|
|
From: Peter Ogilvie (no email)
Date: Sun May 13 2007 - 05:43:33 EDT
So what is a verticle dipole??
We spent two years in SoPac with an insulated backstay fed by coax simply fixed ed to the SS wire with a common house type bronze cable clamp. Worked fine the whole time with contacts as far away as US East Coast and almost daily contact with the West Coast. Didn't try hanging another wire for the antenna so don't if it would have been an improvement.
Always wondered how we'd make out if we lost the stick and consequently the back stay.
Aloha
Peter O.
susan meckley <> wrote: It seems that almost everyone uses a back stay as a ssb
antenna....remember that steel, and even stainless steel is a very POOR conductor for
RF>
Instead, run a separate wire from the back of the boat up to the top
of the mast. Use this for you antenna, it is copper and is a GOOD
conductor. Yes, the other wire affrect it, but they do the same thing with
the backstay. PLUS...you can not solder copper to the stainless
backstay, so you use some sort of clamping arrangement, and every few months
get up there and renew everything.
Use a separate copper wire and never have to renew it.
I have been /mm for over 18 years now and have installed too many ssb
transceivers to count. I always use a sep. wire for the ssb antenna.
Just make sure that it is not in the arc of the swining boom.
While we are at it...remember a verticle diapole does not have to
have a good ground.
The /mm verticle is equally poor in all directions, or at least
almost equally poor. The fact that there is an ocean for a ground lets us
work out fairly good. But just think, with the verticle half wave
diapole....wow...look out dx. here we come.
Susan, W7KFI
USSV Dharma
enroute to Johnston,Majuro,Kwajalein,Rio,Tarawa...and who knows.....
If you don't change direction you will arrive exactly where you're headed!!
Susan Meckley, Skipper
USSV Dharma
---------------------------------
Be a better Heartthrob. Get better relationship answers from someone who knows.
Yahoo! Answers - Check it out.
[Non-text portions of this message have been removed]
---------------------------------
Bored stiff? Loosen up...
Download and play hundreds of games for free on Yahoo! Games.
[Non-text portions of this message have been removed]
|