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Highlights of S1/S1 LF
PTT Unlike Any Other
Another PTT in the front—enlarged size, circle shape, and phonograph-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 (0.5W) or 15 hours (3W) of working time and
360 hours of standby time, your focus remains on the job, not the clock.
Channel Copy
Quickly communicate with your existing radios, 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 a phone, at your fingertips. Perform BT-enabled programming,
batch configuration, frequency information backup, and then some.
Specifications of S1/S1 LF
| General | |
|---|---|
| Model | HYT-S31/HYT-S31 LF |
| Frequency Range | 400-470 MHz (Main Unit) /446 MHz |
| Channel Capacity | 48 |
| Zone Capacity | 3 |
| Channel Spacing | 12.5kHz/20kHz/25kHz |
| Operating Voltage | 3.8V (Rated) |
| Battery | 2200mAh Li-Polymer |
| Battery Life (5/5/90 Duty Cycle, TX Power) | 15 hrs (3W) /22 hrs (1W) /27 hrs (0.5W) |
| Frequency Stability | ±2ppm |
| Antenna Impedance | 50 Ω |
| Dimensions (HxWxD) | 108*53*20mm (Without antenna) |
| Weight (With battery and antenna) | 145 g (With belt clip） 135 g (Without belt clip) |
| BT | BLE (only data) 5.0 |
| Receiver | |
|---|---|
| Sensitivity | 0.14μV |
| Adjacent Channel Selectivity | ETSI: 60dB@12.5kHz / 70dB@20/25kHz |
| Intermodulation | ETSI: 65dB@12.5/20/25kHz |
| Spurious Response Rejection | ETSI: 70dB@12.5/20/25kHz |
| Blocking | ETSI：84dB |
| Hum&Noise | 40dB@12.5kHz； 43dB@20kHz； 45dB@25kHz |
| Rated Audio Power Output | 0.5W |
| Rated Audio Distortion | ≤5% |
| Audio Response | +1~-3 dB |
| Conducted Spurious Emission | <-57 dBm |
| Transmitter | |
|---|---|
| Power Output | 400-470 MHz: 1W / 3W (low/high) 446 MHz: 0.5W |
| FM Modulation | 11K0F3E@12.5kHz 14K0F3E@20kHz 16K0F3E@25kHz |
| Conducted/Radiated Emission | -36dBm＜1GHz -30dBm＞1GHz |
| Modulation Limiting | ±2.5 kHz@12.5 kHz; ±4.0 kHz@20 kHz; ±5.0 kHz@25 kHz |
| FM Hum&Noise | 40 dB@12.5 kHz; 43 dB@20 kHz; 45 dB@25 kHz |
| Adjacent Channel Power | 60 dB@12.5 kHz; 70 dB@20/25 kHz |
| Audio Distortion | ≤3% |
| Environment | |
|---|---|
| Operating Temperature | -10℃ ~ +55℃ |
| Storage Temperature | -30℃ ~ +70℃ |
| ESD | ±4kV (Contact) ±8kV (Air) |