SKU: IOWC-0728
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LWC-GSM-MM-03 GSM Antenna Stub Cable (1.0m RG58, SMA)

₹162.00 (Inclusive of all taxes)
Out of Stock

The LWC-GSM-MM-03 is a 1.0-meter RG58 coaxial cable assembly with an integrated stub, designed for GSM (2G) frequency bands (824-960MHz & 1710-1980MHz). It provides 4 dBi gain and SMA plug termination for impedance matching and flexible integration in cellular IoT setups.

Features

  • Dual-Band GSM Coverage: Supports primary 2G bands (824-960MHz & 1710-1980MHz) for reliable cellular IoT connectivity in legacy and M2M networks.
  • Integrated Stub Design: The built-in stub section aids in impedance matching and tuning, offering flexibility for optimizing antenna performance in compact RF layouts.
  • RG58 Coaxial Construction: Features a 1.0-meter RG58 cable with 50-ohm impedance, ensuring low-loss signal transmission and robust mechanical durability.
  • SMA Plug Connector: Terminates with a standard SMA male plug for direct connection to GSM/GPRS modules, routers, or gateways with SMA female jacks.
  • Moderate Gain & Power Handling: Delivers 4 dBi gain with a VSWR <2.2 and handles up to 10W RF power, suitable for typical cellular module output levels.

Out of stock

Description

The LWC-GSM-MM-03 is a specialized coaxial cable assembly engineered for GSM RF systems. It combines a 1-meter RG58 cable with an integrated stub section, which serves as a tuning element for impedance matching, helping to fine-tune antenna performance and mitigate mismatch losses in compact device enclosures. This assembly is terminated with an SMA plug, providing a direct, reliable interface for cellular modules and industrial routers.

Constructed with anodized aluminum and standard RG58 coaxial cable, it ensures 50-ohm impedance matching across the dual GSM bands. With a gain of 4 dBi and a power handling capability of 10W, it is built to support continuous operation in IoT telemetry, remote monitoring, and asset tracking applications where stable 2G connectivity is essential.

Key Features

  • Integrated Stub for Impedance Matching: The stub section allows for fine-tuning and matching network adjustments, improving VSWR and overall RF efficiency in constrained layouts.
  • Dual-Band GSM Frequency Support: Covers both the 824-960MHz and 1710-1980MHz bands, ensuring compatibility with global 2G GSM/GPRS networks for M2M communication.
  • Low VSWR Performance: Maintains a voltage standing wave ratio (VSWR) of less than 2.2 across operating bands, minimizing reflected power and maximizing transmitted signal strength.
  • Robust RG58 Cable Assembly: Utilizes a 1.0-meter RG58 coaxial cable with 50-ohm characteristic impedance, offering a balance of flexibility, durability, and low signal attenuation.
  • Standard SMA Plug Interface: Provides a ubiquitous SMA male connector for secure, screw-on attachment to cellular modules, gateways, and test equipment with SMA female ports.
  • Linear Polarization: Features linear polarization aligned with typical GSM antenna systems, ensuring optimal signal reception and transmission in standard orientations.

Applications

  • GSM/GPRS M2M Modules: External antenna connection for SIM800, SIM900, SIM7000 series modules in IoT telemetry and remote monitoring devices.
  • Industrial Cellular Routers/Gateways: Provides a flexible, tunable antenna link for 2G-enabled industrial routers and serial servers in harsh environments.
  • Asset Tracking & Fleet Management: Enables reliable 2G connectivity for GPS trackers and logistics monitoring systems using GSM networks.
  • Legacy 2G Network Equipment: Serves as a replacement or extension cable for aging GSM infrastructure, base stations, or test setups.

Technical Specifications

Item TypeGSM Antenna Cable Assembly
Model NumberLWC-GSM-MM-03 (STUB 1.0M-RG58)
Operating Frequency824 – 960 MHz & 1710 – 1980 MHz
Gain4 dBi
Impedance50 Ω
VSWR< 2.2
PolarizationLinear
Power Handling10 W
Cable Type / LengthRG58 / 1.0 m
Connector TypeSMA Plug (Male)
Beamwidth (HPBW)H: 360°; V: 30°/ 40°

Frequently Asked Questions

What is the purpose of the 'stub' in this LWC-GSM-MM-03 cable assembly?

The integrated stub is a short, fixed-length section of transmission line used for impedance matching and tuning in RF circuits. It helps optimize the antenna's VSWR (Voltage Standing Wave Ratio) by compensating for impedance mismatches between the cable, connector, and the GSM module's RF port. This improves power transfer efficiency and signal integrity, which is particularly useful in compact device designs where antenna placement is constrained.

Can I use this antenna cable with 4G LTE modules, or is it only for 2G GSM?

This cable is specifically tuned for the 824-960MHz and 1710-1980MHz frequency bands, which are primary 2G GSM bands. While it may physically connect to a 4G module's SMA port, its performance will be suboptimal for common 4G LTE bands like 700MHz, 1800MHz, or 2600MHz. For reliable 4G/LTE operation, use an antenna specifically designed and rated for the required LTE frequency bands to ensure proper gain, VSWR, and impedance matching.

How do I connect and install this SMA stub cable to my GSM module?

Ensure your GSM module (e.g., SIM800 series) is powered off. Identify the module's external antenna connector, which is typically a female SMA jack. Screw the SMA plug from the LWC-GSM-MM-03 cable onto this port hand-tight, avoiding over-torquing. Route the 1-meter RG58 cable away from other noise sources or power lines. For optimal performance, keep the cable as straight as possible and avoid sharp bends near the connector. Finally, power on your device and verify network connectivity.

Package Includes

  • 1 x LWC-GSM-MM-03 (STUB 1.0M- RG58) Cable Assembly

Additional Information

Weight 0.075 kg
Dimensions 12 × 3 × 2 cm