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The SIAI-Marchetti SF.260 (now Leonardo SF-260) [3] is an Italian light aircraft which has been commonly marketed as a military trainer and aerobatics aircraft. The SF.260 was designed by Italian aircraft designer Stelio Frati , while production work originally performed by Milan -based aviation manufacturer Aviamilano .
The ARC-190 is a military HF radio that operates between 2-30 MHz and transmits at 300+ watts.It features a dual heterodyne receiver/transmitter that uses IF frequencies of 97.8 and 1.8 MHz, an antenna coupler that is pressurized to 7±1 PSI with dry nitrogen (air) which (1) prevents high voltage arcing, (2) prevents corrosion, (3) provides a uniform cooling medium, and one of various controls ...