... drilling derrick. Two radar frequencies are required to extract wave properties from sea states likely to be encountered offshore (25.4 Mhz for Hs < 3.5 m and 6.8 MHz for Hs > 3.5 m). * Development of system control software to enable the system to acquire and process the radar signals in real...

... with a horizontal resolution of 100 - 130 lines has been obtained over a 28,000 ft tow cable using a 1.85 MHz carrier. At this frequency the cable attenuation was in excess of 77 dB. INTRODUCTION The practicality of transmitting a standard TV signal over a long coaxial tow cable depends principally on whether...

... systems). It accomplishes this while using no more peak power than the older Shoran and while requiring only one "clean, splatter-free" 2.87 MHz bandwidth UHF channel, compared to three 4 to 6 MHz bandwidth channels for the older systems. base station operator reservoir characterization antenna...

... doppler count conclusion satellite accuracy satellite position channel receiver data position fix dual channel receiver information altitude frequency correction elevation angle mhz refraction equation THIS IS A PREPRINT ~UBJECT TO CORRECTION =~ OTC 1396 to Satellites Ionospheric...