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3.4.2 Mounting Antennas
on Floor Stands
Fig. 3: Antenna mounted
on a floor stand.
3.4.3 Wall/Ceiling
Mounting
Fig. 4: Minimum distances
from plane surfaces.
Fig. 5: Minimum distances
from floor and ceiling.
3.5 Wiring
Note:
Important!
14
3 Getting Started
•
When mounting the antenna on a floor stand, be sure to proceed as follows:
≥ 70cm
˛
˛
≥ 150cm
≥ 10cm
˛
˛
˛
≥ 50cm
≥ 50cm
≥ 50 (15) cm
≥ 15cm
1. Connect the ANTENNA output on each transmitter to one of the INPUT connec-
tors on the antenna combiner.
Use the shortest possible RG58 antenna cables.
2. If several signals are radiated by a shared antenna, intermodulation of the various
carrier frequencies will cause spurious emissions.
To avoid technical and legal problems (official limits for RF output and spurious
emissions), set the RF OUTPUT level on each transmitter as follows (also refer to
the IVM 4 User Manual):
Transmitters
2 to 4
≥4
•
If you need to use a multichannel system with a higher RF output, please contact
AKG Sales at sales@akg.com.
3. Connect the antenna to the ANTENNA OUT connector on the antenna combiner.
•
Please note that these antennas may boost their RF output (ERP) in their
!
preferred directions. In order to keep RF output within legal limits, make
sure to use antenna cables of the correct length for each type of cable, e.g.,
RG58: 16 ft. (5 m) for an RA 4000 W or 33 ft. (10 m) for an SRA 2 W.
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.
1. Mount the antenna at least 10 cm (4 in.) in front of and
at a minimum 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).
Max. RF OUTPUT per transmitter
20 mW
10 mW
AKG SPC 4
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