MA800 GPS Antenna for AIS TranspondersThe 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 Specifications: Antenna Band: AIS Color: White Type: Antennas Box Dimensions: 2"H x 8"W x 9"L WT: 1.2 lbs UPC: 081159830373