Revision History Manual KMD 550/850 Digital Weather Radar Pilot’s Guide Addendum Revision 3, June 2004 Part Number 006-18235-0000 Summary Auto Standby may now be disabled during system configuration Miscellaneous corrections...
Revision History Manual KMD 550/850 Digital Weather Radar Pilot’s Guide Addendum Revision 2, January 2002 Part Number 006-18235-0000 Summary Complete manual revision Miscellaneous corrections...
Revision History Manual KMD 550/850 Digital Weather Radar Pilot’s Guide Addendum Revision 1, April 2001 Part Number 006-18235-0000 Summary Added Stabilization function on WX Radar Page Changed format of TILT field Radar faults now supported Added Auto Tilt Added Manual Gain Added Sector Scan Added Automatic Range Limiting Added 5 nm and 320 nm range settings...
Revision History Manual KMD 550/850 Digital Weather Radar Pilot’s Guide Addendum Revision 0, October 2000 Part Number 006-18235-0000 Summary This is the original release of this publication.
Note: The KMD 850 can interface with many different types of radar and the screen displays may vary compared to the examples shown in this manual. The Bendix/King KMD 850 is shown below with the Weather Radar Page selected. Rev 2 Jan/2002...
NORMAL OPERATION To display the WX Radar page press the WX button. Note that in some installations this button may have to be pushed multiple times to switch between radar and stormscope. The following illustration defines the data that appears on the WX Radar Page when the radar is active and the horizontal view is displayed: 1 Aircraft Symbol 2 Knob Function Label - Rotating the outer knob selects between...
OPERATIONAL CONTROLS SUMMARY MODE - Toggles between WX, WX/ARL (Auto Range Limiting) and MAP (ground mapping) modes. NOTE: Not all weather radar systems support Auto Range Limiting. RNG - Range keys clear the display and either increase or decrease the displayed range. VIEW - Toggles between Horizontal and Vertical Profile views.
WEATHER RADAR OVERVIEW The radar display has been calibrated to show five levels of target inten- sity: Black (level 0), Green (level 1), Yellow (level 2), Red (level 3), and Magenta (level 4). The meaning of these levels is shown in the following chart as to their approximate relationship to the Video Integration Processor (VIP) intensity levels used by the National Weather Service.
POWER ON When the KMD 850 is initially turned on and the WX key is pressed to select the WX Radar page the following screen will be displayed: This indicates that the weather radar sensor has been energized, is in standby mode, and is communicating properly with the KMD 850 MFD.
TEST MODE Rotating the outer knob one click clockwise will put the radar in test mode which should display a test pattern similar to the following: The display should show 4 bands of color with a green band from 10 to 20 miles, a yellow band from 20 to 30 miles, a red band from 30 to 40 miles, and a magenta band from 40 to 50 miles.
ON MODE Rotating the outer knob one more click clockwise to the ON position causes the radar to begin actively transmitting and scanning. The radar icon on the icon bar now indicates energy being transmitted by the radar dish. NOTE: Whenever the weather radar icon is shown as then the radar is transmitting and appropriate precautions should be taken.
VERTICAL PROFILE If the radar has vertical profile capability then the track line is also used to select the area of the storm to observe vertically. Once the track line is in the proper location then pushing the VIEW key will switch to vertical profile view as shown.
GROUND MAPPING (MAP) MODE The radar can be put into Ground Mapping mode by pressing the MODE key. Ground Mapping Mode is indicated by the word MAP in the lower left corner of the display. In Ground Mapping mode the inner knob controls the radar gain. The present setting is indicated by the white arc on the knob icon.
SET MODE When the Outer Control Knob is placed in the SET position, a display similar to Figure 1 will be displayed. These Soft Keys allow access to the functions shown. Not all these func- tions will be available in all weather radar installations.
Auto Tilt Mode Allows the antenna position to be automatically adjusted by radar system to maintain a common beam intercept point with the earth e.g. if the last 10% of the display is ground returns, then during ascent or decent the antenna tilt is automatically changed to maintain ground returns on 10% of the display.
ERROR AND FAULT MESSAGES If the KMD 850 is not receiving any data from the weather radar sensor, the following message will be displayed and the radar icon will be shown with a red circle and slash through it. This may indicate that the radar is not receiving primary power (e.g.