Avlex ACT-30Hr Handheld Transmitter Microphone - Manual (Page 2)

Handheld Transmitter Handheld Transmitter
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Profile
There are two types of antenna design for the
handheld transmitter microphones “built-in” and
“external”. The “built-in” design is normally
incorporate upper side of PCB in the housing and
the microphone capsule module as transmitting
antenna. The advantages are to avoid the antenna
breakage due to external design, inconvenience and
able to shorten the microphone housing design.
However, its drawbacks are poor transmission
efficiency especially when replacing microphone
capsules, unstable and deteriorated transmission
efficiency if it is gripped over the antenna area. The
“external” design enhances transmission efficiency
and stability, however, it causes inconvenience and
it may be damaged by accidental crashing.
MIPRO's patented design provides an ideal solution.
The antenna is integrated in the battery holder at
the bottom side of the housing, so it successfully
combines the advantages of both “built-in” and
“external” design.
The matched antenna and transmitter circuit
enhance transmission efficiency and stability
regardless capsules and battery replacement, or
change of grip positions and housing materials.
Microphone capsule, audio modulation, RF output
and antenna transmission constitute the perfect
straight-line layout of the transmitter PCB so that it
can achieve the best transmission quality and
efficiency. ACT-30H/ACT-30Hr are the most evolved
design model for built-in antenna transmitters
nowadays.
1 Profile
2 Key Features
3 Handheld Controls and Indicators
5 O
9 General Tips for Improving System
Performance
perating Instructions for Insertion &
Removing Battery
6 Operating Instructions
7 LCD Screen
8 Battery Status
Contents