American Communication Systems
Home  >>  BK Technologies (Relm) SDMX921-D3
My Cart Cart    
My Account My Account


BK Technologies (Relm) SDMX921-D3

Rack Mount P25 Digital VHF Base Station / Repeater, 148-174 MHz, 50 W, 25kHz / 12.5 kHz, 255 Channels
Low power consumption, continuous duty, flex.mode, built-in test equipment, Plug and Play, Low current option included. With LZAST92 P25 option module
Microphones and options sold separately
Customer Rating:  
/
Vote!
Item SKU Number:  181045
Manufacturer Part Number:  SDMX921D3, SDMX921 D3, SDMX921-D3
FCA point / Shipped from:  USA 
 Download Free Materials:
  
Adobe Acrobat Reader RelmBK_SMX920_series_radios.pdf (252.81 KB)
 Item Details:


RELM (Bendix King) SMX921 Analog Repeater/Base Station

Designed from the ground up for the absolute lowest possible power consumption, the RELM/BK SMX921 features the lowest current draw of any professional high-performance repeater/base station among comparable products in today's marketplace.

Advanced circuit design and optimization enable extraordinary RF performance few competing products can provide whatever their power consumption.

* Lowest power consumption enables unique solar power option (58 mA)
* 148-174 MHz VHF, 400-520 MHz UHF, multiple ranges
* 255 channels
* System product - continuous duty
* 13.8 volts DC or 110 volts AC - low power consumption, optional battery back-up (lasts forever)
* 1-50 watts programmable RF power
* Flex-Mode per-channel narrowband/wideband channel spacing
* Built-in test equipment (BITE)
* Internal duplexer option
* More software control of main board functions, elimination of manual pots and jumpers
* Simple set-up, plug and play


 Manufacturer's Catalogs and Guides:

These files contain information about the available products from the manufacturer. If you need something that is not on our website, please contact us. We will help you purchase the desired product at a low price.

BK Technologies Catalog 2023
BKR & KNG Accessory Catalog

Published Date: August 2025
BK Technologies BKR Accessory Catalog 2022.pdf
BKR Accessory Catalog

Published Date: March 2022
BK Technologies All Products Catalog
BK Technologies All Products Catalog

Published Date: April 2025


Relm BK Radio BK Technologies is deeply rooted in the public safety radios and communications Industry and manufactures high specification communications equipment of unsurpassed reliability and value for use by public safety professionals and government agencies, as well as radios for use in a wide range of commercial and industrial applications. Advances include a broad new line of leading digital two-way radios compliant with APCO Project 25 specifications.

BK Technologies two-way radios always incorporates the latest technology. The quality and function of the BK Technologies two-way radio can meet your demands for reliable communication. BK Technologies' products are manufactured and distributed worldwide under Bendix King and Relm brand names.





 Last Viewed Items:

SDMX921-D3 Rack Mount P25 Digital VHF Base Station / Repeater, 148-174 MHz, 50 W, 25kHz / 12.5 kHz, 255 Channels
Bee-7610B-C Bee Electronics 7610B-C Leather High Cap carry case, with Clip. For Bendix-King radio(s)
KNG2-P800 P25 Digital Portable UHF Radio, 763-870 MHz, 5000 Channels, APCO P25, 3 Watt Digital/Analog, Palm-Size, Light Weight, Enhanced Speaker, Colour Display, IP67 Protection
F2000 82 USA Analog UHF Portable Radio, 400-470 MHz, 4W, 16 Channels, Built-in Inversion Voice Scrambler, Channel Announcement, IP67 Waterproof
2150B-150 Leather Carry Case with Swivel
V1-10396 3 Wire Mini Lapel Microphone Professional Surveillance Kit with Heavy Duty Cable, Black
V4-BA2CC3B Breeze, lightweight, behind-the-head, single spkr w/std. PTT & 2.5mm pigtail for remote PTT
PA-BDN6603 Audio Accessory Adapter
SPM-2500A Pryme SPM-2500 Premium Throat Microphone System, Acoustic Tube Version, with Acoustic Earphone. For COBRA, ICOM, MAXON, MIDLAND and YAESU radios.
F3261DT 34 RR ICOM IC-F3261D Waterproof Analog, LTR®, Digital VHF Portable Radio, 136-174 MHz, 5W, 512 Channels, 14-pin Accessory Connector, Inversion Scrambler Built-in, with Keypad



Share this Page