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...requency bands|Super High Frequency (SHF)]] communications relay channel [[transponder]]s, plus a seventh channel for transmitting [[Single Integrated Operational

...ormation must flow over terrestrial networks. Later models carry a one-way transponder for the [[Global Broadcast Service]] (GBS), another broadcast application.

A '''search and radar transponder (SART)''' is a [[radar]] [[transponder]], part of the [[Global Maritime Distress and Safety System]] (GMDSS), whic | title = Search and Rescue Transponder}}</ref>

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A '''transponder''' is a coupled radio or radar receiver-transmitter that will generate a re ...craft only by visually checking the "tail number" painted on the tail. Had transponder information been available, fighters would still have had difficulty making

...er" response system, such as an [[air traffic control]] systems based on [[transponder]]s. It may be completely under the control of the response system, as with

{{r|Transponder}}

...the beacon's ability to retransmit interrogations from a finite number of transponder.

...the key information. AIS is a shipboard broadcast system that acts like a transponder, operating in the [[ITU frequency bands|VHF maritime frequencies]]. VHF is

...gency position indicating radio beacon]]s (EPIRBs) and [[search and rescue transponder]]s (SARTs) for the location of the ship or survival craft. For oceangoing c

...the [[Global Maritime Distress and Safety System]], carrying some of the [[transponder]]s of the multi-satellite [[COSPAS-SARSAT]] system that receives and relays

...Satellite System]]s; [[radar]] location aids such as a [[search and rescue transponder]]; and specialized communications such as the maritime [[Digital selective

Especially if the EPIRB is not GPS-equipped, a [[search and rescue transponder]] may be a valuable adjunct to the final stages of rescue, along with visua

...tracking a noncooperating target simply by its radar reflection. Without a transponder signal, one airliner looks like another; positive identification comes only

...automatic identification system]] (AIS), which is a continuously operating transponder system much as used in [[air traffic control]]. AIS, like another aviation

In addition, [[search and rescue transponder]]s (SART) must be on the ship and survival boats. <ref name=SART>{{citation

...ters smuggled past airport security, while the new pilots turned off the [[transponder]]s needed for air traffic control, and flew the planes, each loaded with ov ...dar]] reflections. There was no simple way to find the airliners. With the transponder turned off, it would be necessary literally to read the number painted on t

...na from P6 to P1, and installed a new S-Band Baseband Signal Processor and Transponder on the P1 truss. During a routine glove inspection, Mastracchio noticed a p