operation of AM Radio Receiver?
99962
Cynthia you have to better frase both of your questions\nAs an electronic tech I would love to answer your Q
665056
The basic components are:\n\nAn antenna (to "capture" the RF signal)\nA filter (LC circuit to tune to the frequency of interest)\nAn amplifier (to amplify the weak signal)\nAn FM demodulator (to downconvert and "decode" the FM signal and get back the baseband signal which is what our ears interepret as sound)\nAnother amplifer (make it variable so you can change the volume)\nA speaker\nOh, and of course the power supply (battery) to bias all the active components.\n\nI know you asked for a wiring diagram...but maybe try purchasing each of the above components seperately as modules and put the thing together... just do a google search... but congrads for trying to build an FM radio... It shouldn't be too bad... Make sure you have a bread board....
279538
In general, a transmitted signal can be described as s=A*cos(omega + phi).  In AM modulation, you change the amplitude "A".  In FM, you modify the fundamental frequency, omega.  In PM, you modify the phase, phi.\n\nPhase Modulation is heavily used in digital communications.  Modems, satellite TV, GPS, and Wireless LANs (802.11a/b/g) all use variants of binary and quadrature phase shift keying.
98829
rf modulator.\nhttp://www.radioshack.com/search/index.jsp?kwCatId=&kw=rf%20modulator
63299
AM Stands for Amplitude Modulation and FM Stands for frequency Modulation. So in AM radio, the amplitude of the waves are changed while in the FM the frequency of the waves is changed. \nHence when the over riding of the waves is done, in an FM radio it is done in such a way that the frequency changes and the amplitude remains the same while in the am radio it is the other way round. AM radios have a shorter range!!
429859
Take a look at...\nhttp://www.ampercom.com/download/RScript%20User%20Guide%201.0.pdf
800644
You mean like a radio station? You can't really, Radio Station's  run their signals  on different frequencies then a wireless router.\n\nYou don't have the hardware to broadcast that high of a frequency not to mention modulate it. Like FM or AM..\n\nYou can do Internet raido..
273546
It depends on the type of system.  You have point to point, which is direct communications betweent two radio stations.  You have repeater operation, which allows two or more radio stations to communicate with each other through a third system, which relays transmissions over a single frequency pair.\n\nYou have conventional repeaters, or trunked repeaters.  Conventional systems work as mentioned above.  Trunked systems utilize several frequencies, controlled by computer.  Frequency pairs are assigned on a first come basis, and are rotated among all the radios on a system.\n\nRadio is not transmitted through a satellite, unless it *is* satellite radio.  Radio systems operate via a ground antenna system.
113619
You need to have a reciever on both. Then set it up on the computer from there.
339656
FM = frequency modulation.\n\nAM = amplitude modulation.\n\nwavelengths of AM radio are much larger than FM waves, which is why they are measure in kHz (compared to the MHz of FM). This is why AM radio signals are able to travel so much farther than FM signals. \n\nSince FM signals have much shorter wavelengths (and thus higher frequencies), the tuning needs to be more precise to pick up the desired signal, which is why an antenna is usually necessary.
734042
Try to watch here:\nhttp://www.radio-materiel.ch/new_design/radiomateriel/download/tps/tps.pdf
84334
See if your radio will take an external antenna.  If so, then grab some wire and string it around, and as high as you can.
583575
I assume you are talking about AM radio. If you are, there are actually three signals. First is the ground wave, which hugs the earths surface. The second one I don't remember, but the third one is the one you're thinking of. It is called "skip". "Skip" happens when the signal leaves the tower, goes in the air and bounces off the ionesphere quite some distance away.\n\nIf you notice, this happens with AM and not FM. FM is a line of sight signal that hugs the earth's surface until the signal reaches the curve in the earth's surface and jumps out to space. The funny thing though is that FM just keeps going and never comes back.
904718
Details about the AMR extension here:\nhttp://filext.com/detaillist.php?extdetail=AMR\n\nConverter available here:\nhttp://www.miksoft.net/mobileAMRconverter.htm\n\n.
1069107
Vaiccess1\n0E\n76  2E  9C  BB  B1  12  DD BE \nthis 1 for SF1/SF2 and TSI 1 / TSI 2\nON HOTBIRD  11525  // 27500  //   3/4\nand which model of receiver you has \nlet you know how u can decode?\nmashaykhi@gmail.com\ndeh_bakri@yahoo.com
400251
the signal applied to the antenna is in relation to groud. the signal spewed out by radio stations travels thru the air. and a very small signal is placed on the antenna in relation to the ground. the receiver circuit takes over from there. if you drive by a radio station you will see their big antenna very isolated from ground. to prevent arching. the signal coming from them is very powerful. \n\n                                  Greg..
197101
A simple radio system is the superhetrodyne receiver system.\nHetrodyning is the process of shifting in the frequency domiain.\nThe elements for transmission are signal source (microphone), Amplifier, Modulator, RF oscillator, RF Mixer, RF amplifier, Antenna.  \nThe elements for receiving are Antenna, RF Amplifier, Local Oscillator, RF Mixer, Filter, IF Amplifier, Demodulator, Amplifier, Speaker.