DAB Antenna company_DAB Antenna_commun antenna custom_SHENZHEN VLG WIRELESS TECHNOLOGY CO., LTD

commun antenna custom: FM Antenna

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OBD antenna

Overview

The 4-in-1 sharkfin antenna provides a comprehensive communication solution by integrating AM/FM radio, digital audio broadcasting (DAB), 4G LTE, and GNSS (Global Navigation Satellite Systems) into a single, compact unit. This versatile antenna streamlines equipment design, reduces installation space and costs, and offers high-precision positioning and navigation capabilities. Its compatibility with various receivers makes it suitable for a wide range of applications, from automotive and marine to outdoor recreational activities

Key Features

• High performance amplifiers & filters

This combination antenna has built-in amplifiers and filters to enhance the received signal and reduce noise interferences.

• Anti-interference

To ensure stable operation in complex environments, this antenna is specially designed to reduce interference from other wireless devices.

• Multi-band Coverage

This antenna typically support AM & FM radio reception, digital audio broadcasting (DAB), and 4G LTE network connectivity. In addition, it provides GNSS functions.

Specification

Function	GNSS	4G	AM/FM	DAB
(1) Frequency range:	1558-1577MHz	824-960/1710-2170/2300-2690MHz	98MHz±2MHz (Center frequency)	Band Ⅲ 174-240MHz； L-Band 1452-1492MHz
(2) V.S.W.R:	≤2.0	<3.0	≤2.5	≤3.0（f0±5MHz）
(3) Impedance:	50Ω± 3Ω	50Ω	50Ω± 3Ω	50Ω± 3Ω
(4) Gain:	≥2.0dB	≥-4dBi	≥2.0dB
(5) Polarization:	RHCP	Linear
Low noise amplifier characteristics
(1) Frequency range:	1558-1577MHz		AM 520- 1710KHz FM 87.5-108MHz	Band Ⅲ 174-240MHz； L-Band 1452-1492MHz
(2) Working voltage:	DC 3.0V-5.0V		DC 9.0-16V	DC 5.0V±0.2V
(3) Working current:	10±3mA		50±10mA	20mA～35mA
(4) Output gain:	30±3dB		AM 5±3dB FM 15±3dB	Band Ⅲ :17±3dB L-Band :19±3dB
(5) Output impedance:	50Ω±3Ω		50Ω±3Ω	50Ω
(6) Output standing wave ratio:	≤2.0		≤2.0	≤2.0
(7) Noise factor:	≤1.5dB		≤3.5dB	≤3.5dB
(8) Intermodulation intensity			≥50dB

Environmental Requirements
(1) Operating temperature	-40℃ ~ +85℃
(2) Storage temperature	-40℃ ~ +90℃
(3) Protection grade	IP67 (after vehicle assembly)