The MD-655 is a new digital mobile radio from Hytera with a revolutionary design; the radio is completely controlled by its sleek smart microphone which even has a built in high resolution backlit LCD display. This means that the main radio body can be installed in a vehicle or under the desk in a basestation setup, this makes it an incredible versaltile radio.
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Key Features
Lightweight, Sleek and Stylish
Only 165x46x140mm in size and weighs a mere 1.05kg (including smart microphone).
Remote Control
All operations are done via the microphone and are easy to use and control.
Selectable RF Power Output
Continuously adjustable from 1W to 25W.
Superior Voice Quality
Uses narrowband codec and digital error-correction technologies for superior voice clarity in noisy environments or at the edge of the coverage area. Also includes AGC technology for optimising voice input and output.
Advanced Signaling
Supports multiple advanced analogue signalling modes, including HDC1200, 2-Tone and 5-Tone for better integration into existing analogue radio fleets.
Versatile Services
In addition to conventional communication services, MD65X features rich data services and selectable functions such as: Text Message, Telemetry, Emergency, OATP and GPS.
Specifications
Frequency range
UHF: 400 - 470 MHz
Supported operation modes
DMR Tier II (DMR conventional), Simulcast
XPT
Analog
DMR Tier II in reference to ETSI TS 102 361-1/2/3
Channel capacity
1024
Zone Capacity
64 (with max. 16 channels each)
Channel spacing (analog)
12.5 / 20 / 25 kHz
Channel spacing (digital)
12.5 kHz
Operating voltage
13.6 ±15 % VDC
Max. power consumption (in stand by)
≤ 0.6 A
Max. power consumption (during reception)
≤ 2.0 A
Max. power consumption (during transmission)
1 W: < 3 A
25 W: < 8 A
Frequency stability
±0.5 ppm
Antenna impedance
50 Ω
Dimensions (W × H × L)
165 x 46 x 140 mm
Weight
1050 g
LCD display
vie handheld microphone
Transmitter
Transmitting power
1 – 25 W (adjustable)
Modulation
11K0F3E at 12.5 kHz
14K0F3E at 20 kHz
16K0F3E at 25 kHz
4FSK digital modulation
12.5 kHz (data only): 7K60FXD
12.5 kHz (data and voice): 7K60FXW
Interfering signals and harmonics
-36 dBm < 1 GHz
-30 dBm > 1 GHz
Modulation limiting
±2.5 kHz at 12.5 kHz
±4.0 kHz at 20 kHz
±5.0 kHz at 25 kHz
Noise suppression
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz
Adjacent channel selectivity
60 dB at 12.5 kHz
70 dB at 20/25 kHz
Audio sensitivity
+1 to -3 dB
Nominal audio distortion
≤ 3%
Digital vocoder type
AMBE++
Receiver
Sensitivity (analog)
0.3 μV (12 dB SINAD)
0.22 μV (Typical) (12 dB SINAD)
0.4 μV (20 dB SINAD)
Sensitivity (digital)
0.3 μV / BER 5%
Adjacent channel selectivity
TIA-603
ETSI
65 dB at 12.5 kHz / 75 dB at 20 and 25 kHz
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz
Intermodulation
TIA-603
ETSI
75 dB at 12.5/20/25 kHz
70 dB at 12.5/20/25 kHz
Spurious response rejection
TIA-603
ETSI
75 dB at 12.5/20/25 kHz
75 dB at 12.5/20/25 kHz
Hum and noise
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz
Nominal audio power output
Internally, 3 W at 20 Ω
Externally, 7.5 W at 8 Ω
Nominal audio distortion
≤ 3 %
Audio sensitivity
+1 to -3 dB
Conducted spurious emission
-57 dBm
Ambient data
Operating temperature range
-30 °C to +60 °C
Storage temperature range
-40 °C to +85 °C
ESD
IEC 61000-4-2 (Level 4),
± 8 kV (contact)
± 15 kV (air)
Protection against dust and moisture
IP54
Shock and vibration resistance
MIL-STD-810 C/D/E/F/G
Relative humidity
MIL-STD-810 C/D/E/F/G
GPS (MD655G only)
Time to first fix (TTFF) cold start
< 1 minute
Time to first fix (TTFF) warm start
< 10 seconds
Horizontal accuracy
< 10 meters
Package Contents
1 x Hytera MD-655 (GPS) DMR Radio UHF (400-470MHz)