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

Digital weather radar system

Table of Contents

PRIMUSr 880 Digital Weather Radar System

When the warmup is complete, the system changes the mode field

from WAIT to STBY.

TEST- This position selects the radar test mode. A test pattern is

displayed to verify that system operates. The green TEST legend

is displayed in the mode field. Refer to Section 4, Normal

Operation, for a description of the test pattern.

UNLESS THE SYSTEM IS IN FORCED STANDBY, THE TRANSMIT-

TER IS ON AND RADIATING X- BAND MICROWAVE ENERGY IN

TEST MODE. REFER TO SECTION 6, MAXIMUM PERMISSI-

BLE EXPOSURE LEVEL (MPEL).

WX - In this position, the radar system is fully operational and all

internal parameters are set for enroute weather detection.

If WX is selected before the initial RTA warmup period is complete, a

flashing WAIT legend is displayed. In WAIT mode, the transmitter

and antenna scan are inhibited and the memory is erased. When the

warmup is complete, the system automatically switches to the WX

mode and a green WX is displayed in mode field.

The system, in preset gain, is calibrated given in table NO TAG.

Rainfall Rate

in/hr

.04- .16

.16- .47

.47- 2

> 2

GMAP - Selecting GMAP places the radar system in the ground

mapping mode. The system is fully operational and all internal

parameters are set to enhance returns from ground targets. RCT

compensation is inactive.

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.

Operating Controls

3-24

WARNING

mm/hr

1- 4

4- 12

12- 50

>5 0