Why is HD-1 better than RB648?
- Battery capacity2,400 mAh vs 2,000 mAh+20%
Why is RB648 better than HD-1?
RB648 has no measurable advantages in this pair.
Specifications
Side by side
| Radio & range | ||
| Radio standards | PMR446 | PMR446 |
| Licence | Licence-free | Licence-free |
| Digital mode (DMR / dPMR) | No | No |
| Frequency ranges | 446 MHz | 446 MHz |
| Transmit power | 0.5 W | 0.5 W |
| Channels | 16 | 16 |
| Maximum range (claimed) | — | 2 km |
| CTCSS / DCS sub-tones | Yes | — |
| Squelch | adjustable | — |
| Power & battery | ||
| Battery capacity | 2,400 mAh | 2,000 mAh |
| Battery voltage | — | 3.7 V |
| Power source | Rechargeable pack | Rechargeable pack |
| USB-C charging | Yes | Yes |
| Battery level indicator | Yes | Yes |
| Design & durability | ||
| Weight | 210 g | — |
| Width | 62 mm | — |
| Height | 29 mm | — |
| Depth | 180 mm | — |
| Protection rating | IP67 | IP67 |
| Water protection (IPx) | IPx7 | IPx7 |
| Shockproof | — | Yes |
| Display | Backlit display | Backlit display |
| Colours | Yellow | — |
| Features | ||
| VOX (hands-free) | Yes | Yes |
| Channel scan | Yes | — |
| Emergency / SOS alarm | Yes | — |
| Key lock | Yes | Yes |
| Roger beep | Yes | — |
| Monitor button | Yes | — |
| Connectivity | ||
| Headset / earpiece jack | Yes | Yes |
| Connectors | 2,5 und 3,5 mm, USB-C | USB-C, Kopfhörer |
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