Amateur Radio

my 2001 diamante radio wont turn on after i put the code in

I have a copy of the UK Scanning directory on CD-ROM (don't ask !) The only frequencies I have for Meadowhall are as follows:-

169.00000 Passenger Transport Interchange

453.47500 Debenhams Security

456.05000 Shopping Centre Maintenance

456.55000 Shopwatch

456.65000 Security Staff

460.15000 House of Frazer

Receiver incremental tuning (RIT)--A transceiver control that allows for a slight change in the receiver frequency without changing the transmitter frequency. Some manufacturers call this a clarifier (CLAM) control.

Ham radio can be an expensive hobby, but a far greater disadvantage is the fact

that it can be addictive. The addicted ham operator can become less sociable, and

can degrade his own health through the combined effects of excessive coffee, poor

posture, insufficient sleep, and poor personal hygiene.

In the defense of ham radio, however, note that the process of addiction requires

a certain willingness on the part of the addictee. And a review of dire consequences

listed above shows that there is nothing on the list that is unique to any particular

single obsession. As a random example, the same consequences could result from

an over-dedication to either ham radio or to WikiAnswers.

Take it from one who has known both.

The seed by the roots

WARC stands for World Administrative Radio Conference which is organised by the International Telecommunications Union. The conference sets up international agreements on the use of radio frequency bands.

One advantage of the 1979 conference was the allocation of new frequency bands for amateur radio use on HF. These bands are 30m, 17m & 12m and are generally referred to as the WARC bands.

A ATM is most likely a machine that produces money after a slot appeared. A technology of a ATM wasn't named yet

In the present day and age ... the middle of 2013 ... the telegram as a means of

sending text messages has several new and devastating disadvantages. It is now

virtually impossible to use a telegram, since there is no telephone number and no

office to give over your message, no network through which to transport it to its

destination, and no mechanisms to receive it or deliver it to the intended recipient.

Western Union in the U S, and the analogous agencies in other countries, recently

abolished the telegram, and no longer offer it as a service ... quite a significant

disadvantage to those wishing to send one.

Eeach VE's accreditation lasts until their FCC license expiration date.

Radiotelephone- that is voice talking ( called Phone for short) . The term , with the advent of cellular phones, which are in a very real sense radiophones- has engendered some confusion. Before their advent (Phone) in Amateur Radio use meant voice conversation- called Radiotelephone. The other major transmission mode was of course CW- Continuous Wave- that is, Code transmission- or radiotelegraphy. As of now, there are, of course , different types of licenses for Phone, and Code transmission. Prior to l992 there was an arbitrary Code test for ALL prospective amateurs. This ( Model T) requirement has been modified if one is using only Phone. Still there are the CW zealots.

Fail 5 means mean that the radio is not detecting the COMCSEC CCA. This is usually due to the radio's COMSEC knob being in the PT position.

never

Maximum power usage is defined by part 97.313 of the FCC rules and regulations governing Amateur Radio. For repeaters, maximum power is determined by the antenna's H.A.A.T. (height above average terrain). This can be calculated by using the FCC's online calculator at: http://transition.fcc.gov/mb/audio/bickel/haat_calculator.html

It depends on when the Volunteer Examineer Coordinator submits the information to the FCC and the number of applications the FCC currently is processing.

If it's a persons first license, the FCC trys to process those licenses faster than if it is an upgrade license from Technician to General or General to Amateur Extra.

Currently, I've been seeing about a 7-12 day turnaround from the time of the test.

Radio signals under 30 MHz (give or take) are reflected off the ionosphere back to Earth, whereas radio signals over 30 MHz (give or take) normally go straight through the ionosphere.

The maximum usable frequency (MUF) is the highest frequency reflected by the layers in the ionosphere. This frequency changes from day to night and with the seasons. It is also greatly affected by the 11 year sun spot cycle. Sun spots cause solar wind. This is a major cause for the ionisation of the ionosphere.

Depends on many factors. What frequency are you talking on, what are the atmospheric conditions like, how good is your antenna, are you sending code or trying to talk voice, how good is the other ham's receiver, etc.

I can tell you that when I first received my license in the mail, my first contact on ham radio was with a ham in Arizona. I was in San Luis Obispo, CA. He was running 1/4 watt of power, using Morse Code (or, CW, as we call it, for Continuous Wave).

There are hams that have talked with countries all over the world using less than 5000 watts of power. This question cannot be answered with a simple number - there are way too many variables involved. Here are some false ideas to take into consideration:

The more sensitive the receiver is, the less sensitive the transmitter must be to transmit a signal. The opposite is also true.

The lower the frequency, the farther the signal can travel due to the wavelength. Lower frequencies tend to be less stable than higher frequencies. Higher frequencies cannot transmit as far.

