FMC-98 FM Band Fiberglass Collinear Antenna | 88-108 MHz 3 dBi
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FMC-98

FM Broadcast 3dBi Gain Vertical

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FMC-98FM Broadcast 3dBi Gain Vertical88-108MHz3 dBi.Download DatasheetDownload ManualPost Enquiry

Overview: FMC-98 FM Band Omni-Directional Fiberglass Collinear Antenna

The FMC-98 is a heavy-duty, military-grade Fiberglass Collinear Antenna precision-tuned for the 88–108 MHz FM band. Designed as a ruggedized, all-weather aperture, it serves as a reliable primary radiator for community broadcasting and tactical communication links. By utilizing a center-fed design and large-diameter brass radiating elements, the FMC-98 provides a stable 3 dBi gain and a true 360-degree omni-directional pattern, ensuring consistent signal saturation across the operating theater.

Hardened Construction & Shielding

Strategic engineering for zero-failure performance in severe environments. The FMC-98 is built to survive the world's most punishing climates. All internal junctions are fully welded to prevent mechanical loosening and RF inter-modulation (IM), ensuring signal purity even during high-power operations. The radiating array is completely enclosed within a high-tech ruggedized fiberglass radome, which is transparent to RF signals but impervious to corrosive gases, UV radiation, and heavy wind loads. All exposed metal surfaces use 6063T6 ultra-corrosion-resistant architectural aluminum, and the mounting hardware is fabricated from Type 316 marine-grade stainless steel.

Operational Efficiency

Center-fed precision with superior pattern stability. Unlike end-fed antennas that may suffer from pattern distortion, the FMC-98 features a center-fed design. This architectural choice eliminates radiation pattern tilting, ensuring the horizontal signal remains a true, uniform circle. The system utilizes specialized stub matching to maintain a smooth VSWR of better than 1.5:1 over its specified 3 MHz bandwidth. With a wide 76-degree vertical beamwidth, it provides excellent "null fill," making it ideal for saturating localized areas and communicating with receivers at varying elevations.

Detailed Technical Features

  • High-Efficiency Collinear Design: Large-diameter brass elements provide superior electrical conductivity and thermal stability for up to 350 Watts of RF power.
  • Radome-Protected Radiator: 44 mm diameter fiberglass enclosure protects the internal array from the detuning effects of ice, snow, and rain.
  • Inter-Modulation Suppression: Fully welded junctions eliminate the "diode effect" common in non-welded antennas, ensuring a clean RF noise floor.
  • Weather-Protected Termination: The N-Female connector is fully enclosed at the bottom of the support pipe, shielded from direct environmental ingress.
  • Standard Mount Compatibility: Designed for easy installation on standard 52 mm (2-inch) mount pipes using the supplied stainless steel hardware.
  • Compact Tactical Logistics: The 2.3-meter overall length is optimized for easy handling, rapid mobilization, and lower shipping costs compared to larger multi-bay arrays.

Detailed Environmental Features

The FMC-98 is built to maintain performance across extreme mission parameters:

  • High-Velocity Wind Stability: Aerodynamically optimized to withstand constant winds up to 200 Km/Hr.
  • Thermal Resilience: Certified for flawless operation in temperatures ranging from -30°C to +70°C.
  • Ingress & Moisture Protection: Fully functional in 0 to 95% Relative Humidity, suitable for tropical, desert, or high-salinity coastal theaters.
  • Tactical Finish: Supplied in standard Olive Green, providing a low-observability profile for military or covert installations.

Key Advantages, Benefits & Applications

Key Advantages:

  • Zero-Maintenance Reliability: The fully welded, radome-protected design eliminates the need for periodic field tuning or internal cleaning.
  • Stable Horizontal Coverage: The center-fed architecture ensures no "blind spots" in the 360-degree horizontal service area.
  • Immediate Deployment: Factory-calibrated design requires no field adjustments, facilitating "plug-and-play" installation for rapid-response units.

Key Applications:

  • Community & Regional FM Broadcasting: High-reliability primary antenna for local FM radio stations.
  • Tactical Information Dissemination: Ideal for disseminating audio and data signals in field environments via FM broadcast.
  • Emergency Alert Systems: Durable infrastructure for civil defense and disaster response communication.
  • VHF Signal Monitoring: A sensitive, low-noise probe for spectrum scanning and regulatory monitoring in the 88-108 MHz band.

 

Design Features : FMC-98 FM Band Omni Directional Fiberglass Collinear Antenna is rugged all weather model, enclosed in a Fiber Glass radome, uses high class ultra corrosion resistant architectural aluminium alloy and does not require any field tuning or adjustments. The compact size of FM band figer glass collinear antenna allows easy handling and shipping.

Constructions: The co-axial “Skirt” stub matching is used for smooth VSWR and constant Gain over the specified bandwidth. This FM band fiber glass collinear antenna is specially designed to avoid the uses of any Ground Plane. The FM Band Collinear Antennas consist of large diameter brass radiating elements stacked vertically, fed in phase and enclosed in fiber glass tube.

Mounting: Antenna is supplied with marine grade stainless steel mounting hardware which is suitable for mounting the antenna on 32mm to 52 mm (1.25 Inches to 2 Inches) outer diameter pipe.

Electrical Specifications:
Frequency Range88 - 108 MHz.
Gain3 dBi.
Bandwidth3 MHz.
Antenna TypeOmni
PolarizationVertical
Input Impedance50 Ohms.
Radiation PatternOmni
Beamwidth -3dB.76 Degrees (Vertical)
VSWR - Equal To or Better Then         1:1.5
RF Power Handling Capacity350 Watts
Input TerminationN-Female

 

Mechanical Specifications:
Mounting Hardware -MaterialsStainless Steel
Weight Approx4 Kgs.
Wind Rating200 Km/Hr.
Overall Length2.3 Meters
Shipping Length2.4 Meters
Support Pipe MaterialAluminum
Radiating MaterialAll Brass
Maximum Mount Pipe Diameter52 mm (2 Inches)
Radome MaterialFiberglass
Radome Outer Diameter44mm
Radome Length1550 mm

 

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