Digital Mobile Radio (DMR) is an open digital protocol (or waveform) for digital voice or data on VHF and UHF bands, created by the European Telecommunication Standards Institute (ETSI). Among voice and data, DMR offers a lot of more features and opportunities, whether in conventional or in trunking systems. Because of its open standar-dization it is world-wide recognized and well deployed.
All over the world DMR radio systems are providing a mission critical communication, among others, users in
- Military, Para Military and Militias
- Police and Security
- Detention Centers, Correctional Facilities and Re-Education Camps
- Closed Psychiatric Hospitals (Forensic Psychiatry)
- Fire Departments
- Rescue, Disaster Managment and Civil Defense
- Event Agencies
- Harbor Facilities
- Development Aid and Humanitary Organizations
- Forestry and Park Rangers
- Hotel and Tourism
- Aerodromes and Heliports
- Transport and Logistic
DMR radio systems are using a channel spacing of 12,5 kHz and therefore are compatible to the most radio bandplans and radio spectrum, which is used for analog radio systems in most countries of the globe.
Furthermore, all radios may be operated within in existing analog radio networks also!
With that, radio solutions basing on DMR standard are providing an easy and cost saving migration from analog into the digital world.
DMR standard is providing a communication free of interference and secured against eavesdropping by unauthorized third parties. The following features are supported, which are listed below:
- Single/Direct Call (Private conversation among 2 subscribers)
- Group Communication
- Netzwork-Wide Call (Allcall)
- Alert Call
- Distress Call (Distress Pushbutton, Mandown Unit, Lone Worker)
- Priority Interrupt (interruption of a call in progress by a prioritized call)
- TDMA (2 connections on ONE physical channel)
- IP based connection of several base transceiver stations (BTS) to cover larger regions
- SDS/SMS-Services incl. status reports
- Clear display of the transmitting subscriber and the talk group (TG)
- Address Book
- Roaming (automatic handshake with the next base transceiver station, providing the best signal)
- Transmitting of the own position (GPS-equipped units only)
- Theft Protection (Stun/Un-Stun of lost units by remote control)
- Radio Check (Request, whether a subscriber is checked into the radio network)
- Computer/Software-Based Solutions for Mission Control and Operation Centers
Radio units and network components according to the open ETSI standard DMR:
1. Digital Voice - Handheld Radio Terminals (HRT)
2. Digital Voice - Mobile- and Fixed Radio Terminals (MRT/FRT)
3. Digital Voice - (Mobile) Base Transceiver Stations/Repeater Stations (BTS/mBTS)
1. Digital Voice - Handheld Radio Terminals (HRT)
1.1 Hytera HRT PD-785/785G
The HRT PD-785/785G is primarily targeting to users in the industrial and security relevant sector. It is very durable, water- and dust proof and it will survive the one or the other puch. It is the most requested HRT, which provides the most feature for an affordable and reasonable purchasing price.
General Features:
Ergonomic Design
The HRTs PD-785 and PD-785G (Version with GPS) providing a high usability and reliability with all the user is in need of, when in a critical deployment. The world-wide patented industry- and antenna design assures the high usability and superb sensitivity of the GPS receiver.
Versatile Features
The PD-785/PD-785G providing complete data services and features e.g. text message, status reports, distress calls, mandown alerting (G version), loneworker, roaming, voice encryption, transmission of position data, many analog signalling protocols (5-tone, MDC-1200, PL, DPL)
Reliability
The PD-785/PD-785G meets all requirements of the open ETSI standard DMR, as well as of MIL810 - C / D / E / F / G and degree of protection IP67. The device series thus offers excellent features even under harsh operating conditions.
Ease of Use
Large pushbuttons ensure the handheld radio is easy and convenient to use. The large TFT color display enables good readability even when light conditions are poor. More than 20 programmable keys allow quick access to the various services and functions.
Powerful Battery
Compared to the analog technology and the FDMA process, with TDMA the battery service life can be improved by approximately 40%.
Excellent Voice Quality
With the combined application of the narrow band codec and digital technologies for error correction, the radios ensuring excellent voice quality even in loud environments and in peripheral areas of radio coverage.
Upgradeable Firmware
Upgradeable software makes the use of new features possible. By altering the firmware, other digital and analog operating modes can be enabled, without the need for purchasing a new radio device.
