Hytera HP795Ex IIA UHF - Intrinsically Safe DMR Portable Two-way Radio

The HP795Ex IIA intrinsically safe DMR portable two-way radio is designed with a strong focus on safety, durability, and user comfort. It features a robust and secure construction combined with advanced ergonomics, delivering clear and powerful audio, extended operating time, and reliable long-range communication. Fully compliant with strict IECEx explosion-proof standards, the radio holds internationally recognized IECEx certifications. Its certified intrinsically safe design meets global explosion-proof requirements, making it a dependable communication tool for industries such as oil and gas, fire and rescue services, airports, manufacturing, and other hazardous environments.

General characteristics

Frequency range
UHF: 400–480 MHz

Channels and zones
Channel capacity: 1024
Zone capacity: 64
Channels per zone: 256

Channel spacing
Analogue: 12.5 kHz / 20 kHz / 25 kHz
Digital: 12.5 kHz

Digital protocol
ETSI TS 102 361-1, -2, -3

Operating voltage
7.4 V (rated)

Battery
Standard 2150 mAh intrinsically safe Li-ion battery (typical)

Battery life (5-5-90 duty cycle)
Up to 24 hours with GNSS disabled
Up to 21 hours with GNSS enabled

Frequency stability
±0.5 ppm

Antenna impedance
50 ohms

Dimensions (H × W × D)
130 × 55 × 37 mm

Weight
Approximately 390 g

Display
2.4-inch LCD, 320 × 240 pixels, 262,000 colors

Connectivity
Bluetooth 5.3 BLE + EDR
Wi-Fi 2.4 GHz
NFC compliant with ISO / IEC 15693

Intrinsically safe classification – IIA version
IECEx: Ex ib I Mb
Ex ib IIA T4 Gb
Ex ib IIIC T120°C Db
Ambient temperature: −25 °C to +50 °C
Ingress protection: IP66, IP67, IP68

ATEX: I M2 Ex ib I Mb
II 2G Ex ib IIA T4 Gb
II 2D Ex ib IIIC T120°C Db
Ambient temperature: −25 °C to +50 °C

Receiver performance

Sensitivity
Analogue: 0.16 µV (12 dB SINAD)
Analogue typical: 0.14 µV (12 dB SINAD)
Digital: 0.16 µV at 5% BER

Selectivity
TIA-603: 60 dB at 12.5 kHz, 70 dB at 20/25 kHz
ETSI: 60 dB at 12.5 kHz, 70 dB at 20/25 kHz

Intermodulation
TIA-603: 70 dB
ETSI: 65 dB

Spurious response rejection
TIA-603: 70 dB
ETSI: 70 dB

Blocking
TIA-603: 80 dB
ETSI: 84 dB

Hum and noise
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz

Rated audio output power
0.5 W

Rated audio distortion
Less than 3%

Audio response
+1 to −3 dB

Conducted spurious emissions
Less than −57 dBm

Transmitter performance

RF output power
HP795Ex IIA UHF: 1 W / 4 W

FM 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

Conducted and radiated emissions
−36 dBm below 1 GHz
−30 dBm above 1 GHz

Modulation limiting
±2.5 kHz at 12.5 kHz
±4.0 kHz at 20 kHz
±5.0 kHz at 25 kHz

FM hum and noise
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz

Adjacent channel power
60 dB at 12.5 kHz
70 dB at 20/25 kHz

Audio response
+1 to −3 dB

Audio distortion
Less than 3%

Digital vocoder
AMBE+2™

Environmental performance

Operating temperature
−30 °C to +60 °C (radio only, battery −20 °C)
−25 °C to +60 °C in hazardous areas

Storage temperature
−40 °C to +85 °C

Electrostatic discharge protection
IEC 61000-4-2, level 4
±8 kV contact discharge
±15 kV air discharge

Ingress protection
IP64, IP66, IP67, IP68 in accordance with IEC 60079-0:2017 and IEC 60529

Drop, shock, and vibration resistance
Compliant with MIL-STD-810H

Humidity resistance
Compliant with MIL-STD-810H

Location and positioning services

Time to first fix (cold start)
Less than 35 seconds

Time to first fix (hot start)
Less than 1 second

Horizontal positioning accuracy
Approximately 1 meter using dual-frequency GNSS
95% probability at −130 dBm with at least 22 operational satellites
Accuracy values are based on long-term tracking with more than five visible satellites at nominal signal strength

GNSS support
GPS: L1 / L5
BeiDou: B1I / B2a
GLONASS: L1
Galileo: E1 / E5a