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Identification, friend or foe ( IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. [1]
Signal strength and readability report. A signal strength and readability report is a standardized format for reporting the strength of the radio signal and the readability (quality) of the radiotelephone (voice) or radiotelegraph (Morse code) signal transmitted by another station as received at the reporting station's location and by their ...
The APG-63(V)3 radar is a more modern variant of the APG-63(V)2, applying the same AESA technology utilized in Raytheon's APG-79. The (V)3 is currently being retrofitted into F-15C/D and deployed in Singapore's new F-15SG aircraft and Saudi Arabia's new F-15SA aircraft. Raytheon delivered the first prototype APG-63(V)3 system in June 2006. [2]
10.0.0.0/8 10.0.0.0–10.255.255.255 16 777 216: Private network Used for local communications within a private network [3] 100.64.0.0/10 100.64.0.0–100.127.255.255 4 194 304: Private network Shared address space [4] for communications between a service provider and its subscribers when using a carrier-grade NAT: 127.0.0.0/8 127.0.0.0–127 ...
DEFCON. The defense readiness condition ( DEFCON) is an alert state used by the United States Armed Forces. [ 1][ 2] For security reasons, the US military does not announce a DEFCON level to the public. [ 1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [ 3]
Australia. The 2-8-0 locomotive was used extensively throughout Australia. It served on the 5 ft 3 in ( 1,600 mm) broad gauge, 4 ft 81⁄2 in ( 1,435 mm) standard gauge and 3 ft 6 in ( 1,067 mm) narrow gauge and was employed mostly as a freight locomotive, although it was often also employed in passenger service in Victoria.
However, the 4-4-0 was soon supplanted by bigger designs, like the 2-6-0 and 2-8-0, even though the 4-4-0 wheel arrangement was still favored for express services. The widespread adoption of the 4-6-0 and larger locomotives eventually helped seal its fate as a product of the past.
Vice President Harris will head to Wisconsin on Tuesday for her first rally since securing enough delegates to become the likely Democratic nominee for president, where she will lay out the case ...