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Underwater Antenna Experiment


parkgt

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On 1/26/2023 at 5:23 PM, F350Platinum said:

My question is does the coax need to be stripped at all?

The shield needs to be removed. Also I see 3 different lengths of antenna offered by XP for sale. I think length is NOT a factor. Nice job. On another note, has anyone seen a clear cover for the WS6 master ? It’s my dirt diggin machine and I’m trying to keep the dirt and mud off. 

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13 minutes ago, Carolina said:

 On another note, has anyone seen a clear cover for the WS6 master ?

I had an old unused piece of IPad/iPhone screen protector laying around.  I just cut it the size of the screen area of the puck and stuck it on.  It has stayed well and protected the screen area; I know because there is one faint scratch in.  I can make many more out of a single cheap iPad screen protector.

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1 hour ago, Carolina said:

On another note, has anyone seen a clear cover for the WS6 master ?

https://www.ebay.com/itm/185643161995

Here's one, others are made in Ukraine. It'll probably take a while for someone in the USA to get on the bandwagon. 😡

I looked for one of those plastic bonnets they used to make for cat food cans, a clear one. I think they're passé. 😵

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11 hours ago, F350Platinum said:

Ok y'all, and my hat is off to @parkgt.

Low tide at the river, got up to almost 60 today.20230128_121032.thumb.jpg.728b06dceac2d84c8dd5ece54e0593bd.jpg

Went down to the river with the WS6 and the 9" to see if the cheap coax I got on Amazon would work without stripping it, but it didn't. Went back and stripped 31mm of insulation off each end, and cut the copper sheilding back. I stuffed one stripped end with the insulator still on under the puck using the handy slot in front. The rest goes through a hole I drilled in the Detecting Doodads adapter, and then down through the shaft, exiting at the coil. The CF lower for the 13" has an exit hole.20230128_145558.thumb.jpg.b9bf98c2c1ea3217f9d71ebb88a89c3b.jpg

The other end I shrink wrapped and zip tied over the transmitter bump. This is what it looked like before shrinkwrap:20230128_145702.thumb.jpg.d8f92f30bfc16724f28958349639a062.jpg

and after:20230128_151713.thumb.jpg.df2bc378db90816fe62d6d865791e09b.jpg

It works great.20230128_155152.thumb.jpg.c6ceded0a6b6a1df3d68bdf181b0a705.jpg20230128_151853.thumb.jpg.702ba393af5543017e219bf4806c2f9f.jpg

You can see here the coil is about 2 feet underwater, and it's still transmitting. 👍I can't imagine it would fail no matter how deep the coil went.

Wire length does not matter AFAIK, I ran just enough to reach the coil at a comfortable length, with slack for folding the coil. The wire slides out of the lower when it's shortened for charging. 🙂20230128_154747.thumb.jpg.3bc0c228bd1a6f27967a769c308e100b.jpg

Thanks also to @PimentoUK for the specifics.

 

Well done, F350, that looks great!

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8 hours ago, Carolina said:

 On another note, has anyone seen a clear cover for the WS6 master ? It’s my dirt diggin machine and I’m trying to keep the dirt and mud off. 

They are available from some UK dealers. Here's one:

https://spinadiscmetaldetectors.com/products/searcher-xp-deus-ws4-ws6-headphone-covers

 

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