Unit 4-3

Front 1

(615) What is the wsr-88d xmitter wavelength and peak power?

Back 1

between 10 and 11 cm with a peak transmitted power of 700 +-50 kilowatts (kW)

Front 2

(615) Which unit is considered the wsr-88d's workstation for the retrieval of products?

Back 2

principal user processor (PUP)

Front 3

(615) The two basic wsr-eed components considered to be the radars memory are...

Back 3

COHO and STALO

Front 4

(615) The method used for xmission in the wsr-88d is generation of a

Back 4

composite frequency of COHO and STALO and amplification by a klystron

Front 5

(616) What wsr-88d radar subsystem generates and radiates RF pulses?

Back 5

radar data acquisition (RDA)

Front 6

(616) Software required to perform the signal processing in the wsr-88d radar data acquisition (RDA) is located in the...

Back 6

data processor cabinet

Front 7

(616) What wsr-88d radar equpipment group provides high speed intercomputer transfer of data between the RDA and RPG?

Back 7

wideband communications (WBC)

Front 8

(616) What is the maxiumum distance allowed by the wsr-88d's wideband communication group when remoting data via a direct wire link?

Back 8

400 feet

Front 9

(616) Hardware and software required for wsr-88d system remote control, status monitoring, and error detection are contained in the

Back 9

radar product generator (RPG)

Front 10

(616) WSR-88d system testing and troubleshooting, local product selection, generation, and distribution control is done by the

Back 10

unit control position (UCP)

Front 11

(616) Graphics processing, narrowband links, local control, and status monitoring software for the wsr-88d's principal user processor (PUP) are contained in the

Back 11

PUP data processor cabinet

Front 12

(616) What unit allows the local control and testing of the WSR-88d's principal user processor (PUP) display processor?

Back 12

system console

Front 13

(617) In the wsr-88d radar, transmitter fault isolation to the line replaceable unit (LRU) is under control of the radar data acquisition (RDA) maintenance terminal and the

Back 13

xmitter cabinet maintenence panel

Front 14

(617) In the wsr-88d radar xmitter what circuit regulates the pulse forming network (PFN) charge to within 0.01 percent of the desired charge?

Back 14

post charge regulator

Front 15

(617) What is the name of the switch used to discharge the PFN in the wsr-88d radar transmitter?

Back 15

reverse blocking diode thyristor

Front 16

(617) In the wsr-88d radar xmitter, what signal synchronizes the operation of the RF driver to the system PRF?

Back 16

RF pretrigger

Front 17

(617) In the Wsr-88d radar xmitter, how many watts of peak power will drive the klystron to full power?

Back 17

7.5 watts

Front 18

(617) What portion of the klystron amplifier develops the stream of electrons that supplies energy for amplification?

Back 18

electron gun

Front 19

(617) The specific resonating frequency of any klystron cavity is changed by...

Back 19

adjusting the size of the internal cavities

Front 20

(618) What processor in the wsr-88d controls the antenna pedestal elevation increment movement?

Back 20

RDA Status and control processor

Front 21

(618) What method enables the wsr-88d radars RDA status and control processor (RDASC) to perform on-line calibration?

Back 21

sampled power at the elevation rotary joint sent to the processor via the data acquisition unit

Front 22

(619) In the wsr-88d radar receiver, what circuit performs the conversion of the IF to I and Q video signals?

Back 22

I/Q Phase detector

Front 23

(619) In the wsr-88d radar, what circuit forms the dividing line between analog and digital processing?

Back 23

Analog to digital converter

Front 24

(619) What function injects test and calibration signals in to the wsr-88d's receivers front end?

Back 24

test source select function

Front 25

(620) In the wsr-88d what monitors and asseses the performance of the radar data acquisition (RDA), performs calibration calculations, and reports RDA status to the RPG

Back 25

RDASC M3200 processor

Front 26

(620) Which function is performed by the wsr-88d radar's radar data acquisition (RDA) hardwired signal processor?

Back 26

ground clutter filtering

Front 27

(620) Master timing for the wsr-88d radar xmitter, radar receiver, and RDA status and control processor is provided by the

Back 27

hardwired signal processor (HSP)

Front 28

(620) The programmable signal processor in the wsr-88d's radar data acquisition (RDA) data processor cabinet transfers the microcode routine to the random access memory (RAM) on...

Back 28

system initialization

Front 29

(621) A function of the wsr-88d radar product generator (RPG) processor is to

Back 29

dealias velocity

Front 30

(621) What outputs from the wsr-88d radar product generator (RPG) processor are sent to the RDA?

Back 30

control commands, volume coverage patterns, clutter sensor zones, and data requests

Front 31

(621) What is used in the wsr-88d radar product generator (RPG) to allow direct data transfer between memory and various peripherals?

Back 31

direct memory access (DMA)

Front 32

(621) In the wsr-88d radar product generator (RPG) archive III storage unit, what type of device is used for permanent memory storage?

Back 32

optical disk drive

Front 33

(622) The wsr-88d radar product generator (RPG) dial port modems support communication with...

Back 33

nonassociated PUP's and other users

Front 34

(622) What type of medium do the wsr-88d radar product generator (RPG)dedicated-port modems support?

Back 34

private (leased) telephone lines

Front 35

(622) In the wsr-88d weather radar, what communications link does the statistical multiplexer (STATMUX A7) support?

Back 35

unit control position (UCP)

Front 36

(623) What controls the loading of the wsr-88d radar product generator (RPG) operating system?

Back 36

unit control position (UCP)

Front 37

(623) In the wsr-88d, what communications link is used to connect the remote unit control position (UCP) to the radar product generation processor?

Back 37

narrowband

Front 38

(623) What configuration lets the wsr-88d radars unit control position (UCP) access the radar product generator (RPG) operating system, application and maintenance programs, and the control diagnostic system?

Back 38

Local and remote UCP configurations

Front 39

(623) Along with a terminal and high speed printer, a wsr-88d radars remote unit control position (UCP) includes a

Back 39

STATMUX and dedicated port modem

Front 40

(624) What processor in the wsr-88d radars principal user processor (PUP formats data and distributes it to data storage, archive IV, and graphics processor?

Back 40

display processor

Front 41

(624) What section of the principal user processor (PUP) data processor cabinet provides visual alerts, audible alerts, and status display info?

Back 41

display processor

Front 42

(624) What processor in the wsr-88d radar system interfaces with the system console and application terminal, and responds to their action requests?

Back 42

PUP display processor

Front 43

(624) What processor in the wsr-88d radar's PUP data processor cabinet receives product inputs from the display processor, formats the data, and writes them in to graphics memory?

Back 43

graphics processor

Front 44

(624) What processor in the wsr-88d receives and responds to control request from the PUP workstations graphics tablet?

Back 44

PUP graphics processor

Front 45

(625) What PUP device is the primary operational position for the wsr-88d weather radar?

Back 45

PUP workstation

Front 46

(625) In the wsr-88d radar's PUP, the interfacing between the graphics processor and the display processor is accomplished by the...

Back 46

application terminal

Front 47

(625) In the wsr-88d radar's PUP, the purpose of puck and tablet data generated bye the graphics tablet and sent to the graphics processor is to

Back 47

conrol the display and select radar produts

Front 48

(625) What wsr-88d radar processor is responsible for actuating threshold alarms provided by the audible alarm UD46?

Back 48

display processor

Front 49

(617)In the wsr-88d radar xmitter, what assembly interfaes the xmitter to equipment outside of the xmitter cabinet?

Back 49

control and monitoring