单项选择题
A.the radar reflectors reflect better signals B.fog horn signals travel farther to sea C.it is equipped with strobe lights D.it has a reduced watch circle
The ARPA may swap targets when automatically tracking i...
单项选择题The ARPA may swap targets when automatically tracking if two targets（）.
A.are tracked on reciprocal bearings B.are tracked at the same range C.are tracked on the same bearing D.pass close together
The 3-cm radar as compared to a 10-cm radar with simila...
单项选择题The 3-cm radar as compared to a 10-cm radar with similar specifications will（）.
A.give better range performance in rain，hail，etc B.display small targets in a mass of dense sea clutter at a greater range C.have less sea return in choppy rough seas D.display a more map like presentation for inshore navigation
The 10-cm radar as compared to a 3-cm radar of similar ...
单项选择题The 10-cm radar as compared to a 3-cm radar of similar specifications will（）.
A.be more suitable for river and harbor navigation B.provide better range performance on low lying targets during good weather and calm seas C.have a wider horizontal beam width D.have more sea return during rough sea conditions
