Tyco Electronics P5400 manual Digital Voice Operation

MM-012099-001, Rev. B

2.Using the or keys, scroll until the cursor (>) appears to the left of “TX POWER” in the display.

3.Press again to toggle between High and Low power.

4.“POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

10.15.2Using the Pre-Programmed Option Button

Press the Option button. “POWER = HIGH” or “POWER = LOW” will appear momentarily on the top line of the display.

10.16DIGITAL VOICE OPERATION

Digital voice programmed systems have three (3) different voice modes: clear (analog), digital, and private (encrypted). The voice modes are programmed on a per-group basis within each trunked system and on a per-channel basis within each conventional system.

10.16.1Clear Mode

The Clear Mode is a voice mode in which the radio transmits and receives only clear (analog) voice signals. These analog signals are non-digitized and non-encrypted. Clear mode transmissions can be monitored easily by unauthorized persons.

Groups or channels programmed for clear operation cannot transmit or receive digital or private messages.

10.16.2Digital Mode

The Digital Mode allows the radio to transmit and receive digitized voice signals. Digital signals provide improved weak signal performance and cannot be easily monitored with a standard receiver. Groups programmed for digital operation transmit only digital signals. Message trunked group calls and individual phone calls (I-Calls) are answered back in the mode in which they were received assuming the call or hang time is still active. Individual phone, all call, and emergency calls are transmitted clear if the digital mode is disabled or inoperative.

1.If receiving an analog message trunked call, the radio responds in the analog mode during the hang time on the working channel.

2.If receiving an analog I-Call, the radio responds in the analog mode during the hang time.

3.When using the *WHC* feature to respond to an I-Call (after the hang time has expired), the call is transmitted in the mode defined by the system mode as programmed for the current system if the ID being called is not in the I-Call list. If the ID is in the I-Call list, then the call is transmitted as defined by the I-Call mode programmed in the list for that ID.

The overdial DTMF tones are not available while in the Digital Mode.

10.16.3Private Mode

The Private Mode allows the radio to transmit encrypted messages and receive clear or private transmissions. The radio transmits private if the group is programmed for private operation and forced operation is pre-programmed. If auto-select operation is pre-programmed and the radio is in the Private

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