Transmitter Definition and 122 Threads

I have a question regarding those pre-made wireless ic's that are ready to use that you buy in pairs (one is the transmitter unit and the other is a receiver unit). Now I want to use this in a project where I take a signal that is split from my cable television line and send this signal to the...

supposedly u are stuck on an island battery died on your radio u have: 10 m of wire (copper?) and stuff found naturally on the island and u need to run a radio at 3 volts what would u do?:bugeye:

Hello , I searched online , but to no luck . can anyone help me with weblinks from where I can get MATLAB codes to design a transmitter and reciever in a communication system . Thanks in advance . NOname NOface .

So I'm trying to get my fm circuit to work. I've taken the design from the website below. http://cappels.org/dproj/FMdist/fmdis.htmhttp://img217.imageshack.us/img217/6839/fmdis3un4.jpg My current issue is that the circuit works, but only when hooked to a DC transformer. I get a signal of ~...

A scientist’s transmitter emits a wavelength of very long wave electromagnetic radiation. We call him One and he watches his wave move through the universe at c. Another scientist, call him Two, approaches One at very nearly c. Two moves directly at One’s wave and nearly dies of fright when...

Hi, I need to design an AM transmitter as a vlsi project (it needs to be located on smart dust later on). Does anyone have any good suggestions were to start from? I am familiar with vlsi, but don't really know how to implement such a big idea, into a vlsi simulation and circuit...

Hi all... I was looking over a simple AM transmitter from this website http://www.sci-toys.com/scitoys/scitoys/radio/am_transmitter.html I have attached the diagram as well. (The battery is a 9 volt battery, so I am fairly sure the "-9 volts" is a typo) I have three questions.. 1...

what is the highest attainable frequencie by an oscillator circuit? :confused:

Need some help getting started... Two radio transmitters are placed 50 m apart on either side of a runway. The two transmitters will broadcast the same frequency, but out of phase with each other. This will cause a nodal line to extend straight off the end of the runway. As long as the...

can anyone tell me how AM transmitter works?thanks

I am looking for a radio transmitter to transmit altitude. I don’t need one that comes with an altimeter. The altimeter will change in voltage as altitude changes, so the transmitter just has to transmit that data to a receiver. The transmitter must have a range of atleast 100 kilometers. It...

Hello, How can we convert parallel-to-serial address and send it as an optical signal? Have a look at the link below if you folks don't know what I mean - the last (3-4 lines) paragraph of the pdf file: http://www.hep.yorku.ca/menary/courses/electronics/3150/lab_manual/opt.pdf...

Hello all, I am an Electrical Engineering student and I currently building a small, simple, FM Transmitter. I would like to be able to simulate this in pspice but I have had no luck. I can get a sinusoidal output, and gain, but no Frequency Modulation. Does anyone know of a good pspice...

I want an AM Transmitter and Receiver circut.

I'm trying to design a simple circuit that will enable a magnet passing by an induction coil to send an IR pulse to a simple receiver plugged into a Linux box. This will be used to measure the speed of a turning wheel without having to worry about batteries or a power block of any sort. Any...

We were asked to make an educated guess of how the following would react - as transmitters, reflector, partial reflect, or absorder when a plate of the following was placed at a 45 degree angle as shown in the attachment The transmitter transmits microwves in a straight line and the following...

Hey i was wondering if anyone had any sites on how to build a Spark Gap Radio Transmitter, i need to do this for history to show how marconi invented the radio. Thanks- Andrew

About a week ago a big transmitter mast has fallen. The transmitter mast was about 100 meters high, is it possible to calculate how long it took before it touched the ground without knowing it's weight? The time starts as soon as the mast starts falling. I need the answer for my school exam and...

in one of my electronics classes, as a group we have to design and build a transmitter and receiver to transmit and receive morse code. we can only use a tesla coil and/or a spark gap for transmission. since we have 3 in our group... i am making the spark gap, someone else - a tesla coil, and...

Hello, I recently got some IR transmitter LED's and reciever LED with the ide of using them to make somewhat cheap remote control. whern I started to build it, I realized that I didnt know much about what was going on and how I should put it together, so I experimented with it a lot to figure...

I'm in IB math methods, working on a project and I can't seem to figure out what to do with this problem. A radio transmitter sends signals to a railway which run along a straight track. When a set of coodinate axes is used to represent this system, the transmitter is at R(1,0), and the track...

Hi! I am going to have a science exhibition in the first week of February and our professor has asked us to make a project (that works!). He wants it by mid-January though. Anyway I decided to make a transmitter and a receiver (like a transmitter and a radio). I saw the popular Rough Science...