to be above the water a
couple feet, taking into account waves and the tide. 73,Gary K9GS
Original message From: Grant Saviers
Date: 1/8/20 4:58 PM (GMT-06:00) To: Topband@contesting.com Subject: Re:
Topband: Problems with inv L on pier over salt water Important facts about salt
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 lossy medium doesn't work very well,
whether it is dirt or saltwater. Radials elevated in low
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 Expert 1.3k with a tuner. The amp turned itself off hundreds of
times over the past few years due to
PM (GMT-06:00) To: Ignacy Misztal Cc:
Topband@contesting.com Subject: Re: Topband: Problems with inv L on pier over
salt water I’m far from an expert but if you were over salt water I would have
placed the counterpoise in the water.I’d be curious what others think.Great
experience though
I’m far from an expert but if you were over salt water I would have placed the
counterpoise in the water.
I’d be curious what others think.
Great experience though...
Cecil
K5DL
> On Jan 8, 2020, at 11:07 AM, Ignacy Misztal wrote:
>
> I would like to share my experiences with 160m
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 pier raising questions about RFI.
I set inv L at the end of the pier with 40ft Spiderpole, 70ft
