Northrop Grumman Sperry Marine VisionMaster FT, User Manual

Page: 64 / 533

Basic Operation of Radar Radar/Chart Radar User Guide
3-4 65900010
Dual Radar – Transmit and Video Mode Selection
A Dual Radar system allows the overlay of video from two separate
transceivers on one display. The Standby/Transmit status of each
transceiver may be independently selected, and the video display for each
transceiver channel switched on and off.
Selecting Transmit Mode
A dual radar system enables each transceiver to be individually switched
from Standby to Transmit and back again. When either channel is
switched to Standby, a confirmation prompt is generated (see Returning to
Standby Mode).
Video On/Off Control
The video for each transceiver channel may be switched on and off
independently of the transceiver’s Standby/Transmit status.
To switch off the video at channel 1 or channel 2 click on the video button.
If video is switched off at channel 2 (with channel 2 still in Transmit), or the
video is automatically suppressed if channel 2 video origin is too far from
the centre of the display area, the video is automatically switched back on if
channel 1 is switched to or forced into Standby, or the video at channel 1 is
switched off.
When video is switched off for a channel and
the channel’s transceiver is in Transmit, the
video button is displayed with a red diagonal
line through the icon. Video will continue to be transmitted via the other
channel.
If the origin of channel 2 video is automatically suppressed while channel 1
is in Standby the message
VIDEO OFF is displayed in red at the bottom of
the video circle. The message is removed when either channel 2 video re-
appears or channel 1 is switched to Transmit.