SM06 Rev. 4.10

Tac/Com Control Head Manual

3.4.2.4EDIT Switch Function - NORMAL Operation

Edit Switch

When the EDIT switch is in the centre-off locked position, all editing functions are off, and the control is in normal operation. It the switch is set to any other position, then editing is active, and either radio or channel data can be altered by the operator.

3.4.2.5Squelch Function - NORMAL Operation

HELP=Instruction

RADIO=Operation

Squelch

Pressing this button during the power-up screen presentation (when the control head is first turned on) will take the operator through detailed help screens for each function of the control head. In the normal operation of the control head, this is the only access to help (on power-up), as this button is then the manual squelch (SQ) test button for the selected radio.

The squelch test function is useful for monitoring activity on a radio when tones prevent the squelch from opening normally, or to verify volume settings or radio function. Pressing SQ over-rides all squelch logic, and lets the radio's raw receive signal pass to the ship's audio system.

When the locking EDIT switch is in any position other than OFF (centre), the HELP switch again becomes active, and provides context sensitive help for whatever function is being attempted, such as frequency entry, tones or labelling.

These two modes of help (power on and edit) provide assistance to the pilot/operator without interfering with the selected operation of the control head. If, basic help is required after the Tac/Com control head is already on, cycle the control head off again (turn all volume controls to OFF, or cycle the external breaker), and when powered up again, the option for comprehensive help will re-appear.

Jan 4, 2006

Page 3-9

ENG-FORM: 806-0106.DOT

 

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