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WM-4 Receiver

Learn more about the Simrad, Lowrance, and B&G WM-4 receiver.

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Or call us at 1-855-796-9847

SIMRAD Lowrance B&G WM-4 Receiver

About the WM-4 Receiver


Boaters can subscribe to SiriusXM Marine satellite weather service to access up-to-date, detailed weather forecasts, weather radar, lightning, storm warnings, sea surface temperatures, and much more — all delivered directly to your WM-4 Satellite Weather receiver for B&G, Lowrance, and Simrad systems.

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.

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Get Fish Mapping

With the WM-4 and a compatible Simrad or Lowrance display you can subscribe to Fish Mapping – a plan including all of SiriusXM’s weather features, plus features to help you identify the best offshore fishing locations. Learn More

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

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Marine Coastal

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Marine Offshore

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Fish Mapping

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Marine Inland


Help and Support

Boat sailing on the water with the golden sun in the background

Send a Refresh Signal

Haven’t taken the boat out in a while? We can send a "wake up" signal to your hardware.

Refresh Your Hardware

Marine coverage map

Service Coverage Area

SiriusXM Marine service is available in the continental United States, southern Canada and coastal regions, up to 150 nautical miles offshore.

Explore the Coverage Map

Need some extra assistance?

Call 1-855-796-9847 or email for personalized help with SiriusXM Marine. You can also log in to your account if you have account specific issues.


Can I suspend my service when my boat is out of the water or not in use for a period of time?

You can suspend your SiriusXM Marine Weather service at no cost for up to 6 months when you are not using it by calling 1-800-985-9200 and asking to suspend.

Where does SiriusXM Marine Weather come from?

The Weather Company (formerly WSI), the industry-leading weather information supplier, is the source for SiriusXM Marine Weather. TWC combines NOAA data with information from other...

I live/boat in Canada - where can I purchase SiriusXM Marine weather service?

SiriusXM Marine coverage area includes southern Canada. Canadian residents can subscribe to SiriusXM Marine.

Are there any long-term subscription requirements for SiriusXM Marine Weather?

No. You can subscribe on a month-to-month basis. SiriusXM will bill your credit card monthly in advance, and you may cancel your subscription at any time. There will be a $25 activation fee when...

OFFER DETAILS: The SiriusXM Marine subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. Please see our Customer Agreement for complete terms and how to cancel, which includes calling us at 1-800-985-9200. All fees, content, and programming are subject to change.

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. Service not available in AK or HI.