HDLPS & ALT LTS In the ALT LTS. (Down) position the grille or other lights are flashing. In the HDLPS & ALT LTS (Up) position the headlights are also flashing. When the flasher is in the ALT. LTS. or OFF position the Headlights will function normally. When the Headlights are flashing, using the bright lights will override the flashers operation. An indicator above the switch shows when either flasher is on.
RADIO | Provides radio rebroadcast through the |
| volume is controlled by the P.A. Volume Control, and should always be set to its’ |
| lowest position then advanced to a comfortable level. |
| should be set at approximately 1/3 to avoid overdriving the amplifier and |
| causing distortion. |
| NOTE: The amplifier is ON in this position and drawing current. |
STBY | Standby position of the siren system. All functions are ready. Switch should |
| normally be in this position. |
WAIL | Provides a slow, continuous rising & falling sound. |
YELP | Provides a fast, continuous rising & falling sound. |
P.A. VOLUME | Provides volume control of the Public Address system and radio rebroadcast. |
| Keying the P.A. microphone overrides all siren functions, allowing its’ operation |
| while the siren is in the WAIL or YELP modes. |
AIR HORN | Pressing this button provides a simulated air horn sound. AIR HORN overrides |
| all siren functions and the P.A. system. |
If there are any questions concerning the installation or operation of the
CONTROL HEAD (FIG. 4)
Radio Rebroadcast Input
Microphone jack
3
