czb_a_eng (10.10.2012)
- 4 -
Kompetent für Elektroniksysteme
czb_a_eng (10.10.2012)
- 5 -
Kompetent für Elektroniksysteme
Status Display
(yellow LED)
The status display always lights, if the radio is operating.
Squelch Display
(red LED)
The squelch display lights up, while a carrier is detected by the raio receiver.
Transmission Display
(green LED)
The transmission display lights up during transmitter keying (PTT). The transmitter is keyed by pressing
the PTT button inside the handset or one of the two Call buttons.
Conversation Handling
By pressing the PTT button at the inner side of the handset, the transmitter is activated and ready to
speak. You can hear the radio transmissions in the earphone and via the loudspeaker. The loudspeaker
volume (internal and external) can be adjusted using the potentiometer at the side of the rest.
While PTT is keyed or while the handset is taken the loudspeaker can be muted (jumpers 6 and 9).
Volume
Using the potentiometer on the left side of the rest, the volume of the internal and external loudspeakers
can be adjusted. Using jumper 5 a minimum volume can be defined. The volume cannot be lower
than this value even if the potentiometer is turned to very low values.
Tone Call Encoder
The Commander Zweitbesprechung R has an internal tone call encoder for Call1 and Call2. These
calls are transmitted by pressing the respective buttons on the upper side of the handset. The tone
call is sent as long as the button is pressed.
Call 1 = 1750 Hz
Call 2 = 2135 Hz
