Placement; Mounting Antennas On Floor Stands; Wall/Ceiling Mounting; Connecting Antennas - AKG WMS4000 Mode D'emploi

Reflections off metal parts, walls, ceilings, etc. or the shadow effects of musicians and other people may
weaken or cancel the direct transmitter signal. For best results, place the antennas as follows:
1. Place the antennas near the performance area (stage). Make sure, though, that the transmitter will
never get any closer to the antennas than 16 ft. (5 m). Place the two antennas at least 8 inches. (20 cm)
from each other.
2. There should always be a direct line of sight between the transmitter and antennas.
3. Place the receiver at least 5 ft. (1.5 m) away from any big metal objects, walls, scaffolding, ceilings, etc.
4. Do not place antennas in wall recesses.
5. Place antennas at least 5 ft. (1.5 m) away from any equipment that may emit RF radiation such as light-
ing racks, fluorescent lamps, digital effects units, or PCs.
6. If you set up two antennas side by side (e.g., for diversity reception), check that the two antennas are
spaced at least 20 cm (8 in.) apart.
When mounting the antennas on floor stands, be sure to proceed as
follows:
1. Use the supplied SA 63 or the integrated stand adapter to mount
the antenna on the boom of a boom stand.
2. Pull the boom out all the way to one side to make sure the
antenna will be at least 28 inches (70 cm) away from the stand.
3. Extend the stand high enough to place the boom at least 6 ft.
(1.8 m) above the floor.
4. Wind the antenna cable around the boom. Do not allow the cable
to sag below the boom because this may degrade the reception
quality.
If you mount your antennas on a wall or ceiling, be sure to keep the following minimum distances:
1. Mount the antenna at least 10 cm (4 in.) in front of and at a min-
imum lateral distance of 50 cm (20 in.) from any walls or other
plane surfaces, metal grids, or metal scaffolding.
2. Make sure the antenna will sit at least 15 cm (6 in.) above the
floor or 50 cm (20 in.) from the ceiling (or 15 cm (6 in.) if you route
the cable to the antenna from above).
For a single-channel system, you need no antenna splitter. Connect the antennas to the receiver directly.
1. Measure the cable run between the SR 4000 receiver and each SRA 1 antenna.
2. Refer to Table 1 on page 17 to find out whether you will need to break the cable run down into sev-
eral cables and insert one or two AR 4000 antenna boosters. Table 1 states the maximum acceptable
cable lengths for RG58 and RG213 cables separately.
SRA 1
RG58: 0 - 13 m / RG213: 5 - 26 m
A B
AB 4000
SRA 1
A: RG58: 0 - 13 m / RG213: 5 - 26 m
B: RG58: 6 - 46 m / RG213: 12 - 97 m
3. Connect an antenna cable to each antenna.
AKG PS 4000
B
AB 4000 ASU 4000
3 Getting Started
≥ 70cm
˛ ˛
≥ 180cm
≥ 10cm
˛ ˛ ˛ ˛
≥ 50cm ≥ 50cm
≥ 50 (15) cm
≥ 15cm
<- DC/AC ->
SR 4000
<- DC/AC ->

3.3.1 Placement

3.3.2 Mounting Antennas on
Floor Stands
Fig. 3: Antenna mounted on floor
stand

3.3.3 Wall/Ceiling Mounting

Fig. 4: Minimum distances from
plane surfaces.
Fig. 5: Minimum distances from
floor and ceiling.

3.4 Connecting Antennas

3.4.1 Single-channel System
with SRA 1 Passive Antennas
Refer to Table 1 on page 17
and fig. 6.
Fig. 6: Wiring a single-channel
system with passive antennas and
different antenna cable runs.
15