HM789
HM789 is the next generation of professional digital mobile radio providing greater flexible and scalability. The HM789 supports a single control head as standard with options for remote control head mounting and dual control heard to suit different environments (such as vehicles, motorcycles and fixed control rooms) ensuring efficient communication. A rich feature set and ability to integrate into existing services provides greater efficiency.
Highlights
Functions
More Flexible
Flexible control heads and accessories allow installation according to the users requirements with a cable length of up to 40m .
Clearer Audio
Adopts AI noise cancellation technology to filter out background noise (such as road noise), eliminate echoes, enhance speech and reduce howling when in close proximity to the transmitting radio. With this technology, the mobile radio provides crisper and clearer audio when transmitting and receiving voice calls.
More Reliable
Improved receiver sensitivity improves audio quality in weak signal areas to provide clearer audio
Rich Scalable Application
Supports multiple connections through BT,and the accessory and network (Ethernet) ports. It also supports Clarity Transmission and back to back connections which will greatly facilitate your solutions.
HM785 Product Video
Accessories for HM789
Included as standard with HM789
Antenna
Cables
Charger & Power
Mounting
Audio
Related products that work with the HM789
Technical Specifications
General
- Frequency Range
- UHF: 350-470 MHz VHF: 136-174 MHz
- Channel Capacity
- 1024
- Operating Voltage
- +13.6v ± 15%
- Dimensions(W×H×D)
- 61.5 x 177 x 179 mm
- Weight
- 1520g
- Display
- 2.4 inch LDC display
Receiver
- Sensitivity
- Analogue: 0.18µV (12dB SINAD)
- Analogue: 0.16µV (12dB SINAD) (typical)
- Digital: 0.18µV / BER 5%
- Selectivity
- TIA-603: 60dB @12.5kHz / 70dB @20/25kHz
- ETSI: 60 dB @12.5kHz / 70dB @20/25kHz
- Inter-modulation
- TIA-603: 70dB @12.5/20/25kHz
- ETSI: 70dB @12.5/20/25kHz
- Spurious Response Rejection
- TIA-603: 70dB @12.5/20/25kHz
- ETSI: 70dB @12.5/20/25kHz
- Blocking
- TIA-603: 80 dB
- ETSI: 84 dB
- Hum and Noise
- 40dB @12.5kHz; 43dB @20kHz; 45dB @25kHz
- Related Audio Power Output
- internal (20 Ohm load): 3W
- external (8 Ohm load): 7.5W
- Max Audio Power Output
- internal (20 Ohm load): 8W
- 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 UHF: 1-25W; VHF: 5-25W
- High Power UHF: 1-45W; VHF: 5-50W
- 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
- Digital protocol
- ETSI-TS102 361-1,-2,-3,-4
Environmental Specifications
- Dust & Water Intrusion
- IP54
Location Service
- GNSS
- GPS, GPS+GLONASS, GPS+BDS
- TTFF (time to first fix) cold start
- < 1 minute
- TTFF (time to first fix) hot start
- < 10 seconds
- Horizontal accuracy
- < 5 meters