Tyco Electronics M7100IP 15.2.4 Aegis Private, ProVoice Private, and Voice Guard1 Private Modes

Power Up Only

If the Aegis or ProVoice circuit board is not responding, correctly, one of the following error

messages will be displayed and the radio needs servicing:

HARDWARE

ERR= 3X

3X will be a number between 30 and 38

15.2.4 Aegis Private, ProVoice Private, and Voice Guard1 Private Modes

The Aegis and ProVoice private modes allow the radio to transmit encrypted messages and

receive clear or private transmissions. The radio will transmit private if the group/channel is

programmed for private operation and forced operation is pre-programmed.

If the radio was pre-programmed for auto-select, the radio will transmit in the following modes;

• If Private mode is enabled, transmissions are always in private mode.

• If Private mode is disabled and a private call is received, the Reply transmission will be in

Private mode if the transmission is made during the scan hangtime. If the reply transmission

occurs after the scan hangtime, the transmission will be in Clear mode.

Aegis or ProVoice transmissions cannot be received by any radio set to receive a Voice Guard®

transmission. Accordingly, Voice Guard or ProVoice transmissions cannot be received by a radio

set to receive an Aegis transmission and neither Aegis nor Voice Guard transmissions can be

received by a radio set to receive ProVoice. Since the M7100IP radios are not Voice Guard

compatible, the M7100IP cannot receive a Voice Guard transmission, nor can Aegis or ProVoice

transmissions from an M7100IP radio be heard by a radio set to receive Voice Guard

transmissions.

When operating on a group or channel programmed for private mode, all transmissions will be

private transmissions and the radio will receive clear and private signals. The PVT keylight

(System Model) or OPTION keylight (Scan Model) turns ON when the private mode is enabled.

If the selected group or channel is programmed for auto-select capability, the mode can be toggled

between private and clear with the PVT button (System Model) or O button (Scan Model). Radios

programmed for forced private operation do not allow a change of the transmit mode; therefore,

the PVT button (System Model) or O button (Scan Model) has no effect.

To display the cryptographic key currently in use for either the system encryption key (for special

call such as individual, phone, all, agency or fleet) or the group/channel key (for group or

conventional calls), perform the following procedure (Not Available on P25 Trunked or

Conventional radios):

1. Press the m button.

2. Use the , or . button (ramp control) to select DISP KEY. Then press the m (select)

button.

3. Then use the , or . buttons to toggle between displaying the system key or the

group/channel key.

1 Voice Guard encryption is not supported by M7100IP Series mobile radios.