Specifications:
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz, 350-400 MHz, 450-520 MHz 800/900 MHz
|
|
Supported operation modes
|
DMR Tier III in reference to ETSI TS 102 361-1/2/3/4 |
|
Memory capacity
|
1024
|
|
Number of zones
|
64 (with up to 16 groups/channels each)
|
|
Channel spacing (analog)
|
12.5 / 20 / 25 kHz
|
|
Channel spacing (digital)
|
12.5 kHz
|
|
Operating voltage
|
7.4 V (nominal)
|
|
Standard battery
|
2000 mAh (lithium-ion battery)
|
|
Battery service life (analog)
(5-5-90 duty cycle, high transmitting power, standard battery) |
VHF: approx. 11 hours / 10 hours (GPS mode)
UHF: approx. 13.5 hours / 12 hours (GPS mode) |
|
Battery service life (digital)
(5-5-90 duty cycle, high transmitting power, standard battery) |
VHF: approx. 13.5 hours / 12 hours (GPS mode)
UHF: approx. 15.5 hours / 14 hours (GPS mode) |
|
Frequency stability
|
±1.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H×W×D)
(with standard battery, without antenna) |
125 x 55 x 37 mm
|
|
Weight (with antenna and standard battery)
|
355 g
|
|
LCD display
|
160 × 128 pixels, 65,536 colours, 4.57 cm, 4 lines
|
|
Transmitter
|
|
|
Transmitting power
|
VHF: 1 / 5 W
UHF: 1 / 4 W |
|
Modulation
|
11 K0F3E at 12.5 kHz
14 K0F3E at 20 kHz 16 K0F3E 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 dB to -3 dB
|
|
Nominal audio distortion
|
≤ 3%
|
|
Digital vocoder type
|
AMBE+2™
|
|
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 |
60 dB at 12,5 kHz / 70 dB at 20 and 25 kHz 60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz |
|
Intermodulation
TIA-603 ETSI |
70 dB at 12.5/20/25 kHz 65 dB at 12.5/20/25 kHz |
|
Spurious response rejection
TIA-603 ETSI |
70 dB at 12,5/20/25 kHz 70 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
|
0.5 W
|
|
Nominal audio distorsion
|
≤ 3 %
|
|
Audio sensitivity
|
+1 dB 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 discharge) ±15 kV (air discharge) |
|
Protection against dust and moisture
|
IP67
|
|
Shock and vibration resistance
|
MIL-STD-810 C/D/E/F/G
|
|
Relative humidity
|
MIL-STD-810 C/D/E/F/G
|
|
GPS (PD785G only)
|
|
|
Time to first fix (TTFF) cold start
|
< 1 minute
|
|
Time to first fix (TTFF) hot start
|
< 10 seconds
|
|
Horizontal accuracy
|
< 10 meters
|
1.2 Hytera HRT X1p
Our "I-Phone" among the end-user units for digital voice communication is targeting to those, who are in essential need of a covered bearing in conjunction with a full functionality and usability. It already includes the options "mandown" and "GPS" and provides the same durability as the HRT PD-785. The highlight is the flat construction of the corpus with dimensions, which only one can find at smartphones. Therefore the user may bear it concealed under a jacket or a suit.
General Features:
Dust- and Waterproof to IP67
The X1p is reliable even in harsh operating conditions. It is waterproof and dustproof in accordance with degree of protection IP67, which means it is capable of withstanding a water depth of one meter for at least half an hour. The X1p also meets the requirements of the American MIL - STD - 810 C / D / E / F / G standards and can therefore withstand even extreme mechanical loads
Versatile Features The X1p providing complete data services and features e.g. text message, status reports, distress calls, mandown alerting (G version), loneworker, roaming, voice encryption, transmission of position data, many analog signalling protocols (5-tone, MDC-1200, PL, DPL)
Integrated GPS as Standard
With the aid of the integrated GPS module the X1p can send position information to dispatcher systems, for example. Dispatchers can evaluate this information and use functions such as geofencing, radio localization and GPS tracking. The X1p can also determine and display the distance and direction to other radios with GPS support in the DMR system.
Supports Hytera BT Headsets
Wireless audio accessories from Hytera can be connected directly to the X1p. As such the radio can be carried conveniently without having to route cables through the clothing.
Different Digital and Analog Operating Modes
The X1p was developed in compliance with the ETSI Digital Mobile Radio (DMR) standard. It supports both conventional DMR operation (DMR Tier II), DMR trunking (DMR Tier III). The X1p can also be operated in analog mode. Along with conventional analog radio it also supports analog trunking as per MPT 1327.
Calls to the Telephone Network
Provided the X1p is registered in a DMR Tier II system via a repeater, selective calls can be made from the radio directly to the telephone network via this repeater. Telephone subscribers can also call specific individual radios or also groups.
Upgradeable Firmware
Upgradeable software makes new features possible. By altering the firmware-software, other digital and analog operating modes can be enabled without the need for purchasing a new radio device.
Multiple Languages
The X1p supports various menu languages. T9 support for text entry is available.
Large Color Display
The X1p has a 1.8" TFT LCD display (65,536 colors) that can be clearly seen even in bright sunlight outdoors.
Digital Voice Encryption
Encryption with encryption algorithm ARC4 (40 bit) in accordance with DMRA or with optional algorithms AES128 and AES256 (128 and 256 bit) ensures secure communication.
