MA800 GPS Antenna for AIS Transponders
The MA800 passive GPS Antenna for AIS transponder (P/No. X500.391) is compatible with all current Digital Yacht AIS Transponders (AIT2000/2500/3000/5000/CLA1000/CLA2000). It is therefore an ideal replacement antenna for many makes of GPS receivers and chart plotters. You can also use it with the discontinued AIT250 and AIT1000. However, the physical size and shape are different from the original antenna.
The base can be removed for puck mounting or with the base fitted, it can be attached to any 1” mounting accessory (available separately) for pole, deck, bracket, and rail mounting.
It ships with a 33' cable terminated with a slim FME connector and FME-TNC adaptor.
Specifications:
- Bolt holes: 5/16" diameter, 3" x 1-1/2" on center
- Special cable slot thus eliminating removal of most factory-installed connectors
- Standard 1 in-14 thread (male)
- Stainless steel
- Heavy-duty construction


⚓ Smooth Sailing Shipping
Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).
We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .
🧭 Track The Voyage
You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.
🛟 Hassle-Free Returns & Exchanges
Returns accepted within 30 days of delivery. Items must be unused and in original packaging.
- Mistaken or damaged cargo? We’ll handle return shipping.
- Changed your course? Return shipping is on you.
- Report defects or damage within 7 days for a free exchange.
💰 Anchor Your Refund
Refunds go back to your original payment method within 5–7 business days after inspection.
📨 Contact the Crew
Questions about your order? Drop anchor at sales@marineelec.com .