4-8
4.3.1 Keypad "Beeps"
Audible "Beeps" are generated when a key is pressed (default condition). Tones can be
enabled/disabled by toggling the "E","8" keys.
Press
to disable Key"Beeps".
Press
to enable Key "Beeps".
4.3.2 Keypad and LCD Display Lighting
Three Display and keypad lighting modes are available to the operator. The default mode provides no
keypad or LCD display backlighting. In Continuous mode, display backlight and keypad lighting is
permanent until power is removed or until lighting mode exited. In automatic mode, display backlight
and keypad lighting is off until a key on the keypad is pressed or until the lighting
mode is exited.
Press
to initiate automatic lighting.
Press
to initiate continuous lighting.
Press
to turn to lighting OFF.
4.3.3 Transmitter Time-out
A 90 second time-out timer is provided to prevent accidental continuous transmission.
Press
to initiate 90 second Tx time-out protection.
Press
to disable 90 second Tx time-out protection.
4.3.4 Selecting a Frequency
To Select a frequency press the keypad digits in the sequence indicated (Refer to Fig 4-1, Operators
Switches Controls and Indicators).
1st Digit - must be 1 for 100 MHz, all other digits are ignored.
2nd Digit - must be 1,2 or 3, all other digits are ignored.
3rd Digit - must be any digit within the range of 117 MHz to 138 MHz.
4
th
and 5th Digit - Can be any digit. 6th Digit - Can only be 0 or 5.
Summary of Contents for TiL-91-DE/8.33
Page 29: ...4 14 Figure 4 3 Fixed Channel Jumper Locations...
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