Hytera PD795 Ex – ATEX handheld radio

PD795 Ex comes to be the first ATEX intrinsically safe DMR handheld from Hytera.

The PD795 Ex handheld radio from Hytera meets the open ETSI DMR standard. Compliance with European ATEX directives, FM standards, IEC standards, and its outstanding robustness ensure reliable communication in dangerous environments, such as those containing explosive gases and combustible dust.


  • Technical HighlightsImproved PCB Circuit Layout & EMC Shielding
    To achieve such a high safety standard, Hytera PD79X Ex adopts optimized distributed line design on PCB, minimizing the odds of circuit fault. All the key components on the PCB are covered with shield, and the space between lines, between components, between component and shield are properly spaced , which translates to better EMC performance and less internal interference.

    Innovative Silicone Encapsulating
    Silicone encapsulant technology prevents the internal circuits from interface with air and liquid which effectively stops the intrusion of liquid, dust and harmful gas. The silicone encapsulating process is delicate and complicated. As a result, every single PD79X Ex radio spends eight hours in the manufacture line.

    Innovative Electrostatic Free Design
    Hytera applies patent on electrostatic free design and dual-material molding technology in this intrinsically safe portable. The static dispersive material (blue) minimizes static accumulation on the surface, thus reducing the probability of static discharge on the radio. Meanwhile the robust material (black) maximizes the ruggedness of the enclosure.

    IP67 (non-explosion-proof)
    The Ingress Protection reaches IP67 (6: Totally protected against dust; 7: Protected against the effects of immersion up to 1m for 30 minutes). It’s the highest IP level for land-based wireless radio application.

    Patented Battery Latch
    To disengage the battery from Hytera digital portables, the lock and bolt of the latch need to be moved along two different axes. Such a patented design ensures no disengagement of the battery pack from the main radio in case of dropping that might cause spark.



    ATEX is the European Union directive to which all two-way radios must conform if used in potentially explosive environments. It replaces the Cenelec classification in all European Union member states and EFTA countries.

    IECEx Scheme is the future route to global compliance certification. Its aim is to harmonize standards to allow free movement of goods by establishing a world-wide accepted standard.

    FM (FM Approvals LLC) is a member of Nationally Recognized Testing Laboratories of U.S.A. It strives to offer global services with unsurpassed technical integrity and exceptional customer satisfaction.



    Chemical Industry
    Flammable gases, liquids and solids are converted and processed in many different processes in the chemical industry. These processes may give rise to explosive mixtures.

    Power Generating Companies
    Lump coal, which is not explosive in mixture with air, may be converted in the conveying, grinding and drying processes into coal dusts capable of forming explosive dust/air mixtures.

    The by-product of coal mining is gas. Following the coal exploiting, the gas will gather under the ground. If not in good security management, gas in coal mine can lead to serious gas explosion.

    Fire Fighting
    As for fire fighting, some task critical situations such as oil spill or natural gas leakage need high security electrical equipments.

    Pharmaceutical Industry
    Alcohols are often used as solvents in the production of pharmaceuticals. Agents and auxiliary materials that give rise to dust explosions, such as lactose, may also be used.

    The hydrocarbons handled in refineries are all flammable and, depending on their flash point, may give rise to explosive atmospheres even at ambient temperature. The area around oil processing plant is generally regarded as a place where explosive atmospheres may occur.

Frequency Range
UHF1: 400-470MHz, VHF: 136-174MHz
Channel Capacity
Zone Capacity
(each with a maximum of 16 channels)
Channel Spacing
Operating Voltage
7.4V (rated)
1800mAh (Li-Ion)
Battery Life
(5-5-90 Duty Cycle, High TX Power)
High-capacity 2000mAh Li-Ion Battery
Analog: 14.5h/13h(GPS)
Digital: 17h /15h(GPS)
Frequency Stability
Antenna Impedance
Dimensions (H×W×D)
(with standard battery, without antenna)
141X 55 X 39mm
Weight (with antenna & standard battery)
LCD display
160*128 pixels, 65536 color, 1.8-inch
Anti-explosion levels: ATEX II 2G Ex ib IIC T4
II 2D Ex ib IIIC T120℃ IP5X
I M2 Ex ib
Anti-explosion levels: IECEx Ex ib IIC T4
Ex ib IIIC T120℃ IP5X
Ex ib I
Anti-explosion levels: FM/CSA Class I, Zone 1 AEx/Ex ib IIC T4 Gb
Class II, III Div 1,
Group E, F, G T120℃
RF Power Output
FM Modulation
11K0F3E @ 12.5KHz
14K0F3E @ 20KHz
16K0F3E @ 25KHz
4FSK Digital Modulation
12.5KHz data only:7K60FXD
12.5KHz data & voice:7K60FXW
Conducted/Radiated Emission
Modulation Limiting
±2.5KHz @ 12.5KHz
±4.0KHz @ 20KHz
±5.0KHz @ 25KHz
FM Noise
40dB @ 12.5KHz
43dB @ 20KHz
45dB @ 25KHz
Adjacent Channel Power
60dB @ 12.5KHz
70dB @ 20/25KHz
Audio Response
+1 ~ -3dB
Audio Distortion
Digital Vocoder Type
Digital Protocol
ETSI-TS102 361-1, 2&3
0.3μV (12dB SINAD)
0.22μV (typical) (12dB SINAD)
0.4μV (20dB SINAD)
0.3μV /BER5%
60dB @ 12.5KHz/70dB @ 20&25KHz
60dB @ 12.5KHz/70dB @ 20&25KHz
70dB @ 12.5/20/25KHz
65dB @ 12.5/20/25KHz
Spurious Response Rejection
70dB @ 12.5/20/25KHz
70dB @ 12.5/20/25KHz
40dB @ 12.5KHz
43dB @ 20KHz
45dB @ 25KHz
Rated Audio Power Output
Rated Audio Distortion
Audio Response
+1 ~ -3dB
Conducted Spurious Emission
< -57dBm
Environmental Specifications
IEC 61000-4-2 (level 4)
±8kV (contact)
±15kV (air)
American Military Standard
American Military Standard
Shock & Vibration
TTFF (Time To First Fix) Cold Start
<1 minute
TTFF (Time To First Fix) Hot Start
<10 seconds
Horizontal Accuracy
<10 meters


#Accurate long-term track (95% value>trackable for 5 satellites in rated-130dBm signal strength).

All Specifications are tested according to applicable standards, and subject to change without notice due to continuous development.

    • PD795 Ex
    • Lithium-ion battery (1800 mAh)
    • Charger
    • Switching power adapter for charger, 100 – 240 VAC – 12 VDC / 1 A
    • Standard antenna:
      VHF 147 – 160 MHz (AN0153H04)
      UHF 400 – 470 MHz (AN0435H02)
    • Hand strap
    • Belt clip
    • Manual