Can the radio transmit and receive on channels 22A, 83A, 143.28MHz, 123.1MHz, 122.9 MHz, ALL 156-158MHZ, 2670KHz, and/or 2182KHz

This radio can only TX between 134-174 MHz. It comes with the 88 marine band frequencies built in and also allows for up to 40 LMR VHF channels to be programmed within this frequency band.

When the radio is in the desktop charger you cannot transmit while in the charger. you have to remove the battery to re-set it.

All I have ever done is remove from the charger & it works as it should. I have never removed the battery. Good luck, maybe contact Horizon of this issue?

What programming software should i use for the 40 lmr channels ? yce13 does not work.

YCE13 is for the HX380 & HX400 with firmware version 2.0 or later. The CE138 may work for your radio.

Can the radio receive on two channels simultaneously?

The radio can scan or dual watch a couple channels but no, it cannot receive two channels simultaneously.

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STANDARD HORIZON Hx400 W/スクラン＆LMRプログラマブルチャンネル内蔵

STANDARD HORIZON Hx400 W/スクラン＆LMRプログラマブルチャンネル内蔵

Product ID: 741990889

Details

Brand
STANDARD
Color
Black
Frequency Range
134 - 174 MHz
Item Weight
454 g
Number of Batteries
1 Lithium Ion
Number of Channels
8

🌊IPX8 Waterproof - Dive Ready

📡36 Mile Range - Stay Connected

🔋10H Battery Life - All Day Power

519494CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌊 Stay Connected, Stay Ahead — The Marine Radio That Works as Hard as You Do

LIGHTWEIGHT RUGGED - At just 454g, this black powerhouse balances portability with marine-grade toughness for professionals on the move.
DIVE READY DURABILITY - IPX8 waterproof rating means this radio thrives underwater, perfect for marine pros who demand reliability.
MARATHON BATTERY LIFE - Up to 10 hours of continuous use keeps you powered through long shifts or adventures without a hitch.
SMART CHANNEL FLEXIBILITY - Built-in Standard Horizon HX400 Scrambler & LMR programmable channels give you seamless, secure comms tailored to your needs.
EXTENDED COMMUNICATION RANGE - Talk up to 36 miles away—because staying connected on open waters isn’t optional, it’s essential.

The STANDARD HORIZON HX400 is a professional-grade marine radio featuring IPX8 waterproofing, a robust 10-hour lithium-ion battery, and a maximum 36-mile communication range. Equipped with built-in scrambler and LMR programmable channels, it ensures secure, flexible communication for marine and LMR users. Lightweight and durable, it’s engineered for demanding environments and extended use.

Specifications

ASIN	B004I8QU8Q
Additional Features	Submersible
Battery Average Life	10 Hours
Brand	STANDARD HORIZON
Built-In Media	Built in Standard Horizon HX400 Scrambler & LMR Programmable Channel
Color	Black
Compatible Devices	VHF Marine Channel, LMR Channel or Device with Compatible Optional Function Support
Frequency Range	134 - 174 MHz
Global Trade Identification Number	00788026165599
Item Weight	454 g
Manufacturer	Standard Horizon
Mfr Part Number	HX400
Model Number	HX400
Number of Batteries	1 Lithium Ion batteries required. (included)
Number of Channels	8
Talking Range Maximum	36 Mile
Tuner Type	VHF
UPC	788026123858 611104311703 053786300475 788026123841 788026165599 788026178698 796793922512
Unit Count	1.0 Count
Voltage	3.7 Volts
Water Resistance Level	Water Resistant
Waterproof Rating	IPX8

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