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SMWG-310 at UHF, WiFi, GNSS. SMWG-311 with Global Cellular, GNSS, & Wi-Fi

SMWG-311 (4G Cellular, WiFi, GNSS)

4G Cellular, Wi-Fi, and GNSS Antenna

The SMWG-311 is a compact surface-mount antenna that provides separate wideband 4G cellular, dual-band Wi-Fi, and active GNSS connections for fleet and public-safety gateways.

Key Features

  • Covers 694–960 and 1710–3700 MHz for broad 4G connectivity.
  • Keeps onboard Wi-Fi independent from cellular backhaul.
  • Adds GNSS for navigation, tracking, and timing.
  • Consolidates three connections in one IP67-rated vehicle mount.
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Customization: Cable type, cable length, and connectors can be configured for specific installation requirements.

Product Description

Broad 4G Backhaul, Wi-Fi, and GNSS. One Mount.

The SMWG-311 integrates wideband 4G cellular service, dual-band Wi-Fi, and active GNSS in one compact vehicle antenna. Each function retains a dedicated cable while the shared housing reduces separate antenna bodies and mounting points.

Wideband 4G Cellular Coverage: The cellular element spans 694–960 and 1710–3700 MHz for compatible 4G LTE and legacy mobile equipment.

Independent Local Networking: The Wi-Fi element covers 2.4–2.5 and 4.9–6.0 GHz without sharing the cellular backhaul connection.

GNSS Positioning Built In: Active GNSS supports navigation, tracking, and timing from the same roof-mounted antenna.

Protection for Vehicle Service: The IP67-rated UV-resistant ASA housing helps shield internal components from dust and water across mobile installations.

The SMWG-311 provides three dedicated connections for gateways that need broad 4G service, dual-band Wi-Fi, and GNSS.

Ideal Applications

  • Connected fleet vehicles
  • Public-safety gateways
  • 4G mobile routers
  • Onboard Wi-Fi systems
  • Vehicle navigation and tracking

Example Model Configurations: SMWG-311-3C3C2C-WHT-180

Key Specifications

Feature Specification
Technology 4G LTE; 3G / 2G; Wi-Fi / WLAN; GNSS
Frequency

Cellular: 694–960 MHz ; 1710–3700 MHz

Wi-Fi: 2.4–2.5 GHz ; 4.9–6.0 GHz

GNSS: 1561, 1575, and 1602 MHz
Gain

Cellular: 3 dBi (low band); 4 dBi (high band)

Wi-Fi: 5 dBi

GNSS: 5 dBi nominal RHCP
Configuration Cellular (feeds 1); Wi-Fi (feeds 2); GNSS (feeds 3)
Polarization

GNSS: RHCP
Connector / Cable

All documented paths connector: SMA plugs (male); other connector options may be available

Cellular and Wi-Fi cable: LL-195

GNSS cable: RG-174

Cellular and Wi-Fi length: 15 ft (4.5 m)

GNSS length: 15 ft (4.5 m)
Mounting Threaded 3/4 in diameter × 1/2 in long stud for a 1/4 in thick surface; gasket and nut supplied; metal surface or ground plane recommended
Dimensions 4.20 in diameter × 3.20 in high (107 × 81 mm)
Material UV-resistant ASA plastic
GNSS Details

Systems: GPS; GLONASS

Type: Active

LNA gain: 26 dB LNA

Bias: 2.7–5 VDC; 20 mA maximum / 10 mA typical
Environmental Rating / Qualifications

Ingress: IP67

Qualifications: IEEE 1478; EN 61373; MIL-810G; TIA-329.2-C
Operating Temperature -40 to 80 °C

Models & Configurations

Model / Configuration Configuration Details
SMWG-311-3C3C2C-WHT-180 GLONASS/GPS; 694-960/1710-3700 MHz; 2.4-2.5/4.9-6 GHz; White; Cable: LL-195; RG-174; SMA Plug; Cable length: 15Ft

Tech Documents & Resources

smw-311-and-mgw-311-spec-sheet

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Created: 10-06-2020
Updated: 10-06-2020
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SMW-311 Series Radiation Pattern

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Created: 26-05-2020
Updated: 26-05-2020
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