Additional Operating Time
In comparison to an analog radio, the operating time can be significantly increased by using DMR TDMA. This means that an operating time of up to 10 hours is possible.
Direct Mode (DMO)
Like all Hytera DMR radios, the X1p supports the usage of both timeslots in the direct mode (DMO). In this way two calls can be made at the same time in the same area.
Specifications:
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz, 350-400 MHz, 450-520 MHz 800/900 MHz
|
|
Supported operation modes
|
DMR Tier III in reference to ETSI TS 102 361- 1/2/3/4 |
|
Memory capacity
|
1024
|
|
Number of zones
|
64
|
|
Channel spacing (analog)
|
12.5 / 20 / 25 kHz
|
|
Channel spacing (digital)
|
12.5 kHz
|
|
Operating voltage
|
7.4 V (nominal)
|
|
Standard battery
|
1100 mAh (lithium-ion battery)
|
|
Battery service life (analog)
(5-5-90 duty cycle, high transmitting power, standard battery) |
approx. 8 hours
|
|
Battery service life (digital)
(5-5-90 duty cycle, high transmitting power, standard battery) |
approx. 10 hours
|
|
Frequency stability
|
±1.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H × W × D)
(with standard battery, without antenna) |
119.5 × 57 × 21 mm (1100 mAh, lithium-ion battery)
119.5 × 57 × 23 mm (1400 mAh, lithium-ion battery) 119.5 × 57 × 26 mm (1800 mAh, lithium-ion battery) |
|
Weight (with standard battery and antenna)
|
approx. 240 g (1100 mAh, lithium-ion battery)
approx. 260 g (1400 mAh, lithium-ion battery) approx. 280 g (1800 mAh, lithium-ion battery) |
|
LCD display
|
160 x 128 pixels, 65,536 colours, 1.8 inches, 4 lines
|
|
Transmitter
|
|
|
Transmitting power
|
VHF: 1 / 5 W
UHF: 1 / 4 W |
|
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 |
|
Nominal audio sensitivity
|
+1 dB to -3 dB
|
|
Nominal audio distortion
|
≤ 3%
|
|
Digital vocoder type
|
AMBE+2™
|
|
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 |
60 dB at 12.5 kHz / 70 dB at 20/25 kHz 60 dB at 12.5 kHz / 70 dB at 20/25 kHz |
|
Intermodulation
TIA-603 ETSI |
70 dB at 12.5/20/25 kHz 65 dB at 12.5/20/25 kHz |
|
Spurious response rejection
TIA-603 ETSI |
70 dB at 12.5/20/25 kHz 70 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 distortion
|
≤ 3 % (500 mW)
|
|
Nominal audio power output
|
500 mW
|
|
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 discharge) ± 15 kV (air discharge) |
|
Protection against dust and moisture
|
IP67
|
|
Shock and vibration resistance
|
MIL-STD-810 C/D/E/F/G
|
|
Relative humidity
|
MIL-STD-810 C/D/E/F/G
|
|
GPS
|
|
|
Time to first fix (TTFF) cold start
|
< 1 minute
|
|
Time to first fix (TTFF) warm start
|
< 10 seconds
|
|
Horizontal accuracy
|
< 10 meters
|
1.3 Hytera HRT PD-600er-Serie
The HRTs of the PD-600 Series /PD-685/PD685G and PD-665/PD665G are the ideal buddies for the migrations into the digital voice operation. They are having a light-weight corpus and are supporting anlog, as well digital voice operation. Thanks to the fully featured keypad (PD-685), respectively the 3 programmable function keys and the bright LCD display, the radios are easy and uncomplicated to use. Even that the PD-600 Series does not provide an expressively marked distress pushbutton in sgnal colors, the system integrator may assign any function key as such. However, the radios are providing the full distress functionalities of the larger sister-models. The PD-600 Series is the affordable entry into the digital world by providing the nearly full functionality of digital radio networks according to Tier-II.
General Features:
Small, Lightweight and Thin
The handheld radios of the PD-600 Series are only 27 mm deep, making them absolutely compact. They are encased in a high-quality aluminum metal frame and with a weight of only 310 g (PD-685) comfortable and easy to bear for long deployments.
Long Battery Service Life
With the lithium-ion battery with 1500 mAh included in the delivery, the HRTs achieving a deployment time in digital operation of at least 16 hours. With the optionally available 2000-mAh battery, it will even be 20 hours.
Expanded Frequency Range
The frequency range in UHF stretches from 400 MHz to 527 (!) MHz
Support of Analog and Digital Voice Operation
The HRTs were developed in compliance with the ETSI mobile radio standard Digital Mobile Radio (DMR). The HRTs supporting the conventional DMR operation and can also be operated in analog mode. That makes them the ideal companion for the migration into digital mobile radio (DMR).
