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FIG 4

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NAS Stage A Controllers View Plan Display

This figure illustrates the controller's radar scope (PVD) when
operating in the full automation (RDP) mode, which is
normally 20 hours per day.

(When not in automation mode, the display is similar to the broadband
mode shown in the ARTS III radar scope figure.
Certain ARTCCs outside the contiguous U.S. also operate in "broadband"
mode.)

AAL373
280C
191H-33

AAL373
280C
191H-33

VIG123
310N

VIG123
310N

NWA258
170  143

NWA258
170  143

AAL353
70  231

AAL353
70  231

R15909
170C

R15909
170C

N1467F
140 + 143

N1467F
140 + 143

UAL33
100A

UAL33
100A

EMRG

EMRG

RDOF

RDOF

+ + +

UAL712

310N

228CST

UAL712

310N

228CST

RADAR  SERVICES  AND  PROCEDURES

EXAMPLE

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Target symbols:

1.  Uncorrelated primary radar target

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Surveillance Systems