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SMG-U15 (US Cellular, GNSS), SM-1620/1575

SM-1620/1575 (Iridium®, GPS)

Iridium and GPS in a Low-Profile Surface-Mount Housing

The SM-1620/1575 combines an Iridium-approved 1616–1626.5 MHz element and active GPS at 1575 MHz in one 4.5-inch surface-mount radome.

  • Combines separate Iridium and GPS feeds in one housing.
  • Includes a 26 dB GPS LNA for active positioning reception.
  • Uses dedicated 10-foot cables with SMA male connectors.
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Customization: Cable type, cable length, and connectors can be configured for specific installation requirements.

Product Description

The SM-1620/1575 places Iridium satellite communication and GPS positioning under one low-profile surface-mount radome. Separate feeds cover 1616–1626.5 MHz for Iridium and 1575 MHz for GPS.

The Iridium path provides 3.5 dBi gain and handles up to 10 watts. The active GPS path combines a 5 dBi RHCP antenna with a 26 dB LNA and accepts 3.3 or 5 VDC bias.

Installation: A 5/8-inch feed-through mount secures the IPX5 housing, with dedicated RG-58 and RG-174 cables for the two functions.

Example Model Configurations: SM-1620/1575-1C2C-WHT-120

Key Specifications

Feature Specification
Technology Iridium satellite communications; GPS
Frequency

Iridium: 1616-1626.5 MHz

GPS: 1575 MHz
Gain

Iridium: 3.5 dBi

GPS antenna: 5 dBi
Configuration

2 independent RF feeds: 1 Iridium, 1 active GPS
Polarization

Iridium: RHCP

GPS: RHCP
Connector / Cable (1C2C-WHT-120)

Iridium: SMA plug (male); RG-58; 10 ft

GPS: SMA plug (male); RG-174; 10 ft
Mounting 5/8 in diameter feed-through with 5/8-24 threads; lock nut and gasket included; access below the mounting surface is required
Dimensions 4.50 in diameter x 0.95 in high (114.3 x 24.1 mm)
Material

Housing: ASA UV-inhibitive plastic
Maximum Input Power

Iridium: 10 W max
Active GPS

Type: Active

LNA gain: 26 dB

Bias: 3.3 / 5 VDC; 10 mA typical, 20 mA max
Environmental Rating / Qualifications

Ingress: IPX5
Operating Temperature -40 °C to +85 °C

Models & Configurations

Model / Configuration Configuration Details
SM-1620/1575-1C2C-WHT-120 1× Iridium element; 1× GPS element; Stud / through-hole; White radome; 1× RG-58; 1× RG-174; 2× SMA Plug; All cables: 120 in (10 ft)

Tech Documents & Resources

SM-1620-1575-1C2C-WHT-120

File size: 124.11 KB
Created: 10-07-2020
Updated: 10-07-2020
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SM-1620 Radiation Pattern

File size: 89.07 KB
Created: 26-05-2020
Updated: 26-05-2020
Hits: 1552
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