Rainfall Rate Color Coding - Honeywell Primus 880 Pilot's Manual

Digital weather radar system

Table of Contents

PRIMUSr 880 Digital Weather Radar System

If WX is selected before the initial RTA warmup period is over

(approximately 90 seconds), the white WAIT legend is displayed

in the mode field. In wait mode, the transmitter and antenna scan

are inhibited and the display memory is erased. When the warmup

is complete, the system automatically switches to the WX mode.

The system, in preset gain, is calibrated as listed in table 4- 1.

Rainfall Rate

in/hr

.04- .16

.16- .47

.47- 2

> 2

GMAP (Ground Mapping) - The GMAP position puts the radar

system in the ground mapping mode. The system is fully

operational and all parameters are set to enhance returns from

ground targets.

NOTE:

REACT, TGT, or TURB modes are not selectable in GMAP.

WEATHER TYPE TARGETS ARE NOT CALIBRATED WHEN

THE RADAR IS IN THE GMAP MODE. BECAUSE OF THIS, DO

NOT USE THE GMAP MODE FOR WEATHER DETECTION.

As a constant reminder that GMAP is selected, the alphanumerics

are changed to green, the GMAP legend is shown in the mode field,

and the color scheme is changed to cyan, yellow, and magenta.

Cyan represents the least reflective return, yellow is a moderate

return, and magenta is a strong return.

If GMAP is selected before the initial RTA warmup period is

complete, the white WAIT legend is shown in the mode field. In wait

mode, the transmitter and antenna scan are inhibited and the

memory is erased. When the warmup period is complete, the

system automatically switches to the GMAP mode.

FP (Flight Plan) - The FP position puts the radar system in the flight

plan mode, which clears the screen of radar data so ancillary data

can be displayed. Examples of this data are:

Operating Controls

3-4

mm/hr

1- 4

4- 12

12- 50

>5 0