Filter
Top Products
7
Benefits
• Reduction of intermodulation artifacts for cleaner RF
environment and more channels on air
• Simplified antenna placement
Power
• Turn power off before installing.
• Use the supplied power cable to connect the unit to an AC power source.
• The power LED illuminates when powered on.
• Power the unit off when not in use or before disconnecting the unit from the AC power source
PA421A
PSM Antenna Combiner
470-952 MHz
MAIN OUT - 50 OHMS
INPUT SIGNAL
EXPANSION PORT
POWER
A IN B IN
A+B OUT
DC OUTPUT
N108
93WL
EQUIPMENT
COMMERCIAL AUDIO
Description
Shure antenna combiners actively combine antenna outputs from
PSM® wireless transmitters to a single antenna, improving RF perfor-
mance and reducing rack clutter. Four DC power outlets and supplied
power cables allow you to connect additional PSM systems, without
adding external power supplies.
Using the Antenna Combiner to Power
Transmitters
The combiner supplies 15 V at up to 660 mA to each DC
output. These may be used to power compatible Shure PSM
transmitters, such as the P9T.
Green = >85 mA Red = >660 mA
®
PA805WB
AC Power 50Ω BNC
PA421A
PSM Antenna Combiner
470-952 MHz
MAIN OUT - 50 OHMS
INPUT SIGNAL
EXPANSION PORT
POWER
A IN B IN
A+B OUT
DC OUTPUT
RFDC
Pat. 6597301;
Pat. App. Pending
Pat. 6597301;
Pat. App. Pending
Pat. 6597301;
Pat. App. Pending
Pat. 6597301;
Pat. App. Pending
N108
93WL
EQUIPMENT
COMMERCIAL AUDIO
Antenna Configuration
• Attach an antenna to the MAIN OUT of the combiner. For
wideband applications, use the PA805SWB directional
antenna.
• Use the supplied BNC-BNC cables to connect the
ANTENNA INPUTS of the antenna combiner to the antenna
outputs of each transmitter.
Four-to-One Combining for PSM Transmitters
Device connected
and powered
Over current condition
PA421A
PSM Antenna Combiner
470-952 MHz
MAIN OUT - 50 OHMS
INPUT SIGNAL
EXPANSION PORT
POWER
A IN B IN
A+B OUT
DC OUTPUT
N108
93WL
EQUIPMENT
COMMERCIAL AUDIO
PA421A
PSM Antenna Combiner
470-952 MHz
MAIN OUT - 50 OHMS
INPUT SIGNAL
EXPANSION PORT
POWER
A IN B IN
A+B OUT
DC OUTPUT
N108
93WL
EQUIPMENT
COMMERCIAL AUDIO
LEDs on the front panel indicate current draw for each
DC output:
PA805SWB