1. Introduction
The Standard Horizon HX40 is a 6W ultra-compact marine handheld VHF transceiver designed for reliable communication in marine environments. Its submersible construction meets IPX7 waterproofing standards, ensuring durability. This manual provides essential information for setting up, operating, and maintaining your device.
Key Features:
- Ultra-Compact Design: Measures 2.05"W x 3.74"H x 1.3"D for easy portability.
- Waterproof Construction: Submersible to IPX7 standard (1 meter for 30 minutes), with floating capability when fitted with the optional SHC-29 flotation case.
- Powerful Performance: 6W transmit power output (selectable 6/2.5/1W) and 600mW loud audio output.
- Advanced Features: Preset key for 10 favorite channels, easy menu system, scanning, and Multi-Watch (Dual Watch and Triple Watch).
- Versatile Reception: NOAA Weather Channels with Weather Alert and FM broadcast radio receiver (76 MHz to 108 MHz).
- Integrated Battery: Supplied with an internal 1850mAh Lithium Polymer Battery Pack.
2. What's in the Box
Your Standard Horizon HX40 package includes the following items:
- HX40 Radio
- CAT460 Antenna
- 110v AC Adapter
- E-DC-19A 12v cord with cigarette lighter plug
- SBH-27 Charger Cradle
- SBH-19 Belt Clip
- Hand Strap
- Owner's Manual
3. Product Overview

The Standard Horizon HX40 features a clear display showing channel 16, power level, and battery status. Key buttons for menu, volume, clear, and 16/S quick access are visible on the front panel.
4. Setup
4.1. Antenna Attachment
Carefully screw the CAT460 antenna onto the connector at the top of the HX40 radio until it is finger-tight. Do not overtighten.
4.2. Battery Installation & Charging
The HX40 comes with a built-in Lithium Polymer battery. To charge the radio, place it in the SBH-27 charger cradle. Connect the 110v AC adapter or the E-DC-19A 12v cigarette lighter cord to the cradle. A green light on the charger indicates a full charge.
4.3. Belt Clip & Hand Strap Attachment
Attach the SBH-19 belt clip to the designated slot on the back of the radio. The hand strap can be threaded through the loop on the belt clip for added security.
5. Operating Instructions
5.1. Power On/Off
Press and hold the power button (usually marked with a circle and a vertical line) to turn the radio on or off.
5.2. Channel Selection
Use the up/down arrow keys to navigate through VHF channels. Press the 16/S button for quick access to Channel 16 (distress/hailing) or a pre-selected sub-channel.
5.3. Transmit Power
The HX40 offers selectable transmit power outputs: 6W, 2.5W, and 1W. Refer to the manual's menu system for instructions on how to adjust this setting to conserve battery life or maximize range.
5.4. Audio Output
The radio features 600mW loud audio output for clear reception. Adjust the volume using the dedicated volume buttons.
5.5. Scanning & Multi-Watch
Utilize the menu system to activate scanning functions, including Dual Watch (monitoring Channel 16 and one user-selected channel) and Triple Watch (monitoring Channel 16, Channel 9, and one user-selected channel).
5.6. NOAA Weather Channels & Weather Alert
Access NOAA Weather Channels to receive up-to-date weather information. Enable the Weather Alert feature to be notified of severe weather conditions.
5.7. FM Broadcast Radio
The HX40 includes an FM broadcast radio receiver (76 MHz to 108 MHz) for entertainment. Select this mode via the menu.
5.8. Water Activated Emergency Strobe Light
In the event the radio is dropped in water, its water-activated emergency strobe light will automatically activate to aid in recovery.
6. Maintenance
6.1. Waterproofing
The HX40 is built to IPX7 standards, meaning it can withstand submersion in 1 meter of water for 30 minutes. Ensure all covers and seals are properly closed before exposing the radio to water. For floating capability, use the optional SHC-29 flotation case.
6.2. General Care
Clean the radio with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners. Store the radio in a cool, dry place when not in use.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Standard Horizon |
| Model Number | HX40 (Manufacturer Part Number: HMA-STAHX40) |
| Dimensions (W x H x D) | 2.05" x 3.74" x 1.3" |
| Item Weight | 1.5 pounds |
| Transmit Power | 6W (Selectable 6/2.5/1W) |
| Water Resistance Level | IPX7 (Submersible 1m for 30 min) |
| Battery | Built-in Lithium Polymer (7.4V, 1850mAh) |
| Frequency Range | 156-162 MHz (Marine VHF), 76-108 MHz (FM broadcast) |
| Number of Channels | 128 |
| Special Features | Waterproof, Weather Alert, FM Radio, Water Activated Emergency Strobe Light |
8. Warranty & Support
The Standard Horizon HX40 comes with a 3-Year Waterproof Warranty. For technical support, service, or warranty claims, please refer to the contact information provided in your product's owner's manual or visit the official Standard Horizon website.





