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Motorola DTR550 Digital Two Way Radio

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Quick Overview

The Motorola DTR550 two way radio features the next generation of two way radio technology. The DTR550 uses 900 MHz digital frequency hopping technology to ensure crisp, clear, and private communications. This technology uses a different set of frequencies than standard two way radios, and can be used without purchasing a license!
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Availability: Discontinued

This product has been discontinued and is no longer available. It was replaced by the Motorola DTR600 Digital Two Way Radio .


The Motorola DTR550 two way radio features the next generation of two way radio technology. The DTR550 uses 900 MHz digital frequency hopping technology to ensure crisp, clear, and private communications. This technology uses a different set of frequencies than standard two way radios, and can be used without purchasing a license!

Range is not a problem with the Motorola DTR series. Typically, the DTR-550 provides up to 40% more coverage than a standard UHF two way radio. As with all radios, coverage will vary based on terrain and conditions. The DTR550 also allows you to define up to 20 groups. Call an entire group at once, like with standard radios, or you can call an individual radio!

The Motorola DTR550's full graphic backlit display even shows you exactly who is calling with its caller ID feature. Enhanced call forwarding allows you to automatically notify a caller that you are unavailable and forward their call to another radio. As an added convenience, the DTR550 is capable of sending and receiving Short Message Service (SMS) text messages, with 5 preset text messages and support for keyed-in custom messages.

The DTR550 is just as rugged and durable as the Motorola two way radios you are used to. Built to military 810 C,D,E, and F specifications, you don't have to worry about it holding up in rough conditions.

Includes one enhanced Motorola DTR Series DTR550 two way radio, whip antenna, swivel belt holster, drop-in charger, and 14.5 hour lithium rechargeable battery.

Audio Sample

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Motorola DTR550 vs. Motorola DTR650

The DTR650 is an ideal choice for managers, since it provides the ability to monitor, manage and program the DTR550 radios in a group. Additional features include:

  • High capacity battery pack for up to 19 hours of operation (up to 14.5 hours on the DTR550)
  • One hour charger (DTR550 has a three hour charger)
  • Up to 50 public groups (up to 20 public groups on the DTR550)
  • Up to 20 private groups (10 private groups on the DTR550)
  • Up to 25 preprogrammed messages= 25 available and 10 preprogrammed on the DTR650 (15 available and 5 preprogrammed on the DTR550)
  • Remote monitor and disable origination
  • Over-the-air time and date update origination


Motorola DTR550 Features

  • Define up to 20 Groups (Channels)
  • 350,000 Sq. Ft. / 30 Floor
  • 900 Mhz Frequencies
  • Frequency-Hopping Spread Spectrum (FHSS)
  • User Selectable Frequencies
  • Uses Rechargeable Battery Pack
  • Rechargeable 14.5 Hour Lithium Battery Pack Included
  • Includes Drop-In Battery Charger
  • Vibrate Alert
  • Uses Eavesdrop Resistant FHSS Technology
  • Direct One-To-One Calling
  • Supports Cloning
  • SMS Text Messaging
  • Caller ID
  • Contacts List
  • Up to 5 Group Scan
  • Talk Confirmation Tone
  • Backlit Display
  • Battery Meter
  • Low Battery Alert
  • PC Configurable (cable sold separately)
  • Audible Button Beeps
  • Clock / Alarm
  • Drop-In Charge Capable
  • Water Resistant
  • Audio Accessory Connector
  • Meets Military 810 C,D,E, and F Specifications
  • One Year Manufacturer Warranty

Included with the Motorola DTR550

  • One DTR 550 Digital On-SIte Two Way Radio
  • Lithium Ion Battery
  • Drop-In Charging Tray
  • AC Charger
  • Swivel Belt Holster
  • 6 7/8" Whip Antenna
  • User Guide CD-ROM
  • Quick Reference Guide

Motorola DTR550 Specifications

  • Frequency: 900 MHz ISM FHSS
  • Power Supply: 3.8V ± 0.4V
  • Dimensions: 5.2” H x 2.3” W x 1.4” D
  • Weight (with 1200 mAH Li-Ion Battery): 200.2g (7.1oz.)
  • Antenna connector type: SMA Male (Motorola/Vertex)

Additional Information

Manufacturer Part Number AAH73WCF9NA3AN
Warranty 1 Year
FCC ID AZ489FT5852
Channels 20
Radio Type Handheld
Services Business
Durability Meets Military Specs
Digital Standard 900 MHz FHSS
Frequencies 900 MHz FHSS
  1. These radios are the real deal! Professional all the way. review by Auto Dealer on 4/3/2018

    The radios are used in an auto sales company and have proved themselves many times over.

