Standard horizon hx400IS
The Standard Horizon HX400 series is a professional‑grade handheld VHF marine radio built for reliability, durability, and clear communication in demanding environments. Compact yet powerful, the HX400 delivers 5 watts of transmit power, loud audio output, and extended battery life, making it ideal for long days on the water. Its rugged design is IPX7 waterproof, ensuring dependable performance even in harsh marine conditions.
For users working in hazardous environments, the HX400IS model offers intrinsically safe certification, providing secure communication where explosive atmospheres may be present. Both models feature programmable channels, scanning functions, dual/triple watch, and intuitive controls for ease of use. Backed by Standard Horizon’s reputation for innovation and marine safety, the HX400/HX400IS is trusted by recreational boaters, commercial operators, and industrial professionals worldwide.
- Intrinsically safe (HX400IS only)
- Submersible IPX8 (4.92 feet or 1.5 meters for 30 minutes)
- Selectable 5 or 1 Watt transmit power output
- Noise Cancelling Microphone
- 40 Programmable Land Mobile Channels 134 MHz to 174 MHz with CTCSS and DCS signaling
- Programmable channel names
- NOAA Weather channels and Weather Alert
- Low battery indicator
- Built in Voice Scrambler for private communications
- All USA, International and Canadian Marine Channels
- Optional speaker microphones and headsets available
- Supplied with 2550mAh Li-Ion battery, and 110 VAC 3-hour quick charger
- Programmable Scan, Priority Scan, Tri-watch and Dual Watch
- Preset key used to recall up to 10 favorite channels
- Key lock
| GENERAL | |
| Frequency Range (MHz) | Marine Band/ WX Band: 156.025 MHz - 163.275 MHz LMR Band: 134.000 MHz - 174.000 MHz |
| Number of LMR Channels | 40 (Programmable) / Analog Mode Only |
| Channel Steps | 25 KHz (25.0/12.5 KHz LMR) |
| Frequency Stability | ±2.5 ppm (-30° C to 60° C) |
| Emission Type | 16KOG3E, 16KOF3E, 11KOF3E |
| Antenna Impedance | 50 Ohms |
| Supply Voltage | 7.4 V DC |
| Current Consumption | 320 mA (Receive), 50 mA (Standby) TX: 1.6 A (H) 0.8 A (L) |
| Operating Temperature | -30° C to +60°C |
| Waterproof rating | IPX8 (1.5 m for 30 minutes) |
| Case Size (W x H x D) | 57 x 133 x 40 mm w/0 knob & antenna |
| Weight (Approx.) | 350 g with FNB-115LIIS |
| TRANSMITTER | |
| RF Output Power | 5W/ 1W (@7.4 V) |
| Maximum Deviation | ±5 kHz (Wide)/ ±2.5 kHz (Narrow) |
| Spurious Emission | At least -36 dBM below |
| Microphone Impedance | 2 k-Ohm |
| RECEIVER | |
| Circuit Type | Double-Conversion Superheterodyne |
| Sensitivity | 0.25 µV 12 dB SINAD |
| Adjacent Channel Selectivity | 70 dB (Wide)/ 60 dB (Narrow) |
| Intermodulation Response | 68 dB (typical) |
| Selectivity | 12 kHz/ 25 kHz (-6 dB/ -60 dB) (Wide) 6 kHz/ 18 kHz (-6 dB/ -60 dB) (Narrow) |
| AF Output(Internal SP) | 700 mW @ 16 Ohm for 10% THD (@7.4 V) |
Standard Accessories in package
- Antenna, Belt Clip
- SBR-45LIIS Lithium-ion battery pack
- 220V Desktop Rapid Charger
- Operating Manual
- Programming inclusive if required
Optional Accessories
- CLIP-22 Belt Clip – secure carrying option
- SHC-18 Leather case with shoulder strap (Fits HX380, HX400, HX400IS)
- FNB-29LIIS Rechargeable Lithium-Ion Battery Pack (Old model)
SBR-45LIIS Rechargeable Lithium-ion Battery Pack - SBH-36 AC Charger Adapter – wall charging solution
- SAD-24 Power Adapter 220V
- E-DC-30 DC Cable – 12V charging from boat or vehicle
- CMP460 Remote Microphone
- MH-73A4B Submersible Remote Microphone
- SSM-14 Submersible Remote Microphone with ear jack
- Earphone/Microphone accessories – optional audio accessories
- CAT460 VHF Replacement Antenna – spare or replacement part
VARIANTS
- HX400 - Non Intrinsically safe



