Argus Radar - RADAR CONFIGURATION
988-10187-004 3.17
3.9.1 Video Adjust Mode
Pressing the B button (password protected) of fig. 3.9.1, page 3.16, the system goes into
“VIDEO ADJUST MODE ON” (under normal conditions this function is set to OFF). When
carrying out this operation the TEST video is activated on the main PPI display; in other
words, a large ring is created and the following actions are automatically carried out:
• A long impulse is emitted.
• The gain is forced by 100%.
• The video palette is changed in order to highlight the saturated echoes with a red
colour (everything that is not saturated assumes a yellow colour).
To adjust the video the scale must be set at 0.75 NM or 1.5 NM (refer to the Argus user
manual 988-10185-004, paragraph “Range scale increase/decrease”). Using the arrows G
(Fig. 3.9.1, page 3.16) increase or decrease the value that appears in window F (Fig.
3.9.1, page 3.16).
The purpose of this operation is to eliminate the saturated echoes and therefore make the
various red zones disappear from the video screen.
• If red zones are seen on the screen, decrease the value in window F (Fig. 3.9.1,
page 3.16) to make them completely disappear (some limited red zones are
acceptable).
• If the screen is completely yellow, increase the value in window F (Fig. 3.9.1, page
3.16) to make the red zones appear and then decrease the value to remove as
many red zones as possible.
A datum that assists in understanding that the adjustment is correct is the value in window
A (Fig. 3.9.1, page 3.16). This value oscillates during adjustment and it can assume three
colourations:
• Yellow: when the value drops below 240 indicates that the value should be
increased, but more than 220 is anyway acceptable.
• Red: when the value exceeds 250 indicates that the value must be decreased.
• Green: when the value is between 240 and 250 indicates that the value is correct.
End the adjustment operation by pressing push button B (Fig. 3.9.1, page 3.16) into OFF
mode. Push button H (Fig. 3.9.1, page 3.16) permits the automatic adjustment of the
video.
IMPORTANT
ALWAYS PRESS THE PUSH BUTTON E “ACCEPT” TO SAVE AND MAKE EFFECTIVE THE
MODIFICATIONS CARRIED OUT.
3.9.2 Adopted communication configurations
A text appears in box I (Fig. 3.9.1, page 3.16). This text varies on the basis of the
communication hardware configurations adopted between the console and the transmitter.
Pay attention to what is shown, otherwise the adjustment operations could become
useless and bring about an incorrect visualisation of the radar video.
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