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Push-to-talk. Not to be confused with Click-to-call. Push-to-talk ( PTT ), also known as press-to-transmit, is a method of having conversations or talking on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode. CB radio with push-to-talk microphone switch.
Non-discrete mode A code reserved use in mode S radar/ADS-B environment where the aircraft identification will be used to correlate the flight plan instead of the mode A code. US: Used exclusively by ADS-B aircraft to inhibit mode 3A transmission. US: Non-discrete code assignments in accordance with FAA Order JO 7110.65, 5-2.
Multiservice tactical brevity code. March 2023 edition cover page of the Multi-Service Brevity Codes. Multiservice tactical brevity codes are codes used by various military forces. The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words.
Don't hold the microphone button in the push-to-talk position until absolutely ready to transmit. Your carrier will block communications on the net. Don't hold a hand set in such a position while speaking that there is a possibility of having feedback from the earphone added to other extraneous noises. Don't hold a hand set loosely.
F-15 tailhook. Most USAF tactical jet aircraft have tailhooks for emergency use. A tailhook, arresting hook, or arrester hook is a device attached to the empennage (rear) of some military fixed-wing aircraft. The hook is used to achieve rapid deceleration during routine landings aboard aircraft carrier flight decks at sea, or during emergency ...
The RC-3 Seabee was designed by Percival Hopkins "Spence" Spencer. An aviation pioneer who first soloed in a powered airplane in 1914, he designed the Spencer S-12 Air Car Amphibian. Construction of the S-12 began on March 1, 1941 and the small, two-seat S-12 prototype, registered NX29098, made its first flight on August 8, 1941.
MDC (Motorola Data Communications), also known as Stat-Alert, MDC-1200 and MDC-600, is a Motorola two-way radio low-speed data system using audio frequency shift keying, (AFSK). MDC-600 uses a 600 baud data rate. MDC-1200 uses a 1,200 baud data rate. Systems employ either one of the two baud rates. Mark and space tones are 1,200 Hz and 1,800 Hz ...
Selcall ( selective calling) is a type of squelch protocol used in radio communications systems, in which transmissions include a brief burst of sequential audio tones. Receivers that are set to respond to the transmitted tone sequence will open their squelch, while others will remain muted.