Shure PA421B Antenna Combiner (470 to 865 MHz)

Shure PA421B Antenna Combiner (470 to 865 MHz)

Shure PA421B Antenna Combiner (470 to 865 MHz)

B&H # SHPA421B MFR # PA421B
Shure PA421B Antenna Combiner (470 to 865 MHz)

Show MoreLess


Now Viewing:

Special Order
Expected availability: 7-14 business days

Product Highlights

  • Optimizes RF Management
  • Combines Up to Four PSM Transmitters
  • LED Indicators for Signal Presence
  • Daisy-Chain Up to 2 Combiners
  • Provides DC Power to IEM Transmitters
  • Reduces Rack Clutter
Show moreShow less

Frequency Band: 470 to 865 MHz

470 to 865 MHz 865 to 960 MHz

Special Order

B&H $500 Gift Card Dash

Share for a chance to win a $500 B&H Gift Card!

Share on Twitter

Share a favorite product for chances to win one of eight $500 B&H Gift Cards!
1 new winner announced every Monday starting Nov 5th!
Limit 1 entry per day: Come back every day to increase your chance of winning.

Be sure to mention #BHWishList when you share!

Congrats to our winners so far:

Next winner: Nov 19th

James Z. (Wk 1)

Ralph H. (Wk 2)

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about October 28, 2018 until on or about December 23, 2018 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website (the "Website") on Facebook or Twitter via the dedicated links contained on the website using the hashtag #BHWishlist; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $500.00 Gift Card Dash Sweepstakes, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the email account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $500.00 Gift Card Dash Sweepstakes Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $500.00 Gift Card Dash Sweepstakes, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only


Already have a B&H account? Just log in tomorrow to enter again!

$0 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List

Shure PA421B overview

  • 1Description

The PA421B Antenna Combiner from Shure combines up to four PSM transmitters to a single antenna set. It can be used when multiple wireless systems are required for monitoring in sound reinforcement applications.

The PA421B reduces rack clutter, optimizes RF management, and provides DC power to compatible IEM transmitters. LED indicators for signal presence and signal overload provide four input LED signals (green when active, off inactive). Also, a very quiet, temperature-sensitive fan keeps the unit cool.

Combines up to four PSM transmitters to a single antenna set

  • Improved intermodulation artifacts for cleaner RF environment
  • Reduces rack clutter
Wideband operation 470 to 865 MHz
Daisy-chain up to 2 combiners with the expansion port
Provides DC power to compatible IEM transmitters
LED indications of signal presence, signal overload and current draw
Fan design significantly improves cooling and reduces ambient noise
Provides +15V bias on RF inputs to power antennas
UPC: 042406472098
In the Box
Shure PA421B Antenna Combiner (470 to 865 MHz)
  • IEC Power Cord
  • 4 x DC Power Output Cables (24")
  • 4 x BNC Coaxial Cables (24")
  • BNC Coaxial Cable (11")
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Shure PA421B specs

    Carrier Frequency Range Wideband (470 to 865 MHz)
    Connector Type BNC
    Impedance 50 Ohms
    Operating Temperature Range 0 to 145°F (-18 to 63°C)
    Power Requirements 100 to 240 VAC, 50 to 60 Hz
    Current Drain 1.09 A (referenced at 100 VAC) (109 VA)
    Power Consumption 98 W maximum
    RF Input Specs
    Connector Type BNC
    Configuration Active
    Impedance 50 Ohms
    RF Gain 0 dB (2 dB)
    LED Indicator 2.5 dBm minimum detection threshold
    >24 dBm overload threshold
    Main Outputs
    Connector Type BNC
    Impedance 50 Ohms
    Expansion Features
    Connector Type BNC
    Impedance 50 Ohms
    Insertion Loss <4 dB
    DC Power Output
    Output Voltage 15 VDC
    Output Current 660 mA maximum (per output)
    Output Power 9.9 W (per output)
    LED Indicator 85 mA (minimum detection threshold)
    >660 dBm (overload threshold)
    Dimensions Not specified by manufacturer
    Weight Not specified by manufacturer
    Packaging Info
    Package Weight 16.75 lb
    Box Dimensions (LxWxH) 27.8 x 17.8 x 3.6"

    Shure PA421B reviews

    Be the first to review this item

    Shure PA421B Q&A

    Shure PA421B accessories

    See any errors on this page? Let us know.