Is it possible for digital television to receive an analog signal? It will, indeed. Through the use of RCA connections, digital televisions can still communicate with outdated VCRs. Your security camera should function similarly. While most modern cameras are designed to function solely with digital signals, some older models accept radio frequency (RF) broadcasts from remote control units or cable television providers.
Analog and digital signals operate on different frequencies. An RF modulator takes the baseband signal from your cable provider and mixes it with a high-frequency carrier signal from a transmitter to produce a new waveform that is radiated from the antenna of your cable box. This new waveform contains the information used to transmit audio and video signals into your home over the cable line. The only thing required to receive this signal is an antenna.
Digital signals are transmitted in short bursts called frames. These frames contain data that define how each pixel on the screen should be displayed. Each frame also includes a unique identifier called a header. This header provides the information necessary for your set-top box to process the signal and create a picture. Digital signals can also include sound data within the frame. This is done through the use of a technology called MPEG encoding. MPEG stands for Motion Picture Experts Group. This standard was developed as a method for compressing large amounts of video information so that it could be stored on conventional DVD disks.
The Digital to Analog converter box will receive the digital television signal and convert it to analog, allowing your analog TV to display digital channels. This works excellent, and you'll be able to use your old TV with new digital television signals instead of tossing it away when you buy a new digital set.
However, since both devices are converting between two different systems, there can be issues with this setup. If the digital signal is transmitting at a higher volume than what your analog TV can handle, it could cause damage to either device. To avoid this problem, make sure that your digital converter can handle the volume of the channel it is receiving. If it cannot, look for another model. Also, make sure that your analog TV meets the requirements for the type of connection it has (e.g., RF, Coax). If it does not, consider getting one that does meet these requirements.
So, yes, you can use an analog TV with a digital converter, but you should take care not to damage either device in any way possible. For more information on this topic, visit our digital converter product page.
External DTV converter devices are available for use with older TVs if you get TV programs through antenna. Even if your old analog TV is "cable-ready," you may now have to rent an equipment from your provider to convert digital cable signals back to analog. These devices can be expensive, so make sure you know what kind of signal your current TV receives before you buy one.
An external DTV converter device allows you to view digital cable programming on an older TV. The converter box connects between your home's coaxial cable and the cable company's equipment. It converts digital signals into an analog signal that your TV can understand. Most providers offer a selection of affordable models that you can install yourself. Before you purchase one, however, be sure your current TV meets the requirements for receiving digital cable services. Some newer models don't support all channels associated with traditional cable packages.
Digital cable service provides much more flexibility than traditional analog cable. With digital cable, you can watch any channel on any program guide screen. This makes it easier to find shows that interest you. And because each channel is transmitted using digital technology, you don't need a special receiver to watch television. Any standard definition TV will do.
Analog televisions may receive digital television (DTV) signals by purchasing a "Digital-to-Analog Converter Box" from a retail outlet. The DVCB can be used with certain set-top boxes that support digital broadcasting, such as Digital Cable and Satellite Service (DSS) receivers, or other compatible devices. There are several different formats for transmitting DTV signals including standard definition (SD) and high definition (HD).
Analog TVs will not be able to display any form of digital signal without first being converted into an analog format. This conversion process is called "upconverting" and it requires special hardware contained within the DVCB. Upconversion produces a crude image that lacks depth and detail but it can be viewed using low cost antennas. Modern digital TV broadcasts use MPEG compression technology which allows for much greater bandwidth than traditional analog broadcasts. With today's advanced DVCBs, you can upconvert these digital signals into the old analog format for use with older analog TVs.
The original broadcast of Star Trek was recorded on an analog tape recorder. When played back, this recording could be converted into the modern digital format for viewing on computers or other compatible devices.