Amateur Radio is a multi-faceted hobby. Communicating with other licensed amateurs using the HF High Frequency radio spectrum with their own private equipment is fun. These signals, under the right conditions travel around the world. No infrastructure, such as the internet is required. Achieving goals such as making contacts in all 50 states or multiple countries around the world can both be challenging and exciting.
Building and experimenting antennas and equipment are great learning opportunities. There are amateur radio operators in most countries of the world. Each country has their own licensing authority. An enjoyable facet of ham radio is talking to other amateurs around the world. Your call sign identifies your station and is used whenever you transmit a signal. It also gives you some idea as to what country the other station is located. Many people take a class, which is designed to assist students in passing the amateur radio examination. While most study 'solo' via book or website.
The examination is given by volunteer examiners winthin the ranks of amateur radio. There are many books and websites that offer help as well. You can click on these links for examples One is no longer required to learn Morse Code CW! Visit our test session page for more testing information.
Amateur radio has three levels currently available: Technician, General, and Extra class. The examinations are progressively more challenging and the operating privileges are greater at the higher levels. HF signals can propagate around the world using the ionosphere and add greatly to the enjoyment of ham radio. The Extra class has the maximum privileges including all amateur frequencies and all transmission modes.
Antennas are a topic of endless discussion. Almost any material that can conduct electricity can be used as an antenna.
It's just a matter of how well they work. Simple wire antennas at a proper height and cut to the appropriate length can radiate very well. Hams can and routinely do work DX distant stations with wire antennas that are difficult to spot among trees. Getting to know how they work and experimenting with them is a lot of fun. Also, a web search for ham antennas will result in many hits. The Amateur's Code : Some simple, common sense guidelines about operating.
Silicon diode D. Gain B. Forward resistance C. Forward voltage drop D. The Technician class amateur radio license test may include some schematic symbol identification.
Schematic symbols are standardized representations of components in an electrical wiring diagram. A schematic diagram gives an accurate representation of the way components are interconnected in an electrical circuit. It has nothing to do with the physical appearance of the components, the physical location of the components in the unit, or the wire lengths of components.
You do not need to learn how to actually read the diagrams but just how to identify a few individual components shown in the diagram. There are four different components in diagram T1 which you may be asked to identify. Component 1 depicts a Resistor while component 2 is a Transistor. Component 3 of diagram T1 is a lamp and component 4 is a Battery.
The function of a transistor is to control the current. Section D has a question that refers to T1 and if you remember that a transistor controls current and that component 2 on the T1 drawing is a transistor you should score on that question if you get it.
Just look at them and try to remember what they look like. It might help to draw the individual components and label them. Questions about four components from T2 appear in this section of the test question pool. They are as follows: component 6 is a Capacitor, component 8 is a light emitting diode, Component 9 shows a Variable Resistor, and component 4 is a Transformer. Component 3 of T2 is a single-pole single-throw switch but that question will not appear until the next section.
Notice the similarity between component 1 in the T1 diagram and component 9 in the T2 drawing. They are both resistors but the arrow shows in component 9 of T2 identifies that the resistance is changeable or variable which makes it a variable resistor or potentiometer. Diagram T3 only has two components to learn, component 3, the variable inductor notice the arrow again which designates it as variable or changeable and component 4 the antenna.
For information only and not on the test: Component 2 is a variable capacitor. Electrical depictions B. Grey sketch C. Schematic symbols D. Transistor C. Battery D.
Indicator lamp D. Lamp D. Regulator IC D. Inductor C. Variable capacitor B. Variable inductor C. Variable resistor D. Variable inductor B.
Double-pole switch C. T6C10 What is component 3 in figure T3? Connector B. Meter C. Variable capacitor D.
T6C11 What is component 4 in figure T3? Antenna B.
Transmitter C. Dummy load D. T6C12 What do the symbols on an electrical circuit schematic diagram represent? Electrical components B. Logic states C. Digital codes D. T6C13 Which of the following is accurately represented in electrical circuit schematic diagrams? Wire lengths B.
Physical appearance of components C. The way components are interconnected D. To provide the appropriate voltage for modern radio equipment the VAC standard household power must be reduced significantly. A transformer can be used to reduce the AC voltage.
SETTING UP AN AMATEUR RADIO STATION: Help For The New General Class Radio Operator eBook: Bob Patterson K5DZE: morrvitepalec.ml: Kindle Store. What are the most popular ham bands for a Technician class operator? What is right for my station setup may not be the same thing you want or need. if you want a good general idea of how to set up your first ham station then read on. Most new hams today are starting out in ham radio with a Technician class license.
A Rectifier changes alternating current into varying direct current signal. That varying direct current signal must be smoothed out but there are no questions in this section about components used to do that so I will not explain. Switches are necessary to turn circuits on and off or to change the function of a circuit. Some switches are operated manually as the Single-pole single-throw switch like the one schematically drawn in Figure T2 item 3.
Some switches are controlled by an electromagnet these switches are called relays. Visual display of operation in electronic devices may be as simple as a light or group of lights. The LED is commonly used for this type of visual indicator. Other times the visual display requires a movement or meter. A meter can be used to display signal strength on a numeric scale.