AN/ALR-67 RWR Radar Waning Receiver

1. Radar Warning System

1.1. Control Indicator Panel

Below the AMPCD is the RWR Control Indicator Panel.
With it you can make the same settings as on the EW page of the DDI.

Control Panel for countermeasures, image from kaltokri, public domain

On the right side is the POWER button. It is used to turn the ALR-67(v) system ON and OFF.
The buttons light up when the system is turned on.

With the DISPLAY button a Limited Display mode can be activated, then only the 6 most dangerous radar sources will be displayed.
This is helpful if there are too many radar sources and you only want to see the most important ones.
If this mode is activated, the word LIMIT is also displayed in the button.

The SPECIAL button has not yet been implemented.

Pressing OFFSET button will separate overlapping symbols from each other. However, the bearing to the sources is then of course no longer accurate.
This function is also very helpful if there are many sources in a small area and you want to get a better picture of them.
If the function is activated, the word ENABLE is written in the button.

If you press the BIT button a Built-in-Test (BIT) status is displayed on the RWR. If there is an error, the word FAIL appears in the button.

Use the knob DMR to adjust the brightness with which the buttons light up. This is important for night lighting.

With the DIS TYPE rotary switch the display priority of the radar types can be set:

  • N - Normal
  • I - Intercept
  • A - Anti-Aircraft Artillery
  • U - Unknown
  • F - Friendly

These are also displayed in the status circle of the RWR display in Zone I.