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Subject: Re: [world-cruising] Re: SSB Antennas
From: barry (ozboats@XXX.XXX)
Date: Tue Apr 01 2003 - 01:09:51 EST
Time
I carry a 20' whip aerial in stowed sections in case the mast comes down. It is a racing requirement that you have an emergency antenna. However by using insulated wire I think I could attach it to jury rig in such a situation.
Barry
----- Original Message -----
From: thurley45
To: world-cruising@XXX.XXX
Sent: Tuesday, April 01, 2003 11:22 PM
Subject: [world-cruising] Re: SSB Antennas
Dear Barry:
Once again thanks. I'm going to give your method a try. It sounds
perfect for my needs and should be easy to remove when not in use.
I'll report back after I have a chance to test it out.
Regards, Tim
--- In world-cruising@XXX.XXX> wrote:
> Hi Tim
>
> That is why I use insulated wire. Even a plastic or ceramic
insulator is not much good if covered in sea water.
> Also My arrangement avoids connections that could corrode in salt
water.
> I have used this system on other boats
> After doing ocean races like the Melbourne to Hobart I have been
told by radio relay operators that our reports were some of the
easiest to hear during some roaring 40's storms.
>
> Barry
>
>
>
> ----- Original Message -----
> From: thurley45
> To: world-cruising@XXX.XXX
> Sent: Tuesday, April 01, 2003 12:14 AM
> Subject: [world-cruising] Re: SSB Antennas
>
>
> Dear Barry:
>
> Once again, thanks very much for your help. Your answers helped
fill
> in the gaps. I wonder if using an insulator at top and bottom
would
> help with the grounding problem when the wire is wet? Any
thoughts?
>
> Regards, Tim
>
>
> --- In world-cruising@XXX.XXX>
wrote:
> >
> > Hi Tim
> > Some answers
> >
> > >Do you use
> > insulators at the ends of the SS insulated wire (or just the
> dacron
> > rope)
> > Just the rope. It is a good insulator
> >
> > >and about what size is the wire?
> >
> > It was the type usually used for life lines (may be 3/16" or
1/4"
> with white plastic insulation.
> >
> > >Do you know if the insulation
> > affects the effectiveness of the antenna?
> >
> > Only in wet conditions. When whet wire will earth out and
send no
> significan signal.
> >
> > >Why did you use SS wire rather than copper? Was it for
> strength?
> > Yes. People have a habbit of swinging on things!
> >
> > > What did you use to connect the wire to the tuner?
> >
> > I criped a ring terminal to the wire that was then attached
to a
> screw fitting on the automatic aereal tuner I added solder to the
> crimped fitting. The solder may not have had much boding to SS
though.
> >
> > >I assume you use this setup while underway, not just in
port,
> right?
> >
> > I sailed from NY to Australia and used it nearly every day.
> > I recieved and transmitted OK from Tahiti to NZ and many
shorter
> distances. You have to use the correct frequencies for the time
of
> day though. Not much works around mid day
> > 15Mz for early morning and eventing. 4 or 6 MHz for night.
> > 4 MHz was OK for local nets with other cruisers.
> >
> > >And finally, what's a
> > GRP boat?
> > Yes. a 40 Irwin
> >
> > Pleasure
> >
> > Regards,
> >
> > Barry
> >
> >
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> >
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