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	Transponder - Wikipedia, the free encyclopedia
		Another example of transponders is in identification friend or foe systems and air traffic control secondary surveillance radar (beacon radar) systems.
		Most transponders are also able to transmit altitude information and a four digit code known as a transponder code or a “squawk code” to help air traffic controllers in separation.
		Sonar transponders operate under water are used to measure distance through water and form the basis of underwater location marking, position tracking and navigation.
	en.wikipedia.org /wiki/Transponder (330 words)

	atrexx - Satellite Transponder
		Transponders were originally electronic circuits that were attached to some item whose position or presence was to be determined.
		A satellite transponder is a circuit on a satellite that receives, modulates, amplifies and re-transmits an uplinked signal.
		Typical bandwidths of a transponder are 27, 33, 36, 54 and 72 MHz.
	transponder.atrexx.com (287 words)

	Transponder Signals and Prefix Codes
		Transponder codes can be extremely useful when a group of ships are acting together, since they enable the fleet's commander to instantly identify each vessel under his or her command and to see exactly how they are deployed.
		Transponders are not intended to allow anybody and everybody to locate a ship; cloaked vessels, for example, do not transmit them.
		Transponders are invaluable in this kind of situation, because if a ship is severely damaged it may not be generating any of the energy signatures that can be used to locate vessels.
	www.homestead.com /federation_archives/files/Transponder.html (943 words)

	TRANSPONDERS WILL BE USED AS OFFICIAL TIMING IN THE 2002 RACING SEASON (Site not responding. Last check: 2007-10-21)
		The transponder number is the single unique identifying signature for all cars as they pass the loop - all other information like driver, number, class, etc. are associated with that one transponder.
		When a rechargeable transponder starts to flash amber the rechargeable unit has less than 24 hours left on the charge and needs to be recharged.
		The timing for each lap will begin the first time the transponder passes over the loop, and the lap time will be calculated based on the difference in time until the next time the transponder passes over the loop.
	www.scca-milwaukee.org /RoadRacing/transponders_for_2002.htm (1784 words)

	doxdesk.com: database: Transponder (Site not responding. Last check: 2007-10-21)
		Transponder is operated by DirectRevenue (direct-revenue.com), aka ThinkingMedia (thinkingmedia.net).
		Transponder opens pop-up adverts depending on targeted URLs being browsed, targeted terms being entrered into forms (this is aimed at search engines), and how much browsing is being done - the software tries to hide by not opening adverts when little is happening.
		Transponder reports back to its servers with URLs visited and information entered into web forms, with a unique ID allowing web usage to be tracked.
	www.doxdesk.com /parasite/Transponder.html (1408 words)

	Transponder Technology
		Electric coupled transponder systems are not limited to small areas for transmission but can transmit messages or signals for different ranges of distance including several inches to miles, as used in Satellites and Airplanes.These systems require large amounts of constant electricity to operate.
		Since Magnetic Coupled Transponders do not have their own power source they are very limited to range of communication and generally operate in the range of 1cm to 15cm.
		Transponders can be made into several different shapes and sizes and can be used in many different types of applications such as: warehouse pallets, retail clothing, animal management, and of course electronic automobile key identification.
	www.nvo.com /natl/cookiesnotice (542 words)

	Transponder Antenna Problems
		The transponder antenna is mounted externally on the inspection cover of the autopilot servo.
		Our transponder antenna is the same as the antenna he designed for the Bellanca Viking, which passed a number of FAA certification tests, and it's been a popular antenna design used in many other wood and fiberglass airplanes.
		He said that the transmitting operation of a transponder is a tricky business and that the transmitting cavity, the cable and the antenna is a tuned device.
	www.seqair.com /skunkworks/Antennas/TpxAntProbs/TpxAntProbs.html (2945 words)

	Davenport-Burgess Transponder Systems (Site not responding. Last check: 2007-10-21)
		Vehicle transponder systems were introduced as a result of German Insurance bodies refusing to underwrite vehicles that didn't have some form of passive electronic immobilisation.
		The transponder chip itself does not have to be directly visible to be able to communicate.
		A transponder system functions around two primary components, the processor/interrogator and a transponder microchip embedded in the head of the ignition key.
	www.davenport-burgess.com /pages/products/general/transponders.htm (623 words)

