wkearney99 wrote:
You can share an antenna, but it's not a simple splitter. The antenna is powered and you have to avoid there being more than one device trying to power it at the same time. Shakespeare makes a splitter that does this. I cannot recall the part number at the moment. I installed one in our 348. I now have both the Clarion Sirius module and the Raymarine weather module sharing the same antenna.
The connectors for this stuff are tiny. I don't know that I'd risk using something with them up on the helm, due to moisture and corrosion concerns. I guess you could, but finding a weather-tight setup for the wiring would be a bit tricky. Better to have it down below.
The way the Clarion gear is setup is as follows. The head unit (the radio) has a clarion network cable that goes to the sirius module. In my 348 the module is inside the cabinet next to the steps. Then the module has a small antenna connection to it. The clarion network cables can be pretty long. I don't know where the module is on your boat. On mine the cable appears to be a 12' long, but it's been bundled with a zip tie. The module is only about 3' from the radio. I added a splitter right there next to the module and mounted the raymarine module close by. The shakespeare kit came with everything necessary. I got it from Jim Maier at BOE Marine.
For your setup I'd wonder about how to set up a reliable connection to a portable unit. I'd want some sort of cradle that allowed a fixed connection to the wiring. Otherwise it'd be smart to use a bulkhead connector of some kind and with a short cable you can replace. That way you wouldn't risk ruining the whole cable if the end wore out or the cable broke due to handling. The type of coax used for this stuff is VERY hard to work on in the field. So plan on buying whatever lengths you need from a supplier that specializes in it.
The radio will be in the cabin, its a tiny thing that plugs into a cigarette lighter plug and there is an acc/lighter plug next to sink in the cabin about a foot from the head unit.
I ended up just using another antenna, costs like 13.00, and its easy to hide the wire (tiny) and it just mounts on the rail. I didnt want to share the antenna, the sat antenna on my boat is a small car-like one, not the larger round ones on a mast I have seen on other boats and I was thinking it had the same connector. If it was easy to get at I could get it to work most likely but I'm not pulling the fridge to get at it. I am using the factory sat antenna on my dodge truck, just had to modify the plastic connector a little. They all seem to use the same electrical connector, but the plastic that surrounds it is different depending on who manufactures the receiver.
I'm just being cheap, I have a lifetime subscription to XM on this little radio and I use it in my two cars, house and now boat
