
	Where results make sense

Topic: Independent sideband

Related Topics

single sideband

vestigial sideband modulation

vestigial sideband

independent sideband

Compatible sideband transmission

single sideband equipment reference level

vestigial sideband transmission

double sideband reduced carrier transmission

single sideband emission

double sideband transmission

double sideband

In the News (Fri 17 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Frequency Multiplication
		In a single-sideband transmitter (ssb), only one of the sidebands, the upper or the lower, is transmitted while the remaining sideband and the carrier are suppressed.
		In ssb the carrier is suppressed (or eliminated) at the transmitter, and the sideband frequencies produced by the carrier are reduced to a minimum.
		Independent sideband (isb) transmission is normally used to compensate for the deficiency.
	www.tpub.com /neets/book17/74a.htm (1151 words)

	[No title]
		Selective fading, or multipath, where one of the sidebands fades more than the other will only effect that channel that is associated with that sideband and will appear as reduced levels and equilization effects.
		During severe interference of one the sidebands and not the other the receiver can have a switch to select either the upper or lower sideband to reject that sideband which has the most interference.
		During mono broadcasts transmitting in only one channel suppressing the sideband that is interfering with an adjacent channel allows more power to be shifted to the other sideband increasing coverage area without increasing total power output.
	www.hal-pc.org /~jsgil/AM-Stereo/ISB.Txt (3844 words)

	Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power ...
		The average RF power output of an independent sideband diversity radio transmitter, modulated by a multiple tone data signal, is increased while the RF output peak envelope voltage is held constant.
		Combiner 20 combines the upper sideband signal from filter 18 with the lower sideband signal from filter 28 to produce a composite signal of the independent sideband variety.
		Applicant has discovered that in systems where identical multi-tone information, or its equivalent is transmitted on both sidebands of an independent sideband transmitter, shifting the phase of one of the tone input streams results in a signal which has the same informational content and average power but a lower peak voltage.
	www.freepatentsonline.com /5201071.html (3722 words)

	Independent sideband - TheBestLinks.com - ISB, Amplitude modulation, Mode, Modulation, ... (Site not responding. Last check: 2007-10-29)
		ISB, Independent sideband, Amplitude modulation, Mode, Modulation, Phase...
		Normally each sideband carries identical information, but ISB modulates two different input signals -- one on the upper sideband, the other on the lower sideband.
		ISB is a type of hybrid between double sideband (DSB) and single sideband (SSB), the other is vestigial sideband (VSB).
	www.thebestlinks.com /ISB.html (173 words)

	Independent sideband -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29)
		Normally each (additional info and facts about sideband) sideband carries identical information, but ISB (additional info and facts about modulates) modulates two different input signals — one on the (additional info and facts about upper sideband) upper sideband, the other on the (additional info and facts about lower sideband) lower sideband.
		If the sidebands are (additional info and facts about out of phase) out of phase with each other, then (Modulation of the phase of the carrier wave) phase modulation (PM) of the (A rack attached to a vehicle; for carrying luggage or skis or the like) carrier occurs.
		ISB may or may not have the (additional info and facts about carrier suppressed) carrier suppressed.
	www.absoluteastronomy.com /encyclopedia/i/in/independent_sideband.htm (141 words)

	Asymmetrical sideband transmission - Patent 4569073
		(d) means for attenuating the modulation level of one sideband relative to that of the other sideband which the higher level fed to the substantially flat separate (c) means and the weaker modulating level fed to the (c) means having the higher frequency accentuation, the combined modulating levels sufficient to provide relatively full modulation.
		(d) means for causing the ratio of the amplitude of the frequency components further from the carrier to the frequency components closest to the carrier of the weaker sideband to be greater than the ratio of the furthest to the closest components of the stronger sideband.
		The reason this is desirable is that the fact that little or no pre-emphasis was imparted to the stronger sideband significantly reduces the harshness of the sound perceived when a listener detunes a radio receiver towards the stronger sideband.
	www.freepatentsonline.com /4569073.html (3973 words)

	Communications Glossary (Site not responding. Last check: 2007-10-29)
		The phenomenon evidenced by the change in the observed frequency of a wave in a transmission system caused by a time rate of change in the effective length of the path of travel between the source and the point of intercept.
		The upper sideband corresponds to the sum of the carrier and modulating frequencies, whereas the lower sideband corresponds to the difference between the carrier and modulating frequencies.
		An AM method of radio transmission in which one sideband containing the intelligence is transmitted, but the other sideband is effectively eliminated.
	research.umbc.edu /~cellis3/glossary.html (5989 words)

	Transmitters and Receivers Glossary (Site not responding. Last check: 2007-10-29)
		(Independent Sideband receiver) is able to receive two separate signals, one on the lower sideband, the other on the upper sideband, of a common carrier.
		(independent sideband transmitter) is a form of DSB transmitter (double sideband transmitter) in which each sideband carries an independent baseband signal.
		(upper sideband receiver) is a form of SSB receiver (single sideband receiver) that receives signals modulated on the upper sideband of a carrier.
	www.argospress.com /Resources/transmitters-receivers (1718 words)

