Tyco Electronics M/A-COM MM23016 - Manual (Page 30)

MM23016, Rev. C
30
7.21 RECEIVING AND TRANSMITTING VOICE CALLS
As soon as the radio completes the startup/login/provision/self-test sequence and registers on the
OpenSky network, voice calls from talk groups in the active profile will be audible.
7.21.1 Receiving a Voice Call
No action is required to receive a voice call. The display responds to incoming voice calls as follows:
• When the dwell display is set to received talk group and the scan mode is Normal or Fixed:
a. If the received talk group matches the selected talk group, then the alias (if available) or user ID
of the incoming caller is displayed.
b. If the received talk group does not match the selected talk group, then the received talk group
name is displayed
• When the dwell display is set to received talk group and the scan mode is None:
a. If the received talk group matches the selected talk group, then the alias (if available) or the user
ID of the incoming caller is displayed.
b. If the received talk group does not match the selected talk group, then None is displayed.
• When the dwell display is not set to received talk group, then there is no display indication of an
incoming call.
Refer to Section 7.25 for detailed information on talk group scanning. Refer to Section 7.30 for detailed
information regarding sending and receiving encrypted calls.
7.21.2 Transmitting a Voice Call
Transmit a voice call as follows:
1. Turn the radio on.
2. If required, login to the network using a user ID and password (see S ection 7.4).
3. Select the desired talk group for transmitting on.
4. Press and hold the Push-to-Talk (PTT) button on the hand-held microphone, pause for a moment,
and then speak normally. For maximum clarity, hold the microphone approximately 1 ½ inches from
the mouth and do not shout or whisper into it. If the call is queued by the network, wait for the grant
tone to sound before speaking.
5. Release the PTT button when finished speaking.
Refer to Section 7.30 for detailed information regarding sending and receiving encrypted calls.
7.22 ADJUSTING AUDIO TREBLE LEVEL
The tone of received signals can be adjusted using the radio’s “Treble Menu” as follows:
1. Use to scroll through the menu until “Treble Menu” appears. The radio’s current treble level
setting indicates in the top line of the display. There are four levels available: low, medium, medium-
high, and high.
2. Use to increase or decrease.
3. Press the MENU button or wait a few seconds to return to the Dwell Display.