The high-performance, yet simple-to-use TM-628H mobiles are created to give you the immediate, reliable communication you need to keep mobile teams working efficiently. HYT's voice compander audio enhancement and a powerful 5W internal or 13W external speaker ensure superb clear, crisp sound, even in noisy environments.


Automatic Number Identification (ANI)
After HDC2400 or HDC1200 signaling is received, the radio will display the ID or alias of the other party. The radio firmware supports a selective call list containing up to 128 

Built-in modem
The built-in 1200/2400bps MSK modulator offers data transmission capability.*
Emergency alarm
The emergency button allows for a transmission of a signal indicating an emergency situation.
Stun and revive
The stun function permits an authorized radio to remote disable another lost radio. This function can ensure you higher security and is perfect for the radio rental business. 
A stunned radio will return to operational use when the revive code is received.
Public Address (PA)
The public address feature feeds microphone audio through a powerful PA amplifier to the external speaker, offering robust, out of vehicle, audio clarity.
Large 15-Segment LCD Display
Users may toggle the display to channels or zones, auto dial numbers or other functional settings. The keypad and display illuminates to provide visibility for night time operation.
128 Channels and Dynamic Regrouping
The 128 channel and zoning capability of the TM-628H offers flexibility in organizing work groups. Each channel and zone can be assigned a user friendly name for easy identification. Dynamic regrouping offers flexibility in a changing work group environment. 
Lone Worker
The lone worker feature provides added security and safety for individuals who work remotely from their team. Since this function is enabled, the radio will emit an alert tone after the preset time elapses, then the user must press any key, otherwise the emergency procedure will be activated.
Ignition Sense, Timed Power Off
When this function is enabled, you have to connect the ignition wire to the rear panel of the radio so that you can turn on/off the radio by igniting/stalling the car. The radio can only be turned on by igniting the car and will be turned off automatically within the preset time after the car stalls. 
Versatile Scan 
The TM-628H scan allows for single or multiple zone scanning. Scanning features include add / delete scan channels, nuisance channel delete and user selectable priority channel. 
Wired Cloning / MSK Wireless Cloning 
Allows users to quickly and easily duplicate one radio’s parameters into another radio.
UST (User Selectable Tone)
The user can select CTCSS/CDCSS codes via the programmed function key.


Frequency Range136-174MHz    400-470MHz 
Channel Capacity128
Zone Capacity16
Channel Spacing25/20/12.5KHz
Operating Voltage13.6V DC ±15%
Current Drain
Standby: 0.5A
Receive: <2.0A
Transmit: 12A (50W/45W)/< 5A (5W)
Frequency Stability±2.5ppm
Antenna Impedance50Ω
Dimensions (W×H×D)154 X 48 X 161mm


RF Power Output45W /50W
Spurious and Harmonics< -23dBm
FM Noise>45dB (25/20KHz) >40dB (12.5KHz)
Audio Distortion≤3%


Sensitivity0.28 μV
Spurious Response Rejection70
S/N (wide/medium/narrow)>45dB (25/20KHz) >40dB (12.5KHz)
Internal Audio Power Output (Rated)5W (less than 5% distortion) 3W (less than 3% distortion)
External Audio Power Output (Rated)13W (less than 5% distortion) 12W (less than 3% distortion)

All specifications are subject to change without notice due to continuous development.


Standard Accessories

Optional Accessories

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