	PV78B convertor (Site not responding. Last check: 2007-10-29)
		output, to be used for reception of independant sideband and single sideband signals.
		The RA-98 can be used for a single sideband reception of double sideband transmissions, with the advantage of reducing the effects of selective fading.
		The ability to select either sideband is a useful aid in reducing adjacent channel interference.
	members.chello.nl /m.vanlieshout1/ra98_convertor.html (240 words)

	ISB - Wikipedia, the free encyclopedia
		Incredible String Band, a British musical group of the late 1960s.
		independent sideband - A radio modulation mode used in some AM radio transmissions.
		Institute for Systems Biology - a non-profit research institute dedicated to the study and application of systems biology.
	en.wikipedia.org /wiki/ISB (146 words)

	An Experimental Synchronous Detector (Site not responding. Last check: 2007-10-29)
		An independent sideband (ISB) signal can be detected with this detector by utilizing both outputs (IOUT, and QOUT) and passing them to a phase demodulation network.
		However, the upper sideband remains at the output of this summation and at twice its original amplitude.
		Thus the lower sideband appears on one channel and the upper sideband would appear on the other channel when applied to the input of a Stereo amplifier.
	home.worldnet.att.net /~wa1sov/technical/sync_det.html (1310 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		] Scattering of particles or photons in which the scattering elements act independently of one another, so that there are no definite phase relationships among the different parts of the scattered beam.
		] A model of an atomic system in which the electrons are assumed to move independently of each other in the average field generated by the nucleus and the other electrons.
		] A recoil mechanism for artillery that has an independent recuperator, that is, the recuperator is entirely independent of the recoil brake in the recoil mechanism.
	www.accessscience.com /Dictionary/I/I6/DictI6.html (1965 words)

	Montauk Project review by Michael Topper (Site not responding. Last check: 2007-10-29)
		The Delta-T receivers were provided with outputs from an independent sideband detector, equipped with oscillator and floating carrier reference system.
		Independent corroboration of an alien presence surreptitiously associated with Project Rainbow may be found in the Wurlitzer-authored Philadelphia Experiment, wherein interviewed survivors recall a foggy limbo-like state while in hyperspace suspension, through the mists of which alien beings appeared of description suspiciously-familiar to later contactee/abductee reports.
		The overall probability-value or ratio-of-intensity for the field as a whole is the determinant, through focus of the transition-juncture, as to whether the field will polarize 4th density positive, 4th density negative or fail to so polarize altogether (in which case it generally self-destructs, or is left barren as an "uninhabitable" matrix).
	zelator.topcities.com /Montauk.htm (4238 words)

	A High-Performance, Single Signal, Direct Conversion Receiver with DSP Filtering
		At almost 50 db, the opposite sideband rejection is at least as good with the DSP demodulator as it was with the original analog demodulator.
		A simulation of the opposite sideband rejection for SSB and CW are shown in Figures (Sideband Rejection SSB) and (Sideband Rejection CW).
		(Which sideband you actually get depends on your LO connections; if you get the wrong one, either swap your LO connections or the wire from C25 to the other channel.) All the other connections are the same as they were for the R2 with the original analog demodulator.
	www.wwc.edu /~frohro/R2_DSP/Motorola_DSP_Receiver.html (3615 words)

	Independent_Sideband_SSTV (Site not responding. Last check: 2007-10-29)
		Receiving generally took place by simply taking two separate receivers, one tuned to 14230 upper sideband to receive the SSTV picture on a P7 monitor, and the other receiver on LSB picking up the simultaneous voice.
		A few people made special exciters that used a matched set of mechanical or crystal filters to pass only the desired sidebands.
		The output of the low level exciters were then combined in a common driver which drove a common final amplifier.
	www.ultimatecharger.com /html/Independent_Sideband_SSTV.html (130 words)

	FS-1045A: Appendix A
		NOTE: Although the response values given are for single-channel USB operation, an identical shape, but inverted, channel response is required for LSB or the inverted channel of a dual-channel independent sideband operation.
		When four-channel independent sideband operation is employed, the four individual 3-kHz channels shall be configured as shown on Fig.
		Receiver rejection of spurious frequencies, other than IF and image, shall be at least 65 dB for frequencies from +2.5 percent to +30 percent, and from -2.5 percent to -30 percent, of the center frequency, and at least 80 dB for frequencies beyond ±30 percent of the center frequency.
	www.its.bldrdoc.gov /fs-1045a/45-appa.htm (3595 words)

	651S-1 Receiver
		Many other options are available, such as various remote control interfaces, narrow-band FM, independent sideband, and special filters; with each capable of being incorporated by the simple addition or substitution of plug-in modules.
		Refer to the configuration chart for the status numbers of receivers that already have the option installed and for part numbers of the vlf subassemblies.
		Independent sideband operation is obtained by the addition of an ISB plug-in circuit card (A3).
	www.wa3key.com /651s1.html (2850 words)