HRT PD-685 with full keypad
Additional functions (selection)
- Every radio of the PD6 series is also available with GPS. Variants with GPS support GIS applications, such as AVL and telemetry.
- Encryption with the encryption algorithm ARC4 (40 bit) in accordance with DMRA or with optional algorithms AES128 and AES256 (128 and 256 bit)
- Expansion interface for applications
- Man-down function (optional)
- Roaming (automated search of the next base station with the best signal quality
HRT PD-665 with limited keypad
Specifications:
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 527 MHz |
|
Supported operation modes
|
|
|
Memory capacity
|
1024
|
|
Zone capacity
|
64
|
|
Channel spacing
|
12.5 / 20 / 25 (analog)
12.5 kHz (digital) |
|
Operating voltage
|
7.4 V (nominal)
|
|
Battery
|
1500 mAh (Lithium-Ionen-Akku)
|
|
Battery service life (5/5/90)
|
approx. 11 h (analog)
approx. 16 h (digital) |
|
Frequency stability
|
±0.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H×W×D)
(with standard battery, without antenna) |
119 x 54 x 27 mm
|
|
Weight
|
approx. 310 g
|
|
Programmable keys
|
3
|
|
LCD display
|
160 × 128 pixels, 65,536 colors, 1.8 inch, 4 lines
|
|
Transmitter
|
|
|
Transmitting power
|
VHF: 1 / 5 W
UHF: 1 / 4 W |
|
Modulation
|
11 K0F3E at 12.5 kHz
14 K0F3E at 20 kHz 16 K0F3E at 25 kHz |
|
4FSK digital modulation
|
12.5 kHz (data only): 7K60FXD
12.5 kHz (voice & data): 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 dB to -3 dB
|
|
Nominal audio distortion
|
≤ 3%
|
|
Digital vocoder type
|
AMBE+2™
|
|
Receiver
|
|
|
Sensitivity (analogue)
|
0.22 μV (12 dB SINAD)
0.22 μV (typical) (12 dB SINAD) 0.4 μV (20 dB SINAD) |
|
Sensitivity (digital)
|
0.22 μV / BER 5%
|
|
Adjacent channel selectivity
TIA-603 ETSI |
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz 60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz |
|
Intermodulation
TIA-603 ETSI |
70 dB at 12.5/20/25 kHz 70 dB at 12.5/20/25 kHz |
|
Spurious response rejection
TIA-603 ETSI |
70 dB at 12,5/20/25 kHz 70 dB at 12.5/20/25 kHz |
|
Spurious response rejection
|
40 dB at 12.5 kHz
43 dB at 20 kHz 45 dB at 25 kHz |
|
Nominal audio power output
|
0.5 W
|
|
Nominal audio distortion
|
≤ 3 %
|
|
Audio sensitivity
|
+1 dB 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 discharge) ±15 kV (air discharge) |
|
Protection against dust and moisture
|
IP67
|
|
Shock and vibration resistance
|
MIL-STD-810 C/D/E/F/G
|
|
Relative humidity
|
MIL-STD-810 C/D/E/F/G
|
|
GPS (nur PD685G)
|
|
|
TTFF (cold start)
|
< 1 minute
|
|
TTFF (warm start)
|
< 10 seconds
|
|
Horizontal Accuracy
|
< 10 meter
|
1.4 Hytera HRT PD-795 Ex
For deployments in areas with explosive or combustive atmospheres (e.g. chemical facilities) the PD-795 Ex was developed. It already contains the GPS unit, as well the mandown option. Only the maximum output power is limited to 1,0 Watt, accordingly to the ATEX requirements, in all other technical aspects and its usability it is equivalent to the HRT PD-785G.
General Features:
The PD-795 Ex handheld radio complies with all the requirements of the European ATEX directives, IEC guidelines and the North American FM standard. Furthermore, the handheld radio terminal meets the MIL-STD-810C/D/E/F/G standard and is dustproof and waterproof in accordance with degree of protection IP67. The PD-795 Ex is there-fore ideal for secure and reliable use even in potentially dangerous conditions.
Fail-Safe Design
The use of batteries or accessory components with a lower level of protection automatically triggers an alarm so that errors of this type cannot occur.
Plastic Encapsulation
Both the radio and the battery are encased in a plastic housing to ensure that all internal connections are protected and sealed off from dangerous explosive gases and dust particles.
Innovative Battery LatchHigh-strength LCD Protective Cover
The high-strength LCD protective cover is extremely scratch-resistant and would even withstand being struck by a 1-kg hammer. The patented lock of the battery ensures that the battery cannot fall out if the radio transceiver should be dropped onto a hard surface
Integrated GPS as Standard Using the integrated GPS module, the PD795 Ex can send location information to dispatcher systems. Dispatchers can evaluate this information and use functions such as geofencing, radio localization and GPS tracking.
