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R/C toy car transmitter circuit

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by cyberquest, Apr 11, 2005.

  1. Roboticinfo

    Roboticinfo New Member

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    I have read the book personaly and it does seem to look like it will work and It does not require large amount of voltage and you don't need a licence's for certain country's, not mine at least.
     
  2. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    So what is the output power of the transmitter?.

    As you are in the USA, the FCC are strictly in control of radio emissions, I don't see how a 20 mile WiFi range can possibly be legal?.
     
  3. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Maybe there is a loophole in the law. If you have an array of many legal WiFi transmitters at home, then a huge lightweight dish antenna on the car can receive it 1500 feet away. A gyroscope in the car's antenna will keep it pointing at the array of transmitters. Since the car is a small toy, it won't be able to carry enough battery power to transmit back a signal to show where it is, you certainly won't see it so far away. Stand on the roof and use a telescope to see it. :lol:
     
  4. dave

    Dave New Member

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  5. indecided

    indecided Member

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    audioguru, very dry sense of humor you have!

    anyways, i'm sure he could put a PDA equipped with a camera, a 802.11b SD card transceiver on the RC, that would probably work! and all he needs next is a USB 802.11b reciever, and a frying pan streamer (refer below)...then you have a couple extra kilometers to work at. But let's not forget that is extremely directional... a couple degrees off and you lose all signal...

    http://www.usbwifi.orcon.net.nz/
     
  6. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Thanks Indecided,
    The Chinese "cookware" antenna did very well. It must be the chopsticks and bamboo broomstick that makes it work so good since they match very well. I notice that even the scientist-wannabees are Chinese.

    Maybe because they are in New Zealand it works good. Isn't everything upside down there? :lol:
     
  7. Roboticinfo

    Roboticinfo New Member

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    It is not ilegal over here, we have a city that offers Wifi for the city and it expand's to 80 mile's out I think, but we were the first city in the world to do this and only 2 people design this and own the company.

    it would work
    also I can't give any technical spec's on that book for as I don't own it, so it would not be of the top of my head.

    Sorry.
     
  8. cyberquest

    cyberquest New Member

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    R/C toy car transmitter

    It seems to me,ITS! That this forum is not about HELPING ONE ANOTHER. its about negative criticism towards the poeple who come to this forum for the information on there subject to be answered with positive abvise base on facts! Not somebodies own opinion. It just looks like bashing other peoples opinions on there view points, on this forum. I'm not bashing or criticizing anybody personality. its your advice and your own opinions that seem to be base on negative criticism form your selfs. And no real hard facts. IF anybody gives a commeted like.
    [/u][/list]
     
  9. Roboticinfo

    Roboticinfo New Member

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    We are giving you idea's, not bad comment's.

    Once in a whiled we are sarcastic but not in a nagitive way.

    We are all friend's on this website
     
  10. cyberquest

    cyberquest New Member

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    R/C toy car transmitter

    Nigel In the USA THE FCC does have a control on the radio,microwave, ect ect. electromagnetic emissions. And also would have in other countries like yours.Are you an expert on the regulatroy of the USA emissions how do you know what could and what can't be used in the USA there is a book that comes out every 2-3 years from

    the FCC regulated buy the USA govornment. this book is about 1000 pages long or more. have you read this entire book. In your country. this is what I mean about someone giving advise and having no real facts. on something he does not know or can know with out having those facts. this book is Federal and its a standard. But the states and towns in the USA have and make there own regulations and laws for that town or city this is call common laws in those towns or cities.But not every town uses this common law they use the federal standard laws. your countries laws are totally different in alot aways to the USA! If the law where GTAman lives states there is a 80 mile range for WiFi then it must be leg.Why would you disagree with his questioning on that law in his state. do you have documents on his state laws that is other wise differrent than what he knows. I LIKE TO KNOW WHAT MAKES YOU AND EXPERT ON USA LAWS.
     
  11. Roboticinfo

    Roboticinfo New Member

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    1. I did not state that every where is allowed to have a 20 mile Wifi range, but I did say in my area it is allowed, I never said I was a expert about the USA as for I do not really care.

    2. We are giving you idea's for your project, either to use WiFi or elec it is your chose to decide what to go with.

    3. I am not saying I am smarter then anyone in any categories I am giving a fact in my town. Also some people can't supply all the information, so there is no reason to crack down the people that didn't include all of the story.

