Shure orporated PA421SWB User Manual

PA421SWB Antenna Combiner

2008 Shure Incorporated Printed in U.S.A.
27A12082 (Rev. 1)

PA42 1

PS MAntennaCombiner

470-870 Mhz

MAIN OUT

INPUTSIGNA L

ACTIVE COMBINER

1

2

3

4

50OHMS

POW ER

PA421SWB

ANTENNA COMBINER

2

! IMPORTANT SAFETY INSTRUCTIONS !

1. READ these instructions.

2. KEEP these instructions.

3. HEED all warnings.

4. FOLLOW all instructions.

5. DO NOT use this apparatus near water.

6. CLEAN ONLY with dry cloth.

7. DO NOT block any ventilation openings. Install in accordance with the manu­facturer's instructions.

8. DO NOT install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including amplifiers) that produce heat.

9. DO NOT defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wider blade or the third
prong are provided for your safety. If the provided plug does not fit into your out­let, consult an electrician for replacement of the obsolete outlet.

10. PROTECT the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.

11. ONLY USE attachments/accessories specified by the manufacturer.

12.

13. UNPLUG this apparatus during lightning storms or when unused for long periods of
time.

14. REFER all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is dam­aged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been
dropped.

15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled
with liquids, such as vases, on the apparatus.

16. The MAINS plug or an appliance coupler shall remain readily operable.

17. The airborne noise of the apparatus does not exceed 70dB (A).

18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet
with a protective earthing connection.

19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.

20. Do not attempt to modify this product. Doing so could result in personal injury
and/or product failure.

USE only with a cart, stand, tripod, bracket, or table
specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.

This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this unit.

This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.

WARNING:

Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. The

safety certifications do not apply when the operating voltage is changed from the factory setting.

OVERVIEW

The Shure PA421SWB Antenna Combiners actively combine antenna outputs from up to four PSM wireless transmitters to a single antenna, improving
RF performance and reducing rack clutter.

INSTALLATION

Before installing, set the front panel power switch to OFF. 1.
(See Figure 1)
Using the supplied power cable connect the unit to an AC power source.2.
To use the device set the front panel power switch to ON. The power light will illuminate.3.
Before disconnecting the unit from the AC power source, or when not in use, power the unit OFF. 4.

PA42 1

PSMAntenna

47

0-

870 Mhz

MAINOUT

INPUTSIGNAL

ACTIVE COMBINER

1

2

3

4

50OHMS

POWER

Combiner

ON/OFF

POW

ER

ON/OFF

4XJUDI0GG

Figure 1

Front Panel Switch Off

PA421SWB Benefits

Reduction of intermodulation artifacts for cleaner RF environment •
and more channels on air.

Simplified antenna placement.•

Power distribution.•

3

4-TO-1 COMBINING FOR PSM TRANSMITTERS

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.

®

PA 805WB

Figure 2

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).

LICENSING

Changes or modifications not expressly approved by Shure Incor­porated could void your authority to operate the equipment. Licens­ing of Shure wireless microphone equipment is the user’s respon­sibility, 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 concern­ing 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 INTER­FERENCE THAT MAY CAUSE UNDESIRED OPERATION OF THE DEVICE.

SPECIFICATIONS

RF Carrier Frequency Range

470-952 MHz

System Gain

+0/-5 dB

Input AC Line Voltage

100-240 Vac, 50/60 Hz

Maximum Input Line VA

100 VA

Maximum Current Drain

0.42-1.0 Amperes

(Amperes = 100 VA/Input AC Line Voltage)

Maximum RF Input Power

24 dBm (250 mW) per channel

Input Signal Indicator
Threshold

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

Impedance

50 W nominal

Operating Temperature Range

0× F (-18 × C) to +135× F (+57 × C)

Overall Dimensions

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)

Net Weight

4.53 Kg

(10 lbs unpackaged, without power and RF

cables)

Input/Output Connector Type

BNC-type 4 input, 1 output ACTIVE

Power Output

15 VDC, 660 mA each

NOTE: Electrical safety approval is based on a maximum
ambient temperature of 35°C.

FURNISHED ACCESSORIES

(4) 2 ft. Coaxial Cable (RG58C/U)

UA802

(4) 2 ft. Output Power Cable

95B8420

120 VAC Power Line Cord

95A8389

230 VAC Power Line Cord

95A8247

240 VAC Power Line Cord (U.K.)

95A8713

PA421SWB Frequency Range

470-1100 MHz

Wideband Unidirectional Antenna
(470-952 MHz)

PA805SWB

10 ft. Coaxial Cable (RG-8X/U)

PA725

25 ft. Coaxial Cable (RG-8X/U)

UA825

50 ft. Coaxial Cable (RG-8X/U)

UA850

Wide Band Omnidirectional Antenna

UA860SWB

Helical Antenna

HA-8089 (480-900 MHz)

HA-8241(944-952 MHz)

OPTIONAL ACCESSORIES

CERTIFICATIONS

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

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

N108

.

www.shure.com

United States:

Shure Incorporated
5800 West Touhy Avenue
Niles, IL 60714-4608 USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]

©2008 Shure Incorporated

Europe, Middle East, Africa:

Shure Europe GmbH
Wannenäckestr. 28,
74078 Heilbronn, Germany

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Asia, Pacific:

Shure Asia Limited
Unit 301, 3rd Floor
Citicorp Centre
18, Whitfield Road
Causeway Bay, Hong Kong

Phone: [phone]
Fax: [phone]
Email: [e-mail]

Canada, Latin America,
Caribbean:

Shure Incorporated
5800 West Touhy Avenue
Niles, IL 60714-4608 USA

Phone: [phone]
Fax: [phone]
Email: [e-mail]