In addition to conventional DMR radio (DMR Tier II) and analog radio, the PD-795 Ex supports operation in DMR trunked radio (DMR Tier III) and analog MPT-1327 trunking systems
Upgradeable Software Dustproof and Waterproof
The PD-795 Ex is waterproof and dustproof in accordance with an IP67 degree of protection, which means it is capable of withstanding a water depth ofone meter for at least half an hour.The upgradeable software makes the use of new features possible. By altering the firmware-software, other digital and analog operating modes can be enabled, without the need for purchasing a new radio device.
Functions (excerpt)
- Supports different operating modes; optional analog or digital operation
- Versatile voice calls: Individual call, group call, allcall, distress call
- GPS functions (retrieving and sending location data)
- Data services (text messages, group text messages, control of the radio via API)
- Various analog signalling methods (MDC-1200, DTMF, 2-tone and 5-tone selective call, PL, DPL
- Supplementary services, radio check, remote monitor, distress call, radio disable/enable
- Different menu languages available
- One-touch functions (incl. text messages, voice calls and supplementary services)
- Automatic cell re-selection (roaming) in IP multi-site systems
- Secure encryption with encryption algorithm ARC4 (40 bit) in accordance with DMRA or with optional algorithms AES128 and AES256 (128 and 256 bit)
ATEX certification
All radios used in potentially explosive environments must comply with the European Union's ATEX directives. The PD795 Ex meets the following ATEX directives:
ATEX Gas Protection: II 2 G Ex ib IIC T4
- IIDevice group (gases, vapors, mist and dust)
2Device category, protection level: very high- Gfor explosible atmospheres (gas, vapor, mist)
- Exexplosion-protected, ATEX and IECEx-certified
- ibIntrinsic safety protection, transmitting power and surface temperature are restricted
- IICExplosion group (Acetylene, Hydrogen)
- T4Temperature class, max. permitted surface temperature 135 ˚C
ATEX Dust Protection: II 2 D Ex ib IIIC T120°C
- IIDevice group (gases, vapors, mist and dust)
- 2Device category, protection level: very high
- Dfor explosible atmospheres (dust)
- Exexplosion-protected, ATEX and IECEx-certified
- ibIntrinsic safety protection, transmitting power and surface temperature are restricted
- IIICExplosion group IIIC (coal dust, metal dust)
- T120Temperature class, max. permitted surface temperature 120 ˚C
ATEX Protection for Mining Application: I M2 Ex ib I
- IDevice group (mining)
- M2Device category: methane and dust, protection level: very high
- Exexplosion-protected, ATEX and IECEx-certified
- ibIntrinsic safety protection, transmitting power and surface temperature are restricted
- IExplosion group I (methane)
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz |
|
Supported operation modes
|
DMR Tier III in reference to ETSI TS 102 361-1/2/3/4 |
|
Memory capacity
|
1024
|
|
Number of zones
|
64 (with up to 16 channels/talkgroups each)
|
|
Channel spacing (analog)
|
12.5 / 20 / 25 kHz
|
|
Channel spacing (digital)
|
12.5 kHz
|
|
Operating voltage
|
7.4 V (nominal)
|
|
Standard battery
|
1800 mAh (lithium-ion battery)
|
|
Battery service life (analog)
(5-5-90 duty cycle, high transmitting power, standard battery) |
approx. 13 hours
|
|
Battery service life (digital)
(5-5-90 duty cycle, high transmitting power, standard battery) |
approx. 15 hours
|
|
Frequency stability
|
±1.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H × W × D)
(with standard battery, without antenna) |
141 x 55 x 39 mm
|
|
Weight (with antenna and standard battery)
|
495 g
|
|
LCD display
|
1,8 inches, 160 x 128 pixels, 65.535 colours
|
|
Transmitter
|
|
|
Transmitting power
|
VHF/UHF: 1 W
|
|
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 dB to -3 dB
|
|
Nominal audio distortion
|
≤ 3%
|
|
Digital vocoder type
|
AMBE+2™
|
|
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 |
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz |
|
Intermodulation
TIA-603 ETSI |
70 dB at 12.5/20/25 kHz
65 dB at 12.5/20/25 kHz |
|
Spurious response rejection
TIA-603 ETSI |
80 dB at 12.5/20/25 kHz
84 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
|
0.5 W
|
|
Nominal audio distortion
|
≤ 3 %
|
|
Audio sensitivity
|
+1 dB to -3 dB
|
|
Conducted spurious emission
|
< -57 dBm
|
|
Ambient data
|
|
|
Operating temperature range
|
-20°C to +50°C
|
|
Storage temperature range
|
-40°C to +85°C
|
|
ESD
|
IEC 61000-4-2 (level 4)
± 8 kV (contact discharge) ± 15 kV (air discharge) |
|
Protection against dust and moisture
|
IP67
|
|
Shock and vibration resistance
|
MIL-STD-810 C/D/E/F/G
|
|
Relative humidity
|
MIL-STD-810 C/D/E/F/G
|
|
Explosion protection
|
Gas: II 2G Ex ib IIC T4
Dust: II 2D Ex tb IIIC T120°C IP6x Mine: I M2 Ex ib I |
|
GPS
|
|
|
Time to first fix (TTFF) cold start
|
< 1 minute
|
|
Time to first fix (TTFF) warm start
|
< 10 seconds
|
|
Horizontal accuracy
|
< 10 meters
|
2. Digital Voice - Mobile/Fixed Radio Terminals (MRT/FRT)
2.1 Hytera MRT/FRT MD-785/785G
For the permanent installation into official vehicles or the permanent stationary operation we offer the powerful MRT/FRT MD-785 (MD-785G with GPS). It corresponds in handling, operation and menu structure consequently to the HRTs of Hytera. Somebody who can handle a handy-talkie, can do likewise with the MRTs and will not be in need of any further instruction. The MRTs are available in 2 different versions, 25 Watts (L) and 50 Watts (H). H versions are available upon request only.
