Operating Manual

3-12 5100 ES Models II/III Portable Radio Operating Manual March 2008
General Operation
Keypad Lock and Permanent Lock functions. If this function is not selected, both the
front and side panel keys are disabled. The PTT switch is never disabled.
• The Channel Selector and Volume controls can be programmed so that they are locked
by the Keypad Lock function.
• The “Channel Selector Enabled” function can be programmed globally. If this is not
selected, the channel selector is always disabled regardless of the Permanent Lockout or
Keypad Lock status. Channels can then be selected only by direct channel select (see
Section 3.3).
• The volume control is permanently disabled if a Volume Up/Down option switch is
programmed regardless of the Permanent Lockout or Keypad Lock status. Refer to
Section 3.1.3 for more information.
• There is the option to enable the backlight when a key is pressed in the Keypad Lock
mode. There is also the option when programming conventional channels to disable
DTMF dialing.
3.7 Setting Squelch
This radio does not have a squelch control. The squelch level is preset during alignment. If
the keypad programming feature is available (see Section 5.15), the squelch level can be
changed by the user on each conventional analog channel.
Note The Keypad Programming feature is available to Federal Government users only.
3.8 Transmit Disable
Transmitting can be disabled on each conventional, SMARTNET, SmartZone, and P25
Trunked channel so that the channel is monitor-only. When transmitting is attempted on a
receive-only channel, “Rx Only” is displayed and an error tone sounds.