Ericsson LBI-38377E manual Alert Tones, Carrier Control Timer, Channel Busy, Receive only Channel

ALERT TONES

The M-PA uses alert tones or "beeps" to indicate various operating conditions. Alert tones may be enabled or disabled via the menu mode if the "ALERT" feature is programmed. See "ALERT" MENU for details. The alert tones may be disabled when the radio is programmed.

CARRIER CONTROL TIMER

This feature, programmable on a per channel basis, prevents unnecessary channel traffic and ra- dio damage in the event of a "stuck" mic. If the programmed timer times-out during a transmission the radio will sound an alert tone and disable the transmission. The beeping tone will continue until the PTT BUTTON is released. Releasing the PTT BUT- TON resets the timer.

CHANNEL BUSY

TON is pressed. This feature is programmable on or off on a per channel basis.

RECEIVE ONLY CHANNEL

If the selected channel is programmed as receive only, the radio will sound an alert tone if a transmis- sion is attempted. "RX ONLY" is displayed.

RADIO/CHANNEL FAILURE

If the synthesizer is unable to lock correctly on the selected channel, or another radio failure occurs, an alert tone will sound. If incorrect programming is detected or the synthesizer fails to lock, the display flashes "NO LOCK" then the selected channel’s name.

OPERATION

POWER-UP

If the radio is receiving a signal when the PTT BUTTON is pressed, an alert tone will warn the operator that the radio is receiving a carrier and the transmission will not occur. "RX BUSY" is displayed and the alarm is sounded as long as the PTT BUT-

After the battery pack and antenna have been installed, turn the radio on by sliding the ON/OFF SWITCH on the battery pack up. After the radio has completed a power-up self-test, it will begin operation on the last operating state as displayed in the LCD.

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