    4. This is a site to relax and post any question's or answers you might have, not a place to release your negative comments.

    You need to reply a little nicer cyperquest, we are just giving you idea's
     
  12. cyberquest

    cyberquest New Member

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    I'am going to the websites where this person did build a 1500FT video transmitter. And it does work. because he as plans and the pictures on his website and all the details that you need. And if the person needs help. I and anybody could e-mail him for that help. or info. HOw does anybody know that this enable-transmitter WiFi devise does not work.DID any body read this book. buy this book (other then GTAman) or build this or see this devise work. I guest not bcause everybody is skeptical about this devise. maybe this works.And maybe it dosen't. BUT know one will know until you see for you selfs or build it. And if it does work by a computer on the internet this devise would go more than 20 miles as the book said.
     
  13. Roboticinfo

    Roboticinfo New Member

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    I agree with you there, know one know's if this device works. I just posted a book that stated it could go 20 miles I read the book and it seemed possible but it did not have a website were you could see this device working.

    You could go with other way's beside's Wifi but it might be a bit hard to get your range for what you want in my opinion.

    Hope you find what you are looking for on the web since this has not shown you what you wanted.

    Looks like you found better luck on a search engine,
    then that is the way to go.
     
  14. Roboticinfo

    Roboticinfo New Member

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    I am interested in that website, can you post the link?

    Sound's like something I can can use in one of my projects.
     
  15. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Re: R/C toy car transmitter

    I don't claim to be an expert on USA FCC regulations, but generally they are similar to the UK ones (although the USA is usually more lax).

    But I'm EXTREMELY sceptical about the regulations allowing licence free use of high powers in the WiFi band - the commercially available WiFi cards available (both in the UK and USA) are power restricted by the regulators, who are the FCC in the USA. If you were allowed 20 mile ranges, the cards wouldn't need to be restricted in this way.

    As a radio amateur, part of the exam we have to pass concerns regulations, and although it's been a long time since I took mine (and it wasn't in the USA) it still gives you a good understanding of the reasons and needs for regulation. Indiscriminate high power transmissions without a licence is always going to cause widespread interference to other users, and I can't see that the FCC (who probably police it better than the UK authorities?) are going to allow that.

    Perhaps you would care to post a link to the FCC documentation that gives permission for it?.
     
  16. cyberquest

    cyberquest New Member

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  17. Roboticinfo

    Roboticinfo New Member

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    Nigel, I herd this from a customer that came in and worked for a networking company and he said that a book came out that said it could go 20 mile's of WiFi range and I said "isn't that ilegal over here" no not here but in some town's there are strict FCC laws but here in this city it is not ilegal.

    I do not have any document of this but I know this guy and he doe's not lye.

    So I base my fact from that customer.

    Plus check amazon and check the review's for that book and see what they said.

    www.amazon.com
     
  18. Roboticinfo

    Roboticinfo New Member

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    Cyperquest so I over ranged the feet in a mile, that doesn't mean that I did anything wrong. If you look at a fact close enough sometime's you will find flaw's and it won't alway's be right.

    Take pills for instent's there are always is a flaw with the medicine, just like alot of the post's that get put on here.

    That is the way ths world works
     
  19. cyberquest

    cyberquest New Member

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    GTAman I think you took what I had to say in the wrong way. this was not towards you in any way.. Has a matter of fact this was towards other people who give advise or comments to this forum that they know notting about. this was not towards anybody personality. I think you miss understood me. that the USA comment was to someone else who thought he knows the USA laws. who told his opinion ABOUT you not knowing the WiFi law in you town. If you read it you would see I commented on this persons opinion about he mentioning comments what he stated on you view points. this was not any negative back talk to you. this was just positive advise of what you mention about the book and such. cyberquest.god bess
     
  20. Roboticinfo

    Roboticinfo New Member

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    Sorry, I did misunderstood and thanks for taking my back, you are a friend in my book.
     
  21. cyberquest

    cyberquest New Member

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    R/C toy car tramitter

    GTAman.also the last comment is my positive advise to you. NOT a negative back bashing in any way. Just tryin to help a fellow like you self went somebody thinks he is right in his comments or advise here on this forum. notting negative. Goss bess to all.
     

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