The SFE SD600 is a professional-grade, non-display dual-mode digital and analogue handheld transceiver. Built on the DMR Tier II / TDMA protocol standard, it provides a highly rugged, dependable, and affordable entry point for businesses looking to migrate their communication systems from legacy analogue channels to high-security digital networks.
| Dual-Mode Operation with Mixed Scanning | Supports both analogue and digital operation, with mixed-mode scanning that enables communication across existing analogue equipment and newer digital radio systems. |
| Dual Capacity Direct Mode (DCDM) | Uses two-slot TDMA technology to support two communication paths on a single 12.5 kHz frequency in direct mode, increasing channel capacity without requiring a repeater. |
| Advanced Digital Audio & Error Correction | Digital voice processing and error-correction technology help maintain clear, intelligible audio in noisy environments such as factories, warehouses and industrial facilities. |
| Digital Voice Encryption | Supports digital voice encryption to help protect sensitive radio communications and reduce the risk of unauthorised monitoring. |
| Remote Fleet Management | Supports Remote Monitor, Stun, Kill and Activation functions, providing administrators with greater control over lost, stolen, unreturned or compromised radios. |
| Flexible Contact Calling | Supports Individual Calls for private radio-to-radio communication, Group Calls for selected teams or departments, and All Calls for wider fleet communication. |
| Rugged & Weather-Resistant Construction | Designed for demanding working environments and built to meet MIL-STD-810G durability standards. Selected or factory-configured versions may offer protection up to IP66 against dust and powerful water jets. |
| Detailed Specifications | |
| Frequency Variations | UHF Model: 400–470 MHz VHF 136–174 MHz and 350–390 MHz variants also manufactured |
| Digital Protocol Standard | ETSI TS 102 361-1, -2, -3 (DMR Tier II compliant TDMA) |
| RF Transmit Power | Up to 5 Watts output High / Low power selectable via software |
| Channel Capacity | 32 channels across 2 zones 16 channels per zone |
| Channel Spacing | Analogue: 12.5 kHz / 20 kHz / 25 kHz Digital: 12.5 kHz |
| Battery Pack | 7.2V DC ±10% / 2000 mAh Lithium-Ion (Li-Ion) rechargeable battery |
| Battery Life (5-5-90) | Digital: Approximately 12–15 hours Analogue: Approximately 16–20 hours |
| Frequency Stability | ±2.5 ppm |
| Antenna Impedance | 50 Ω |
| Dimensions | 53 mm × 28 mm × 116 mm |
| Weight | Approximately 265g |
| Good to Know | |
| Adjustable VOX | Built-in Voice Operated Transmission (VOX) offers 10 software-selectable sensitivity levels, allowing hands-free operation to be adjusted for different working environments and background noise levels. |
| Battery & Transmission Protection | Automatic Battery Save helps reduce unnecessary power consumption during periods of inactivity, while the Time-Out Timer (TOT) limits continuous transmission if the PTT button is accidentally held down. |
