Selection and Installation Guide for External Antenna for 4G LTE Cam S330
Modified on: Wed, 10 Dec, 2025 at 11:31 AM
1. External Antenna Types
Logarithmic Periodic Antenna (Preferred)：
Characteristics of Logarithmic Periodic Antennas: A logarithmic periodic antenna is a type of non-frequency-variable antenna. Non-frequency-variable means that the antenna's impedance, radiation pattern, gain, VSWR, and other electrical characteristics vary periodically in a logarithmic manner with frequency, and remain essentially unchanged over a wide frequency band. The number of elements in the radiation region is generally not less than three. The more elements in the radiation region, the stronger the antenna's directionality and the higher its gain.
Installation Requirements: The front end of the antenna needs to be directly facing the cellular towers.
Radiation Pattern of External Antenna：
2. Antenna Specification Requirements
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3.External Antenna Connection and Components
The first installation method is recommended
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Performance of Each Component
- Logarithmic Periodic Directional Antenna: Operating frequency 600MHz-2600MHz, should meet at least 700MHz-2600MHz, gain >10dBi
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