User's Manual

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Point 1
Mount the two antennas within 20 – 30m (outdoor applications: 40 – 50m) visible range from the microphone’s area of
intended use.
Both antennas should be within visible range from any location where the microphones are to be used. This is necessary for
ensuring optimal conditions for one antenna to receive signals when the microphone my experience the other antenna's dead
spot. In other words, the shape of the room does not matter provided that the above conditions are met. On a diagram of the
site, use a compass to draw two circles representing a radius of 20 – 30m with each antenna as the central point. If usage
locations fall within either of the two circles, such locations can be deemed to be okay.
Point 2
As a guideline, the distance between the two antennas should be 3 – 18m. Although the coverage area becomes wider
as the distance between antennas increases, this degrades the diversity effect, and signal interruption will become more
liable to occur.
If possible, locate one antenna in the direction that can be viewed from the position where the microphone is held, and the
other antenna in the opposite direction (behind the microphone holder).
Point 3
In indoor installations, as a general guideline, install antennas at a height of 2 – 4m above the floor, lest the signal be
blocked by people in the room. Keep the antennas about 30cm below the ceiling. Install the antennas so they face in the
specified directions. When making protectors, use resin or timber and do not use metallic materials.
• Avoid positioning antennas close to metallic objects wherever possible.
• Avoid mounting antennas inside a ceiling or wall.
• Select locations where the antenna can be protected from being hit and damaged by objects.
• Protect the antennas against rain water.
Important points for selecting the mounting position of diversity antennas are
as follows:
Horizontal coverage of antennas under optimal conditions
Installation of the YW-4500 Wireless Antenna
• YW-4500• WT-D5800 Rod Antenna
30 - 60 m
60 m or more