m4a5a_v320_eng (14.02.2013) - 7 -
Kompetent für Elektroniksysteme
Talking to the Radio
There are two different ways to talk to the radio.
By pushing the red PTT button the transmitter is switched on and the transmission LED is
lit. This can also be achieved by an external PTT (see Connections). Now, talking to the radio is
possible via the gooseneck microphone. After releasing the PTT button, the person on the radio
can be heard in the loudspeaker. The loudspeaker LED is lit. If the conversation is finished, the
loudspeaker can be switched off using the loudspeaker button
The transmitter (and the transmission LED) can also be switched on by pushing the PTT button at
the inside of the handpiece. Accordingly, the microphone and the loudspeaker of the handset are
used for conversation in this case. The conversation is terminated by simply hanging up the hand-
piece.
The loudspeaker is switched on after sending a call by pushing the red or the external PTT button
or upon reception of a call. However, it can also be activated manually via the loudspeaker button.
The loudspeaker is switched off manually (loudspeaker button) or automatically after a certain time
is elapsed. This loudspeaker timer is started when the loudspeaker is turned on and is reset as
long as a carrier is present or PTT is keyed.
If desired, this timer can also be disabled. Furthermore, the loudspeaker can be configured for
open-mode („always-on“, see Table of Registers, Register 050).
In order to set the desired volume the volume button is pushed (Major 5a) or the loudspeaker
button is pressed long (Major 4a). The display now shows „volume:“ and the present value (0-9).
Now the new volume can be set via the keypad. The chosen value is saved permanently (also
after power-off).
The Major can remember up to 10 short calls. These are transmitted by pushing the short call but-
ton followed by the respective number (0-9).
These short calls are programmed in the registers 000 to 009 (see Table of Registers, Registers
000-009)
With the standard settings, „select number:“ followed by the previously transmitted call is displayed
in the LCD. Of course, after power-on no number is displayed.
In order to send a call the variable digits of the tone sequence (see Table of Registers, register
010) first have to be entered. The tones entered via the keyboard are displayed right-justified in the
LCD. The transmission of the call is achieved by pushing the call button . Alternatively, calls
can be sent automatically after the last free number is entered (see Table of Registers, register
082).
General Handling
Switching of the Loudspeaker (on/off)
Volume Settings
Short Call
Call Options
