History of RF Signal Generators

Radio frequency (RF) signal generators have been around for over 100 years. In 1901, Guglielmo Marconi performed the first radio transmission via Morse code from Cornwall, England to St. Louis. John's, Canada.

In the 1940s, Hewlett-Packard created the first mass-produced generator, the model 200A audio oscillator. The first customer for this product was none other than Walt Disney, who purchased eight of them to calibrate the revolutionary sound system developed specifically for the movie Fantasia.

Radio conductor use and development can be traced back to its roots in the electronic test-and-measurement industry.

Most Common Uses of Radio Frequency Generators

Although RF signal alternators pre-date modern digital technology, they are still used in a variety of tech and science industries in several different ways. Radio frequency signal producers are needed to operate, service and set up analog radio receivers. But it's more than that. When it comes down to it, any equipment that is radio operated required this kind of generator to fully test and ensure proper operation.

Some of the most common uses include testing components, test systems, and receivers for WiFi, WiMAX, cellular communication, GPS, audio and video broadcasting, radar, satellite communication and electronic warfare.

The ones that are used today can be found in the electronics industry, including aerospace / defense electronics and wireless communications. Radar, GPS and avionics signal simulation are other common applications within the aerospace and defense electronics field.

What is Radio Frequency Signal Generation?

Many times, radio frequency generation and microwave generation are used interchangeably. They are different, however, because they operate at different pitches.

RF and microwave generators have similar features and capabilities, but are differentiated by modulation range. RF generators typically range from a few kHz to 1 GHz, although some argument it reaches 6 GHz. The signal generation can be monitored with AM radio frequencies between 535 KHz and 1605 KHz and computer LAN rates up to 2.5 GHz.

Microwave frequencies, on the other hand, have a higher rate that typically ranges from 1 MHz to 20 GHz, with some generators reaching approximately 70 GHz.

There are three types of RF signal generators: analog signal, vector signal and logical signal. Analog generators were used before the advent of modern, digital electronics.

RF conductors are one of 5 types of generators. The other types are: functional signal, arbitrary waveform, audio signal and video signal. Each of them have their own, unique use and functionality.

How Radio Frequency Generators Work

Radio frequency generators operate via a harmonic locked loop that provides adequate, accurate and stable output required for a device to operate correctly. They produce continuous wave tones within a certain range.

These sound detecting devices have become very sophisticated since their creation 100 years ago. As they have gotten more advanced, their uses have become more widespread. They are one of five types of generators that are used in a variety of industries today.

Can Someone Find Me With Just My Phone Number?

Due to the fact that there are so many different online reverse phone lookup sites, and they have become very popular for tracing the owner of a phone number, you may be worried that your phone number may provide anyone who cares to use it with your personal information, such as your name and address. However, before you become overly concerned, you should know that the type of information that will be divulged to someone searching your phone number will likely be very vague.

What you need to understand is that how much information a person can find on you using your phone number depends on the phone number they are searching. For instance, if you have a listed landline number, a person who conducts a reverse phone lookup on this number will likely be provided with your name (typically last name and first name initial), address and location.

This should not come as a surprise to you, especially since this information would also be included in your local white pages. Your wire line phone number typically becomes part of the public phone directory, unless you personally request to have your phone number unlisted and removed from the directory.

Your cell phone number, on the other hand, is an entirely different story. If your cellular number is searched, the person conducting the search will not be provided with any real information that will be useful in finding you. The reason is because, the only clue they provided in relation to your whereabouts is your location. The state and city where you stay or are near will always be provided because this information is linked to the area code of the number. However, keep in mind that if someone is determined to trace you through your cell phone, they can pay for a more detailed search which may reveal your name and address.

What can you do to prevent people from finding you with your phone number? The following are two suggestions:

– Block your phone number, especially when calling people you do not know or trust, so that the Caller ID will not register who is calling. To block your number, dial * 67 before entering in the phone number you are calling.

– If you need to give a new acquaintance your number give your cellular number instead of your landline number because the cell phone is harder to trace back to you.

Finally, if you are very concerned about what personal information is made available to the public public, you should trace a cell phone number that belongs to a friend, or trace your own number to find out what type of information is provided.

