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Topic: Spectrum analyser

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	FFT Spectrum Analyser
		This demonstration is similar to the FFT spectrum analyser demo applet.
		The difference is that instead of choosing the input signal to the spectrum analyser from a limited selection of waveform types, you can define your own arbitrary waveform by typing in the mathematical expression which describes the input waveform.
		The waveform generator is implemented in JavaScript and the sampled values of your waveform are passed to the Java applet, which plots the signal, performs the FFT calculations, and plots the frequency spectrum.
	www.dsptutor.freeuk.com /jsanalyser/FFTSpectrumAnalyser.html (0 words)

	Spectrum Analyzer - Microwave Encyclopedia - Microwaves101.com
		Some pulsed RF signal parameters parameters that can be determined directly on a spectrum analyzer include PRF (pulse repetition frequency), PRI (pulse repetition interval, which is the reciprocal of PRF), pulse width, duty cycle, peak and average pulsed power, and the on/off ratio of the modulator.
		A line spectrum (as opposed to a pulsed spectrum) is an actual Fourier representation of a pulsed RF signal in the frequency domain; all the spectral components of the signal are fully resolved.
		Using the pulse spectrum enables a wider resolution bandwidth to be used.
	www.microwaves101.com /encyclopedia/spectrumanalyzer.cfm (2434 words)

	Spectrum analyser software for the high frequency RF meter HF-Detector 3 PRO
		Spectrum analyser software for the high frequency RF meter HF-Detector 3 PRO
		Using one of the spectrum analyser software packages offered here, the signals can subsequently be visualized and analysed.
		This application is a very PROFESSIONAL spectrum analyser software with hundreds of extras.
	test1.contenttest.net /Spectrumanalyser-Software_en.shtml (251 words)

	Using a Spectrum Analyzer - Radio-Electronics.Com
		Spectrum analysers or analyzers are an invaluable item of electronic test equipment used in the design, test and maintenance of radio frequency circuitry and equipment.
		Thus a spectrum analyser will display the amplitude of signals on the vertical scale, and the frequency of the signals on the horizontal scale.
		The spectrum analyser operates by scanning the required frequency span from the low to the high end of the required range.
	www.radio-electronics.com /info/t_and_m/spectrum_analyser/spectrum_analyzer.php (1170 words)

	PC-Based Spectrum Analyser (Site not responding. Last check: )
		The spectrum Analyser displays the real-time picture of frequency spectrum of the input signal showing both vector components and their amplitude relationship.
		The Spectrum Analyser can be a very powerful machine without becoming a very expensive unit, as the power of the analyser comes from the Personal Computer algorithms, which can be enhanced without adding large amounts of hardware to the analyser.
		The spectrum analyser is inbuilt with a swept oscillator or a Tracking generaro which is a signal source, has an output whose frequency same as the swept frequency of the Analyser.
	www.angelfire.com /in/dgraj/spectrum.html (825 words)

	DesignContest.net :: Flash Tutorial- How to build an Audio Spectrum Analyzer v.2 ...
		Spectrum Analyser v.2 is a revised version which has a better performance then the one I published in flashkit, but the mechanism is the same in both tutorials.
		The spectrum analyser we are about to build here is NOT a realtime analyser, All the spectrum data are pre-recorded, processed and dumped into flash.
		Spectrum data is a row of numbers separated by commas, their value range from -199 to 0 which represents the amplitude of specific frequency bands, these numbers are recorded in a log file at predefined intervals.
	www.designcontest.net /tutorials/spectrumanalyser/index.html (1894 words)

	Pico Application - Pico - Spectrum
		Swept spectrum analyzers work by using one or more notch filters (or mixers) to measure the signal amplitude at a given frequency, by changing (or sweeping) the frequency of this filter a plot of amplitude against frequency can be constructed.
		Swept spectrum analyzers still have their place in high frequency spectrum analysis, but for audio work they have the disadvantage that the signal must be constant for the whole period of the sweep.
		Plotting such a frequency response is not possible with many FFT spectrum analysers as they take a quick snapshot of the signal then take several seconds processing and displaying the results, the result tends to be that only one frequency peak gets captured during the sweep.
	www.engberg.dk /pico/spectrum.htm (1103 words)