  2. Clear audio. average signal strength @1.5 mi hilly terrain. review by Northbranch58 on 1/28/2016

    Management of large estate with mixed terrain.

  3. Clear sounding digital radios review by Chickenhawk on 9/26/2015

    The best licence-free radio on the market and the best clarity I have ever heard. It is expensive, but built to military standards and has the longest range of any UHF radio. It even beats VHF radios outdoors; places where VHF is supposedly better. Programming is complicated but the software is free. One needs a Motorola programming cable, plus a serial-to-USB adapter to program them from the computer. One can program many of the functions (except changing the names from generic ID numbers to proper names for the various individual radios and groups) right from the keyboard, but it can be confusing. Thankfully, there are many enthusiasts of these radios on internet forums who can help. One can also just turn them on and use the factory defaults. In five years of owning DTR550, DTR650 and DTR410 radios, I have never heard another transmission even on the factory default channel 1, Group ID 1. The latest version of the DTR550 as sold here now comes with the latest firmware, a one-hour charger and the longer 1/2 wave antenna. Keep in mind the only radio that can communicate with a Motorola frequency-hopping spread-spectrum radio like the DTR550 is another DTR radio (and now, the newly-introduced DLR series too.) They do not transmit on business or recreational bands, but if you are looking for good clarity, no interference, no need for licening and the ability to call up individual radios while still allowing other users on the same band of frequencies, these are definitely worth a look.

  4. Great radio review by William Wallace on 11/24/2014

    Radio works extremely well. Very clear reception and transmission. Would highly recommend.

  5. Motorola DTR550 review by James on 7/8/2014

    First off these radios are the best two way radios that I have ever had the chance to test. Me and a friend tested these radios in a residential area with uneven terrain and were able to achieve at minimum 1.83 miles with our max distance being 2.33 miles. Compared to our analog radios which are Vertex Standard VX-231 UHF 5 Watt handhelds we were able to achieve an 83% increase in distance using only 20% of the power of the analog radios. This is quite impressive and on top of that the voice quality is very crisp and when you go out of range there's no cutting out and annoying static. In fact the radios have a way of telling the user that they are either in range of each other or not in range of each other which takes the guess work out of trying to measure coverage. Oh and also when making the above coverage measurements in town my friend was standing outside at his place while I was talking to him from INSIDE a car driving around. Programming the radios was a breeze using the FREE programming software (take note Vertex Standard) with an easy to understand interface. When you purchase the programming cable which is what I did when I bought the radios, make sure to have a DB-9 to USB adapter handy to convert the DB-9 serial connection to USB for your computer. Overall you are getting an exceptional value for the price which yes is a little high, but these radios will make up for the price tag in performance and build quality.

  6. Excellent clear two way radio review by DC Buyer on 1/1/2014

    My company uses 5 of these radios in a 388 thousand sq ft distribution center. It is a quarter mile from one end of the bldg to the other, filled with cardboard boxes of electronic equipment. The reception is so good that it sounds like you are standing beside the other person when you are a quarter mile apart. We are very satisfied with this radio.

  7. Good radio review by DSM on 5/11/2013

    Decent range, about 5-6 blocks easily in the neighborhood, and not line of sight either. Open areas have even better range. Longer antennae can squeak out even more distance. Freq. hopping all but guarantees no interference. Clear sound and headsets and other gear is easy to get. Programmed generically out of the box but if you want to do anything customized you need the programming cable and since it's a 9-pin serial port (that most computers don't have anymore) you need a USB adapter too. Small size and lightweight, quite sturdy as well. Four stars for lacking full programming without a computer and I'd prefer an AA adapter but that's personal preference.

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