Why is Space-U better than TD-638?
- Transmit power17 W vs 10 W+70%
- DisplayBacklit display vs Monochrome display
Why is TD-638 better than Space-U?
TD-638 has no measurable advantages in this pair.
Specifications
Side by side
| Radio & range | ||
| Radio standards | Amateur UHF | VHF, UHF |
| Licence | Amateur licence | Amateur licence |
| Dual band (VHF + UHF) | — | Yes |
| Frequency ranges | 400 - 470 MHz | 136–174 MHz, 220–259 MHz, 300–390 MHz, 400–590 MHz |
| Transmit power | 17 W | 10 W |
| Channels | 199 | — |
| Privacy codes (CTCSS / DCS) | 1,076 | — |
| CTCSS / DCS sub-tones | Yes | — |
| Squelch | adjustable | — |
| Power & battery | ||
| Battery capacity | — | 2,500 mAh |
| Power source | Car socket | — |
| USB-C charging | No | — |
| Design & durability | ||
| Weight | 434 g | — |
| Width | 105 mm | — |
| Height | 105 mm | — |
| Depth | 25 mm | — |
| Protection rating | — | IP67 |
| Water protection (IPx) | — | IPx7 |
| Display | Backlit display | Monochrome display |
| Colours | Black | — |
| Features | ||
| Channel scan | Yes | Yes |
| Weather channels / alerts | — | Yes |
| FM radio | — | Yes |
| Key lock | Yes | — |
| Voice encryption / scrambler | — | Yes |
| GPS | — | Yes |
| Connectivity | ||
| Headset / earpiece jack | Yes | — |
| Connectors | 3,5mm Klinke | — |
| Bluetooth | — | Yes |
