mbos8a_eng (13.03.2014)
- 4 -
Kompetent für Elektroniksysteme
mbos8a_eng (13.03.2014)
- 5 -
Kompetent für Elektroniksysteme
Control and Display Elements
(continued)
Keyboard
The keyboard holds the following functions for each of the eight channels:
Kreis
selection button
increase volume
decrease volume
mute loudspeaker
Ruf 1
button for tone call 1
Ruf 2
button for tone call 2
Senden
PTT button
Carrier Display (Squelch)
For each of the eight circuits there is a separate carrier display (squelch) LED . To
control the carrier display the squelch input can either be switched for ground (
GND
) or
to
+12V
. The logic of the squelch input can be configured separately for each radio with
the jumpers
J18
to
J25
.
PTT Display
For each of the eight circuits there is also a separate PTT display LED , that lights if
the transmitter for the respective circuit is keyed by pressing PTT, call 1 or call 2. If a PTT
display flashes, another control set is transmitting on this radio circuit.
Loudspeaker Display
The loudspeaker display LED lights either if loudspeaker AF is active or if the loudspeaker
is muted for that circuit.
The logic of the loudspeaker display can be programmed in
register 030 / bit 0 of the
EEPROM
:
register 030
loudspeaker display lights when
bit 0:
0 = loudspeaker AF is active
1 = loudspeaker AF is muted
Selection Display
The selection display LED lights, if the respective circuit was selected and is active. If
programmed in that way, the LED flashes if the circuit is selected by a different Major.
Summary of Contents for Major BOS 8a
Page 1: ...Major BOS 8a...
