WM-4 Receiver
About the WM-4 Receiver
Graphical information is overlaid on your charts so you can see weather and fishing info relative to the location of your boat. Plus you can access over 150 channels of SiriusXM entertainment at a discount when you add it to your subscription.
20.0 software update or later is required for WM-4 operation on these product families: Lowrance – HDS Live, HDS Carbon; Simrad – NSS evo3, NSS evo3S, NSO evo3, NSO evo3S; B&G – Zeus3, Zeus3S, Zeus3 Glass Helm, and Zeus 3S Glass Helm.
For warranty and additional information, visit navico.com.
Device features
Radar & Lightning
Radar is color-coded and shows precipitation across the contiguous US and Southern Canada. Cloud-to-cloud and cloud-to-surface lightning strikes are also provided.
Marine Zones
Select a marine zone to view the written NOAA forecast for that region. No need to wait for the VHF radio report.
Fishing Recommendations
Recommendations by fish species, using data-driven analysis from oceanographers, shown as color-coded ovals.
Sea Surface Temperature Front Strength & Plankton Front Strength
View SST Front Strength, which shows temperature changes that create distinct boundaries between bodies of water and attract bait fish. Strong or very strong Plankton Fronts illustrate areas preferable to game fish.
SiriusXM Marine plans compatibility
Marine Coastal
Marine Offshore
Fish Mapping
Marine Inland
Help and support
You've got questions?
IMPORTANT INFORMATION: The SiriusXM Service may include traffic, weather and other content and emergency alert information and data. Such information and data is not for "safety for life," but is merely supplemental and advisory in nature, and therefore cannot be relied upon as safety critical in connection with any aircraft, sea craft, automobile, or any other usage. SiriusXM is not responsible for any errors or inaccuracies in the data services or their use. Service not available in AK or HI.