MIPRO ACT-311 Single-Channel Diversity Receiver - Manual (Page 14)

General Tips for Improving System Performance
1. Since the installation of the antenna influences the operating efficiency of the
receiver, the most important rule is to minimize the distance as much as possible
between the receiving antenna and the microphone for the best 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. The antenna socket provides an 8V DC biased output. RF 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.
4. If extended reception distance is needed, installing a MIPRO AT-90W directional
antenna kit, which includes internal boosters will increase the reception distance.
5. Proper antenna distribution is vital to achieving ideal performance from multiple
wireless systems operating in the same venue. To greatly reduce antenna clutter in
multi-system installations, a MIPRO AD-707a, UHF antenna divider system is
recommended. Each AD-707a 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-90W wide-band
directional antenna, the AD-707a antenna divider provides optimal signal reception
with minimal dropouts or interference.
6. 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.
Wireless Accessories & Replacement Parts
FB-71: Rackmount kit fits 1 ACT-311B/ACT-311 or ACT-312B/ACT-312 receiver
alone.
FB-72: Rackmount kit fits 1 ACT-311BT/ACT-311T or ACT-312BT/ACT-312T receiver
alone.
FBC-71: Rear-to-front cables only(1-pair). It allows front mount antenna placement
for improved reception quality.
AT-20: Detachable 1/2 Wave Coaxial Antenna.
AD-707a: UHF 4-channel Wideband Antenna Divider System (480MHz ~ 1GHz).
AD-90w: UHF Wideband Directional Antenna (480MHz ~ 1GHz).
AT-70: UHF Ground Plane Antenna (1-pc, 2-pcs recommended).
AT-70B: UHF Antenna Signal Booster (1-pc, 2-pcs recommended).
AD-90S: UHF 4-Channel Wideband Power Splitter.
AT-90A: UHF 4-Channel Wideband Power Amplifier.
AD-808: UHF 4-Channel Active Antenna Combiner.
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Diversity Wireless Systems Diversity Wireless Systems