824 - 960 MHz and 1710 - 1980 MHz 2 dBi Gain Rubber Duck Antenna Power RPM and torque vary —

RPM and torque vary — this model is rated at 100 RPM with 2

Supports RS485 half-duplex communication

4mm which is perfect for breadboard applications

it improves signal strength and stability for modules like GSM

There are various methods you can do that

824 - 960 MHz and 1710 - 1980 MHz 2 dBi Gain Rubber Duck Antenna Power RPM and torque vary —The 824960 MHz and 17101980 MHz Rubber Duck Antenna is a compact and efficient solution for wireless communication across 2G and 3G frequency bands. Designed with a flexible rubber housing and equipped with an SMA male connector, this antenna ensures stable and reliable signal performance. It is ideal for GSM modules, routers, IoT devices, and telemetry projects where consistent network connectivity is critical. Features of Rubber Duck Antenna: