915MHz 3dBi Rubber Magnetic Antenna With RG174 Cable (L-3MTR) + SMA (M) St. Connector

A 915MHz 3dBi rubber magnetic antenna is a type of antenna designed for use with devices that operate at a frequency of 915 MHz, which is common in various RF applications such as RFID systems, some IoT devices, and certain types of wireless communication. Here’s a brief rundown of what each term means:

1. 915MHz: This refers to the frequency at which the antenna is optimized to operate. It’s in the UHF (Ultra High Frequency) range and is used in many RF applications.

2. 3dBi: This stands for 3 decibels over an isotropic radiator. It’s a measure of the antenna’s gain. A 3dBi gain means the antenna radiates the signal more effectively in a certain direction compared to an isotropic antenna (a theoretical antenna that radiates equally in all directions).

3. Rubber: The material of the antenna's exterior is rubber, which is flexible and durable. This makes the antenna more robust and suitable for various environments, especially where it might be exposed to physical stress or harsh conditions.

4. Magnetic: The antenna includes a magnetic base, allowing it to be easily attached to metal surfaces. This provides convenience for mounting and repositioning the antenna without the need for permanent installation.

In practice, this type of antenna is often used in applications where you need a flexible, portable antenna that can be easily attached to metal surfaces, such as on the outside of equipment or vehicles. It’s particularly useful in environments where antennas might need to be moved frequently or where a more permanent mount isn't ideal.