Professional UHF
Wireless Systems
ATW-49SP Active Antenna Splitter Kit
Installation and Operation
5. NOTE: ATW-A49 antennas do not require power. If you are
using ATW-A49 antennas, skip Step 5. If you have an antenna
system that requires power (such as an antenna preamp or booster)
you must open the ATW-49SP Active Antenna Splitter assembly and
activate a switch on the circuit board. (This enables the splitter to
pass power through to the antenna.) Current consumption of the
preamp or booster should not exceed 100 mA.
The unit is shipped with the switch in the “off” position. To flip the
switch to the “on” position, first be certain the splitter is not
attached to any power source. Next, use a Phillips screwdriver to
remove the two screws on the Active Antenna Splitter's access
panel; remove the access panel; use tweezers to flip the switch
gently into the “on” position. Finally, replace the access panel and
securely tighten the two screws. (See Figure 2.)
The Audio-Technica ATW-49SP Active Antenna Splitter Kit includes two
one-input, two-output Active Antenna Splitters designed for use with
Audio-Technica 4000 and 5000 Series UHF wireless receivers and
ATW-A49 LPDA antennas.* Each Active Antenna Splitter is a
broadband device (frequency range from 440 to 900 MHz) that splits an
incoming RF signal into two identical outgoing RF signals. One set of
Active Antenna Splitters enables one set of antennas to feed wireless
receivers of different frequency bands. To compensate for RF signal
loss associated with signal splitting, the Active Antenna Splitter
provides unity gain: there is no RF signal loss from the original antenna
signal.
Each kit includes: two Active Antenna Splitters, four 18" BNC-to-BNC
RG 58 coaxial antenna cables, and two BNC-to-BNC barrel adapters.
NOTE: The ATW-49SP Antenna Splitter requires +12V DC power from
any Audio-Technica 4000 or 5000 series receiver or +5 to +14V DC
from any wireless receiver or antenna distribution system that offers
antenna power. At least one of the receiver's or distribution amplifier's
antenna terminals must provide this voltage source. A light on each
Active Antenna Splitter indicates that power has been correctly applied.
* The ATW-49SP Active Antenna Splitter Kit is also suitable for use
with other receivers that are in its specified band, use BNC antenna
connectors, and provide antenna terminal voltage; it may also be used
with a variety of other antennas from Audio-Technica and other
manufacturers.
HOW TO INSTALL THE ATW-49SP ACTIVE ANTENNA SPLITTERS
1. Connect one 18" BNC-to-BNC RG 58 coaxial antenna cable (four
supplied) to an OUT connector on one Active Antenna Splitter
(two supplied). Connect the other end of this cable to the ANTENNA
A input on either a receiver or distribution amplifier, as shown in
Figure 1. NOTE: A BNC male-to-male barrel adapter (two supplied)
may be used in place of this cable, for convenience.
2. Use a second 18" BNC-to-BNC RG 58 coaxial antenna cable to
connect the opposite OUT connector on the Active Antenna Splitter
to the ANTENNA A input of a second receiver or distribution
amplifier.
NOTE: At least one of the receiver's (or distribution amplifier's)
antenna input terminals must provide +12V DC to power the splitter
box.
3. Repeat steps 1 and 2 for the ANTENNA B inputs, using the second
Active Antenna Splitter.
4. Use coaxial antenna cables (not included) to connect the IN
connector on each Active Antenna Splitter to a UHF antenna, as
shown in Figure 1.
Figure 2
Switch
Figure 1
IN
Receiver or
Distribution Amplifier
Receiver or
Distribution Amplifier
OUT
OUT
IN OUT
OUT
ON
OFF
Active Antenna Splitter with access panel removed.
