Developed by the United States Power Squadrons, the world's largest private, nonprofit boating organization, Marine Amateur Radio is a complete guide to the use of ham radio for two-way and network communications among boats and between boats and shore stations. Briefly, succinctly, and clearly, thi...

This book is a complete guide to all forms of communication at sea. It examines the international marine use of cell phones, satellites, amateur radio, and email, cutting through the jargon and sales hype to enable readers to make the right choice for their needs. Comprehensive appendices on radio p...

This Russian Version,watch type fish finder is a combo unit that allows you to choose either Wireless fish finder user mode or Clock user mode. Detects both fish location and depth in both fresh and salt water. User selectable meter (m) or feet (ft) readings and °C or °F temperature unit. Display F...