tv went from analog to digital on june 12, 2009.
tv went from analog to digital on june 12, 2009.
when did tv go from analog to digital?
june 12 , 2009
kwqc-tv shut down its analog signal, over vhf channel 6, at 11:59 p.m. on june 12, 2009, the official date when full-power television stations in the united states transitioned from analog to digital broadcasts under federal mandate. the station shut off its pre-transition digital signal on channel 56 just after midnight on june 11–12. the station returned to the air on channel 36 around 1:00 a.m. on friday june 12. through the use of psip, digital television receivers display the station's virtual channel as its former vhf analog channel 6. most of the station's programming on the broadcast day of june 12, 2009, was actually broadcast both on analog channel 6 and the new digital channel 36, until 11:59 p.m. when kwqc used analog channel 6 to provide a nightlight service to those remaining analog-only television viewers without a digital tv set or digital converter box for the two weeks following the digital transition.
kwqc-tv
the most significant of this series of engines was the 14ab, which was a very compact design with relatively good performance, and some 2,500 engines were produced. the 14ab suffered from cooling problems, and many aircraft originally designed for the 14ab were redesigned to use the more reliable gnome-rhône 14m series of engines or imported wright and pratt & whitney r-1535 engines.









































section::::variants.









































bullet::::- 14ab-00









































bullet::::- 14ab-02









































bullet::::- 14ab-12:800 hp









































bullet::::- 14ab-13:800 hp









































section::::applications.









































bullet::::- potez 630









































bullet::::- breguet 691









































bullet::::- zmaj r-1









































section::::references.









































bullet::::- gunston, bill. (1986). "world encyclopaedia of aero engines". patrick stephens: wellingborough. p. 90
hispano-suiza 14ab