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Recent content by shokr

  1. S

    [SOLVED] making wireless communication between phones without using SIM cards nor internet.

    I understand well what a phone is, or you might say: very well. This is out of my choice, the project will work in a place where the phone signal might not be available all the time. Well, but I know how to to interface phones with microcontrollers and I was able to do what I want by meaning...
  2. S

    [SOLVED] making wireless communication between phones without using SIM cards nor internet.

    Well, but it is clear that, this will not work, because I chose the phones firstly because I can control and modify the received information and can use it in a special purpose program.
  3. S

    [SOLVED] making wireless communication between phones without using SIM cards nor internet.

    I want to make wireless communication between android phones without using SIM cards and without internet. I want it to be such that: ① it must be valid for more than 5 km. ② I need to receive the information at the second phone in a manner such that I can use this information in a Prearranged...
  4. S

    [SOLVED] I want a GPS receiver with this specifications

    Ok. ,if I face any problem, I will come back.
  5. S

    [SOLVED] I want a GPS receiver with this specifications

    In fact, I am not need it for displaying, but for giving this readings to a controller to do certain proceedings according to readings.
  6. S

    [SOLVED] I want a GPS receiver with this specifications

    This what I was searching for, if anyone know any module that can give more than 10 readings per second, it would be better.
  7. S

    [SOLVED] I want a GPS receiver with this specifications

    ① How to get the direction? because this idea will be benefit with distance only, for examble: Suppose at (T1 = 1 s) the the reciver send the position , then at (T2 = 1.25 s): we will see the speed of the car at this interval (V) by the speedmeter, then we get the the distance between (T1) and...
  8. S

    [SOLVED] I want a GPS receiver with this specifications

    Ok, I will think about it and try this idea.
  9. S

    [SOLVED] I want a GPS receiver with this specifications

    Could you explain that in more details?
  10. S

    [SOLVED] I want a GPS receiver with this specifications

    need a GPS receiver that have a high dynamic responce such that: If I am in a car that is moving by 250 Km/hour, this GPS receiver could show the position accurately at any moment. Are you know any product has this properties? Are you know any product has this properties and support...
  11. S

    Is this antenna impedance and tx impedance?

    Re: Is this antenna impedence and tx impedence? This means in the last circuit: which relation is correct?
  12. S

    Is this antenna impedance and tx impedance?

    Is this antenna impedence and tx impedence? In antenna theory: Zo represnts characteristic impedence of the transmission line. Well, what is Zin in the next law represnt? The resultant impedence of the transmission line and antenna or the total impedence of the transmission line only...
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