Skip to content
banner_accessories digital format_p25 fg_109 fg_504 fg_805 fg_900 fg_950 frequency_uhf hover_important hover_programming hover_uv portable_radios price_starting_at usa

Motorola APX4000 H51SDF9PW6AN Double Knob UHF 2 Digital Portable Radio

Have a question? Ask our staff
Interested in leasing? Learn more

Free Returns

We guarantee your purchase for 3-months. Learn more about Haloid Guaranteed.

Accessories Available

Click the yellow “BUY & ADD OPTIONS” button to add options and accessories.

  • Manufacturer: MOTOROLA
  • Model: APX4000 
  • Part #: H51SDF9PW6AN 

    Description:
  • UHF R2 Radio
  • 450-520 MHz
  • Dual knob radio
  • Price includes radio only. Accessories can be added by selecting the yellow “BUY & ADD OPTIONS” button.
  • Limited Encryption Upgrades: We can add AES 256-bit, DES, DES-XL, or ADP encryption algorithms to this radio. If you need more than one algorithm, the radio must already support multi-key. If you need OTAR, then it must be an existing feature in the radio. If you would like us to add an algorithm, this would need to be custom quoted with the radio. Upgrades are limited as we only have so many available. Before ordering, we suggest you contact your local radio administrator to verify specific encryption requirements.
  • Flashcode: 9z80AgQ1K4906040000000000
    Q806: ASTRO IMBE Digital Operation
    G996: Over the Air Provisioning
    Q498: Hardware Multikey Encryption w/ OTAR
    QA01767: ASTRO 25 Trunking Radio Authentication
    QA09000: Tone Signalling
    QA00572: Primary Band: UHF Range 2
    QA00583: Enable Bluetooth Operation
    QA01648: Advanced System Key Enhanced Operation
    H38: SmartZone Systems Operation
    QA09008: Group Services
    Q507: 12.5 kHz FCC Mandate
    Q667: ADP Software Encryption
    QA00782: Enable GPS/GNSS Operation
    Q947: APCO Packet Data Interface
    QA02811: APX 3600/9600 Single System
    QA03399: Enhanced Data Operation
    Q173: SmartZone Omnilink MultiZone Operation
    QA00580: Enable TDMA Operation
    Q361: ASTRO 25 9600 Baud Trunking
    QA01620: Multi System OTAR

Legal Compliance Disclaimer: We certify this equipment has not been modified beyond its original factory and licensing specifications. The tags/flashcodes on the radios and the label(s) are original - and match. Please keep in mind, software and flash upgrades should only be performed by Motorola/Motorola authorized dealers. Failure to do so will void the radio's warranty and make it unreturnable to Haloid. You are welcome to have the radio programmed to your licensed frequencies but please leave software updates to your local Motorola dealer. 

Made for the USA

This genuine product was manufactured for the U.S. market. Learn more.

Estimated value $2,999.00
Estimated value $2,999.00 - Estimated value $2,999.00
Estimated value $2,999.00
Current price Starting at: $1,499.99
In Stock
$1,499.99 - $1,499.99
Current price $1,499.99
In Stock
FREE Returns

You can return this item in unused condition and we won’t charge a restocking fee. Learn more about our returns.

FREE shipping over $199
Tax charged in New York only

We collect sales tax for New York orders only. If you are exempt from NY tax, please contact us to request an exemption.

2 In Stock

Real inventory inside Haloid's warehouse.

Easy checkout. No account required

No account required. Checkout with
PayPal, Venmo, Apple, Google, or a major credit card.

Secure transaction

Your transaction is secure - guaranteed.

We guarantee that your transaction will be 100% safe. Our payment platform uses military-grade encryption and is approved by VISA, American Express, and others And we don’t share or sell your information to others. Learn more about our commitment to you.

Low price guarantee

If you purchase an item from Haloid, and find a competitor offering it online at a lower final price, then we will match the price, refund you the difference, AND beat the price by 10%!

Learn more about our Guarantee.

Purchase orders accepted

We accept POs from governments, schools, and large corporations.

You can receive a quote by adding items to your cart and selecting “Request Purchase Order Quote” on the cart page.

Please Contact Us for more information.

IMPORTANT TOPICS
Programming Available

Send us your existing radio or frequency information, and we'll program your radio for $25. Learn more.

UV Printing Available

Permanently mark your device with a UV-printed logo. Learn more.

Latest News & Updates

Chicago Fire Department Hires Haloid to Upgrade Citywide Communication System - Haloid engineered and delivered a proprietary call box named the CFD’s Black Box...

AWS Outage Exposes Vulnerabilities in Low-Cost Cellular Radios - Many PoC radios went offline during the AWS outage jeopardizing emergency communications...

Aftermarket Batteries Damaging Radios - Counterfeit and aftermarket batteries from eBay/Amazon are damaging radios at the highest pace in recent memory…

WARNING: Flammable Chemicals Sprayed on Used Radio Equipment - Some resellers and repair shops are using toxic chemicals to “spice up” appearances…

Give Your Current Radios Global Reach - Connect to other radios with Haloid Bridge...

Ask Our Staff

Have a Question? We’d love to answer.

Be the first to ask a question about this item.

Ask Our Staff
Thanks for making us the #1 customer-rated online seller of specialty radio equipment. Read our recent reviews.