aerial mounts

I use an elevated feed with a spring base...can't say I have had any problems as you describe.

IMHO I would use a spring base aerial as this allows for aerial to take the vibrations and to move with them, rather than being solid and shaken loose.

Without starting an arguement on which brand of aerial is best - I use the Benelc brand that you by from Dick Smiths, Supercheap etc - they work for me.

I've had better service from spring bases rather than solid mounts. I have noticed that the rubber mounts tend to fail. I have an odd setup for my HF and it has a small whip on a rubber mount. I usually take a couple of spares as they seem to self destruct. I have never had a UHF base fall apart but any number of antennas have fallen apart or snapped. I chucked out the remains of 4 or five the other day. I think the base has an effect on the life of the antenna. A good spring base with a one piece wire or glass antena (GME) is what I have now and has done a lot of kms on corrugate roads. Not saying GME is the best, it is just what I am using. As an observation, different setups seem to do better on different vehicles. The old Jack had very high frequency vibrations and it snapped various mounts, even a Predator mount. The Cruiser seems to be much lower and as a result there seems to be less destruction.

Steve

Simple is best. A small 6 inch rubber stubbie aerial on a ground independant base on the roof. It works as well as a bullbar mounted aerial and survives the corrugations. I have fixed many of the elevated feed aerials over the years. The coax seems to come adrift where it slips into the base.