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Standard Horizon

STH-CN3

SMA/BNC connector

The reference document provided for SKU STH-CN3 is the user manual for the Standard Horizon HX300E portable VHF radio. Information regarding an SMA/BNC adapter cannot be validated by the admissible source.

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15,83€

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Prices shown excluding VAT for Bahrain. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Awaiting restock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Detailed description

The reference document provided for SKU STH-CN3 describes the user manual for the Standard Horizon HX300E portable VHF radio. Information regarding an SMA/BNC connector cannot be validated by the admissible source.

Interface functionality

The reference document provided contains no information on a connector or adapter. Therefore, this functionality description cannot be validated by the admissible source.

Documentation

Type	Nom
	EN - Manuel utilisateur - Standard Horizon HX300E
	FR - Manuel utilisateur - Standard Horizon HX300E
	FR - Manuel utilisateur - Standard Horizon HX40E

Expert opinion

« SMA/BNC adapter: The essential interface for extending the range of your portable VHF »

The Standard Horizon SMA/BNC adapter (STH-CN3) is a strategic component for users of portable VHF radios equipped with an SMA connector. Its primary function is to enable the connection of an external BNC-type antenna, effectively transforming a portable radio into a more powerful communication system.

This capability is particularly valuable in scenarios where communication range and quality are critical, such as offshore or in areas with weak coverage. By enabling the use of an external antenna (fixed or larger), it significantly improves reception and transmission—essential for maritime safety and operational efficiency. It proves most useful on vessels where installing a fixed VHF is not feasible or as a reliable backup solution.

From an installation standpoint, this adapter stands out for its simplicity. The threaded SMA connection ensures a mechanically robust and vibration-resistant link, crucial in a marine environment. The BNC side, with its bayonet locking mechanism, allows quick connections and disconnections of the external antenna without tools, offering appreciated flexibility to switch between portable and fixed configurations.

As an OEM part from Standard Horizon, this adapter guarantees optimal compatibility with the brand’s radios, such as the HX300 and HX280S models, ensuring superior signal integrity compared to many generic alternatives. Its design is specifically tailored to marine environment requirements, promising reliable connectivity even under adverse conditions. It is important to note that while it enhances connectivity, overall performance will still depend on the quality of the external BNC antenna used and its installation.

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SMA/BNC connector

15,83€

Frequently Asked Questions

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What is an SMA/BNC connector?

An SMA/BNC connector is an adapter that connects a device or cable with an SMA connector to a device or cable with a BNC connector, or vice versa. It ensures compatibility between these two types of coaxial connection interfaces.

Is this connector compatible with all Standard Horizon VHF radios?

Compatibility of this connector depends specifically on the types of ports (SMA or BNC) present on your Standard Horizon VHF radio and the accessories you wish to connect. This connector is designed to fit equipment with these interfaces. For precise compatibility, it is essential to check the port specifications of your device and accessories.

How do I install an SMA/BNC connector?

Installing an SMA/BNC connector is generally straightforward. The SMA connector screws firmly onto the SMA port of the device or cable, while the BNC connector typically attaches via a bayonet mechanism (push and turn) on the corresponding BNC port. It is important to ensure connections are tight to guarantee optimal signal performance.

What are the advantages of using an SMA/BNC adapter?

The main advantage of an SMA/BNC adapter is its ability to provide great connection flexibility between devices using different RF interfaces. This allows users to employ a wider range of antennas or accessories with their existing equipment, avoiding the need to purchase new equipment for each connector type.

Is this connector resistant to marine environments?

Specific details regarding resistance to marine environments, such as waterproofing level or corrosion-resistant materials, for this STH-CN3 connector are not provided in the product documentation. For use in marine environments, it is generally recommended to choose connectors specifically designed to withstand moisture, salt, and corrosion to ensure durability and performance.