Dimensions
Size comparison
CDM-550HDB40-D
| CDM-550H | DB40-D | Difference | |
|---|---|---|---|
| Height | 175 mm | 160 mm | +15 mm |
| Width | 140 mm | 137 mm | +3 mm |
| Depth | 46 mm | 41 mm | +5 mm |
| Weight | 1,500 g | 907 g | +593 g |
Drawn to the same scale from the official dimensions (front and side).
Why is CDM-550H better than DB40-D?
CDM-550H has no measurable advantages in this pair.
Why is DB40-D better than CDM-550H?
- Weight1,500 g vs 907 g+65%
Specifications
Side by side
| Radio & range | ||
| Radio standards | UHF, DMR | VHF, UHF, DMR |
| Licence | Amateur licence | Amateur licence |
| Digital mode (DMR / dPMR) | Yes | Yes |
| Dual band (VHF + UHF) | — | Yes |
| Frequency ranges | 400–480 MHz | 136–174 MHz, 400–480 MHz |
| Transmit power | 40 W | 40 W |
| Channels | — | 4,000 |
| CTCSS / DCS sub-tones | Yes | Yes |
| Power & battery | ||
| USB-C charging | — | Yes |
| Design & durability | ||
| Weight | 1,500 g | 907 g |
| Width | 140 mm | 137 mm |
| Height | 175 mm | 160 mm |
| Depth | 46 mm | 41 mm |
| Display | Colour display | Colour display |
| Features | ||
| VOX (hands-free) | — | Yes |
| Channel scan | Yes | Yes |
| Dual watch | — | Yes |
| Emergency / SOS alarm | Yes | Yes |
| FM radio | Yes | — |
| Monitor button | Yes | — |
| Voice encryption / scrambler | Yes | — |
| GPS | — | Yes |
| PC programmable | Yes | Yes |
| Connectivity | ||
| Bluetooth | — | Yes |
