Roger,

They way mine is installed is the base is secured to the transom
with a standard mounting, but there is a clamp on the side of the radar
arch that secures the lower portion about 6 feet above the base.
No problems with excessive movement in a seaway. If you don't have
an arch, them perhaps a couple of braces bay do the trick.

Doug
s/v Callista

"Roger" wrote in message
m...
Doug

What is the distance between the base of the antenna and the support
clamp. I only have about 3 ft. Does the antenna bounce around much in
rough seas.

Roger



"Doug Dotson" wrote in message
...
Roger,

We have the 23' whip and it works great. Also have a split
backstay, but since the whip was on the boat when we bought
it, I decided to stick with it. I'm not familiar with the 17' whip
you mention. It would appear to me that you may not be
abot to get good tuning acrosss the bands. The specs for the
tuner say that a 23' minimum length is required if I recall
correctly.

Doug, k3qt
s/v Callista

"Roger" wrote in message
om...
I am installing an Icom 802 ssb with a 140 tuner. I am looking for
advice/experience on the difference in performance between
Shakespeare's 17'6" whip vs. the 23' whip.

I have a sloop with a split backstay and probably will go with a
whip.I only have about 3' between the antenna base and the mounting
clamp on the transom. Insulating the backstay and running the feed
wire along the split (through the bimini) is my second choice.