✅ Yes: Fleets already on Tetra infrastructure, safety-critical roles, noisy environments.
❌ No: Hobbyists or small teams on analog or DMR – Tetra is overkill and requires network licensing.
The core of the manual focuses on TETRA-specific calling modes:
| Feature | Specification |
| :--- | :--- |
| Frequency Range | 380-430 MHz; 806-870 MHz (Regional variants) |
| Power Output | Adjustable: 1W to 10W (High power mode) |
| Channel Capacity | 1024 talk groups / 4000 contacts |
| Display | 2.4-inch OLED, sunlight-readable |
| GPS | Integrated 72-channel, TTFF (cold start) < 1 minute |
| Audio | 4W external speaker output, 2W internal |
| Operating Voltage | 10.8V – 15.6V DC (standard vehicle range) |
The MT680 R4.0 supports multiple GPS trigger modes:
To check your GPS status: Press the programmed GPS key or navigate Menu > GPS > Satellite Info. Wait for a 3D fix (latitude/longitude shown).
From typical R4.0 content, the MT680 features:
| Parameter | Typical Value |
|-----------|----------------|
| Frequency bands | 380–430 MHz, 410–470 MHz (TETRA) |
| RF output power | 10–25 W (adjustable) |
| Channel spacing | 25 kHz |
| Operating voltage | 13.6 V DC nominal (vehicle) |
| Dimensions (approx.) | 180 × 170 × 50 mm |
| Weight | ~1.2 kg |
| Display | 2-inch monochrome or color LCD |
| Audio output | 5 W (internal speaker) |
The manual details environmental ratings (e.g., IP54 for dust/splash resistance) and operating temperature (-25°C to +55°C).
Typical R4.0 includes:
Hytera Mt680 Tetra Mobile Terminal Owners Manual R4 0 < 90% Safe >
✅ Yes: Fleets already on Tetra infrastructure, safety-critical roles, noisy environments.
❌ No: Hobbyists or small teams on analog or DMR – Tetra is overkill and requires network licensing.
The core of the manual focuses on TETRA-specific calling modes:
| Feature | Specification |
| :--- | :--- |
| Frequency Range | 380-430 MHz; 806-870 MHz (Regional variants) |
| Power Output | Adjustable: 1W to 10W (High power mode) |
| Channel Capacity | 1024 talk groups / 4000 contacts |
| Display | 2.4-inch OLED, sunlight-readable |
| GPS | Integrated 72-channel, TTFF (cold start) < 1 minute |
| Audio | 4W external speaker output, 2W internal |
| Operating Voltage | 10.8V – 15.6V DC (standard vehicle range) | Hytera Mt680 Tetra Mobile Terminal Owners Manual R4 0
The MT680 R4.0 supports multiple GPS trigger modes:
To check your GPS status: Press the programmed GPS key or navigate Menu > GPS > Satellite Info. Wait for a 3D fix (latitude/longitude shown). The MT680 R4
From typical R4.0 content, the MT680 features:
| Parameter | Typical Value |
|-----------|----------------|
| Frequency bands | 380–430 MHz, 410–470 MHz (TETRA) |
| RF output power | 10–25 W (adjustable) |
| Channel spacing | 25 kHz |
| Operating voltage | 13.6 V DC nominal (vehicle) |
| Dimensions (approx.) | 180 × 170 × 50 mm |
| Weight | ~1.2 kg |
| Display | 2-inch monochrome or color LCD |
| Audio output | 5 W (internal speaker) | To check your GPS status: Press the programmed
The manual details environmental ratings (e.g., IP54 for dust/splash resistance) and operating temperature (-25°C to +55°C).
Typical R4.0 includes:
