Radio

based on eBay $50.00

For the most part they are not broadcast to the public on the radio. I am not aware of any that are. They are broadcast locally usually, and the signal is picked up within the facility or in its immediate vicinity for the benefit of those who are hearing impaired as well as those who have assignments and thus are not in a position to hear the program from the audience. The station(s) selected for the broadcast are those that are not being utilized by local radio stations, and thus would differ from one location to the next.

Should be unless it is some micro-miniature thing that is (shot-welded) at the factory and not intended for repairs by changing defective parts- rather like calculators and some forms of transistor radios using printed micro-circuits.

It is possible that you connected the power wire for the harness to the computer power. It was like that in my truck when someone did an at home addition of a wiring harness for the new head and changer. Check your wiring.

If you're trying to play homemade CD's burned on a computer, that's moste likely the problem. Many car stereos won't play them. If that's not the case, someone else will have to give you the answer. Good luck.

By varying the amplitude of a radio wave, you can encode information. That is how AM radio works. By varying the frequency (and hence its wavelength) of a radio wave, you can also encode information. That is how FM radio works.

A good graphical explanation is given at http://cbdd.wsu.edu/kewlcontent/cdoutput/TR502/page21.htm

There are actually FOUR properties. Frequency and amplitude have already been covered. You can also affect the phase of the wave; this isn't very popular because recovering it in the receiver isn't easy, but it's out there. You can also attach information by the presence or absence of the wave. This is how Morse code is sent.

I don't think that you can buy a new factory style radio as whats in your Dodge Spirit but you can get one out of a wreaked car at a junk yard that is like new... unless you mean like getting a CD player, in which those are everywhere... you can get a new CD player from Walmart for 50 plus the 8 dollar wiring harness to correctly wire it to the vehicle.

You need the ability to receive frequencies in the range of 800 - 1000 MHz.

When you start tuning that range, you'll start hearing things.

But only from cellular systems that are still using analog transmission. You can't

afford the hardware you need to eavesdrop on the digital systems, without some

serious government financial and technological assistance.

I think, it hasn't. Only the wiring harness has.

Well it's not correct. The Ford pigtail connectors has a part number.

Vision, microwave ovens, radio/TV, radiant heating, sunlight, radar, etc.

No but they do sell skipdr at walmart for 20-30$ by Anthony Ray Coleman

Justin Bieber.

The short answer is that a modem and a laptop computer are required.

Two popular amateur radio frequency networks are AIRMAIL and SAILMAIL.

AIRMAIL has many volunteer, land-based, radio stations all around the earth, that you can use to relay your signal into the Internet.

SAILMAIL has a smaller number, but they are also scattered all around the earth. Each is an automated system, kind of like a fax machine, or dial-up modem. You set the radio on the boat to the frequency of the station that you're trying to reach. You then send a digital message that you create on your computer and is translated, by the PACTOR modem, into a form that can be sent over SSB. Effectively, your system becomes a robot, that tries to communicate with a distant SSB station, which is also being operated by a robot. If they can get clear enough communication, there is some handshaking going on, where they establish what electronic language and at what speed they will use to communicate. If all goes well, your robot will send your messages, and ask if there any messages in the system for you, and download them. Depending on radio propagation and other kinds of interference, the system may work extremely well, poorly, or not at all.

Another very important reason to be able to use both systems, was that when we were crossing the Atlantic in the Summer and Fall of 2005, the propagation was very often not good enough for us to contact any stations at all in one of the networks. And frequently only one of the stations in the network that was functional for us. Since very few of our messages were of a commercial nature, we could usually use either system. This was a huge advantage, because, as I say, many times we could only establish communications with one station out of all the choices.

The science of radio propagation is very complicated, and even the experts disagree on some important aspects. But it is widely known that the the distance to the other station, the time of year, the time of day at your station and at the other station, sunspot cycles, interference from other stations and interference from things that are accidentally sending radio signals out, and countless other factors, decide whether you're going to be able to communicate are not. These two systems, are designed to be very robust, and to be able to communicate even under very difficult radio conditions. However, if communications are difficult it does make them even slower than they already are. Even at their fastest, under perfect conditions, this is a very slow system. Much slower than 56K dial-up. So the messages need to be very small files.

However, they can be extremely rich with information. For example, each day we would download a GRIB file. That is a compressed weather forecast file, that shows whether for the exact portion of the globe that we want, that is extremely useful. On occasion, we even sent and received tiny photographs. More like a thumbnail photo than a real picture.

Similarly you can use satellite phone to convey digital information from your boat to the Internet.

Each country has its own laws regarding licensing for amateur radio. Most require that you know quite a bit about technical things in order to get an amateur radio license, although it is getting much easier in recent years. That amateur radio license is required for using AIRMAIL.

Each country also has legal requirements for using radio transmitters on boats. You must satisfy those requirements order to use sail mail SAILMAIL. These laws are generally much easier to qualify for. You need a radio that is approved for use on the Marine SSB frequencies, and a ship's license and a license for the operator. These licenses are all often quite easy to obtain.

Using any of these systems is quite complicated to set up, and somewhat complicated to use. But after a few times, once you have all the bugs out of the system, it becomes quite easy. It is an extremely valuable communication tool.

Obviously it can be used for distress signals and to coordinate rescues, saving life and property. But, normally it is just a way to get on the Internet and conduct all of the many facets of daily life, that can now be done via the Internet, like sending very brief emails, transferring funds, ordering spare parts, coordinating rendezvous points with guests, etc.

However, it is very, very slow, and each network severely limits the amount of data that you can use in a given period of time. So, you do not do much recreational web surfing. You're just grateful to be able to accomplish the essential tasks.

In theory, it allows you to communicate, from not just a sailboat, but from any SSB transmitter, from anywhere on the planet. Expeditions and RVs, etc. use it. In practice, it is common to only be able to communicate, under good radio conditions, only at a certain time of the day. And even then the communication is often so tenuous, that it takes all the time that you are allowed by the network to communicate a very small and simple message.

AIRMAIL and SAILMAIL are by no means the only networks of this type. They're just the two that we use. I'm sure you can find many others with just a little bit of searching.

2004 GMC Envoy is on page 28 http://documents.victorytechnologies.com//documents/product/929.pdf 2004 GMC Envoy is on page 28 http://documents.victorytechnologies.com//documents/product/929.pdf

im trying to find out the same thing

where is the man radio fuses for 2001 Lexus Gs

operating systems

there are buttons on the face of the radio itself that are numbered 1 thru 5, and your car would have come from the factory with a 5 digit radio code, if you can locate the small book that is for the radio someone should have made a record of it on the inside cover, otherwise there is no way of putting the code in unless you already have the 5 digit number, the number was given to the original owner in the form of a card for a wallet from what I hear.

What kind of vehicle do you have?

a pain in the ass

Microwave is an electro-magnetic wave and travel at speed of light or 3x108 m/s.

the power switch in the radio is bad if you can find the power ant. lead coming out of the radio and apply switched 12 volts to it the radio will come on with the key. when you don't want to listen to it justturn down the volume I used to replace many of these switches in the mid 90's good luck

It depends on how many lines they have. The more lines, the faster they can be answered. If they have only one line, the DJ has to answer, hang up, wait for the line to reset and ring again before the cycle repeats....

all above plus digital modes and Morse code,

The Jodrell Bank Observatory