General; Features - JRC JHS-431 Instruction Manual

1 General

The JHS-431 is an intrinsically safe 400 MHz band UHF 2-watt output maritime transceiver. It is
suitable for inboard, ship-to-ship, ship-to-shore, and pier-to-pier telecommunications in moving a
ship, loading or unloading, life saving, going alongside the pier, mooring, and so on.

2 Features

The JHS-431 offers a compact waterproof package that is easy to use. This radio keeps you in
contact in nearly any environment.
JIS Grade 7 Waterproof protection
The gasket sealed waterproof housing provides superior waterproof protection, equivalent to
JIS Grade 7*.
* Equivalent to IPX7 of corresponding international standard IEC 529 (1989). 1m depth for
30 minutes.
Built-in Tone Squelch
Use the built-in CTCSS capability to set up your own talk groups and quiet stand-by when
others are talking.
Intrinsically Safe
Intrinsically safe approved by the FM Global Technologies LLC, is suitable for use in
hazardous areas where flammable gasses or liquids are used. See specification page for
applied classes.
Li-Ion battery pack
The large capacity 1700mAh Lithium-Ion(Li-Ion) battery pack, BP-227AXD provides a
practical 10 hours* of operating time. Li-Ion batteries allow flexible charging and have almost
no memory effect.
* Typical operation Tx:Rx:Stand-by = 1:1:18
Compact body
56(W)x97(H)x36.4(D)mm compact body with durable, dependable construction, meets MIL
standard specifications.
Other features
Built-in audio compander
Only a few kinds of explosive gases and vapors are defined to be non-harmful to the
JHS-431. Do not use the JHS-431 in the presence of any other explosive or combustible
gas. It may cause an explosion or fire.
Powerful 2W output
DANGER
- 1 -
2 step power saver