In addition there is a wide variety of mounting material (remote heads), as well various microphones and handsets (with and without keypads) available.
General Features:
Excellent Voice Transmission
Thanks to the simultaneous application of narrow band codecs and digital error correction, the MD-785/MD-785G offers you outstanding audio quality in loud environments and in boundary regions of the radio coverage.
Dual Mode
The MRT features an analog as well as a digital mode and is compatible with the currently used analog systems, thereby simplifying your transition into the digital age.
Reliability and Quality
The MD785/MD785G complying with the standards MIL-STD-810 C/D/E/F/G and meeting the IP54 degree of protection. A high degree of reliability is assured even in harsh environments.
Versatile Functionality
Besides the traditional communication functions, the MD-785/MD-785G feature numerous digital and optional functions, including text messages, GPS location determination and a lone worker function.
Additional Functions (excerpt)
- Supports different operating modes; optional analog or digital operation
- Versatile voice calls: Individual call, group call, allcall, distress call
- GPS functions (retrieving and sending location data)
- Data services (text messages, group text messages, control of the radio via API)
- Various analog signalling methods (MDC-1200, DTMF, 2-tone and 5-tone selective call, PL, DPL
- Supplementary services, radio check, remote monitor, distress call, radio disable/enable
- Different menu languages available
- One-touch functions (incl. text messages, voice calls and supplementary services)
- Automatic cell re-selection (roaming) in IP multi-site systems
- Secure encryption with encryption algorithm ARC4 (40 bit) in accordance with DMRA or with optional algorithms AES128 and AES256 (128 and 256 bit)
Expansion Interface
Thanks to the expansion interface, the range of functions offered by the MD-785/MD-785G can be expanded to include key functions. Accessories and applications developed by partners can be connected to this interface.
Intuitive Interface and Key Guidance
The high-resolution LCD screen offers a clear display, even under difficult light conditions. The large keyboard and ergonomic programmable keys facilitate efficient and productive communication.
Upgradeable Firmware
Upgradeable software makes the use of new features possible. By altering the firmware-software, other digital and analog operating modes can be enabled, without the need for purchasing a new radio device.
Picture shows MD-785 as stationary enduser-unit (FRT)
Remote head for vehicular installations
Specifications:
|
General Data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz, 350-400 MHz, 450-520 MHz 800/900 MHz
|
|
Supported operation modes
|
DMR Tier III in reference to ETSI TS 102 361-1/2/3/4 |
|
Memory capacity
|
1024
|
|
Zone capacity
|
64 (with max. 16 channels/talkgroups 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)
|
5 W: ≤ 5 A
25 W: ≤ 8 A 45 W / 50 W: ≤ 12 A |
|
Frequency stability
|
±1.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H × W × D)
|
174 x 60 x 200 mm
|
|
Weight
|
1.7 kg
|
|
LCD display
|
220 x 176 pixels, 262,000 colours, 2.0 inches, 4 lines
|
|
Transmitter
|
|
|
Transmitting power
|
5 – 25 W (adjustable)
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
|
|
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 (MD785G only)
|
|
|
Time to first fix (TTFF) cold start
|
< 1 minute
|
|
Time to first fix (TTFF) warm start
|
< 10 seconds
|
|
Horizontal accuracy
|
< 10 meters
|
2.2 Hytera FRT MD-655
The FRT MD-655 is especially suitable as fixed radio terminal for data communication. telemetry and remote control. It is predistined for the transmission of alerting messages, remote control of signalling devices, for doors, gates or intercomms, as well for the transmission of technical values within digital radio networks. It may also work in DMO, where there is no network infrastructure.
