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LTMG503 (2x LTE, WiFi, GNSS, Iridium)

LTE, Wi-Fi, Iridium, and GNSS Antenna


The LTMG503 is a five-element vehicle antenna that supports two LTE connections plus Wi-Fi, Iridium, and active GNSS from one surface-mounted housing.

Key Features

  • Maintains two LTE paths across low-band and higher-frequency ranges.
  • Adds dedicated dual-band Wi-Fi and Iridium connections.
  • Integrates GNSS positioning without another roof-mounted antenna.
  • Consolidates five RF connections at one compact mounting point.
  • IPX7-rated construction protects internal components from water exposure.

Customization: Cable type, cable length, and connectors can be configured for specific installation requirements.

Product Description

Cellular, Wi-Fi, Iridium, and GNSS in One Mount.

The LTMG503 brings four communications and positioning functions together in one compact vehicle antenna. Two LTE paths, one dual-band Wi-Fi path, one Iridium path, and active GNSS share a five-cable surface-mounted housing for fleet and transportation installations.

Dual LTE Connections: Two cellular elements cover 694–960 and 1710–2100 MHz for compatible LTE equipment.

Separate Wi-Fi and Iridium Paths: One element covers 2.4–2.5 and 5–6 GHz for Wi-Fi, while a dedicated element covers the 1616–1626.5 MHz Iridium band.

Integrated GNSS Positioning: The active GNSS element supports positioning at 1561, 1575, and 1602 MHz without another exterior antenna housing.

Water-Resistant Multi-System Protection: IPX7-rated construction helps keep water from reaching internal components. UV-inhibitive ASA, corrosion-resistant aluminum, and a −40 °C to +80 °C operating range protect the antenna across exposed mobile conditions.

The LTMG503 provides a compact connection point for vehicles using terrestrial wireless, Iridium, and positioning equipment together.

Ideal Applications

  • Fleet vehicles using LTE and Iridium radios
  • Remote transportation equipment
  • Onboard Wi-Fi connections
  • Vehicle navigation and tracking

Example Model Configurations: LTM503-3C3C3C3C2C-WHT-180, LTMG503-3C3C3C3C2C-WHT-180, MLTM503-3C3C3C3C2C-WHT-180, MLTMG503-3C3C3C3C2C-WHT-180

Key Specifications

Feature Specification
Technology 4G LTE, GNSS, Iridium, Wi-Fi
Frequency

Cellular: 694–960 MHz; 1710–2100 MHz

Wi-Fi: 2.4–2.5 GHz; 5–6 GHz

Iridium: 1616–1626.5 MHz

GNSS: 1561, 1575, and 1602 MHz

Gain

Cellular: 3 dBi low band; 4 dBi high band

Wi-Fi: 4 dBi low band; 5 dBi high band

Iridium: 3.5 dBi

Configuration 2 × cellular; 1 × Wi-Fi; 1 × GNSS; 1 × Iridium
Bands

LTE: 2, 3, 5, 6, 8, 9, 12, 13, 14, 17, 18, 19, 20, 25, 26, 27, 28, 29, 33, 34, 35, 36, 37, 39, 44, 67, 68, 85, 103, 106, 111

MIMO

Cellular: MIMO

Connector / Cable

Connectors: All paths: SMA plug

Cable: Cellular/Wi-Fi/Iridium: low-loss 195; GNSS: RG-174

Length: All paths: 15 ft (4.5 m)

Mounting 7/8 in (22 mm) feed-through; 3/4 in (19 mm) thread for surfaces up to 1/2 in (13 mm); 1 sq ft ground plane recommended for stud mount
Dimensions 5.50 in diameter × 2.38 in high (140 × 60.4 mm)
Material

Housing: ASA UV-inhibitive plastic

Base: Corrosion-resistant aluminum

Environmental Rating / Qualifications

Ingress: IPX7

Qualifications: IEEE 1478; EN 61373; MIL-810G; TIA-329.2-C

Operating Temperature −40°C to +80°C

Models & Configurations

Model / Configuration Configuration Details
LTM503-3C3C3C3C2C-WHT-180 2× LTE elements; 1× Wi-Fi element; 1× Iridium element; 1× GPS element; Stud / through-hole; White radome; 4× LL-195; 1× RG-174; 5× SMA Plug; All cables: 180 in (15 ft)
LTMG503-3C3C3C3C2C-WHT-180 2× LTE elements; 1× Wi-Fi element; 1× Iridium element; 1× GLONASS/GPS element; Stud / through-hole; White radome; 4× LL-195; 1× RG-174; 5× SMA Plug; All cables: 180 in (15 ft)
MLTM503-3C3C3C3C2C-WHT-180 2× LTE elements; 1× Wi-Fi element; 1× Iridium element; 1× GPS element; Magnetic mount; White radome; 4× LL-195; 1× RG-174; 5× SMA Plug; All cables: 180 in (15 ft)
MLTMG503-3C3C3C3C2C-WHT-180 2× LTE elements; 1× Wi-Fi element; 1× Iridium element; 1× GLONASS/GPS element; Magnetic mount; White radome; 4× LL-195; 1× RG-174; 5× SMA Plug; All cables: 180 in (15 ft)

Tech Documents & Resources

LTMG503 5-Cable Spec Sheet

LTM503 with Iridium Series Radiation Pattern

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