Transponder (2378 bytes)
1: In [[telecommunication]], the term '''transponder''' (sometimes abbreviated to XPDR or TPDR) has th...
7: ... to the satellite, rather than paying for a whole transponder, or using [[landline]]s to send it to an [[earth ...
9: ...de information and a four digit code known as a [[transponder code]] or a "squawk code" to help air traffic con...
11: [[Sonar]] transponders operate under water are used to measure distance...
17: [[da:Transponder]]

Transponder code (2556 bytes)
1: ... air traffic controllers in traffic separation. A transponder code (often called a squawk code) is assigned by ...
12: .... If it is not possible for the pilot to set the transponder, they can also report a hijacking by using the ph...
16: ...k codes are 4-digit octal numbers, the dials on a transponder read from 0 to 7 inclusive. Thus the lowest poss...

DME (1478 bytes)
3: ...for '''Distance Measuring Equipment'''. It is a [[transponder]]-based [[radio]] [[navigation]] technology gener...
5: ...ses with a random time interval between them. The transponder echoes the pulses. The DME receiver then searches...
7: ...for the echoes and can retain lock. A typical DME transponder can provide concurrent distance information to ab...
9: ...ument uses frequencies from 1025 to 1150 MHz. DME transponders transmit on 962 to 1150 MHz and receive on 962 t...
11: ...metrically]] upon both the [[altitude]] above the transponder and the ground distance from it.

Swipe card (482 bytes)
1: ...tic stripe, an [[RFID|RFID tag]], a [[transponder|transponder device]] and/or a [[microchip]] mostly used for b...

FasTrak (3259 bytes)
7: ...ectronic sign (6). If the vehicle does not have a transponder, the system classifies it as a violator and camer...
11: ...ving at speeds that may exceed 70 m.p.h. The RFID transponder in each vehicle is associated with a prepaid acco...
13: ...mage:FasTrak transponder.jpg]]<br>Mounted FasTrak transponder</div>
17: Anybody with a FasTrak transponder can use it to pay tolls on any California toll ro...

Identification friend or foe (1664 bytes)
5: ... in a friendly aircraft "painted" by the radar. A transponder responds,
14: ...modern military aircraft is compatible with the [[transponder]] system used for civilian air [[traffic]] contro...

Insat (1116 bytes)
4: ...]] imaging. These satellites also incorporates a transponder for receiving distress alert signals for search a...

TLS (361 bytes)
10: * Transponder Landing System

AIS (354 bytes)
4: ...Automatic Identification System]], a system using transponder technology and VHF radio signals to identify, loc...

Footprint (satellite) (422 bytes)
1: ...ground area that its [[transmitter]]s (known as [[transponder]]s) cover. Examples can be found on the websites ...

MISTRAM (1469 bytes)
5: ...ng station transmitted a carrier signal which the transponder responded to by re-broadcasting it on another (sh...

Ringaround (477 bytes)
5: ...esence of false targets declared as a result of [[transponder]] [[interrogation]] by side lobes of the interrog...

NORDO (494 bytes)
1: ...te a NORDO situation by setting the appropriate [[transponder code]]: 7600.

SES Astra (2372 bytes)
1: ...television]] and [[radio]] [[channel]]s via 176 [[transponder]]s to 91 million [[household]]s across [[Europe]]...
20: ...w.ses-astra.com/satellites/footprints.shtml Astra transponder] [[footprint (satellite)|footprints]] (To see ho...

Single channel per carrier (2520 bytes)
1: ...ve|carrier]], but instead independently share a [[transponder]]. It may also be used on other [[communications...
10: * any bandwidth (up to a full transponder)

Oboe (navigation) (5106 bytes)
3: ...hfinder (RAF)]] carrying a radio transponder. The transponder reflected the signals, which were then received b...
19: ...tter and the ground stations were fitted with the transponder.
21: ...he transponder. Each receive-reply cycle took the transponder 100 microseconds, allowing it to handle a maximum...

MétéoMédia (854 bytes)
3: ...]]). The two originally shared an [[analog]]ue [[transponder]] on one of the [[Anik]] [[communications satelli...

Galaxy IV (850 bytes)
1: ... of both [[C band]] and [[Ku band]] [[Transponder|transponders]], was launched on [[June 24]], [[1993]] and ope...

Round-trip delay time (974 bytes)
7: ...arget and for the [[echo (phenomenon)|echo]] or [[transponder]] reply to return to the receiver.

Racon (2911 bytes)
1: A '''Racon''' is a type of [[radar]] [[transponder]] commonly used to mark maritime navigational haz...
21: ...racons operate in a slow sweep mode, in which the transponder sweeps across the X-band over 1 or 2 minutes. It...

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