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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Problems\s+with\s+inv\s+L\s+on\s+pier\s+over\s+salt\s+water\s*$/: 6 ]

Total 6 documents matching your query.

1. Topband: Problems with inv L on pier over salt water (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 8 Jan 2020 12:06:54 -0500
I would like to share my experiences with 160m operations during the SP contest last December. My rental house in St George Isl FL had a 140 ft pier over the bay. Also a power line to the end of the
/archives//html/Topband/2020-01/msg00072.html (8,448 bytes)

2. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Cecil <chacuff@cableone.net>
Date: Wed, 8 Jan 2020 12:01:20 -0600
Im far from an expert but if you were over salt water I would have placed the counterpoise in the water. Id be curious what others think. Great experience though... Cecil K5DL _________________ Searc
/archives//html/Topband/2020-01/msg00074.html (9,428 bytes)

3. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Gary K9GS <garyk9gs@wi.rr.com>
Date: Wed, 08 Jan 2020 14:22:55 -0600
Hi Cecil,No...you don't want your counterpoise in the water. The reason is that RF does not penetrate very far into salt water.The only exception would be if the water was only a few inches deep like
/archives//html/Topband/2020-01/msg00075.html (10,368 bytes)

4. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Wed, 8 Jan 2020 15:41:46 -0500
There was a report from an expedition where the radials in water did not work well but over water did. Over salt water, one radial (counterpoise) is enough and more do not add performance. I used Exp
/archives//html/Topband/2020-01/msg00076.html (9,082 bytes)

5. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Grant Saviers <grants2@pacbell.net>
Date: Wed, 8 Jan 2020 14:58:16 -0800
Important facts about salt water are the attenuation of a wire submerged 10" at 1MHz is -87db and at 4S/m the conductivity is 10,000,000 times less than copper wire. Putting a single radial in a loss
/archives//html/Topband/2020-01/msg00081.html (10,880 bytes)

6. Re: Topband: Problems with inv L on pier over salt water (score: 1)
Author: Gary K9GS <garyk9gs@wi.rr.com>
Date: Wed, 08 Jan 2020 18:12:46 -0600
Thank you Grant...you said it better than I. The important thing is to keep the wire out of the water.Robert,If you were to use 1 or 2 radials suspended above the water, could you support the ends us
/archives//html/Topband/2020-01/msg00085.html (11,063 bytes)


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