Hytera HM655 DMR mobile two-way radio UHF

This new generation entry-level professional DMR mobile two-way radio is designed to provide reliable voice and data communication in both vehicles and desktop installations. It is compact and lightweight making it easy to install, with a convenient speaker microphone with a display. The radio is born to be your best partner in transportation, utilities and more.

RELIABLE COMMUNICATION

Thanks to the high RX sensitivity, the HM655 can deliver clear and dependable communication even in areas where the signal is weak or unstable.

HANDHELD CONTROL HEAD

The HM655 has a convenient Speaker microphone that has a display and controls which can be mounted in close proximity and allow you to turn on or off the radio, switch channels or contacts, adjust the volume.

SUPERIOR DURABILITY

The HM655 withstands harsh temperatures, shock, vibration and meets the MIL-STD-810G standards. The device also features an IP54 rating against dust and water intrusion. The connection between the palm microphone and the 10-pin aviation connector is very secure preventing it from becoming loose. The palm microphone cord has excellent stretching ability to protect it thus giving the maximum service life.

Technical Specifications

General

Frequency range UHF: 400-470 MHz

Channels & zones Channel capacity: 512, Zone capacity: 16

Channel spacing analogue 12.5kHz/20kHz/25kHz

Channel spacing digital 25kHz

Operating voltage 13.6 V DC ±15%

Current drain standby: <0.5 A, receive: <2.0 A, transmit 5W: <4 A, transmit 25W: < 8 A, transmit 45W: <12 A

Frequency stability +0.5 ppm

Antenna impedance 50 Ohm

Dimensions (H x W x D) 164 x 154 x 42 mm

Weight 1100g

Digital protocol ETSI-TS102 361-1,-2,-3

Receiver

Sensitivity Analogue: 0.18µV (12dB SINAD), Analogue: 0.16µV (12dB SINAD) (typical), Digital: 0.18µV / BER 5%

Selectivity TIA-603: 65dB @12.5kHz / 75dB @20/25kHz, ETSI: 50 dB @12.5kHz / 70dB @20/25kHz

Inter-modulation TIA-603: 75dB @12.5/20/25kHz, ETSI: 70dB @12.5/20/25kHz

Spurious Response Rejection TIA-603: 75dB @12.5/20/25kHz, ETSI: 70dB @12.5/20/25kHz

Blocking TIA-603: 90 dB, ETSI: 84 dB

Hum and Noise 40dB @12.5kHz; 43dB @20kHz; 45dB @25kHz

Rated Audio Power Output internal (20 Ohm load): 3W, external (8 Ohm load): 6W

Max Audio Power Output internal (20 Ohm load): 7.5W, external (8 Ohm load): 20W

Rated Audio Distortion <3%

Audio Response +1 to -3 dB

Conducted Spurious Emission < -57 dBm

Transmitter

RF Power Output Low Power model: 5-25 W

FM Modulation 11K0F3E @12.5kHz, 14K0F3E @20kHz, 16K0F3E @25kHz

4FSK Digital Modulation 12.5kHz data only: 7K60FXD, 12.5kHz data and voice: 7K60FXW

Conducted/Radiated Emission -36dBm @<1GHz; -30dBm @>1GHz

Modulation Limiting ±2.5kHz @12.5kHz; ±4.0kHz @20kHz; ±5.0kHz @25kHz

FM Hum and Noise 40dB @12.5kHz; 43dB @20kHz; 45dB @25kHz

Adjacent Channel Power 60dB @12.5kHz; 70dB @20/25kHz

Audio Response +1 to -3 dB

Audio Distortion <3%

Digital Vocoder Type AMBE+2

Environmental

Operating temperature -30°C to +60°C

Storage temperature -40°C to +85°C

ESD IEC 61000-4-2 (level 4), +8kV (contact); +15kV (air)

American Military standard MIL-STD-810G

Dust & water protection IP54

Humidity per MIL-STD-810G standard

Shock and vibration per MIL-STD-810G standard