If connected with the optional remote-control-microphone an extension to a small land-mobile radio (MRT) is possible, where the black-box will be installed in the trunk and the microphone will be in the drivers cabin. With that there is a MRT available, for vehicles with limited space.
Specifications:
|
General Data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz |
|
Supported operation modes
|
|
|
Memory capacity
|
1024
|
|
Zone Capacity
|
64 (with max. 16 channels/talkgroups 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
|
via handheld microphone (limited to numerical values)
|
|
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
|
3. Digital Voice - Basise Station Transceivers/Repeater Stations (BTS/mBTS)
The base transceiver stations (BTS) or repeaters are representing the network/system infrastructure and with that are being an integral part of a digital radio network. The network infrastructure ascertains the radio coverage within larger regions, different territories located apart of each other or within larger, complex buildings, whereas it makes no difference, in which part of the globe a BTS is being installed.
The connection of the BTS among each other will be done by the so called "IP-Site-Connect" which makes use of an IP-basing network connection. In this way the user gets the opportunity to talk with another subscriber, who is located in a distant region (e.g. another city) or to talk with a remote long distance operation center (LDOC).
Certainly there is also a remote control and diagnostic tool for a BTS, which offers a complete overview of the most important parameters of it. In order to do that, a technically trained person will use a special software (RDAC) on his service notebook and check into the system, where also alterations within the radio network can be done. In case of any malfunctions, the RDAC will omit a technical alert, that actions can be taken with immediate effect.
The PC-based application can be used to monitor, inspect and control the RD625. The software supports network access from multiple points and allows administrators to monitor the DMR radio network all the time.
All Hytera base stations having the opportunity, to be connected to VoIP phone switches, in order to provide a radio subscriber a link into the public telephone network. In such a way a radio subscriber may perform a telephone call to phone subscriber and vice versa. Phone calls can be done as single/private call or group call within a certain talkgroup (TG)
The network may be secured against unauthorized use, also authorized subscribers may be limited to use only certain BTS in regional areas or establishing connections to a limited number of groups or call types.
For different types of deployments there are different BTS, which we want to introduce you in further.
3.1 Hytera BTS RD-985/985S
With 50 Watts output power, the BTS RD-985/RD-985S are the leading edge. They are predistined to provide radio coverage within larger regions and as well for in-building/in-house coverage within larger, complex facilities or where several antennas and combiners shall be used.
The RD-985 supports radio networks accordingly to Tier-II (RMO), whereas RD-985S is also supporting trunking networks accordingly to Tier-III or XPT (TMO) and in analog networks it may also support sumulcast operation.
Both BTS are made as 19" rack device and can be easily integrated into installation rooms or into 19" racks.
General Features:
Dual Mode and Automatic Change of Operation Mode
The RD985/985S can be operated both in analog and in digital mode and is completely compatible with the analog systems currently in use. The device can automatically change between digital and analog mode depending on the type of receiver signal and, thanks to the elimination of manually configuring frequencies and channels, both time and money are saved.
100% Efficiency
The BTS offers constant power (up to 50 watts) and therefore meets the high requirements of all conventional digital radio systems.
Flexible Installation Options
The BTS can be installed in a 19-inch equipment rack using an optional installation kit. Alternatively, you can easily install it on a rack, a mounting support or a work table. Thanks to the space intended for an optional duplexer inside the device, the device remains compact.
Efficiency in the VHF/UHF Range
Thanks to the TDMA technology, twice as many users can use the same channel, such as is the case with analog or digital FDMA systems. Due to the restricted frequency resources, this represents an important relief and reduces the expenses for system terminals and frequency licenses.
Secure communication
The RD985 repeater features an enhanced digital encryption function that protects your communication against enemy (or friendly) eavesdropping or monitoring.
High cooling capacity
Thanks to heat dissipation, the power amplifier can dissipate its heat exceptionally efficiently. In addition, the integrated fan system ensures stable and powerful operation.
Operation in Unmanned or Operator Mode
If the base station is operated on an analog channel, you can choose between operator or unmanned mode. In operator mode the base station can be used as a duplex transceiver.
High reliability
Since the repeater was designed according to military standards, it offers high reliability and excellent performance. Test results from independent laboratories have shown that the device can be operated for up to 100,000 hours without interference and it therefore meets the requirements for use in extreme situations.
High Resolution 2"-LCD-Color Display
Whether during regular operation or an ongoing maintenance: The large LCD color display will offer all relevant information.
Professional Design
The innovative illumination on the voloume knob provides additional usability. Thanks to the well designed menu and the large selection knob, the use of the BTS is very simplified.
Informative LED-Display
The 8 LED display on the front panel providing an easy identification of the current status.
