D550 Noise Canceling Dmr Portable Radio
D550 is a DMR portable radio designed for industrial and commercial users. With standby time as long as 78 hours, D550 can easily handle a long work day.
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Product Description
D550 Noise Canceling Dmr Portable Radio for Construction SiteD550 Noise Canceling Dmr Portable Radio for Construction Site
Why Choose D550 DMR Portable Radio?
D550 is a DMR portable radio designed for industrial and commercial users. With standby time as long as 78 hours, D550 can easily handle a long work day.
This versatile radio also integrates emergency alert, VOX, and digital /analog dual modes to deliver more safety andefficiency.
Noise Canceling
The D550 features advanced noise-canceling technology that eliminates background noise, ensuring clear communication even in noisy environments like factories or construction sites. This improves call clarity and reduces distractions, making every conversation more effective.

Voice Announcement
If the users are using the model D550 which has no screen, it can gives a voice announcement. whenever the users perform an operation such as channel switch. This keeps theirs eyes on the task at hand.

Clear Audio
Equipped with advanced audio technologies, its loud and clear output guarantees conversations remain intelligible, ensuring seamless communication among users. Whether in bustling urban settings, industrial sites, or outdoor
adventures, this radio delivers a robust and distinct sound that cuts through surrounding noise, ensuring vital messages are conveyed crisply and effciently.

Easy Operation
D550 is designed to cater to the habits of commercial users, with the aim of delivering the best user experience. The programmable side buttons, the rich feature package and theergonomic design, all strive to make operations easy andintuitive and to improve work efficiency.
Analog-to-Digital smooth Migration
D550 can operate in digital or analog mode, which is the ideal solution for you to migrate from analog to digital with minimal disruption and investment. Experience seamless digital communication while adhering to your analog budget.

Communicate Throughout the Workplace
D550 comes with the high-sensitivity RX module and high-effciency monopole antenna for stronger signal penetration. Thus, the users can communicate smoothly even with low battery or in weak signal areas. Additionally, the antenna has the unique thickened thread design forgreat fexibility, better radiation effciency, prolonged service life, and extended communication range.
Specification
                            D550 5W DMR Digital Radio: AES256 Encryption Industrial Walkie Talkie                                            
Frequency Range
136~174MHz
350~400MHz
400~470MHz
Channel Capacity
48 Channels
(3 Zones)
Channel Spacing
12.5kHz/25KHz
Operating Voltage
7.4V
Battery Capacity
1800mAh
Battery Life
(5/5/90)
Analog:10.8hours
Digital:14hours
Vocoder Type
AMBE+2
Frequency Stability
±1.0ppm
Antenna Impedance
50Ω
Dimensions
(H×W×D)
126*62*41mm
Weight
Around 269g
Receiver
Analog Sensitivity
0.2μV(FM @ 12dB SINAD)
Digital Sensitivity
0.22μV(typ.) (@ 5% BER)
Adjacent Channel
Selectivity
60dB @ 12.5kHz
65dB @ 25kHz
Intermodulation
60dB @ 12.5kHz
60dB @ 25kHz
Blocking
84dB @ 12.5kHz
84dB @ 25kHz
Co-Channel Interference
Suppression
-12~0 dB @12.5KHz
-8~0 dB @25KHz
Spurious Response
Rejection
65dB @ 25kHz
65dB @ 25kHz
Rated Audio Output
Power
1.0W / 16Ω
Conducted Spurious
Emission
<-57dBm(9kHz~1GHz)
<-47dBm(1GHz~12.75GHz)
Transmitter
RF Power
1W (Low) / ≤5W (High)
Power Margin Variation
+2/-3dB (under Extreme Conditions)
Frequency  Error
±1.0ppm
FSK Error
<5%
4FSK Transmission
Bit Error Rate (BER)
≤1×10-4
4FSK Modulation Frequency Deviation Error
≤10.0%
Occupied Bandwidth (DMR)
≤8.5KHz
TX Attack/Release Time
≤1.5ms
Adjacent Channel Power
≤-50dB @12.5KHz
≤-60dB @25KHz
Transient Adjacent
Channel Power
≤-50dB @ 12.5KHz
≤-60dB @ 25KHz
FM Modulation
16K0F3E @25KHz
11K0F3E @12.5KHz
4FSK Digital Modulation
12.5KHz(data only):7K60FXD
12.5KHz(data+voice):7K60FXE
Audio Distortion
≤3% @ 40% Deviation
Audio Response
+1 ~ -3dB
FM Hum and Noise
40dB @ 12.5KHz
45dB @ 25KHz
Spurious Emission
≤-36dBm(9KHz~1GHz)
≤-30dBm(1GHz~12.75GHz)

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