Sites:
Home > Technical Library > Data Acquisition and Signal Conditioning > Data Acquisition Products > The Basics of Signal Attenuation

The Basics of Signal Attenuation

From CAS DataLoggers

Attenuation is a reduction of signal strength during transmission, such as when sending data collected through automated monitoring. Attenuation is represented in decibels (dB), which is ten times the logarithm of the signal power at a particular input divided by the signal power at an output of a specified medium.

Read the Whole Article
Products & Services
Data Acquisition
Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.
Chart Recorders
Chart recorders and strip charts are data acquisition tools used to generate a plot, graph or other visualization of data versus time.
Data Acquisition Computer Boards
Data acquisition computer boards are self-contained printed circuit boards that typically plug into the backplane, motherboard, or otherwise interface directly with the computer bus.
Data Loggers and Data Recorders
Data loggers and data recorders acquire digital data from sensors and other signals. They are primarily used to store data for subsequent downloads to a host PC, but may also include real-time features such as monitors and alarms.
Data Acquisition Systems and Instruments
Data acquisition systems and instruments collect, digitize, and process multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes.
Product Announcements
Teledyne Relays - New Attenuator Relay Design Improves Performance
The A152 attenuator relay design delivers excellent RF characteristics over the frequency range from DC to 5 GHz. Built-in functionality - A152 relays offer a normally closed low-loss, bypass path and... (read more)
TestPath, Inc. - Attenuators
TestPath, Inc. stocks an assortment of individual BNC, Type N and SMA attenuators as well as BNC and N Type attenuator kits. Attenuators are used in several applications, including simulated signal... (read more)
Knick Elektronische Messgeraete GmbH & Co. KG - The Art of Measuring
Knick is the market leader in many specialized areas of measuring and control engineering, for example, in the field of electrical isolation, process analytics, and loop-powered digital indicators. (read more)
Narda Microwave-East - High-Speed Switched-Bit 63-dB Attenuator
Narda introduces the Model DA64-63B switched-bit attenuator, which offers the high level of performance required in electronic warfare and radar systems as well as precision automated test equipment. (read more)
Topics of Interest

Overview Decibels are used to specify ratios of powers and voltages in a logarithmic fashion. Absolute levels can also be specified via suitable reference values. Decibels are commonly used for gain...

This is a practical book for use by technicians or engineers who need to know everyday radar equipment theory of operation and maintenance methods. It is not intended to be a source for a mathematics...

Absorption: The portion of optical attenuation in an optical fiber resulting from the conversion of optical power to heat; caused by impurities such as hydroxyl ions in the fiber. A/B Switch: A...

This chapter discusses frequency response in terms of both amplitude and phase. This topic will enable us to determine which frequencies are dominant and which frequencies are virtually suppressed.

1.3 Power in dB The term dB is the abbreviation for decibels. The main reason that dB is used is to enable the engineer to calculate the resultant power level by simply adding or subtracting gains...