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Pulse frequency modulation
| Словарь терминов и сокращений в авиации |
Частотно-импульсная модуляция
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Pfm, английский
- Pulse frequency modulation
- Pure file magic (format)
- Abbreviation for pulse-frequency modulation. also referred to as square wave fm.
- Pre-flight messages (ew)
- Performance focus manager
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Pfns, английский
Position fixing navigation system
Photographic flight, английский
(полет на воздушное фотографирование
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