	Ferl - Spectrum Analyser
		Spectrum analysis involves breaking up a complex signal into constituent parts and, while the concept is fairly easy to grasp, the mathematics involved is relatively difficult.
		Enhanced interest in spectrum analysis and DSP within the Electrical and Electronic Engineering Department is evidenced by the number of student projects and the increased use of spectrum analysers in the curriculum.
		The Spectrum Analyser project concentrated on using existing equipment and on students and their requirements; it also recognised digital signal processing as an emerging technology.
	ferl.qia.org.uk /display.cfm?resID=1711 (882 words)

	Design of a Spectrum Analyser - Radio-Electronics.Com
		It enables the spectrum of a signal to be shown, revealing the presence of signals that may not be seen if other test equipment or measuring instruments are used.
		The spectrum analyser uses the superhet principle used in many radio receivers as the underlying principle on which its operation depends.
		Although the basic concept of the spectrum analyzer is exactly the same as the superhet radio, the particular implementation differs slightly to enable it to perform is function as a spectrum analyzer.
	www.radio-electronics.com /info/t_and_m/spectrum_analyser/spectrum_analyzer_design.php (1127 words)

	Ferl - Designing Spectrum Analyser Software
		Spectrum analysis involves breaking up a complex signal into constituent parts and, while the concept is fairly easy to grasp, the mathematics involved is relatively difficult.
		Enhanced interest in spectrum analysis and DSP within the Electrical and Electronic Engineering Department is evidenced by the number of student projects and the increased use of spectrum analysers in the curriculum.
		Using a software-based spectrum analyser, instead of a conventional piece of equipment, made it possible to export results directly to other computer applications such as word processors and spreadsheets.
	ferl.becta.org.uk /display.cfm?resID=1711&printable=1 (771 words)

	The simple man's Spectrum Analyser
		A spectrum analyser is a very useful piece of test equipment to have on your workbench, yet the price tag of commercially avialable analysers places them way outside most hobbyist budgets, even when 2nd hand.
		Construction and alignment of the "simple man's spectrum analyser" is as straight forward as possible.
		If the ten spectrum analyser modules are constructed in the suggested order (somewhat different to their logical order as in the block diagram), then each subsequent module can be built and tested using modules already constructed.
	www.hanssummers.com /electronics/equipment/spectrumanalyser (751 words)

	RF Trap With Attenuators circuit description (Site not responding. Last check: )
		It is particularly useful when the available spectrum analyser's dynamic range is inadequate to directly measure the very small harmonics required in modern 'digital' communication transmitters.
		Attenuators should be selected within the spectrum analyser to give less than -10 dBm at the input to the spectrum analyser input mixer stage when making the measurement.
		Either the combined attenuator insertion loss is used to calculate the actual level at the output of the circuit under test or the output is measured using the spectrum analyser offset facility.
	chemandy.com /writeup/single_pages/RF_trap_with_attenuators.htm (583 words)

	Spectrum : Software: Spectrum analyzers
		Axis Spectrum Analyzer - Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way.
		DL4YHF's Audio Spectrum Analyser - Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more.
		TCube - TCUBE is a combination of a Spectrum Analyzer and a Two Tone Generator, with optional quadrature outputs.
	www.dxzone.com /catalog/Software/Spectrum_analyzers (924 words)

	ALLEN & HEATH :: WORLD CLASS MIXERS
		The RTA consists of two main parts, the signal generator and the spectrum analyser.
		The spectrum analyser enables the engineer to examine the effect of loudspeaker characteristics and room acoustics on frequency response, helping identify frequency related problems so that the sound system can be equalised to compensate.
		The analyser produces an instantaneous graphical display of the frequencies detected by a microphone connected to the soundcard input.
	www.allen-heath.com /UK/ViewProductdownloads.asp?search=Real%20Time%20Analyser (160 words)

