Shure PA421SWB User Manual

Using the supplied BNC-BNC cables, connect the Antenna Output 

1. 

of each transmitter to the Antenna Inputs of the PA421SWB  

(See Figure 2).

Attach an antenna to the MAIN Out of PA421SWB. For wideband 

2. 

applications, use PA805SWB directional antenna (Figure 1).

Connect the PA421SWB to a power outlet using one of the supplied 

3. 

power cables. The PA421SWB contains a universal power supply to 

operate anywhere in the world.

If you have a Shure PSM system that has the same power input 

4. 

connectors as the PA421SWB power ouputs, such as the PSM400, 

connect the PSM system to the PA421SWB via the supplied power 

cables (see figure 2). This replaces the need for an external power 

supply.

NOTE: The PA421SWB supplied power is 15 V and up to 660 mA.

®

PA80 5WB

NOTE: When the PA421SWB is powered on, the input signal 

indicators (1-4) on the front panel will illuminate if an active 

transmitter is connected to the corresponding input (1-4) on the 

back panel (Figure 2).

Changes  or  modifications  not  expressly  approved  by  Shure  Incor-

porated  could  void  your  authority  to  operate  the  equipment.  Licens-

ing  of  Shure  wireless  microphone  equipment  is  the  user’s  respon-

sibility,  and  licensability  depends  on  the  user’s  classification  and 

application,  and  on  the  selected  frequency.  Shure  strongly  urges  the 

user  to  contact  the  appropriate  telecommunications  authority  concern-

ing  proper  licensing,  and  before  choosing  and  ordering  frequencies.
THIS RADIO EQUIPMENT IS INTENDED FOR USE IN PROFESSIONAL 
ENTERTAINMENT AND SIMILAR APPLICATIONS.
NOTE:    THIS  EQUIPMENT  MAY  BE  CAPABLE  OF  OPERATING  ON 

SOME FREQUENCIES NOT AUTHORIZED IN YOUR REGION. PLEASE 

CONTACT YOUR NATIONAL AUTHORITY TO OBTAIN INFORMATION 

ON  AUTHORIZED  FREQUENCIES  FOR  WIRELESS  MICROPHONE 

PRODUCTS IN YOUR REGION
Licensing: Note that a ministerial license to operate this equipment may 

be required in certain areas. Consult your national authority for possible 

requirements.

OPERATION OF THIS DEVICE IS SUBJECT TO THE FOLLOWING TWO 

CONDITIONS:
(1) THIS DEVICE MAY NOT CAUSE INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE, INCLUDING INTER-

FERENCE THAT MAY CAUSE UNDESIRED OPERATION OF THE DEVICE.

470-952 MHz

+0/-5 dB

100-240 Vac, 50/60 Hz

100 VA

0.42-1.0 Amperes

(Amperes = 100 VA/Input AC Line Voltage)

24 dBm (250 mW) per channel

+4 dBm (2.5 mW), +2 dBm (1.6 mW) typical

50 W nominal

0× F (-18 × C) to +135× F (+57 × C)

43.4 mm high x 398.8 mm wide x331.5 mm 

deep (1 11/16 in. H x 15 11/16 in. W x 13 

1/2 in. D)

4.53 Kg

(10 lbs unpackaged, without power and RF 

cables)

BNC-type 4 input, 1 output ACTIVE

15 VDC, 660 mA each

NOTE: Electrical safety approval is based on a maximum 

ambient temperature of 35°C.

UA802

95B8420

95A8389

95A8247

95A8713

470-1100 MHz

PA805SWB

PA725

UA825

UA850

UA860SWB

HA-8089 (480-900 MHz)

HA-8241(944-952 MHz)

PA421SWB: Certified to FCC Part 74 (FCC ID No. DD4PA421SWB). 

Certified in Canada by IC to RSS-123 AND RSS-102 (Certification No. 

IC 616A-PA421SWB). UL LISTED to UL60065, 7th Edition and cUL 

LISTED to CAN/CSA E60065-00. Meets the Essential Requirements 

of the European R&TTE Directive 99/5/EC, eligible to bear CE mark. 

Meets EMC requirements of EN 301 489 Parts 1 and 9 and is GS-

Certified to EN EN60065, 7th Edition. Conforms to Australian EMC 

requirements, eleigible to bear C-Tick mark (N108) 

N108

.