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Old 08-02-2021, 15:22   #76
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Re: HF-SSB Radio, Proper Installation Tips/Techniques, etc.

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Originally Posted by Auspicious View Post
What you have is an inverted-L antenna. In principle quite a good antenna. It's one of the little spoken benefits of ketches and schooners.

Usually I've seen a mizzen shroud for the vertical and then the triatic for the more or less horizontal part.

I can put a test regime together for you to assure yourself that removing the triatic is counterproductive. There are also some calculations that lead to relative "goodness" for which I'll need the length of the insulated traitic, the length of the jumper, the length of the insulated backstay, and the length of GTO-15 feed line from tuner to backstay attachment.

I often miss PMs so just post here or email me dave@auspiciousworks.com . Happy to help.


73 es sail fast de dave KO4MI

Thanks for the quick response!


Thanks for the offer of the test regime. I passed your message off to my rigger and he should be able to get the measurements in a week or so (when the weather warms up a bit). I was going to just trust your opinion and keep things the way the are, but on second thought, it may be wise to let you know the lengths of the items just for your thoughts as to whether or not they are appropriate.



Just so you know, my plans are to sail from here in Vancouver down to Mexico and then eventually across the S. Pacific. I would like to be able to access the standard cruising nets and of course SAR if necessary. I have not messed around enough yet, to know what frequencies would be most important to me.


Denis

ps. Does that angle between the backstay and the triatic matter much? I can get the rigger to check it as well.
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Old 08-02-2021, 16:39   #77
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Re: HF-SSB Radio, Proper Installation Tips/Techniques, etc.

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Originally Posted by DenisHeinrichs View Post
ps. Does that angle between the backstay and the triatic matter much? I can get the rigger to check it as well.
It matters. Not much at the level of modeling I'm going to do. I can get close enough from the mast heights you posted.
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