Specifications of S1
- General
- Receiver
- Transmitter
- Environment
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 |
* Product images, specifications, features, and accessories shown on this page are
subject to change due to ongoing technology upgrades and production improvements.
To ensure you receive the correct product and compatible accessories, please contact
the Hytera sales team for the latest information before placing an order. Hytera reserves
the right to modify product details without prior notice.