can someone explain to me plz. !

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can someone explain to me plz. !

Postby alec » Mon Aug 30, 2010 8:08 pm

Image

the Ross Revenge really seems to be a beautiful ship - well instead of its former big mast she now has 2 smaller antenna-masts.
But can please someone explain to me what the actual transmitting-antenne is and also what the other wires are for e.g. those 2 square (quadratic) frames ?

Thank-you in advance
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Postby Coastie » Mon Aug 30, 2010 8:58 pm

I THINK, it's the wires strung between the two masts. Anyway, take a good look at them, they're coming down shortly.
Last edited by Coastie on Tue Aug 31, 2010 12:52 pm, edited 1 time in total.
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Postby paulvos » Tue Aug 31, 2010 10:45 am

Alec, in many cases of AM antenna's, the tower is used to get the right hight, while wires hanging down from the top represent the actual active part. This is also the case on the Ross. When they lost the big tower, they had to improvise on the high seas and decided to go for the construction which was also used by Radio Veronica. It certainly looks less impressive, but it did give a reasonable output.
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Postby alec » Tue Aug 31, 2010 1:47 pm

paulvos wrote:Alec, in many cases of AM antenna's, the tower is used to get the right hight, while wires hanging down from the top represent the actual active part. This is also the case on the Ross. When they lost the big tower, they had to improvise on the high seas and decided to go for the construction which was also used by Radio Veronica. It certainly looks less impressive, but it did give a reasonable output.


thanks Paul - but what are these 2 square frames for - they don't look like stabilisers
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Postby paulvos » Tue Aug 31, 2010 2:05 pm

I'm not sure what you mean Alec, but if you mean the fact that below the horizontal stabeliser bar, you see two pilons next to each other, I read a remark by Peter Moore about it on another web site. It was apparently the decision of Peter Chicago to build the mast that way. They had received enough segments on board to rebuild the original central big tower, but Chicago decided it was too hard/dangerous to do this in open sea circumstances. He decided to go for very strong doubling the lower section as he had enough segments.

What the Caroline people are now planning is to take of the two low towers, because they are blocking hatches needed for fire safety and use the segments to rebuild the central higher tower.

There is some discussion now among Caroline fans. Some reason the two towers should stay as that was the status when the Ross came to harbour, while others prefer the central tower. At any case I believe it's Peter Moore's decision and he goes for the central mast.
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Postby alec » Tue Aug 31, 2010 2:11 pm

Wouldn't she look much nicer like this ?

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Postby paulvos » Tue Aug 31, 2010 2:28 pm

ABSOLUTELY. I thought it was only fair to mention both opinions, but personnaly I'm a fan of the central mast.
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Postby alec » Tue Aug 31, 2010 2:33 pm

paulvos wrote:ABSOLUTELY. I thought it was only fair to mention both opinions, but personnaly I'm a fan of the central mast.


yes but propably also much more dangerous for the stability of the ship and its static - but will the Ross ever go on High Seas again ??
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Postby paulvos » Tue Aug 31, 2010 2:59 pm

I know a big group of people that would like to know what you ask. My personnal belief is that the off-shore days are gone and will not return. If you see how BigL has to fight for listeners and income, off-shore would be even more expensive.

The central mast is pushing stability, but I believe the ship can handle it well like before.
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Postby Coastie » Tue Aug 31, 2010 3:12 pm

I have to say that I preferred the large central mast as she looked more "like she meant business". If she's not going to go to sea again, then stability shouldn't be too much of a problem. I was told by someone that there was a lot of concrete poured down below to counteract the large mast anyway. The removal of the two masts "because they are blocking hatches needed for fire safety" would suggest to me that perhaps a Surveyor has recommended that that be done. IF that is the case, then..........................!
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Postby paulvos » Tue Aug 31, 2010 3:16 pm

Yes Coastie I distictly remember Peter mentioning a surveyor, but he hastened to say this didn't mean...
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Postby Coastie » Tue Aug 31, 2010 3:31 pm

"Let us pray"!!! :lol:
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Postby alec » Tue Aug 31, 2010 5:16 pm

Okay Paul - maybe you know or some other technician on here. Do you really need diesel to run a transmitter on a ship - wouldn't solar-celles do it at least for - lets say 10KWs ? This way you could moore the ship a bit outside from a harbour (500mts) - reachable with a little boat - no diesel-costs , no pollution and easy to access ? - and above all no Tx-site problems. - Well it would need huge batteries to save for night-time though. - I don't think a wind-wheel would work - it would destabilize the ship rotating in strong winds...
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Postby alec » Tue Aug 31, 2010 8:22 pm

Watch the film on bottom of the page - its worth downloading it !!
pictures great - sound horrible
http://www.marinebroadcasters.com/mebo% ... bo%202.htm
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Postby scaniaman_dave » Tue Aug 31, 2010 9:22 pm

in the first picture the shape of the wires is called a diamond t lattice it is used as stay wires to hold the mast steady and also to mdulate the delivery of the signal giving a crisp clearer sound
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