1) рлк ответчик
2) радио , связь ретранслятор
3) геофиз. транспондер, повторитель сигналов
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- air traffic control transponder
- channelized transponder
- crossband transponder
- frequency-agile transponder
- frequency-channellized transponder
- frequency-channel transponder
- friend-or-foe transponder
- high-capacity transponder
- identification transponder
- in-band transponder
- multicarrier transponder
- multichannel transponder
- power-constrained transponder
- processing transponder
- radar transponder
- regenerative transponder
- satellite transponder
- satellite-activated transponder
- single-channel transponder
- sonar transponder