termination is enclosed at bottom of the antenna for complete weather protection. The stainless steel mounting hardware is supplied with the antenna.

Electrical Specifications:
Frequency Range406 - 512 MHz.
Gain6 dBi.
Bandwidth25 MHz.
PolarizationVertical
Input Impedance50 Ohms.
Radiation PatternOmni Directional
Beamwidth -3dB.36 (Vertical)
VSWR - Equal To or Better Then1.5 : 1
RF Power Handling Capacity250 Watts.
Input TerminationN-Female


 

Mechanical Specifications:
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Overall Length1.7 Meters
Shipping Length1.8 Meters.
Support Pipe O.D.38 mm
Support Pipe MaterialAluminum
Maximum Mount Pipe Diameter52 mm (2 Inches)
Radome MaterialUV Resistant ABS
Radome Outer Diameter33 mm
Radome Length1550 mm
Gross Weight3 Kgs.


 

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH