Furuno 1st Watch Wireless Radar w/o Power Cable

Description

The Furuno DRS4W 1st Watch Wireless Radar is a 19-inch, 4 kW magnetron marine radar radome that sends radar video directly to compatible iOS devices over built-in Wi-Fi. Designed for compact helm, tender, and smaller-vessel installations, this wireless radar can connect with up to two compatible iOS devices and selected Furuno GP-1871F or GP-1971F chartplotters. This version is supplied without a power cable, so a separately selected 10 m, 15 m, 20 m, or 30 m Furuno power cable is required.

The DRS4W uses conventional pulse radar technology, not solid-state pulse compression or Doppler processing. It has a 19-inch, or 488 mm, radome, 4 kW peak transmit power, 7.2-degree horizontal beamwidth, 24 RPM rotation speed, and selectable range scales from 0.125 to 24 NM. The 36 NM value is an instrumented range scale; practical radar target detection varies with mounting height, target size, sea state, weather, radar settings, and local conditions.

Key Specifications

• Wireless 19-inch magnetron marine radar radome, model DRS4W.
• Provides 4 kW peak transmit power with conventional pulsed X-band radar technology.
• Uses a 488 mm radome with 7.2-degree horizontal and 25-degree vertical beamwidth.
• Provides selectable range scales from 0.125 to 24 NM with a listed 25 m minimum range.
• Uses a 24 RPM antenna rotation speed and requires approximately 90 seconds of warm-up time.
• Connects to up to two compatible iOS devices over 2.4 GHz IEEE 802.11b wireless LAN.
• Supports compatible Furuno GP-1871F and GP-1971F chartplotters through the required network arrangement.
• Operates from 12V or 24V DC at 2.1A or 1.0A maximum, weighs approximately 5.7 kg, and has IPX6 protection.

Radar Integration

The DRS4W is a radar scanner and requires a compatible iPad, iPhone, or supported Furuno chartplotter for radar display and control. It does not include a dedicated radar display, GPS receiver, chartplotter, heading sensor, radar mount, or power cable. A compatible radar application and supported device operating system are required for wireless operation.

Built-in Wi-Fi carries radar data between the scanner and compatible display device. NMEA 2000 is not used as the radar-video connection. Radar overlay and advanced navigation integration require compatible display equipment, GPS position data, heading information where applicable, and correct system configuration.

Installation Considerations

Mount the radome on a rigid platform with an unobstructed rotating area, practical height above the waterline, and alignment parallel to the waterline. Keep it above crew head height where practical and maintain the manufacturer-specified personnel safe distance and compass-safe distance. Route the separately purchased power cable away from heat, chafe, moving equipment, bilge water, and high-current wiring where practical. Radar installation and commissioning should be completed by a qualified marine-electronics technician.

Before Ordering

Confirm compatible iOS device or Furuno GP-1871F/GP-1971F display support, required power-cable length, 12V or 24V supply, available radar mounting platform, clear scanner rotation area, personnel and compass-safe-distance requirements, Wi-Fi operating range, radar-app compatibility, GPS and heading-source needs, optional radome mount, and qualified installation requirements before purchase.