Introduction

The Red First Strike and Freeze Frame facilities, described in this chapter, are additions to the Basic Operation described in Chapter 3 of the BridgeMaster E User Guide 65800010A.

Red First Strike

The Red First Strike facility allows fast moving targets such as helicopters and other aircraft to be easily identifided by red video returns in the video circle. This does not affect the normal tracking of targets.

The soft key for selecting red first strike is located at the bottom left side of the display. The caption inside the key is NAV to indicate that standard video presentation is selected, or AIR to indicate that red first strike presentation is selected.

Selecting Red First Strike Presentation

1.	Position the screen cursor over the NAV softkey, see example left.

2.	Left click to select red first strike video presentation.

The caption in the soft key will change to AIR.

Returning to Standard Video Presentation

1.	Position the screen cursor over the AIR softkey, see example left.

2.	Left click to select standard video presentation (i.e, to remove red first strike). The caption in the soft key will change to NAV.

Freeze Frame

The Freeze Frame facility allows the video picture to be frozen, for example, when ship is on radio silence. The freeze frame control can be implemented either locally (LOC) by the operator via the Freeze soft key (bottom left hand corner of screen - see example left), or remotely (REM) from an external input. If either control is set to the frozen state, the video and trails are frozen on the screen and are not updated again until both controls are set to the unfrozen state.

The true motion origin is not updated during Freeze Frame. When leaving Freeze Frame, there will be a picture clear if the picture was in Freeze Frame for more than 10 seconds.

LOCAL - Operator Control

From the unfrozen state,

1.	Position the screen cursor over the FREEZE soft key.

2.	Left click to freeze frame.

The caption inside the soft key will change to FROZEN (LOC)

The display can be unfrozen by a further left click on the soft key, but is dependant on the state of the remote control. See Tables on next page.

REMOTE - External Control

Whenever the external remote control (REM) is operated to freeze frame, the soft key caption is changed to FROZEN (REM) irrespective of the operator (LOC) setting.

When the remote control is set to unfreeze the display, the soft key caption will change to FREEZE (if the local control is not in force) or FROZEN (LOC). See Tables on next page.

The following tables illustrate the relationship between the local (LOC) and remote (REM) Freeze Frame controls.

Actions on left click on FREEZE soft key	Operator control (LOC) state
OFF to ON	ON to OFF
External (REM) state	OFF	Switches to Freeze Frame.

Operator control set on.

Soft key text changes to FROZEN (LOC).	Switches off Freeze Frame.

Operator control set off.

Soft key text changes to FREEZE.
ON	Remains in Freeze Frame.

Operator control set on.

Displays 'External Freeze Frame on' prompt.

Soft key remains as FROZEN (REM).	Remains in Freeze Frame.

Operator control set off.

Displays 'External Freeze Frame on' prompt.

Soft key text remains as FROZEN (REM).

Actions on change of external State	Operator control (LOC) state
OFF	ON
External (REM) state	OFF to ON	Switches to Freeze Frame.

Soft key text changes to FROZEN (REM).	Remains in Freeze Frame.

Displays 'External Freeze Frame on' prompt.

Soft key text changes to FROZEN (REM).
ON to OFF	Switches off Freeze Frame.

Soft key changes to FREEZE.	Remains in Freeze Frame.

Displays 'External Freeze Frame off' prompt.

Soft key text changes to FROZEN (LOC).

Warning Prompts

The prompts indicated in the Tables on the previous page are displayed (in bottom right hand corner of display) even if the radar is in Standby mode.

Whenever the display is Frozen (LOC or REM), an attempt to select any of the functions listed below, will result in the 'In Freeze Frame' prompt being displayed.

Range scale

Presentation mode

Motion mode

Centre

Trails

Off-centre own ship

Intentionally Blank