Ergonomic Design
The slanted grips giving the opportunity of an easy installation or transport of the BTS.
Specifications:
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz, 350-400 MHz, 450-520 MHz 800/900 MHz
|
|
Supported operation modes
|
DMR Tier II in reference to ETSI TS 102 361-1/2/3
* = only version "S"
|
|
Channel/Talkgroup capacity
|
16
|
|
Number of zones
|
1
|
|
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)
|
≤ 0.8 A
|
|
Max. power consumption (during transmission)
|
≤ 11 A
|
|
Frequency stability
|
±0.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H × W × D)
|
88 x 483 x 366 mm
|
|
Weight
|
8.5 kg
|
|
LCD display
|
220 x 176 pixels, 262,000 colours, 2.0 inches, 4 lines
|
|
Transmitter
|
|
|
Transmitting power
|
5 – 50 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 dB 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 |
80 dB at 12.5/20/25 kHz 80 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
|
0.5 W
|
|
Nominal audio distortion
|
≤ 3 %
|
|
Audio sensitivity
|
+1 dB to -3 dB
|
|
Conducted spurious emission
|
< -57 dBm
|
|
Ambiant data
|
|
|
Operating temperature range
|
-30 °C to +60 °C
|
|
Storage temperature range
|
-40 °C to +85 °C
|
3.2 Hytera BTS RD-625
The base transceiver station RD-625 is an "allrounder" among the network components for digital radio networks. It is designed for either deployment, for regional coverage and for in-house installation within complex facilities, such as stadiums, shopping centers, airports. Due to the extreme small dimensions, the BTS may be easily and concealed integrated in existing house installations (e.g. on a wall inside a building or on the rooftop near the antenna). With its 25 Watts the BTS can provide a good coverage within a city. Although the dimensions are very small, a duplexer still can be integrated within the corpus of the BTS and furthermore, all the functionalities of digital radio networks accordingly to Tier-II will be supported.
General Features:
Dual Mode and Automatic Change of Operation Mode
The BTS RD-625 repeater can be operated both in analog and in digital mode and is completely compatible with analog systems currently in use. The device can automatically change between digital and analog mode depending on the type of receiver signal, saving both time and money by eliminating the need to configure frequencies and channels manually.
Automatic AC/DC Switchover
The integrated power supply of the RD625 automatically chooses between alternating current and direct current. This makes it possible to provide a fail-safe radio signal by connecting the repeater to an independent source of direct current (UPS) in addition to the normal supply of power. If the AC supply fails, the RD625 switches to the second power supply automatically.
Easy Installation
The RD625's well-engineered design makes wall mounting easy using the optionally available wall bracket. This makes it possible to install the repeater flexibly and conveniently in buildings.
Compact Design
The RD-625 combines transmitter and receiver components, the voltage supply and the duplexer (optional) in its compact corpus.
Specifications:
|
General data
|
|
|
Frequency range
|
VHF: 136 - 174 MHz
UHF: 400 - 470 MHz |
|
Supported operation modes
|
|
|
Channel capacity
|
16
|
|
Channel spacing
|
12.5 / 20 / 25 kHz
|
|
Operating voltage
|
13.6 ± 15% VDC
90 V - 264 VAC |
|
Max. power consumption (in stand by)
|
≤ 0.5 A
|
|
Max. power consumption (during transmission)
|
≤ 5.5 A
|
|
Frequency stability
|
±0.5 ppm
|
|
Antenna impedance
|
50 Ω
|
|
Dimensions (H × W × D)
|
210 x 348 x 108 mm
|
|
Weight
|
2870 g
|
|
Transmitter
|
|
|
Transmitting power
|
1 – 25 W continuous
|
|
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 dB to -3 dB
|
|
Nominal audio distortion
|
≤ 3 %
|
|
Digital vocoder type
|
AMBE++
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Receiver
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Sensitivity (analog)
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0.3 μV (12 dB SINAD)
0.22 μV (typical) (12 dB SINAD) 0.4 μV (20 dB SINAD) |
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Sensitivity (digital)
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0.3 μV / BER 5%
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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 |
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Intermodulation
TIA-603 ETSI |
75 dB at 12.5/20/25 kHz 70 dB at 12.5/20/25 kHz |
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Spurious response rejection
TIA-603 ETSI |
75 dB at 12.5/20/25 kHz 70 dB at 12.5/20/25 kHz |
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Hum and noise
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40 dB at 12.5 kHz
43 dB at 20 kHz 45 dB at 25 kHz |
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Nominal audio distortion
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≤ 3 %
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Audio sensitivity
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+1 dB to -3 dB
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Conducted spurious emission
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< -57 dBm
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Ambiant data
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Operating temperature range
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-30 °C to +60 °C
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Storage temperature range
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-40 °C to +85 °C
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