	Inplantable Transponder - TX1400L (Site not responding. Last check: 2007-10-21)
		The Inplantable Transponder is a passive radio-frequency identification tag, designed to work in conjunction with a compatible radio-frequency ID reading system.
		The transponder consists of an electromagnetic coil, tuning capacitor, and microchip sealed in a cylindrical glass enclosure.
		When the transponder is activated by a low-frequency radio signal, it transmits the ID code to the reading system.
	www.electronicidinc.com /tx1400l.html (208 words)

	Recently granted patents - October 99 -Transponder news (Site not responding. Last check: 2007-10-21)
		In addition, once the transponder response is sent back to the interrogator, the response is also shifted through a preinitialized CRC generator within the interrogator(which could be a software implementation).
		Each transponder includes a receiving antenna for receiving the interrogation signal, a code generator, a transmitting antenna, and a modulator connected to the code generator.
		An EID or RFID transponder having an encapsulant with an open end to allow insertion of the transponder circuitry and a phase changing material such as an epoxy used to both secure the circuitry of the transponder within the encapsulant and seal the open end of the encapsulant.
	rapidttp.com /transponder/cpat99oc.html (3772 words)

	transponder - a Whatis.com definition (Site not responding. Last check: 2007-10-21)
		A transponder is a wireless communications, monitoring, or control device that picks up and automatically responds to an incoming signal.
		A passive transponder must be used with an active sensor that decodes and transcribes the data the transponder contains.
		Sophisticated active transponders are used in communications satellites and on board space vehicles.
	whatis.techtarget.com /definition/0,,sid9_gci213219,00.html (346 words)

	Transponder Operation, Darren Smith, Flight Instructor, Tampa, Florida, CFI Homepage
		Transponders substantially increase the capability of radar to see an aircraft and the MODE C feature enables the controller to quickly determine where potential traffic conflicts may exist.
		Civil and military transponders should be adjusted to the "on" or normal operating position as late as practicable prior to takeoff and to "off" or "standby" as soon as practicable after completing landing roll, unless the change to "standby" has been accomplished previously at the request of ATC.
		The manner in which transponder panels are designed differs, therefore, a pilot should be thoroughly familiar with the operation of the transponder so that ATC may realize its full capabilities.
	www.geocities.com /cfidarren/r-transponder.htm (1672 words)

	The Hillman Group - Transponder
		The Transponder Key program is probably the most significant change in the automotive replacement key industry since the Cubs won the World Series.
		Transponder keys are not as easy to identify as one may think.
		Many Transponder Keys look identical to traditional rubber head keys therefore it may be difficult to see any visible difference between them.
	www.hillmangroup.com /transponder.htm (565 words)

	Improved Transponder for Earth/Spacecraft Communication
		The overall function of the transponder is to receive an S-band signal (uplink signal) from the ground, demodulate the signal to extract command and control information, and generate a return carrier signal modulated by either ranging or telemetry data to be transmitted back to the ground (downlink signal).
		The transponder must phase-lock to the received uplink signal, determine frequency of the received carrier, and generate the return carrier signal at a frequency of exactly 240/221 times that of the received carrier signal.
		The transponder can also detect whether the carrier-tracking loop has locked to a sideband and, if so, can automatically correct the operation of the affected oscillators to cause the loop to lock on the desired uplink carrier signal.
	www.nasatech.com /Briefs/Sept02/MSC23074.html (547 words)

	Transponder - Adware removal instructions (Site not responding. Last check: 2007-10-21)
		Transponder, also known as VX2 and Blackstone is a browser helper object that monitors your web usage, open pop-up windows and updates itself silently.
		Transponder is bundled with a myriad of programs, such as "AudioGalaxy Satellite", "Internet Accelerator" and "NetTurbo".
		Transponder does not offer an uninstaller, but you can remove it manually.
	www.kephyr.com /spywarescanner/library/transponder/index.phtml (336 words)

	Transponder (Target Generation Facility API Docs)
		The transponder class replicates the functionality of the real world transponder in the tail of an aircraft.
		The following are the accessor methods for enabling and disabling the mode C altitude part of the transponder transmitter.
		Transponder code: a 4 digit octal number assigned by ATC to uniquely identify an aircraft (digits range from 0 to 7).
	public.tgf.tc.faa.gov /javadoc/faa/tg/aircraft/Transponder.html (353 words)