How Heat Can Escape Your House and How You Can Prevent It

As the cold season approaches, energy bill goes up. This is mainly because of the need for heating systems on winter months. But not all the heat generated by your heating device stays in your house. Some, or in certain occasions, most of them escape from your house. As a result, your heating device has to work harder resulting in unwanted increase in energy consumption and cost.

This can be avoided by effectively seeking out the root cause of the problem, and dealing with them accordingly. Follow these simple do-it-yourself methods and save hundreds or perhaps even thousands of dollars on energy cost.

Doors and windows

Doors and windows usually have gaps and spaces on them where heat can escape. Although they may not be that much, if you consider how many doors and windows there are in your house, they collectively result in a huge loss which will reflect badly on you next month’s energy bill. A simple remedy to this problem is covering the gaps with curtains, drapes and/or sheets. You can also use rugs and door sweeps to cover the gap beneath your door.

Electrical and cable ducts

Electrical wires, telephone wires and internet cables and others of the like enter your house through holes and/or ducts. And through these channels, heat can escape. You can easily remedy this by installing outlet gaskets or stuffing the holes and ducts with certain materials such as foam.

Cracks, gaps and leaks

First, you need to find where they are, but looking for them just by sight can be very tricky. You can use a lighted candle and move it near suspect places. The flame of a candle is sensitive to airflow and will sway at the minutest air movement. When you see the flame swaying at a certain spot, there must be an air leak there. Once you have found the cracks, you can seal them by using a caulk. But make sure to apply it both on the inside and the outside.

Attic and ceiling.

A popular physics law states that “hot air goes up”. This is also true inside your house. The heat produced by your heater is likely to accumulate on the ceiling and you attic. This will only result in wasted energy because people don’t normally stay on those places. You can prevent this by making sure that the gaps and cracks to your ceiling and attic are sealed. You may want to check your folding attic stairs if you are using one. You can use weatherstripping and caulk to remedy the problem.

Heat only certain areas

You may ask yourself: “do you really need to heat the entire house?” Maybe there are areas in your house that are not frequented by people and do not need to be heated. If you can manage to limit the range of your heater only to places that are frequented by people, and avoid places such as hallways, storage rooms, attic, and others of the like, you can definitely cut down on your energy consumption cost.

Barriers to Communication – Why Communication Fails

Isn’t it frustrating when you tell something to someone, or email them about something, and they didn’t understand, or they don’t remember?

A barrier to communication appeared, and your communication failed. You told them, but they didn’t get the message or didn’t process it or take action on it the way you wanted.

When we speak or write, communicate, our message, what we are saying or meaning to say is not what is heard or understood. When you listen to someone talking or read what they are writing, you don’t necessary hear or read exactly what they meant.

The reason is that we all have filters in place – Kind of like a strainer that separates water from spaghetti noodles or a water filter that filters out all the particles we don’t want to drink. Our filters interpret the messages that we are receiving. This is true for the people we are communicating with as well.

All communication is filtered through past experiences, frustrations, and perceptions of the people communicating. On top of that what’s going on around you and the person you are talking with impacts how the message is received and what the message is received.

These filters act as barriers to communication. Some of the filters or barriers that can impact how your message is received and processed include:

  • workload
  • physical aches and pains
  • tiredness
  • distractions
  • family
  • culture
  • verbal and non-verbal cues, like tone of voice and body language

For example, it’s obvious that if you are trying to have a private conversation at a rock concert, that the noise is going to be a barrier. Well that same affect is true if the other person has a lot happening in their world at the time, or if they are tired or hurting, or if they come from a completely different culture than you do.

The words we use, and how we say them also make a difference in our communications. The way we are communicating certain words hold very different means. Take the phrase “I hate you”. Said in anger it is hurtful and inappropriate. But said in jest and with a smile, it is fun and a tease. So your tone of voice and body language give the meaning to the words.

In email, you lose the benefit of body language and tone of voice, so the other person has to completely run what you are saying through their filters and experiences to try to understand what you mean. Email leaves a lot of room for misinterpretation.

What I’m writing to you in this article is going your own filters – your past experiences, frustrations, and perceptions. And how you interpret what you just read just went your own filters. The same goes with every bit of communication you have with others.

By being aware of these barriers to communication or filters, you are less like to have your communication fail. If you consider the barriers that can arise and adjust your message for them, you are the road to effective communication with those around you.