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Home > Antenna > 4G External Rubber Duck Antenna High Gain L‑type LTE Signal Enhancement FPV Drone Dedicated

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4G External Rubber Duck Antenna High Gain L‑type LTE Signal Enhancement FPV Drone Dedicated

Name: 4G External Rubber Duck Antenna High Gain L‑type LTE Signal Enhancement FPV Drone Dedicated
Brand: Dalang Communication
SKU: AK389
Price: 4.9 USD
Availability: InStock

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Model:AK389
Operating frequency band：LTE Band 4/13
Impedance：50Ω
Polarization mode：linear polarization
Bandwidth (return loss ≤ -10dB)：130Min MHZ
VSWR (Voltage Standing Wave Ratio)： 4Max
Dimensions (L x W x H) ：178.5 x 13.5 x 21.0mm

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Description

丨 Product Introduction

Product Introduction：

AK389 is a high-performance primary-secondary 4G LTE antenna kit, using proprietary technology to deliver stable, high-sensitivity performance in Band 4/13 while complying with RoHS. It is ideal for smart security cameras, vehicle terminals, and industrial IoT devices requiring reliable connectivity in complex environments.

Features：

1.Stable and reliable performance: Exclusive design and advanced production processes ensure stable signal transmission and reception in complex environments, meeting long-term operational requirements.

2.High-efficiency signal reception: Excellent sensitivity and sufficient bandwidth enable efficient capture of 4G signals, ensuring communication quality.

3.Compact size: The compact structure of main and auxiliary antennas occupies minimal installation space, adapting to various device internal layouts.

4.Environmentally compliant: Strictly follows RoHS standards, free from hazardous substances, meeting environmental requirements.

5.Superior craftsmanship: The auxiliary antenna is made of copper with gold-plated surface treatment, enhancing signal transmission stability and product durability.

Key Advantages

Compact L-Type Build for Stable Outdoor Mounting
This antenna uses a rigid L-type form factor with a durable rubber duck housing that helps it stay positioned during mobile use and repeated handling. The outer shell supports daily wear, while the internal structure is tuned to improve reception stability in demanding environments. As a high gain 4g lte antenna, it is designed to strengthen signal capture and reduce dropouts where weaker antennas struggle.
The extended external design supports cleaner placement away from device interference, which can improve consistency in mixed-signal setups. It works as a practical l type rubber duck antenna for devices that need a compact but more capable antenna profile, with a straightforward connection style that suits field equipment, embedded terminals, and other hardware that benefits from dependable LTE performance.

Focused LTE Support for Reliable Link Quality
Built for 4G use, this antenna emphasizes stable performance on supported LTE bands rather than decorative styling. The reinforced construction helps maintain signal behavior in outdoor, vehicle, and rack-mounted setups, while the external format supports better positioning than many internal antennas. It functions as a 4g signal enhancement antenna for setups that need stronger reception and more consistent data links under practical operating conditions.
For FPV and remote-control applications, the antenna profile is suited to systems that need a more dependable radio link without added complexity. It also serves as an external lte antenna for fpv drone when a compact, mounted solution is required for airborne or field-deployed equipment.

丨 Product Structure

丨 Specification parameters

Electrical specifications
Main Antenna	operating frequency band	LTE Band 4/13
	impedance	50Ω
	polarization mode	linear polarization
	Bandwidth (return loss ≤ -10dB)	130Min MHZ
	VSWR (Voltage Standing Wave Ratio)	4Max
	Dimensions (L x W x H)	178.5 x 13.5 x 21.0mm
Sub Antenna	operating frequency band	LTE Band 4/13
	impedance	50Ω
	polarization mode	linear polarization
	Bandwidth (return loss ≤ -10dB)	130Min MHZ
	VSWR (Voltage Standing Wave Ratio)	4Max
	Dimensions (L x W x H)	95100.12mm
	connecting wire	IPEX interface, length 110mm

Main Antenna VSWR:

丨 Antenna TRP&TIS

Packaging and Delivery：

Use Scenarios

FPV Drone and Remote Field Equipment
When a drone or mobile platform needs better LTE reception for live data, telemetry, or remote monitoring, this antenna can be mounted as part of the communication system. The L-shaped form makes placement easier on compact frames, and the rubber duck design helps resist minor impact and vibration during operation. Users who want to buy 4g external antenna solutions often choose this style for equipment that needs practical signal support in the field.
It is also a strong fit for setups requiring an external lte antenna for fpv drone, especially where maintaining a stable link matters more than keeping the smallest possible footprint.

Vehicle Terminals and Security Monitoring Systems
For fleet devices, tracking units, and roadside terminals, this antenna can be used to improve LTE reception in metal-heavy environments where internal antennas may be limited. Its external mounting format supports clearer placement on dashboards, enclosures, or equipment bays, making it useful for systems that need steady data transfer and remote connectivity. It is well suited as a 4g signal enhancement antenna in commercial deployments where consistent network access supports daily operations.
Security cameras and monitoring controllers can also benefit from a high gain 4g lte antenna when the installation site requires stronger signal capture for reliable alerts and video transmission.

FAQ

Q1. What is this antenna designed for?
This unit is built as a dedicated external LTE antenna for FPV drone use, and it is also suitable for 4G-connected devices that need more stable signal reception. We position it as a practical option for users who need reliable external mounting rather than internal antenna placement.

Q2. Which signal bands does it support?
The antenna is optimized for stable Band 4/13 connectivity, according to the product details. We recommend using it in setups that match those LTE bands so buyers can evaluate fit before purchasing a high gain 4G LTE antenna for their device.

Q3. How should I install the antenna?
Installation typically depends on the host device and mounting point. Our L type rubber duck antenna format is intended for external attachment, so users should confirm connector fit, available space, and cable routing before setup to maintain stable placement.

Q4. Is this suitable for industrial or vehicle applications?
Yes, the product description lists use cases such as industrial IoT, security cameras, and vehicle terminals. We offer this antenna as a 4G signal enhancement antenna for systems that need dependable LTE reception in those environments.

Q5. Is the antenna compliant with common material standards?
Standard product information states that this model is RoHS-compliant. We share that specification so buyers can review material compliance when planning procurement or deciding whether to buy 4G external antenna units for integrated deployments.

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4G External Rubber Duck Antenna High Gain L‑type LTE Signal Enhancement FPV Drone Dedicated

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