Omni-directional antenna Poynting OMNI-498 — SMA connector, 9.8 dBi, 2.4–7.2 GHz, 750 mm height

The Poynting OMNI-498 is an omni-directional antenna offering wide frequency coverage and elevated gain for outdoor and indoor wireless systems. With a maximum gain of 9.8 dBi and support for frequency ranges 2.4–2.5 GHz, 3.3–4.2 GHz and 4.9–7.2 GHz, this 750 mm tall antenna is designed for applications that require broad azimuth coverage, including cellular, Wi‑Fi and other RF links. The antenna uses a 50 Ω SMA connector, features vertical element separation for 2x2 MIMO operation and is housed in a white, UV-stable radome suitable for marine and coastal environments.

Advantages

The OMNI-498 combines dual-band coverage with nearly 10 dBi of gain to extend link range while maintaining a full 360° radiation pattern. Its 2x2 MIMO capability improves throughput and link reliability compared with single-element designs. The radome and internal foam-filled construction deliver IP68 ingress protection and resistance to saltwater and UV, making the antenna suitable for harsh outdoor and marine installations. An SMA interface allows compatibility with a wide range of routers, access points and RF devices.

Suitable for

• Marine and coastal Wi‑Fi on yachts, ferries and workboats
• Outdoor Wi‑Fi 6E and legacy Wi‑Fi deployments requiring up to 7.2 GHz support
• Cellular and multi‑band RF systems needing omni‑directional coverage
• Ports, harbours and industrial WLAN sites
• High‑end router and 2x2 MIMO access point installations

Key specifications

• Peak gain: 9.8 dBi
• Frequency coverage: 2.4–2.5 GHz, 3.3–4.2 GHz, 4.9–7.2 GHz
• Impedance: 50 Ω
• Connector type: SMA
• Polarisation: vertical elements arranged for 2x2 MIMO
• Height: 750 mm
• Diameter: 75 mm
• Colour: white, UV-stable radome
• Ingress protection: IP68, foam-filled construction
• Environmental protection: saltwater resistant and UV protected

How to use

Mount the OMNI-498 vertically on a suitable pole or bracket using corrosion-resistant hardware and ensure the SMA connector is properly tightened to the coaxial cable and mating device. Position the antenna clear of large metallic obstructions and at an elevated location to maximise azimuthal coverage. Use appropriate marine-grade coax and weatherproofing on the connector for outdoor or saltwater installations. Verify device compatibility and configure the connected equipment to use the antenna for the required frequency bands.

Recommendations

For marine and coastal deployments, select stainless steel or marine-grade mounting hardware and apply additional weatherproofing at cable entry points. When using the antenna for Wi‑Fi 6E or high-frequency links near 6–7 GHz, keep feedline losses low by using high-quality, low-loss coax and keep cable runs as short as practical to preserve signal level. Regularly inspect the radome and connectors for fouling or damage in harsh environments.