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Established in 1915, the company has produced a wide variety of products including marine electronics, measuring equipment for telecommunication, radio broadcasting equipment, and amateur radio equipment, including the JST-145dx/JST-245dx HF transceivers, which were the last amateur radio transceivers produced by JRC, ending in 2002.
Marine radar has performance adjustment controls for brightness and contrast, also manual or automatic adjustment of gain, tuning, sea clutter and rain clutter suppression, and interference reduction. Other common controls consist of range scale, bearing cursor, fix/variable range marker (VRM) or bearing/distance cursor (EBL).
OPS-20 is a two-dimensional radar manufactured by Japan Radio. It is compatible with the Global Maritime Distress and Safety System (GMDSS) and installed as an anti-water search radar on the Maritime Self-Defense Force's escort ship. [1] Variations include OPS-20B, OPS-20C and OPS-20E.
The method of operation during the day was for radar to direct the flak's optical fire control towards the target. Once this was acquired, the flak was controlled by the optical equipment to complete the engagement. During the night, the radar would be used to indicate the target to the searchlight crews.
OPS-28 is a Pulse-Doppler radar manufactured by Japan Radio. It is installed as a low-altitude warning / anti-water search radar mainly on the Maritime Self-Defense Force 's escort ship. [ 1 ] Variations include OPS-28-1 , OPS-28B , OPS-28C , OPS-28D , OPS-28E and OPS-28F .
It is installed as an anti-water search radar on the Maritime Self-Defense Force's escort ship. [1] Variations include OPS-18-1 and OPS-18-3 . The model numbers of the Maritime Self-Defense Force's electronic devices, including this machine, are generally based on the naming rules for military electronic devices of the U.S. military.
Recent advances in aviation weather-avoidance radar and in marine radar have successfully replaced the magnetron with microwave semiconductor oscillators, which have a narrower output frequency range. These allow a narrower receiver bandwidth to be used, and the higher signal-to-noise ratio in turn allows a lower transmitter power, reducing ...
In the radar receiver, the returning echoes are typically received by the antenna, amplified, down-converted to an intermediate frequency, and then passed through detector circuitry that extracts the envelope of the signal, known as the video signal. This video signal is proportional to the power of the received echo.