HX255S - Marine VHF Radio Standard Horizon - Free user manual and instructions
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| Product Type | Handheld Marine VHF Radio |
| Brand | Standard Horizon |
| Model | HX255S |
| Category | Marine VHF Radio |
| Frequency Range | 156.025 - 163.275 MHz (VHF marine band) |
| Transmit Power | 5 W (high) / 1 W (low) selectable |
| Channels | 88 international marine channels |
| Weather Channels | 10 NOAA weather channels with alert and scan |
| Water Resistance | JIS7 / IPX7 submersible (1 meter for 30 minutes) |
| Battery Type | Rechargeable lithium-ion battery pack |
| Battery Life | Up to 10 hours (typical use, duty cycle) |
| Display | Backlit LCD with large channel indicator |
| Antenna | Fixed high-sensitivity helical antenna |
| Scan Functions | Memory scan, priority scan, and weather scan |
| Dimensions | Approx. 4.7 x 2.3 x 1.3 inches (120 x 58 x 33 mm) |
| Weight | Approx. 8.1 ounces (230 g) including battery pack |
| Cleaning and Maintenance | Rinse with fresh water after saltwater use and dry with a soft cloth |
| Safety Precautions | Do not transmit without an antenna; keep away from flammable vapors |
| Repair and Spare Parts | Contact an authorized Standard Horizon service center for genuine spare parts and repairs |
| General Information | Designed for reliable maritime communication and compatible with all VHF marine services |
Frequently Asked Questions - HX255S Standard Horizon
How do I turn on the HX255S and adjust the volume?
To turn on the radio, press and hold the POWER button until the display lights up. Rotate the VOLUME/SQUELCH knob (or use the corresponding buttons) to set the desired volume level. For best reception, adjust the squelch until background noise disappears.
How do I charge the HX255S battery?
Connect the supplied AC adapter or DC adapter to the charging cradle, then insert the radio or battery pack into the cradle. The indicator LED will show red while charging and green when fully charged. A typical charge time is about 3-4 hours.
Is the HX255S waterproof?
Yes, the HX255S has a water resistance rating of JIS7 / IPX7, meaning it can be submerged up to 1 meter of fresh water for about 30 minutes. Ensure all caps and connectors are tightly sealed before exposure to water.
What is the maximum range of the HX255S?
Range depends on antenna height and terrain. Typically, on water, the HX255S can achieve a range of 5-10 nautical miles at 5 W output. In urban or mountainous areas, range is significantly reduced. For best performance, use the radio with a proper marine antenna in a clear line-of-sight.
How do I select a marine channel?
Use the CHANNEL UP/DOWN buttons or the numeric keypad (if available) to select a channel. The HX255S supports all 88 international marine channels. Press 16/9 to instantly switch to the hailing/distress channels.
How do I use the weather channels?
Press the WX button to enter weather mode. The radio will scan through available NOAA VHF weather channels. Use the channel selector to choose a specific channel or press WX ALERT to enable automatic weather alerts that sound when warnings are broadcast.
How does the scan function work?
The HX255S features memory scan and priority scan. To start scanning, press the SCAN button. The radio will stop on any active channel. Priority scan monitors a designated channel (e.g., CH16) while still scanning others. Customize memory channels using the MEM button.
Can I use the HX255S internationally?
Yes, the HX255S is pre-programmed with international marine channels as well as US and Canadian channels. You can select the appropriate band using the setup menu. Always follow local regulations regarding VHF radio operation.
How do I maintain the HX255S after exposure to saltwater?
Rinse the radio thoroughly with fresh water, especially the external contacts and connector caps. Dry it with a soft cloth. Periodically clean the charging terminals with a dry, lint-free cloth. Avoid using chemical solvents or abrasive cleaners.
Where can I find replacement parts or repair service?
For genuine replacement parts such as battery packs, antennas, or belt clips, contact an authorized Standard Horizon dealer or the official service center. Repair should only be performed by qualified technicians to maintain safety and water resistance.
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USER MANUAL HX255S Standard Horizon
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Product information
Brand : Standard Horizon
Model : HX255S
Category : Marine VHF Radio