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16 Cards in this Set
- Front
- Back
(611) What is a typical unambiguous range limit for a doppler radar transmitting at a PRF of 700 pps?
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116 NM
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(611) What is doppler dilemma in terms of selecting an operating pulse repetition frequency?
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trade off between velocity aliasing and range folding
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(611) What process is designed to eliminate range folding and velocity aliasing?
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post processing
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(612) The primary purpose of the clean air mode of operation is to
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support pilot weather briefings and sea surface operations
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(612) What is the selection criteria for the wsr-88d operating modes?
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clean air mode selected manually; precipitation mode is selected automatically or manually
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(612) The three phases associated with the precipitation mode are...
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approach, storm, and severe convective storm
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(613) In the wsr-88d radar, an elevation cut is
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a single full rotation of the antenna at a discrete elevation
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(613) In the wsr-88d radar, pulse recurrent interval (PRI) pattern waveforms are characterized into what three categories or groups?
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contiguous surveillance, contiguous doppler, batch
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(613) In the wsr-88d radar, scan strategies are embodied in various volume coverage (VCP) to
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optimize performance under specific meteorologic condition
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(614) What was considered base data generated by older conventional weather radar, such as the wsr-57 and wsr-74
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patterns of unanalyzed equivalent reflectivity
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(614) What are two parameters measured by the wsr-88d doppler radar that older weather radars could not measure?
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radial velocity and spectrum width
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(614) What wsr-88d weather products are derived from reflectivity, mean radial velocity, and spectrum width?
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base products
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(614) What wsr-88d weather product inlcudes contour presentations of reflectivity, echo tops, and wind shear?
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derived products
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(614) What is the difference between principal users and other users concerning access to wsr-88d weather products?
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other users have access to a limited set of products
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(614) What procedural access methods are used to let different groups of wsr-88d radar users share common dial-up interface ports?
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password protection and time-out limits
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(615) What is the advantage of the wsr-88d radar sytem over older weather radars?
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displays new fields of doppler velocity and derived airflow patterns
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