Why is RT-4D better than A3?
- Battery capacity3,500 mAh vs 2,500 mAh+40%
- Channels1,024 vs 999+3%
Why is A3 better than RT-4D?
- DisplayMonochrome display vs Backlit display
Specifications
Side by side
| Radio & range | ||
| Radio standards | VHF, UHF, DMR | Amateur |
| Licence | Amateur licence | Amateur licence |
| Digital mode (DMR / dPMR) | Yes | — |
| Dual band (VHF + UHF) | Yes | — |
| Frequency ranges | 108–136 MHz, 136–520 MHz, 136–174 MHz, 400–470 MHz | 0.5 - 1160 MHz |
| Transmit power | 5 W | — |
| Channels | 1,024 | 999 |
| Squelch | adjustable | — |
| Power & battery | ||
| Battery capacity | 3,500 mAh | 2,500 mAh |
| Battery voltage | 7.4 V | 7.4 V |
| Power source | Rechargeable pack | Rechargeable pack |
| USB-C charging | Yes | Yes |
| Standby time | — | 119 h |
| Battery level indicator | Yes | Yes |
| Design & durability | ||
| Weight | 198 g | — |
| Width | 112 mm | — |
| Height | 61 mm | — |
| Depth | 38 mm | — |
| Water protection (IPx) | IPx7 | — |
| Shockproof | — | Yes |
| Display | Monochrome display | Backlit display |
| Colours | Black | Green |
| Features | ||
| VOX (hands-free) | — | Yes |
| Flashlight | — | Yes |
| Emergency / SOS alarm | — | Yes |
| Weather channels / alerts | Yes | — |
| FM radio | Yes | — |
| Key lock | Yes | — |
| Voice encryption / scrambler | Yes | — |
| PC programmable | Yes | — |
| Connectivity | ||
| Headset / earpiece jack | Yes | — |
| Connectors | USB-C, 3,5mm Klinke | USB-C |
| Radios in the base pack | 1 | — |
