Eads Two-Way Radio, Руководство пользователя

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Y o u r r a d i o
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PTT (Push-to-talk) key
Your radio can make and receive one-way and two-
way calls. During a one-way call, only one person
can speak at a time, and the speaker must press and
hold the PTT key. During a two-way call, the PTT
key is not used, and you can speak as in a
conventional phone call.
To speak during a one-way call, press and hold the PTT key. You
can start speaking after a short tone is played and
(transmitting)
appears on the display. Release the PTT key to let the other party
speak.
(receiving) is displayed when you receive a one-way call.
Express calls and group calls are one-way calls. Phone calls are
normally two-way calls, but your radio is also capable of making and
receiving one-way phone calls. The network changes the call type if
needed.
For group calls in the network mode, you can set the PTT key to
make a call either always to your selected talk group, or to the talk
group whose name is on the display (either the active scanned
group or the selected group). See PTT key settings on page 43.
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Duty key and fast menu key
The duty key is located above the PTT key and the fast menu
key below the PTT key; see the picture in the PTT (Push-to-talk)
key section. In the network mode, you can set the duty key to
work in one of four ways; see Duty key setting on page 94. In the
direct mode, pressing and holding the duty key
makes a call to
the first group on the selected channel.
The fast menu key is used for accessing the fast menu. For
details, see Fast menu on page 37.