MIPRO ACT-51 Single-Channel Diversity Receiver - Manual (Page 11)

The battery meter is lit when the transmitter is powered on. The battery meter gives a
percentage (%) indication of remaining battery life, as shown above. Replace with new,
fresh batteries when battery indicators fall to 10% (1 indicator remaining).
The BAT cursor starts blinking when transmitter is powered-on and signal is received.
After 3~5 seconds, the cursor will stop blinking and accurate battery level will be
displayed.
BAT: Transmitter Battery Meter (display in receiver)
100% 90% 80% 40% 10% 0%
BAT BAT BAT BAT BAT BAT
AUTO POWER ON/OFF SWITCH
Battery Status:
OFF Position:
!Power-On Receiver: Press and hold POWER button for 1~2 seconds. The panel will
be turned-on (factory default position = OFF)
!Power-Off Receiver: Press and hold POWER button for 1~2 seconds. The panel will
be turned-off.
NOTE: The receiver panel will dim automatically if no signals are received or any
button is pressed within 5 seconds after powered-on.
!Lit Panel Continuously: After powered-on, press the POWER button twice within 1
second will force the panel to be lit continuously.
!Cancel Lit Panel Continuously: Press the POWER button twice within 1 second again
will cancel it.
ON Position:
!Power-On Receiver: The receiver turns on automatically when plugged-in during
“ON” position.
!Power-Off Receiver: Press and hold POWER button for 1~2 seconds. The panel will
be turned-off.
NOTE: The receiver panel will dim automatically if no signals are received or any
button is pressed within 5 seconds after powered-on.
16 17
Diversity Receivers Diversity Receivers
1. Since the installation of the antenna influences the operating efficiency of the
receiver, the most important rule is to minimize the distance and maintain a line-of-
sight between the receiving antenna and the transmitter for optimal reception and
performance.
2. Use MIPRO supplied antennas to ensure proper receiver sensitivity.
The external DC power supply should not fall under 12V, otherwise it would not
work properly. If it is over 15V, some components of the receiver will be damaged.
3. A built-in worldwide approved switching power supply assures stable performance in
the range of 100~240V AC power input.
4. The antenna socket provides an 8V DC biased output. Therefore, shorting on the
antenna socket should be avoided. Temporary shorting on the antenna socket will
not affect system performance; however, continuous shorting on the antenna socket
will cause permanent system damage.
5. If extended reception distance is needed, installing a MIPRO AT-90, directional
antenna kit, which includes internal boosters will increase the reception distance.
6. Proper antenna distribution is vital to achieving ideal performance from multiple
wireless systems operating in the same environment. To greatly reduce antenna
clutter in multi-system installations, a MIPRO AD-707, UHF antenna divider system
is recommended. Each AD-707 supports up to four UHF diversity receivers to
operate from a single pair of antennas. When combined with an AT-70A omni-
directional extension antenna and an AT-70B antenna booster or an AT-90
directional antenna, the AD-707 antenna divider provides optimal signal reception
with minimal dropouts or interference.
7. MIPRO's factory preset Interference-free channels within the same channel group
are recommended to ensure optimum performance from multiple wireless systems
installed in the same venue. Use of preset Interference-free channels from different
channel groups may cause interference, thus is not recommended.
GENERAL TIPS FOR IMPROVING SYSTEM PERFORMANCE