	Transponder - Memory Alpha
		A transponder is a device onboard a starship, starbase or other spacecraft, which broadcasts a signal identifying that craft by name, design and allegience.
		Transponders can be deactivated or have their details forged however; the existence or absence of a transponder signal is not proof-positive of a craft's identity or existence.
		For this reason transponder signals can include some kind of code proving to those 'in-the-know' that the signal is geniune.
	www.memory-alpha.org /en/wiki/Transponder (175 words)

	Transponder P4 suppression problem (Site not responding. Last check: 2007-10-21)
		Air traffic control radar is based on a transponder response, rather than imaging off of the radar reflection from the airplane skin.
		This state machine can be adapted for use in almost any brand of transponder, fixing the problem on new designs, and providing a path for the modification of old transponders.
		Because transponder designs differ, our design is parameterized, so that it can be adjusted for each transponder transmitter design ringing duration, and each transponder receiver design phase delay.
	www.gtwn.net /~keith.peshak/P4Problem.htm (1015 words)

	Transponder news - News site about radio frequency identification (RFID RF/ID) transponders, EAS and trolley scanning ...
		Transponder News is written by an expert who has 15 years of hands on experience with RFID technology and systems.
		For passive transponders a second category of choice is in the type of protocol, being either a Reader-talks-first(RTF) or a Tag-talks-first(TTF) protocol.
		Recent developments allow cheap UHF transponders to be made that can operate at distances further than 10 meters, read up to 1000 transponders in a zone at a time, and can be produced at prices that make it economical to use them for use in applications that need low price labelling.
	rapidttp.com /transponder (1029 words)

	Transponder Key discription
		The use of vehicle transponders was introduced as a result of the German Insurance bodies refusing to underwrite vehicles that did not have some form of passive electronic immobilisation.
		As the transponder contains a tuned circuit matched to the frequency of the RF burst, a small voltage is generated by induction within the transponder chip.
		Having two transponder keys on the same key ring or in close proximity to the ignition cylinder when starting the vehicle can cause both keys to emit their codes at the same time, and cause the processor/interrogator to fail to accept either code.
	leedobbs.com /tpdisc.html (855 words)

	www.electroline.com (Site not responding. Last check: 2007-10-21)
		Transponders are installed into HFC equipment such as standby power supplies, fiber nodes, and optical amplifiers, and also can be implemented as stand-alone independent network test points (or otherwise known as end of line monitors).
		Transponders enable the communications of status and performance indicators from devices in the outside plant portion of an HFC subscriber access network.
		Furthermore, a transponder can receive instructions for the control of functionality in the devices in which it is installed.
	www.electroline.com /en/products/transponders (549 words)

	The Garmin GTX 327 Digital Transponder
		This should be a great transponder for the A-36 and sorts where the transponder is located far on the right side of the aircraft.
		This turns on the transponder and after about nine seconds the transponder is up and running in both mode A and C. Should the pilot not wish to turn on mode C (this is altitude) simply press the "ON" button.
		Unlike what I call manual transponders (transponders which have knobs on them) the GTX 327 does not come alive when the avionics master switch is turned.
	www.avionicswest.com /articles/gtx327.htm (1943 words)

	Transponder Basics
		It depends on a "transponder" in the aircraft to respond to interrogations from the ground station.
		Transponders are also sometimes referred to as "beacons", and another name for secondary radar is "ATC Radar Beacon System" or ATCRBS (pronounced "at-crabs").
		The ground station transmits its interrogation pulses on an "uplink" frequency of 1030 Megahertz, and the transponder replies on a "downlink" frequency of 1090 Megahertz.
	www.public-action.com /911/transpon (2448 words)

	Programmable transponder system (EP0347893B1) (Site not responding. Last check: 2007-10-21)
		The transponder responds to this pulse by transmitting to the reader a sequence of a particular number (e.
		The transponder demodulates and decodes the transmitted pulses to recover the identifying code.
		In such a system the transponder is displaced from the reader identifying the transponder to the reader in accordance with a code individual to the transponder and transmitted to the reader at the command of the reader.
	www.delphion.com /details?pn=EP00347893B1 (481 words)

	L-Band IFF RADAR Transponder (Site not responding. Last check: 2007-10-21)
		The Micro Systems, Inc. AN/DPN-88 IFF Transponder is being produced under contract to the U.S. Navy.
		The transponder is an augmentation device primarily used to assist in tracking unmanned vehicles, cruise missiles, and target drones.
		The transponder incorporates the latest in solid state electronics design with 500 watts nominal peak power output.
	www.gomicrosystems.com /Model_DPN88_IFF_Transponder.htm (137 words)

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