AC-108-512
VHF UHF Aviation Band Omni Antenna
| Model | Product Description | Frequency | Gain | Download | Enquiry | |
|---|---|---|---|---|---|---|
| AC-108-512 | VHF UHF Aviation Band Omni Antenna | 108-512MHz | 2 dBi. |  |  |  |
The AC-108-512 is a high-efficiency, wideband omnidirectional antenna designed to bridge the gap between multiple frequency bands, covering 108–512 MHz. This ruggedized model is engineered to handle the complex requirements of base stations, supporting everything from civilian and military aviation to spectrum monitoring and tactical jamming.
Ultra-Wideband Performance
The AC-108-512 provides a unified solution for the entire VHF/UHF aviation spectrum. By covering 108 MHz to 512 MHz in a single aperture, it eliminates the need for multiple antennas at crowded radio sites. The antenna features advanced skin current suppression, ensuring a smooth VSWR of 2.5:1 and a constant 2.14 dBi gain. Its broad 78-degree vertical beam-width provides reliable hemispherical coverage, essential for maintaining links with aircraft at various altitudes or ground units in uneven terrain.
Professional Construction and Resilience
Designed to survive the worst environmental conditions, the antenna is housed in a high-strength ABS radome. This enclosure protects the internal radiating elements from ice formation, UV radiation, and acid rain. The base hub is manufactured from 6063T6 architectural-grade aluminum alloy, while all mounting hardware and fasteners consist of marine-grade stainless steel. This selection of materials ensures long-term survivability in salt-fog coastal areas and high-heat desert environments without performance degradation.
Operational and Tactical Efficiency
The efficiency of the AC-108-512 is rooted in its "set-and-forget" philosophy. It requires no field tuning or adjustments, making it a true plug-and-play system for rapid-deployment teams. For logistics, the ground radials are removable, allowing the 1.2-meter antenna to be shipped in a compact package. To ensure electrical longevity, the N-Female termination and feed cable are enclosed entirely inside the mounting pipe, protecting the most sensitive RF junction from humidity and moisture.
Detailed Technical Features
- Massive Frequency Agility: Covers civilian and military aviation, plus UHF land mobile bands.
- Stable Radiation Pattern: Center-fed design ensures a true 360-degree horizontal pattern.
- Skin Current Suppression: Minimizes noise and ensures constant gain across the entire bandwidth.
- High Power Density: Supports up to 500 Watts of continuous RF power.
- Direct Matching: Integrated matching technique for stable wideband performance.
Detailed Mechanical Features
- Radome Protection: ABS tube enclosure offers excellent RF transparency and low wind loading.
- Marine-Grade Build: Type 316 stainless steel hardware prevents oxidation in salt-air environments.
- Optimized Mounting: Clamps securely to vertical support pipes up to 52 mm (2 inches).
- Compact Footprint: Weighs only 6 Kgs; ideal for lightweight tactical masts or rooftops.
- Aesthetic Design: Cylindrical profile offers a low visual signature for tactical discretion.
Detailed Environmental Features
- Wind Survival: Rated for speeds up to 180 Km/Hr, ensuring stability during severe storms.
- Thermal Range: Operational in extreme windows from -30°C to +70°C.
- High Humidity Resilience: Certified for 0 to 95% RH, suitable for tropical zones.
- Ice Resistance: The smooth ABS radome surface minimizes the effects of ice formation on electrical operation.
Key Advantages
- Spectrum Consolidation: Replaces separate VHF and UHF antennas, significantly reducing tower weight and wind-load torque.
- Factory-Tuned Reliability: Eliminates the risk of human error in the field; immediate deployment ready.
- Connector Longevity: Internal feed-line protection effectively eliminates "connector rot" in coastal theaters.
Primary Applications
- Military & Civilian ATC: Ground-to-air voice and data links for regional airfields and command centers.
- Spectrum Monitoring & SIGINT: Wideband receive antenna for identifying and locating RF signals.
- Tactical Jamming & EW: Delivering wideband interference to disrupt multiple communication bands.
- Ground-to-Ground Radio Relay: Establishing high-power VHF/UHF networks in diverse geographical areas.
Technical Summary
| Feature | Specification | Tactical Benefit |
|---|---|---|
| Frequency Range | 108 - 512 MHz | One antenna for multiple mission profiles. |
| Power Handling | 500 Watts | Supports high-power tactical broadcasts. |
| Vertical Beam | 78 Degrees | Maximum coverage for high-altitude aviation links. |
| Construction | 6063T6 Aluminum / ABS | Military-grade durability and zero-maintenance. |
Design Features :AC-108-512 Omni-directional VHF/UHF band antenna is rugged all weather model, uses high class ultra corrosion resistant architectural aluminum alloy and does not require any field tuning or adjustments. The compact size of omni-directional VHF/UHF band antenna allows easy handling, shipping. The antenna is highly suitable as Tx and Rx antenna with high efficiency, to meet the broadband requirement of a base station antenna such as spectrum monitoring or jamming and ATC sites for ground-to-ground and ground-to-air application without having the requirement of multiple antennas. The antenna features high suppression of skin current which provides the smooth VSWR and constant gain over the entire 108-512MHz frequency band. The antenna when packed comes with ground radials removed from the antenna body for ease of packing and transportation. AC-108-512 covers the VHF/UHF civilian band, UHF/UHF aeronautical band and military aviation band.
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