Answer:

Everything above is true but I would like to add that my stupid idea is that the antenna used for communication is the single most important part of a ham radio station. A poor antenna will waste power in itself instead of radiating it. (The polo something..... don't remember) is important. A gain antenna which is directional "like the ones you see on most ham radio towers" both transmits and receives "hears" in only the direction it is pointed greatly enhancing signal strength. If you have a thousand dollars to spend and you could buy a linear amplifier or a good antenna, buy a good antenna. You won't regret it. I have been non technical in my answer but there are tons of pages on antennas on the net as it is one of the most complicated subjects there is.

Let me expand on the top answer. The QRP group would insist that you can communicate all around the world on miliwatts. This is true, but not practical unless QRP (low power) is what you wish to do. The most common max power on a new radio is 100 watts, although some of the more expensive radios could have more. With the stock 100 watt radio, depending on atmospheric conditions, your antenna type, and the height of your antenna, you could talk to most all countries, but not on demand. What I mean by demand is that you can't control when you will make each contact, but each day, or night, you may contact some part of the world. Learning is what Amateur radio is all about. I suggest that you find your local radio club and go to one of their meetings. Once you introduce yourself, and express a desire to learn more, most hams will want to help you get started.

Let me add that

Atmospheric conditions are always changing, and we have some very good years for propagation, and some are pretty bad. We are coming down from one of the best years for radio wave propagation, and it will continue until propagation gets poor. That will take a few years ,and will be a slow process. As already stated, the antenna is 75% of a great station, with the radio being the other 25% It is true that you can use a linear amplifier to put out maximum allowed power, but putting that power into a poor antenna will be a big waste of time and money. The poor antenna will yield very poor reception, and even though the linear amplifiers will amplify reception as well as transmission, it can only amplify what it can hear. Very poor antennas can hear very little compared to the ideal antenna. If this all sounds like Greek to you, it is more the reason to join your local Amateur radio club and become well educated in radio use, antenna design, radio operation rules, and meet a lot of great people with the same interest. If we ever have a world war and it renders our normal communication methods useless, it will be radio Amateurs who will save the day with ingenuity that is MacGyver-ish in nature.

An opinion added by another contributor:

I strongly second the motion and support the statement that the antenna is

the most important part of the ham radio station, and if I could give it 18 more

votes then I would do that too. The reason it may sound like a stupid idea is

because it's such a simple statement of such profound wisdom. Are you trying to

tell me that a bunch of wire or metal rods or pipes has more effect on successful

communication than a big hot linear amp that goes for 5000 bucks has ? ! ?

Absolutely.

- - - - -

Five thousand watts? Legal power on the amateur bands IF you have an Extra-class license is only 1500.

If you're working Morse you can communicate with Japan on 5 watts or less if you have the right antenna and good atmospherics. It's been done with less than 1 watt and a good directional antenna with director and reflector elements. Voice you'll need more power, but 100 watts and a directional antenna will talk to anywhere in the world.

Speed, wavelength and frequency.

A grater (spelled like that, rather than greater) or shredder is a device used to make small strips of something solid. For example, if you have whole carrots and grate them (using the grater) you will get thin lengths of carrots.

The grater itself is usually flat metal with many small holes each of which has a "tooth" sticking up. As the carrot is run over the tooth, a little bit peels off and drops to the other side of the grater. These are now grated carrots, which are often used in salads or cooking.

There are different shapes of graters, including ones that are like a 4-sided tower with a handle on top. Each side has different size holes so you can get differently sized pieces at the end of your efforts. There are, of course, electric ones that are used in professional settings and an electric food-processor used in the home usually comes with several blades for this purpose.

The difference between grater and shredder is, as far as I know, a point of size. Cheese is a great example. If the end pieces are very small (almost crumbly) it is considered grated. If the end pieces are thicker and stay together when handled, it is considered shredded.

Hard to do. If your Ohmmeter battery is just 1-1/2 volts, then you simply put the test leads on the diode one way, then the other way. The way that show a meter reading will have the black lead on the 'cathode', if you assume, as most do, that electrons are issued from the " - " or 'minus' side of the battery.

BUT . . . if your Ohmmeter voltage is above the zener's trigger voltage, then you will get a reading both ways.

The material that is most usually used to stop radiation is lead. Lead is composed of large atoms, being a heavy element with a high atomic number, and it is therefore quite opaque to radiation of all sorts. There are many other heavy elements which can stop radiation, however, lead is the most easily available. You can use platinum as well, but it is thousands of times more expensive than lead.

Yes Ham Radio and Amateur Radio are same. Amateur and Ham radio operators use two-way radio stations from their homes, cars, boats and outdoors to make hundreds of friends around town and around the world. They communicate with each other using voice, computers, and Morse code. Some hams bounce their signals off the upper regions of the atmosphere, so they can talk with hams on the other side of the world. Other hams use satellites. Many use hand-held radios that fit in their pockets.

UHF is an acronym for ultra-high frequency. Frequencies in the UHF band (300 to 3,000 MHz) are/were commonly used for television broadcasting and such two-way communication applications as cordless phones and walkie-talkie radios.