A new model Amateur Radio Retevis RT3S will be released soon. It has a little similar with the Model RT3, so here I will compare two models.
Retevis RT3S VS RT3
| Model | RT3 | RT3S |
| Picture |  | |
| Mode | Digital+Analog | Digital+Analog |
| Frenquency Range | Single Band UHF400-480MHz | Dual Band VHF136-174MHz UHF400-480MHz |
| Memory Channel | 1000 Channels | 3000 Channels |
| power | High≤5W Low≤1W | High≤5W Low≤1W |
| Battery Capacity | Li-ion 7.4V/2000mAh | Li-ion 7.4V/2000mAh |
| GPS | Optional | Optional |
| Firmware | Upgradeable | Upgradeable |
| Record Function | No | 8hours of recording |
From above, we know the Retevis RT3S is a dual band,Up to 3000 channels DMR Amateur Radio. Also it can be used for dual wait, dual stand-by.
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whene i uppdate on rt3s the firmware so the radio want password
is nott on is still want password so i need help watt i do