So I've been looking at my different options for 6 meter mobile antennas.
My question mainly pertains to grounding. I've heard hams talk about needing a ground to the frame of the vehicle when using HF. I don't know if this is also important for 6 meters or not. It would be much easier for me to get a mag mount, but I'm unsure if the grounding will be good enough at 6 meters.
If I do go the mag mount way, there are two options I'm looking at: A standard 1/4 wave NMO or a DC grounded 1/4 wave NMO. The DC grounded one has a coil. I'm assuming this coil is going to ground because there is no need to load this antenna as it is already 1/4 wave long. This leads me to think that the DC ground is serving some other purpose. Could it be to help the ground performance on a mag mount? (This is what I'm hoping.)
If I do manage to ground the antenna properly, my impression is that 6 meters would be the apex of mobile communication. The size of the roof is very close to the right size for a ground plane on this band. In addition, the antenna is pretty much the largest without being loaded. Being in a hilly environment, I think this should be the best band.