Raymarine GA150 External GPS Patch Antenna – 50-Channel GNSS | 10 m Cable | Flush or Pole Mount | RAY-A80288
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Better GPS Reception for Your Raymarine MFD — No New Sensor Required
The Raymarine GA150 is an external GPS patch antenna that improves the GNSS (GPS/GLONASS) reception of your Raymarine multifunction display’s built-in receiver. If your display is mounted below deck, under a hardtop, or in any location where the internal antenna can’t see enough sky, the GA150 lets you place a dedicated patch antenna in a clear, unobstructed location — and feed that stronger signal back to the display.
Unlike the Raystar RS150, which is a standalone GNSS sensor that replaces the display’s internal GPS, the GA150 works alongside the display’s built-in receiver — boosting its signal rather than replacing it. This makes it a simpler, lower-cost solution for installations where the display’s GPS is functional but underperforming due to mounting location.
The included 10 m cable gives you plenty of reach to position the antenna on deck, on a radar arch, or on a pole mount for the best possible sky view. Flush mount or pole mount options keep the installation clean on any vessel.
⚠️ Important: The GA150 requires the MFD’s internal GPS antenna to remain ON. It enhances the built-in receiver — it does not replace it. Confirm your display model is compatible before ordering.
Key Features
- 50-channel GPS/GNSS patch antenna — improves reception of your MFD’s built-in receiver
- GPS + GLONASS — dual constellation support for more satellites and better coverage
- 10 m cable included — plenty of reach for flexible antenna placement
- Flush or pole mount — clean installation options for any vessel
- Works with the MFD’s internal GPS — internal antenna must remain ON
- Ideal for below-deck displays, enclosed helms, and hardtop installations
Specifications
- Channels: 50
- Constellations: GPS + GLONASS
- Cable length: 10 m (included)
- Mounting: Flush mount or pole mount
- Compatible MFDs: Raymarine a9, a12, eS9, eS12 series
- Internal GPS requirement: Must remain ON
- SKU: RAY-A80288
Compatible & Related Products
- Raymarine Raystar RS150 External GPS/GNSS Sensor – 72-Channel | 10Hz | GLONASS — standalone sensor for Axiom/Axiom+ displays
- Raymarine Axiom 2 Pro 12 S Multifunction Navigation Display
- Raymarine Axiom 2 Pro 9 S Multifunction Navigation Display
- Raymarine A80701 External GPS Antenna 5 m Extension Cable Kit
- Browse all Networked Marine Electronics & Accessories
🔧 Parts Desk Insights
Best use case: The GA150 is the right solution for owners of Raymarine a9, a12, eS9, or eS12 MFDs where the display is mounted in a location with a compromised sky view — below the helm console, inside an enclosed wheelhouse, or under a fibreglass hardtop that attenuates GPS signals. It’s a cost-effective fix that avoids the need to relocate the display or upgrade to a newer MFD. The 10 m cable gives enough reach to get the patch antenna up on the radar arch, coachroof, or any clear deck surface where it can see the full sky.
Heads up: The GA150 is only compatible with the a9, a12, eS9, and eS12 MFD series — it is not compatible with Axiom, Axiom+, or Element displays. For those displays, the correct external GPS solution is the Raystar RS150, which connects via NMEA2000/SeaTalk NG and operates as a standalone sensor. The internal GPS antenna on your MFD must remain enabled for the GA150 to function — it boosts the existing receiver rather than replacing it.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.