Motorola RDU4160D: Discontinued — Replaced by the Motorola CP100d
Discontinued Model • UHF • 16 Channels • 4 Watts • See the Recommended Replacement Below
⚠ This Radio Has Been Discontinued
The Motorola RDU4160D is no longer manufactured or available for purchase — Motorola has retired the entire RDX series. For new orders we recommend its direct replacement, the Motorola CP100d — a current dual-mode analog and digital UHF business radio that covers the same on-site use with a clear digital upgrade path. Already running RDU4160D radios and need help servicing or migrating a fleet? Call our team at 1-800-984-1534 or contact our radio experts.
The Motorola RDU4160D, part of the RDX Series, was a 4-watt UHF business two-way radio engineered for reliable, high-performance on-site communication. Operating across 89 business-exclusive UHF frequencies, it paired military-spec durability with up to 16 channels and a clear tricolor LED interface — a true workhorse for warehouses, retail floors, and light-industrial crews. Although the Motorola RDU4160D is now discontinued, this page remains live to help current owners service their fleets and to point new buyers toward the right current-generation replacement: the Motorola CP100d.
What the RDU4160D Offered
4-Watt UHF Power
Strong, clear coverage across 89 business-exclusive UHF frequencies (438–470 MHz), rated up to 350,000 sq ft or 30 floors.
Up to 16 Channels
Channel aliasing with up to 8 characters made it easy to identify and select the right channel across a fleet.
Rugged Military-Grade Build
Met MIL-STD 810 C, D, E & F for dust, wind, shock and vibration, with an IP55 dust- and water-resistance rating.
Enhanced Audio
Speaker magnetic-field reduction delivered cleaner, more intelligible audio in noisy work environments.
2013 FCC Narrowband Ready
Shipped at the 12.5 kHz default to keep your operation compliant straight out of the box.
Practical Controls
Battery gauge, signal-strength indicator, keypad lock, 5 programmable buttons and advanced VOX (with optional accessories).
Simple Fleet Management
Customer Programming Software and simplified cloning made it fast to configure a fleet of RDU4160D radios.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | Motorola RDU4160D (Discontinued) |
| Power Output | 4 Watts |
| Band / Frequency Range | UHF: 438–470 MHz |
| Channels | 16 |
| Operation | Analog |
| Range | 350,000 sq ft / 30 floors |
| Battery Life | Up to 15 Hours |
| Durability | MIL-STD 810 C, D, E, F |
| IP Rating | IP55 |
| Encryption | No |
| License Required | Yes (FCC License) |
| Warranty | 2 Year Manufacturer Warranty |
| Status | Discontinued — replaced by the Motorola CP100d |
What Replaces the Motorola RDU4160D?
Now that the RDX series is retired, the Motorola CP100d is the direct replacement and our top recommendation for most teams. It delivers the same simple, rugged UHF push-to-talk the RDU4160D was known for, and adds dual-mode analog and digital operation — so you can run alongside legacy radios today and migrate to clearer digital audio at your own pace. Pair it with CP100d accessories to complete a fleet. For larger or growing operations, the Motorola BPR50dX adds more channels and capacity. Prefer a license-free option? The Motorola CURVE DLR110 skips the FCC license entirely. Browse the full lineup in our business two-way radios collection, or compare current license-free two-way radios.
See the Recommended Replacement →
Frequently Asked Questions About the Motorola RDU4160D
• Is the Motorola RDU4160D discontinued?
Yes. Motorola has discontinued the Motorola RDU4160D along with the rest of the RDX series. The radio is no longer manufactured, but existing units can still be serviced and supported. The recommended current replacement is the Motorola CP100d.
• What radio replaced the Motorola RDU4160D?
The Motorola CP100d is the direct replacement — a rugged 4-watt UHF business radio with both analog and digital operation for an easy upgrade path. Larger fleets can also step up to the Motorola BPR50dX.
• What were the key specs of the Motorola RDU4160D?
The Motorola RDU4160D was a 4-watt analog UHF radio (438–470 MHz) with 16 channels, a rated range of 350,000 sq ft / 30 floors, up to 15 hours of battery life, MIL-STD 810 C/D/E/F durability and an IP55 rating. It required an FCC license to operate.
• Can I still get service or migrate an existing RDU4160D fleet?
In many cases, yes. Call our team at 1-800-984-1534 or contact our radio experts and we'll help you service current units or plan a migration to the Motorola CP100d.