	Spectrum Analyser (Site not responding. Last check: )
		Spectrum Analyser is an application that shows the frequency content of the audio data currently recorded by the sound input device you select.
		Engineers and students who need a Spectrum Analyser in the audio frequencies can also plug a wire terminated audio jack in the microphone input and probe a circuit.
		Spectrum Analyser 1.1.2 can be downloaded from various public sites.
	www.gel.ulaval.ca /~jgenest/DaffySoft/SpectrumAnalyser/SpectrumAnalyser.html (486 words)

	Spectrum Analysers from SJ Electronics
		All the spectrum analysers that we supply are to the best possible standard and are completely reliable.
		The Rohde and Schwarz FS300 is a highly accurate spectrum analyser with a frequency range of up to 3GHz, also available is the Rohde and Schwarz SM300 3GHz R F signal generator.
		Whether you want spectrum analysers for on the lab bench, in service or a flexible measuring instrument in automatic production systems, we have a range of spectrum analysers to suit your needs.
	www.sjelectronics.co.uk /spectrum-analysers.htm (258 words)

	Satellite communication products - S+AS Limited - Internet Controlled Spectrum Analyser
		S+AS Limited introduces a Remote Spectrum Analyser system which can be accessed and remotely controlled over the Internet by multiple users using a secure connection and is designed to provide a complete uplink or downlink RF monitoring and reporting capability.
		The core analyser, from Morrow Corporation, when coupled with downconvertors, has the ability to accurately measure the complete KU, 10.7 to 12.75GHz downlink frequency band and the 13.25 to 18.5GHz uplink spectrum from single or multiple sources.
		One of the main advantages of the analyser is its ability to be operated remotely without compromising performance, usability or screen refresh rate using a variety of methods.
	www.sasltd.com /T/spectrum/index.html (1134 words)

	PROLITE-60 Optical Spectrum Analyser :: PROMAX ELECTRONICS T.+34 932 602 002
		Until the arrival of WDM systems, the spectrum analysers were basically laboratory equipments, non portable and high cost.
		By all it, the equipment for measuring, and more specifically, the spectrum analyser (OSA) that is oriented to applications in WDM networks, must be a portable instrument, robust, fast and easily of operating and with a moderate price.
		Based on a spectrum analyser platform, the PROLITE-60 allows to carry out automatic measurements in all the scopes of application,such as the analysis of the WDM signal in any point of the network or the characterisation of network components: Filters, amplifiers, multiplexers, DFB lasers, FB lasers and LEDs.
	www.promax.es /ing/noticias/extdnew.asp?text=99 (592 words)

	Flash Tutorial- How to build an Audio Spectrum Analyzer v.2
		For each bars in the spectrum analyser, lookup the corresponding amplitude value using result obtained in 3, and adjust the bar level with the value.
		It allows you to set the interval in miliseconds at which data is written to the text file and how many frequency bands you want to log and their amplitude range.
		Spectrum lab append data to the end of the file, so make sure the data file donesn't contain spectrum data from previous runs.
	mysite.wanadoo-members.co.uk /BBGorB/tutorial01.html (1875 words)

	The simple man's Spectrum Analyser
		This spectrum analyser uses an oscilloscope as the output display.
		All that is required is a simple low bandwidth oscilloscope that will be used as the display for the spectrum analyser, and a basic signal generator for testing and alignment.
		These are fixed to a single-sided PCB sheet ground plane which is bolted in turn to the aluminium analyser enclosure from Maplin Electronics.
	www.hanssummers.com /electronics/equipment/spectrumanalyser/index.htm (751 words)

	spectrum analyser (Site not responding. Last check: )
		The Spectrum fills a niche in the scientific (Spectrum analyser)
		The Spectrum fills a niche in the scientific community between refereed journals...
		The Servomex 1900 oxygen analyser uses a combination of intrinsic safety and a flameproof enclosure.
	chillweb.info /spectrum-analyser (1289 words)

