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LTM404 (4x WiFi)

LTM404 (4x WiFi)

4×4 MIMO Wi-Fi Vehicle Antenna

The LTM404 is a four-element surface-mount vehicle antenna that supports 4×4 dual-band Wi-Fi MIMO from one compact roof-mounted housing.

Key Features

  • Expands onboard Wi-Fi capacity with four independently cabled dual-band elements.
  • Accommodates one 4×4 MIMO radio or multiple Wi-Fi modem connections.
  • Distributes omnidirectional coverage across 2.4 GHz and 5 GHz bands.
  • Consolidates four connections at one compact roof mounting point.
  • IP67-rated construction protects onboard connectivity in exposed vehicle environments.
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Customization: Cable type, cable length, and connectors can be configured for specific installation requirements.

Product Description

Four Wi-Fi Paths. One Vehicle Antenna.

The LTM404 brings four dual-band Wi-Fi elements together in one compact surface-mounted antenna for fleet and transportation vehicles. Its shared housing supports higher-order Wi-Fi MIMO without requiring four separate exterior antennas.

4×4 Wi-Fi MIMO: Four independently cabled elements support a compatible 4×4 MIMO radio or multiple Wi-Fi modem connections from one antenna location.

Dual-Band Wi-Fi Coverage: Every element covers 2.4–2.5 and 4.9–6.0 GHz with 5 dBi gain, providing four available paths across both Wi-Fi bands.

Compact Roof Integration: All four elements share a 5.50-inch-diameter, 2.38-inch-high housing, helping preserve usable roof space for other vehicle equipment.

Rugged Wi-Fi Protection: IP67-rated construction helps keep dust and water away from internal components, reducing the risk of environmental exposure disrupting onboard Wi-Fi. The antenna operates from −40 °C to +80 °C.

The LTM404 adds four dual-band Wi-Fi connections through one low-profile vehicle mounting point.

Ideal Applications

  • 4×4 MIMO vehicle Wi-Fi systems
  • Fleet and transportation vehicles
  • Multiple onboard Wi-Fi modems
  • Space-constrained roof installations

Example Model Configurations: LTM404(32XBx4)WHT-72-SP558, LTM404-3C3C3C3C-WHT-180, LTM404WHT-72-SP558, MLTM404-3C3C3C3C-WHT-180

Key Specifications

Feature Specification
Technology Wi-Fi
Frequency

Wi-Fi: 2.4–2.5 GHz; 4.9–6.0 GHz
Gain

Wi-Fi: 5 dBi
Configuration 4 × Wi-Fi
MIMO

Wi-Fi: 4×4 MIMO
Connector / Cable

Connectors: SMA plugs standard

Cable: Four separate low-loss 195 cables, 15 ft (4.5 m); SMA plugs standard

Length: 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-stable plastic
Environmental Rating / Qualifications

Ingress: IP67

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

Models & Configurations

Model / Configuration Configuration Details
LTM404(32XBx4)WHT-72-SP558 4× Wi-Fi elements; Stud / through-hole; White radome; RF cables: LMR-195UF; Right-angle N plugs (Amphenol); All RF cables: 72 in (6 ft); SP558: foam filled, potted base bolt, shoulder washer, two nuts, Amphenol connectors
LTM404-3C3C3C3C-WHT-180 4× Wi-Fi elements; Stud / through-hole; White radome; 4× LL-195; 4× SMA Plug; All cables: 180 in (15 ft)
LTM404WHT-72-SP558 4× Wi-Fi elements; Stud / through-hole; White radome; RF cables: LMR-195UF; Right-angle N plugs (Amphenol); All RF cables: 72 in (6 ft); SP558: foam filled, potted base bolt, shoulder washer, two nuts, Amphenol connectors
MLTM404-3C3C3C3C-WHT-180 4× Wi-Fi elements; Magnetic mount; White radome; 4× LL-195; 4× SMA Plug; All cables: 180 in (15 ft)

Tech Documents & Resources

ltm404-and-mltm404-spec-sheet

File size: 306.04 KB
Created: 11-06-2020
Updated: 11-06-2020
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