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01-09-2015, 02:49
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#121
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
I'm sending you my therapist's bill.
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01-09-2015, 03:02
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#122
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Certifiable Refitter/Senior Wannbe

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 7,689
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Re: OK, I am HF certified... now what?
If you end up going down the 802 with DSC avenue, you will need 2 HF antennas. The 802 uses a second antenna for the receive aspects of DSC.
Depending on the style of this antenna, it can serve as an emergency HF primary antenna.
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__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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01-09-2015, 03:13
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#123
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by Wotname
If you end up going down the 802 with DSC avenue, you will need 2 HF antennas. The 802 uses a second antenna for the receive aspects of DSC.
Depending on the style of this antenna, it can serve as an emergency HF primary antenna.
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I was very surprised when I read about this, but I can see how it makes sense to be able to receive DSC alerts even while you are transmitting. Perhaps I could hook the receive up to the wip?
I am curious about the practicality of the wip. The original owner swore by it, it was part of the dual MTUs and SWR meters on the original radio setup. But it was looking pretty ragged by the time we bought the boat, I think it had been sandwiched between a few jetty pylons and dock lines over the years.
More reading and learning to do, and I am currently chasing Foundation HAM certification, another thing to learn.
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01-09-2015, 03:21
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#124
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Moderator

Join Date: May 2012
Location: Copenhagen
Boat: Jeanneau Sun Fast 40.3
Posts: 5,001
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by GILow
I'm sending you my therapist's bill.
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So you're cured?
No more anxieties about cruising?
No more fear of mast coming down r anchors dragging or getting caught on a lee shore in a gale?
WOW! Must be some therapist
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I must go down to the seas again, to the lonely sea and the sky,
And all I ask is a tall ship and a star to steer her by
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01-09-2015, 03:32
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#125
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Certifiable Refitter/Senior Wannbe

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 7,689
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Re: OK, I am HF certified... now what?
Whips work...
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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01-09-2015, 03:33
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#126
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Registered User
Join Date: Aug 2013
Location: Somewhere in Patagonia
Posts: 4,343
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by GILow
I'm sending you my therapist's bill.
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Good luck with that
I've also lost a couple of whips..... Moonrakers out of Hobart
Well...one Moonraker really...
My one is in two halves.... one morning some years ago it was observed that the top half had gone walkabout... the AT-130 was still quite happy tuning the stump ... maybe 3 metres long... for sailmail traffic.
Replaced the top half...
5 or so years ago it failed ( fatigue) at the taffrail level.... so its now 18 inches shorter than what it was before...
Squid poles make good emergency whips - or even budget whips - but in a blow they bend quite a bit and can get shredded by the fan on your wind gen........
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01-09-2015, 03:57
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#127
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by carstenb
So you're cured?
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No, I decided to double all the dock lines and leave the boat in the pen.
This has the double advantage of being much safer AND making me just like 95% of the boats around me.
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01-09-2015, 03:58
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#128
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by Wotname
Whips work...
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Good to know.
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01-09-2015, 04:02
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#129
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by El Pinguino
Good luck with that
I've also lost a couple of whips..... Moonrakers out of Hobart
Well...one Moonraker really...
My one is in two halves.... one morning some years ago it was observed that the top half had gone walkabout... the AT-130 was still quite happy tuning the stump ... maybe 3 metres long... for sailmail traffic.
Replaced the top half...
5 or so years ago it failed ( fatigue) at the taffrail level.... so its now 18 inches shorter than what it was before...
Squid poles make good emergency whips - or even budget whips - but in a blow they bend quite a bit and can get shredded by the fan on your wind gen........
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Well, a couple of points of interest here. Moonraker is one of the brands I am considering, not for any particularly scientific reason, they just appear to be readily available and I am a bit parochial. Sounds like a robust enough bit of kit anyway.
Second, the AT-130 clearly works well.
Third, I must check the distance from the original mounting point to the wind gen, looking at some handy boat photos it seems adequate... but better safe than sorry. And some of the damage I was putting down to jetty pylons might have actually been the wind generator.
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01-09-2015, 04:05
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#130
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
P.S. Sorry about the repeated misspelling of Whip, spend too much time around accountants where wip is a common term.
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01-09-2015, 04:07
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#131
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Registered User
Join Date: Aug 2013
Location: Somewhere in Patagonia
Posts: 4,343
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Re: OK, I am HF certified... now what?
Yes , whips work.... when I had to trim my $$$$$$ Moonraker I found that it was essentially just an alloy stick under a 'rubber' skin... nothing fancy there. Make your own... an alloy pole that just needs insulated 'stand offs' to keep it from the taffrail and a hose clamp to secure the feed to it.... nada mas.
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01-09-2015, 04:15
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#132
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
Quote:
Originally Posted by El Pinguino
Yes , whips work.... when I had to trim my $$$$$$ Moonraker I found that it was essentially just an alloy stick under a 'rubber' skin... nothing fancy there. Make your own... an alloy pole that just needs insulated 'stand offs' to keep it from the taffrail and a hose clamp to secure the feed to it.... nada mas.
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That's interesting... I assumed there would be some pretty sophisticated windings of copper wire or something underneath the coating?
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01-09-2015, 04:26
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#133
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Certifiable Refitter/Senior Wannbe

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 7,689
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Re: OK, I am HF certified... now what?
Moonraker knows just exactly how much Al tube to use
Seriously Moonraker make good stuff but it isn't rocket science, just good and consistent manufacturing.
And some of the whip is merely supportive, not actively radiating.
__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
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01-09-2015, 04:40
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#134
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Bailing as fast as I can.
Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 3,607
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Re: OK, I am HF certified... now what?
I guess it would be hard sourcing good quality Aluminium with the right temper and flexibility, then getting the right amount of it to be tuned to the frequency range required.
They are a bit pricey, but I will trust them to do the homework.
Never resented paying for someone's good ideas and hard work.
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01-09-2015, 04:44
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#135
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Registered User
Join Date: Jul 2012
Location: Hobart
Boat: Alloy Peterson 40
Posts: 3,209
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Re: OK, I am HF certified... now what?
I got a very nice telescoping aluminium HF whip from an old handcrank lifeboat radio. Ping, you'll remember the type I'm sure. Never had to use it!
But I like the idea of something stashed below, if things go real pear shaped, that fancy whip on your stern is probably gone as well. But then that's the appeal of a satphone in a drybag...
It's so easy to get paranoid, my first proper offshore trip (nz to Tonga) all we had was an old 121 epirb, and a VHF. This was before the cospas sarsat system was around. If we got into trouble, the chances of an aircraft picking up our epirb before it went flat was remote. And one in a million chance of getting any medical aid in time to make a real difference to the outcome. Didn't seem to bother me back then.
How times have changed. Now the thought of not having any coms seems terrifying!
Sent from my HTC_0PCV2 using Cruisers Sailing Forum mobile app
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