	Boonton 9102 Spectrum Analyser (Site not responding. Last check: )
		The 9102 handheld spectrum analyser provides the excellent performance of a workbench analyser in a handheld form, at a competitive price.
		Typical measurements with with the 9102 Handheld Spectrum Analyser include transmitter testing, alignment of modulators and measuring switch breakthrough.
		We have tested the 9102 handheld Spectrum Analyser according to all relevant and applicable standard for bench and portable field measurement equipment against RF radiation, conduction, static discharge (EN 55022, IEC 61000-4) and shock steadiness (EN60068).
	www.sematron.com /page353.html (287 words)

	Spicer Consulting - SC11 Analysis System: Spectrum Analyser
		The spectrum analyser displays the waveform and spectrum of the required channel.
		In this case the spectrum is magenta, showing that the specification has been exceeded.
		Version 4.2 now allows a previously recorded spectrum to be imported as a specification, thereby allowing direct comparison with previous measurements.
	www.spicerconsulting.com /sc11spectrum.htm (383 words)

	Help with finding a satellite and using a spectrum analyser
		Spectrum analysers are similar to power meters in that they clearly show when you pass a satellite but they do not tell you the satellite identity unless you can recognise some of the carriers.
		The hub uses a spectrum analyser to look on the opposite polarisation transponder and tries to detect this carrier.
		If you have a spectrum analyser yourself you can often see cross polar interference rising up if you misadjust the feed rotation.
	www.satsig.net /spectrum-analyser.htm (1289 words)

	Spectrum Analyzer project. (W6/PA0ZN )
		I recieved an early version of a poor man's spectrum analyzer from WB2BQR as a test bed.
		Spectrum Analyzer, a very Nice, Complete and Clean approach by Low Cost Networking How to.
		Spectrum Analyzers from GlobalTestSupply.com, a supplier of refurbished electronic test equipment.
	www.nitehawk.com /rasmit/sa50.html (0 words)

	Homebrew spectrum analyser
		Spectrum analyser circuits usually show the 'scope's X input driven by a ramp but my 'scope doesn't have an X input!
		The analyser input is fed to pins 3 and 4 because they are DC-coupled to the diode ring.
		To match this filter's 3K-termination impedance, a 1K5 resistor was inserted in series with the filter input, and the value of R2 was increased to 2K7.
	www.holmea.demon.co.uk /SpecAnHtml/SpecAn.htm (0 words)

	Spectrum analyser - a reference guide from Electronicstalk
		We see from your search that you're looking for information on the term "Spectrum analyser", and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest.
		News on the Spectrum analysers from Rohde and Schwarz (November 2006)
		Spectrum analyser is a smart instrument (April 2006)
	www.electronicstalk.com /guides/spectrum-analyser.html (492 words)

	Introduction
		At the most basic level, the spectrum analyzer can be described as a frequency-selective, peak-responding voltmeter calibrated to display the rms value of a sine wave.
		It is important to understand that the spectrum analyzer is not a power meter, even though it can be used to display power directly.
		In this note, w shall describe the basic spectrum analyzer as well as the many additional capabilities made possible using digital technology and digital signal processing.
	www.spectrum-analyzer.info (383 words)

	The crazy man's Spectrum Analyser
		The Mk2 spectrum analyser is an attempt to resolve some of the shortcomings of the original simple analyser, improve performance, and add hosts of features.
		The digital sections of the analyser are built on 3 (currently) circuit boards sized 6 by 4 inches (15 x 10 cm).
		The backplane also temporarily accomodates an op-amp circuit used for conversion of analogue input and output to the Simple man's Spectrum Analyser, together with an 8-way DIP switch functioning temporarily as a "front panel", for selection of storage modes etc.
	www.hanssummers.com /electronics/equipment/spectrumanalyser2 (1328 words)

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