Key Features
PTT Unlike Any Other
A second PTT on the front – increased size, circular shape and record-like texture.
Airy-light Design
135 g in weight. All for one-hand operation on the go.
Light for U
Four LEDs tell you the radio status in their own way.
Dual PTT
Talk with either of two standby groups – not just one as before.
Talk Freely
Cover 3-5 floors and 3-5 km in urban areas; meet the indoor communication needs of more than 10,000 square meters.
Outlast Your Shift
With a battery life of up to 27 hours (0.5 W) or 15 hours (3 W) of working time and 360 hours of standby time, your focus remains on the job, not the clock.
Channel Copy
Allows you to quickly copy channel information to the S1 from any radio with the same frequency regardless of brands and models.
AirClone
You can clone configuration data from one S1 to many. All done in a flash.
Hytera Radio APP
Manage your radio with an Android phone that’s always at your fingertips. Programming, batch configuration, backing up frequency information, and more can be performed via Bluetooth.
| General | |
|---|---|
| Model | HYT-S31 (licensed) HYT-S31 LF (PMR446 license free) |
| Frequency Range | UHF: 400-470 MHz PMR446: 446 MHz |
| Operating modes | Analogue |
| Channels & zones | Channel capacity: 48 Zone capacity: 3 Channels per zone: 16 |
| Channel Spacing | 12.5kHz / 20kHz / 25kHz |
| Operating Voltage | 3.8 V (rated) |
| Battery | 2200mAh Li-Polymer |
| Battery Life (5/5/90 Duty Cycle, TX Power) | 15 hrs (Tx power 3W) 22 hrs (Tx power 1W) 27 hrs (Tx power 0.5W) |
| Frequency Stability | ±2ppm |
| Antenna Impedance | 50 Ω |
| Dimensions (HxWxD) | 108 x 53 x 20 mm (without antenna) |
| Weight (with battery and antenna) | 145 g (with belt clip） 135 g (without belt clip) |
| Bluetooth | BT 5.0 BLE (only data) |
| Receiver | |
|---|---|
| Conducted Spurious Emission | <-57 dBm |
| Audio Response | +1~-3 dB |
| Rated Audio Distortion | ≤5% |
| Sensitivity(Analog) | 0.14 μV (12 dB SINAD) |
| Adjacent Channel Selectivity | ETSI: 60 dB @12.5kHz / 70 dB @20/25kHz |
| Intermodulation | ETSI: 65 dB @12.5/20/25kHz |
| Spurious Response Rejection | ETSI: 70 dB @12.5/20/25kHz |
| Blocking | ETSI：84dB |
| Hum&Noise | 40 dB @12.5 kHz 43 dB @20 kHz 45 dB @25 kHz |
| Rated Audio Power Output | 0.5W |
| Transmitter | |
|---|---|
| Audio Distortion | ≤3% |
| Adjacent Channel Power | 60 dB @12.5 kHz 70 dB @20/25 kHz |
| FM Hum&Noise | 40 dB@12.5 kHz; 43 dB@20 kHz; 45 dB@25 kHz |
| Modulation Limiting | ±2.5 kHz@12.5 kHz; ±4.0 kHz@20 kHz; ±5.0 kHz@25 kHz |
| Conducted/Radiated Emission | -36 dBm＜1 GHz -30 dBm＞1 GHz |
| FM Modulation | 11K0F3E @12.5 kHz 14K0F3E @20 kHz 16K0F3E @25 kHz |
| Power Output | 1W / 3W (400-470 MHz) 0.5 W (446MHz) |
| Audio Response | +1 ~ -3 dB |
| Environment | |
|---|---|
| Storage Temperature | -30°C to +70°C |
| ESD | ±4kV (Contact) ±8kV (Air) |
| Operating Temperature | -10°C to +55°C |