	Section
		Telephony, independent sideband (two Bn=sum of M for each sideband 2 channels, M=3000, Bandwidth: 6000 Hz=6 kHz 6K00B8E or more channels).
		sideband emission with reduced Index of cooperation is the product of the drum carrier.
		Cmax=9960, M=30, D=480 Hz, Bandwidth: 20,940 Hz=20.94 kHz Independent sidebands; several Bn=sum of M for each sideband Normally composite systems are operated in 12K0B9W telegraph channels together with accordance with standardized channel several telephone channels.
	edocket.access.gpo.gov /cfr_2004/octqtr/47cfr2.202.htm (1401 words)

	Electronic Code of Federal Regulations:
		These measurements shall be made by means independent of the frequency control of the transmitter and shall be of accuracy sufficient to detect deviation from the assigned frequency within one-half of the allowed tolerance.
		Use of double sideband radiotelephone transmissions, on frequencies below 30 MHz, shall be held to a minimum with a view towards discontinuance of such operations as soon as possible.
		Except in cases where the foreign correspondent is unable to receive single sideband transmissions, double sideband radiotelephone shall not be transmitted after January 1, 1965.
	ecfr.gpoaccess.gov /cgi/t/text/text-idx?c=ecfr&sid=ce2ee195fa1ccefe5c82791dc3eceb77&rgn=div5&view=text&node=47:2.0.1.1.3&idno=47 (8003 words)

	Technical Materiel Corporation GPT-40K
		The GPT-40K Transmitter is a conservatively-rated general purpose transmitter which delivers 40,000 watts PEP (peak envelope power), or 20,000 watts average power throughout the 2- to 28-mc range.
		SSB (single sideband) with suppressed or any degree of carrier.
		ISB (independent sideband) (separate intelligence on each sideband) with suppressed or any degree of carrier.
	www.transmitter.be /tmc-gpt40k.html (1012 words)

	RA98-RA63 (Site not responding. Last check: 2007-10-29)
		The idea of ISB is that you can demodulate either sideband independently of the other.The RA98 works in a similar way to the RA63 but unlike the RA63 where you only take one sideband the RA98 enables you to take either or both sidebands.The RA98 also has a mechanical Automatic Frequency Control (AFC) system.
		The RA298 is an ISB adaptor that is designed for use with Receivers such as the RA217,RA1217, RA1218 etc.and allows reception of Indipendant Sideband and Single Sideband transmissions with suppressed to full carrier signals.
		It has seperate USB and LSB audio outputs on the rear panel which are avaliable as either balanced or unbalanced outputs and there is provision for headphone monitoring on the front panel.
	www.recelectronics.demon.co.uk /ssb.htm (366 words)

	Poptronics: Modulation methods, part 2: SSB. (All About).@ HighBeam Research (Site not responding. Last check: 2007-10-29)
		DSB or Double SideBand is AM with the carrier suppressed, but with both upper and lower sidebands.
		DSB is compatible with SSB receivers, the receiver merely rejects the unwanted or redundant sideband.
		The use of both sidebands to carry two separate channels of information is called ISB, or Independent SideBand.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:93987951&refid=holomed_1 (211 words)

	[No title]
		independent and soveriegn in their domain as Bell is within its domain.
		These were, of course, multiple- channel independent sideband radios, so two channels meant we were interested only in having clear radio spectrum "space" only three kiloHertz above and below the carrier frequency.
		We would have to change carrier frequency two or three times a day, to higher frequencies in the daytime and lower frequencies at night.
	web.elastic.org /~fche/mirrors/www.textfiles.com/politics/spooks.txt (1310 words)

	The AM Stereo Tech Zone
		Here is a graph of the de-emphasis curve that is needed for the correct equilization when receiving a broadcast from a station that follows the NRSC ANSI/EIA 549-1988 standard metting the AMAX specification.
		As a result the signal has sort of a ISB effect when amplitude modulated and sidebands on one side of the carrier are slighty stronger than the other side as compared to regular PM.
		C-ISB© refers to an Independent Sideband version of C-QuAM® where L-R is audio phase shifted by +90°.
	www.hal-pc.org /~jsgil/AM-Stereo (1647 words)

	Single Sideband (Site not responding. Last check: 2007-10-29)
		As early as 1914 the concept of single sideband communication was understood.You already understand that:
		To transmit single-sideband requires that we eliminate or suppress the carrier and eliminate one sideband.
		The Q of the filter depends on center frequency of the carrier fc; The separation between the two sidebands, delta f ; The desired attenuation level of the unwanted sideband.
	webclass.lakeland.cc.il.us /mbeavers/SSB.html (398 words)

	Amplitude Modulation - Stereo AM
		Each sideband is equal in bandwidth to that of the modulating signal and is a mirror image of the other.
		Thus, most of the power output by an AM transmitter is effectively wasted: half the power is concentrated at the carrier frequency, which carries no useful information (beyond the fact that a signal is present); the remaining power is split between two identical sidebands, only one of which is needed.
		Even greater efficiency is achieved—at the expense of increased transmitter and receiver complexity—by completely suppressing both the carrier and one of the sidebands.
	members.aol.com /StereoAM/amplitude-modulation.html (629 words)

Try your search on: Qwika (all wikis)