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[HackNDos]

Well my GXM30 came with a mount bracket.  But were exactly does it attach to the zume bracket at? Anyone have a close up photo  of this they could share?

Yeah, I don't' want the puck on my tank.

Thanks
Paul

[Fired00d]

You can check this post/thread out for an aftermarket mount - ? on Zumo. I'm not aware of a mount that comes w/the antenna to mount on a motorcycle.

 
Ride Safe,
Fired00d
 

[HackNDos]

Thanks for the link. Looks like a mount made for the zumo.

Here's a pic of the bracket that came with my GXM30.  Almost like a screw into the dashboard mount.

[Fired00d]

That's called a "GXM 30 flange mount w/screws" not really sure what it's used for.

 
Ride Safe,
Fired00d
 

[rmsubs]

OK, being a communications tech in the Navy, I can tell you that XM is line of sight. In that you have to be in direct line of the satellite to receive the signal. Hence there is no satellite over Africa where I am now so even if I had a receiver I would not get any reception. But since it transmits in the EHF frequency spectrum I can tell you that it does penetrate porous substances like fiberglass or plastic. In fact on submarines our antennas are covered with a fiberglass dome to protect the actual antenna from sea water. So putting the antenna under the fairing should not cause loss of signal unless the signal was very weak to begin with. As with any antenna the fewer things between it and the transmitter is always better, so there is a slight increase in signal strength with the antenna mounted on top of the 550. I hope this clears things up.

[HackNDos]

I  made a small bend at one end of the flange mount to give it an almost 90 degree angle and screwed into the back of my mount using one of the screws that hold the zumo mount on.  The hockey puck is now parallel with zumo and secured on nicely.  Looks clean as well. Wish they made the antenna wire in different lengths though so i didn't end up with the coil of excess wire under it though. But hey, it's better than having it magnetically mounted to the tank.

Thanks for the input.

Paul

[sportygordy]

OK, being a communications tech in the Navy, I can tell you that XM is line of sight. In that you have to be in direct line of the satellite to receive the signal. Hence there is no satellite over Africa where I am now so even if I had a receiver I would not get any reception. But since it transmits in the EHF frequency spectrum I can tell you that it does penetrate porous substances like fiberglass or plastic. In fact on submarines our antennas are covered with a fiberglass dome to protect the actual antenna from sea water. So putting the antenna under the fairing should not cause loss of signal unless the signal was very weak to begin with. As with any antenna the fewer things between it and the transmitter is always better, so there is a slight increase in signal strength with the antenna mounted on top of the 550. I hope this clears things up.

I'm finding some of the new XM and Sirius receivers today require less line of site requirements. For example, my new Sirius Stiletto works with the internal antenna when mounted in my garage and my garage door is open. My old Sirius Sporty would not do this. Same thing is happening with a new Garmin GPS, I can mount it on the center console and it works fine were the older unit didn't do this. Not sure how the manufactures are doing this, perhaps they are now using preamplifier's to help out weak signals.