PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
PRIMUS
â
660 Weather Radar System
B--6
Rainfall Rate (mm/hr)*
Color
1--4
4--12
12--50
Greater than 50
Green
Yellow
Red
Magenta
* Millimeters per hour
Rainfall Rate Color Cross Reference
Table B--2
D
GMAP
-- Selecting the GMAP position 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.
CAUTION
WEATHER TYPE TARGETS ARE NOT CALIBRATED WHEN THE
RADAR IS IN THE GMAP MODE. BECAUSE OF THIS, THE PILOT
SHOULD NOT USE THE GMAP MODE FOR WEATHER
DETECTION.
As a constant reminder that GMAP is selected, the green GMAP
legend is displayed and the color scheme is changed to cyan,
yellow, 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 warm--up period is over
(approximately 45 seconds), a green WAIT legend is displayed. In
the WAIT mode, the transmitter and antenna scan are inhibited and
the memory is erased. When the warm--up period is over, the
system automatically switches to GMAP mode and a green GMAP
is displayed in the MFD mode field.
WARNING
THE SYSTEM ONLY PERFORMS THE FUNCTIONS OF WEATHER
DETECTION OR GROUND MAPPING. IT IS NOT INTENDED TO
BE USED OR RELIED UPON FOR PROXIMITY WARNING OR
ANTI--COLLISION PROTECTION.