Description

Specification Typical specification / options
Antenna design Passive whip antenna
Frequency bands GSM 850 / 900 / 1800 / 1900 MHz; some models support only 900 / 1800 MHz
Nominal impedance 50 Ω
Gain Commonly 2–3 dBi; model-dependent
Polarization Linear, vertical when mounted upright
Radiation pattern Typically omnidirectional around the antenna
Connector Commonly SMA male; verify standard SMA versus RP-SMA
Cable type Commonly RG174 coaxial cable
Cable length Common options: 1 m, 2 m or 3 m
Mounting Magnetic base for steel surfaces
Housing colour Black
Power supply No separate supply required
Module compatibility SIM800L/SIM900 boards with matching frequency coverage and antenna connector
Applications GSM project boards, SMS alarm systems, telemetry and remote monitoring