Pag. 7
MRK960
dual true diversity receiver
RECEIVER 1 and RECEIVER 2
Area A
: 3 LED bars:
• two bars for the RF levels in dBuVolt (diversity A & B antenna level),
• FM modulation of the received channel (modulation in % referred to the nominal deviation)
• LIN: audio in line output active
• COM: audio in com output active (optional)
• GPI: g.p.i. command thru opto-isolated relay, active (optional)
• DATA: data subcarrier from microphone transmitter detected
Area B
: display (256 x 64 pixels yellow OLED display)
Area C
: 3 push buttons (membrane).
The function of each button (upper, middle and lower) will be readable from the context menu on the
display.
Area D
: Push rotary knob and light indicator
Warning (YELLOW) and Alarm (RED) light indicator:
•
Yellow Fixed
light indicator (Warning) when there is no audio in both the audio outputs (COM and
LINE)
•
Red Slow Blinking
light indicator (Low Alarm) when the battery level of the transmitter is ≤25%
•
Red Fast Blinking
light indicator (Medium Alarm) when the battery level of the transmitter is ≤12%
•
Red Fixed light indicator
(High Alarm) when a booster (A or B) has a short circuit. Moreover the fol-
lowing message appears on the OLED display: “Over Current on antenna A/B”
MONITOR
Monitor 1 and 2
:it activates monitor audio on jack output (6.3mm - ¼”) for receiver
1 and 2, respectively (a green LED is lighted when audio is enable). Audio level can be
adjusted with the rotary knob. The red led (CLIP) indicates a clipping in the audio moni
-
tor output.
POWER & BOOSTER
BOOSTER
:it activates antenna powering (boosters) with 12VDC (200mA max) and the
green LED is lighted. Blinking LED indicates a faulty condition, in this case power down
the device and check for short circuits or overloads in the RF cables or boosters.
Booster supply for antenna A and antenna B are indipendent, switchable from the RA
-
DIO > OPTIONS menu.
POWER
: ON/OFF square powering button turns on/off the receiver. When in OFF posi
-
tion both phases are disconnected from power.
A
B
C
D