john8848 @ Fri Nov 18, 2016 11:10 pm 写道: 这个特别是在手机没信号的情况下,突发情况下最好!
嗯, "阿妈脏":
https://www.amazon.ca/Standard-Horizon-HX851-Floating-Handheld/dp/B008F8YAK0/ref=sr_1_3?s=electronics&ie=UTF8&qid=1479553531&sr=1-3&keywords=standard+horizon+hx851Standard Horizon HX851 6W Floating Handheld VHF Radio - Product DescriptionBuilt-in 12 Channel GPS This advanced 6W FLOATING handheld VHF includes a 12-channel GPS receiver allowing the radio to
transmit a DSC distress, position report or send calls with your coordinates, perfect for everyday use or adding to your ditch bag.
Glow-In-The-Dark. Drop the radio in the water at night, no worries as the HX851 floats and case gasket glows-in-the-dark to assist retrieval. FLOATING - Submersible JIS-7 / IPX7 The HX851 has been designed from the ground up to be
completely submersible to a depth of 3.3 feet for 30 minutes, and it FLOATS! Navigate to Waypoints Standard Horizon has listened to feedback of the enormously popular HX850S and added navigation features which include Waypoint entering (store up to 200 waypoints), Navigation to a waypoint, Navigation to a DSC Position request to the HX851.
6W Transmit Power The HX851 is able to select 1W, 2.5W, 5W to conserve battery life or for maximum transmit distance the HX851 can be selected to transmit 6W. Work horse Designed to be a work horse, the HX851 includes 6 Watts of transmit power, die cast chassis, ergonomically shaped with rubberized armor for a non-slip grip and heavy duty belt clip. AC and DC chargers The HX851 is included with a desktop charging cradle and AC and DC adapters to charge when on shore or on your vessel. Preset Key Dedicated key that allows programming and quick selection of up to 10 favorite Marine VHF or
NOAA Weather channels. Digital Selective Calling (DSC) The HX851 incorporates DSC Digital Selective Calling including; Distress, All Ship Urgency and Safety, Group, Individual, Position request and Position report calls. Battery Life indication...