Beitian BT-35A/BT-35B External GNSS Antenna 28±2dB SMA-J RG174 3m for Car & Marine Navigation

Beitian

$32.82 USD

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Model BT-35A(Magnet) BT-35B(Glue)

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Overview

The Beitian BT-35 series is an external GNSS antenna with an integrated LNA, designed for multi-constellation positioning (GPS/BDS/GLONASS/Galileo). It is available in two mounting variants: BT-35A (magnetic bottom) and BT-35B (double-sided tape). With an SMA-J connector and RG174 cable, it is suitable for automotive navigation and marine tracking installations where stable signal reception is required.

Key Features

Working mode: BDS B1 / GPS L1 / GLONASS L1 / GALILEO E1
LNA gain: 28±2dB
Low VSWR: <1.5
Polarization: RHCP (right-handed circular)
360° horizontal coverage angle
Connector: SMA-J; Cable: RG174; Cable length: 3m
Mounting options: magnetic bottom (BT-35A) or double-sided tape (BT-35B)

Specifications

Receiving Frequency Range / Bands

BDS B1	1561MHz
GPS L1	1575.42MHz (also shown as 1575MHz)
GLONASS L1	1602MHz
GALILEO E1	1575.42MHz

Ceramic Antenna Characteristics

Gain	2dBi
Output VSWR	<1.5
Impedance	50Ω
Polarization	RHCP
Axis ratio	<3dB
Horizontal coverage angle	360°

LNA Specification

LNA Gain	28±2dB
Noise figure	<2dB (Only LNA)
Output VSWR	<1.5
Output impedance	50Ω
Passband ripple	±2.0dB (Only LNA)
Supply voltage	2.8V-5.0V (also shown as 3.0-5.0V)
Supply current	≤20mA

Environment

Operating temperature	-40°C to +85°C
Storage temperature	-40°C to +85°C
Wet degree	40% - 95%

Mechanical / Interface

Connector	SMA-J
Cable	RG174 Cable
Cable length	3m (also shown as 3000±30)
Weight	<120g

Model Variants

Model	Size	Mounting
BT-35A	49.549.516mm (also shown as 49.50±0.2 and 16.00±0.1)	Magnetic Bottom
BT-35B	49.549.517.8mm	Double-sided tape

What's Included

1 x Beitian BT-35 series external GNSS antenna (selected model: BT-35A or BT-35B)

Applications

Car navigation
Marine tracking / shipboard installations
Dash cam positioning systems
Traffic light and infrastructure timing/positioning equipment
Measuring instruments (including acreage meters)
Electric vehicles and unmanned vehicles
Precision agriculture, shipbuilding industry, driving test and driver training equipment

For selection help between BT-35A (magnet) and BT-35B (tape), or to confirm your device’s antenna bias voltage and SMA-J interface requirements, contact support at https://rcdrone.top/ or email support@rcdrone.top.