Humminbird AS 21RD4KW 21" HD Radar

Humminbird AS 21RD4KW 21" HD Radar

Humminbird AS 21RD4KW 21" HD Radar

B&H # HUAS21RD4KW MFR # 408560-1
Humminbird AS 21RD4KW 21" HD Radar

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Expected availability: 2-4 weeks 
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Product Highlights

  • Up to 4kW Transmit Power
  • 4° Horizontal, 25° Vertical Beam
  • Adjustable VRM and EBL Functions
  • AIS and MARPA Tracking
  • Dual Guard Zones
  • Automatic Gain/Sea Clutter Control
  • Sector Blanking
  • True Palette
  • Zero-Latency Ethernet Connectivity
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You Pay: $2,199.99

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  • 1Description

The AS 21RD4KW 21" HD Radar from Humminbird helps you navigate through dark and foggy skies, busy shipping lanes, and less than ideal weather situations when used with a compatible fishfinder. The AS 21RD4KW can display a clear radar presentation or a chart display with radar overlay and target tracking. With zero-latency Ethernet connectivity, your compatible display will provide you with real-time target location and detection and long and short-range scales.

Dual Guard Zones
Establish up to two guard zones (sector or circular), and monitor any radar target within each zone.
Automatic Gain/Sea Clutter Control
See only what you need to with this dynamic filter that automatically or manually eliminates screen clutter caused by rain and sea returns.
Sector Blanking
Disable radar transmission over a defined arc to avoid the fly bridge area, or reduce reflections from fixed objects on your boat.
True Palette
View the relative density of targets in eight different colors using this presentation option.
Adjustable VRM and EBL Functions
Adjustable VRM (Variable Range Marker) places an electronic mark or ring over a target on your radar display, and an EBL (Electronic Bearing Line) displays your relative bearing to the target.
AIS and MARPA Tracking
Automatic Identification System (AIS) electronically exchanges data with other vessels, helping to avoid collision. Mini-Automatic Radar Plotting Aid (MARPA) allows you to select targets and track their cource, bearing, and speed, also helping to avoid collisions.
Compatibility
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ONIX10ci Combo
ONIX10ci SI Combo
ONIX10ci NT Combo
ONIX10ci NT SI Combo
ION 10
ION 12
858c Combo
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858c HD Combo
858c DI Combo
859ci HD Combo
859ci HD DI Combo
859ci HD DI Combo KVD
859ci HD XD Combo
899ci HD SI Combo
899ci HD SI NAV Combo
898c HD SI Combo
898c SI Combo
958c Combo
958c HD Combo
958c HD DI Combo
958c DI Combo
959ci HD Combo
959ci HD DI Combo
959ci HD XD Combo
998c HD SI Combo
998c SI Combo
999ci HD KVD SI Combo
999ci HD SI Combo
999ci HD SI KVD Combo
1158c Combo
1158c DI Combo
1159ci HD DI Combo
1159ci HD XD Combo
1159ci HD Combo
1198c SI Combo
1199ci HD KVD SI Combo
1199ci HD SI Combo
1199ci HD SI KVD Combo
In the Box
Humminbird AS 21RD4KW 21" HD Radar
  • 4 x Lock Washers
  • 4 x Flat Washers
  • Adapter Cable
  • 4 x M10 x 25mm Hex Metric Bolts
  • 2 x 8A Fuses
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Antenna Dimensions Enclosed radome: 19.7" (50 cm)
    Peak Power Output 4 kW
    Frequency 9445 +/- 30 MHz
    Beam Width Horizontal: 4°
    Verical: 25°
    Sidelobes Better than -20 dB
    Rotation 24 rpm
    Pulse Length Short: 0.1 uSec / 2000 / Hz
    Medium 1: 0.25 uSec / 2000 / Hz
    Medium 2: 0.5 uSec / 1000 / Hz
    Long: 1.0 uSec / 500 / Hz

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