RE: 71 Percent Of Earth's Surface Is Water, Why Not Use It For Communications?
Many thanks @bitcoinparadise - as the son of a round the world yachtsman, I have keenly read, watched and listened.
I understand the applications of this - very short range. The curvature of the earth restricts the range. Submarine comms use half wave ultra-low frequency - hence the very high receivers. The technology here is a great idea, but why not use the electricity grid? Transponders all the way through a power grid could provide a similar service.
Ship to shore, where this is trying to be, would require a jet of enormous height to be able to provide comms at say 100 Nm. off-shore.
Pleasure craft usually get into trouble because power is down - back-up battery supplies are what you are suggesting. The best system of communication in these situations is morse code. An oldie but a goodie!
Upped an d followed. Namaste!
They specifically say this antenna was designed for HF, VHF, and UHF. I mentioned solar technology combined with battery backup can make it self sustaining. The use for this can be on land and on sea. Not really meant for underwater communications like submarines... Did anyone watch the video?
Submarines cannot communicate unless on the surface - it is also dangerous to do so as it betrays their position!
You don't need to be rude! It sounds like I know more than you. Did you read my comment?
What is the range? SHORT
But that's not what my post was talking about... You are talking about things that are a bit off topic. So how am I the rude one if you didn't really read and view the entire content?
Rude again. Why? It looks to me as if you have done a C&P and are now trying to defend an indefensible position. You should apologise for your rudeness, for your berating people for not watching the video, when they clearly had, as did I. You have berated people all through this and yet it is you who has missed the point. You have not engaged, you have simply tried to defend yourself for putting up a post which has technical elements which you, yourself, have not researched.
I did not say that I have sailed anywhere. I suggested a few ideas, none of which you have addressed, yet I addressed all of yours.
This is social media. This is not a collage class.
I expected better after a bright start. School report: could do better.
I would wager that you are younger than your years.
Again, I did not do anything.... you are the one accusing me that I am the one in the wrong and did something rude. I simply asked if anyone watched the video. All your questions and comments are in the video and the post. So if you are asking me questions that have the answer in the post, then you are not reading and viewing the content. So why should I have to apologize because you didn't bother to take the time to understand the information. The video and photos addresses everything you said. Corrosion?
So how can you tell me ,
In the video, you clearly see his testing it with a repeater tower that is 30 miles away. I don't know why you kept saying short range.
I have done research, you the so called non-sailor has apparently not. You comment like you would tell a doctor how to do their job, as if you know how to do it when you have not even gone to medical school. You are the rude one. Accusing me of being rude when all the answers to your questions is in the post.
Because the earth is an oblate spheroid and you tend to get waves at sea and what more can I tell you?The system is only any good for very short distances. If you had read my comment you would know that my father is a round the world sailor. Communication is sort of important. My suggested solution was satellite or drone for emergencies. You have addressed neither - maybe the earth is flat and the HF/VHF/UHF radio waves have a range of thousands of miles. You were rude. If you are unable to apologise for essentially calling me a liar when the fist line of my response was: "Many thanks @bitcoinparadise - as the son of a round the world yachtsman, I have keenly read, watched and listened."
Know your subject matter and don't be rude to people who engage with your post in an informed manner would be my advice.
When you stand on a beach, how far away is the horizon? Something you may wish to ponder. Sailors do it all the time.
when did I call you a liar? I asked if anyone watched the video? Just because you sail the world doesn't make you an electrical engineer. I am not either but I do have a degree in electronics so I am not talking about submarines or yachts, It's about a saltwater antenna that works, and is/already being developed. Mistubishi has made a small scale, and a large scale from the photo shown above. I did not say anything about this operating in low frequencies. So how is it only short distances if it can be configurable in frequencies? short range tends to be low-frequency, HF. With repeater towers can increase the range. If morse code is better for emergencies then why don't we use them now? This device is intended to be used above water and not on submarines. It takes more resources to use drones or satellites. So Why would I need to apologize for your stupidity?
This technology would require a fountain every 3Nm in order to be able to work at sea. The fountain could indeed use solar technology to power itself. The solar panels would need to be mounted upon a buoy which would need to be anchored to the sea bed.
The battery packs would need to maintained and the power supply monitored. As I said, I read, listened and watched with keen interest. I do not need to be told how to read, listen or watch. Why do you need to be so rude?
Morse code is better for emergency situations.
New technology is not the answer to everything. Sometimes learning the old stuff is more pragmatic.
Now, did you read my post? Answers upon using the power grid? Salt water is corrosive ... maintenance?
It is not all bad, in fact it is an interesting take upon hydrolysis concepts. There are flaws, though. One glaring omission, what strength of water jet would be needed to transmit to a satellite or drone transponder?
Why would you need one every 3Nm? It can be configured to use UHF and transmit to a repeater tower? The video shows that the water flow can be used in a tube. It can be sealed from being a messy thing. Yes salt water can be corrosive but this is still in development so the issues of corrosion could be solved. The costs of maintaining and replacing this type of antenna would be cheaper. It can use the grid but the whole goal is to run on alternative energy. This post is about an ANTENNA, and communications, not about a power grid. Once again, how am I being the rude one when you are talking about things not related to my post?
I am so sorry, what was your post talking about?