Hytera HM785 User Manual

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and Data, and then press the OK/Menu key.
8.1.3.3 Lone Worker
The Lone Worker feature allows the radio to automatically send an emergency alarm to your companion or the
control center in either of the following scenarios:

You do not operate the radio within the preset time.

The radio does not transmit voice within the preset time.
You can press the keys, rotate the knob, or transmit voice to exit the emergency mode.
To enable or disable this feature, do either of the following:

Go to Security > Lone Worker, and then press the OK/Menu key.

Press the preprogrammed Lone Worker key.
8.1.3.4 TF Card
The TF card is used for encryption or audio recording.
TF Encryption
The TF Encryption feature allows the radio to encrypt the voice and data services with the TF card installed and the
hardware encryption configured.
If the communication requires high security, you can customize the encryption algorithm and key and store them in
the TF card.
Recorder
The Recorder feature allows you to record live sounds and calls to the TF card and manage the recording files stored
in the TF card.
The Recorder feature is enabled by your dealer.

Live recording
The Live Record feature is to record the sound in the current environment. The maximum recording time is
495 minutes.

Enabling the Live Record feature
Go to Menu > TF Application > Recorder > Live Record, and then press the OK/Menu key to enable
the feature.

Exiting the recording

Hytera HM785 Specifications

General

Channel Capacity	1024
Operating Voltage	13.6 V ± 15%
GPS	Yes
Bluetooth	Yes
Channel Spacing	12.5/20/25 kHz
Operating Temperature	-30°C to +60°C
Frequency Stability	±0.5 ppm
Antenna Impedance	50 Ω
Modulation Limiting	±2.5 kHz @ 12.5 kHz; ±4.0 kHz @ 20 kHz; ±5.0 kHz @ 25 kHz
Audio Distortion	≤3%
Intermodulation	≥65dB
Spurious Response Rejection	≥70dB
IP Rating	IP54
Frequency Range	UHF: 400-527MHz
Display	2.4-inch
Digital Protocol	DMR
FM Hum & Noise	≥40dB
Adjacent Channel Power	≥60dB
Audio Response	+1~-3dB
Conducted & Radiated Emission	-36dBm ＜1GHz; -30dBm ＞1GHz
Adjacent Channel Selectivity	≥60dB
Zone Capacity	64 (each with a maximum of 256 channels)
Sensitivity (Analog)	0.22 μV (12 dB SINAD)