S1 Pro/S1 Pro LF

S series Business Two-way Radio (HYT-S35/HYT-S35 LF)

Handheld | DMR

Hytera S1 Pro/S1 Pro LF is an exquisite business-ready digital radio for luxury hotel, golf course, club, and more high-end businesses. Sleek and light, the radio strikes the perfect balance between elegance and performance, ready for you to instantly connect your team at the push of a button. Getting the best of two worlds—digital and analog, the S1 Pro/S1 Pro LF levels up your communication experience with a basket of innovative features, including noise cancellation, private call, whisper mode, and voice notification. It gives your business the competitive edge at all time.

Highlights of S1 Pro/S1 Pro LF

Classical Doric Style

Hytera draws inspiration from the design of the ancient Greek Doric order, and combines the characteristics of elegance, symmetry and scale to inject a unique artistic style into the S1 Pro/S1 Pro LF.

HD OLED Display

The HD OLED display shows you battery level, frequency, status, channel, and more. Plus, you can create your own channel and radio names that are easy to remember and distinguish.

Reliable Communication

As a digital radio, S1 Pro/S1 Pro LF is compatible with the existing radios and systems. Lower power consumption, wider communication range, more accurate data transmission.

Privacy Protected

Only those with the same password can join the group call. Protect the conversation against interference from neighboring groups.

AI-based Noise Cancellation

Filter out up to 30 dB of noise thanks to the professional AI-based noise cancellation. Your focus is protected. Your productivity improved.

Whisper Mode

Whisper on a call and still be heard clearly on the other end. Protect your privacy, without disturbing the peace of customers around you.

Outlast Your Shift

With a battery life of up to 19 hours (0.5W) or 16 hours (3W) of working time and 360 hours of standby time, your focus remains on the job, not the clock.


You can clone configuration data from one S1 Pro 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 Pro/S1 Pro LF

  • General
  • Receiver
  • Transmitter
  • Environmental
Frequency Range 400-470 MHz (Main Unit)/446 MHz
Channel Capacity 256
Zone Capacity 6 (Digital+Analog)
Channel Spacing 12.5kHz/20kHz/25kHz
Operating Voltage 3.8V(Rated)
Battery 2200mAh Li-Polymer
Battey Life(5/5/90 Duty Cycle, TX Power) Digital: 16 hrs (3W)/17 hrs (2W)/18 hrs (1W)/19 hrs (0.5W)
Frequency Stability ±0.5ppm
Antenna Impedance 50Ω
Dimensions(H×W×D) mm 108*53*20mm (Without antenna)
Weight 145g (With belt clip) ;135g (Without belt clip)
Display 1.3 inch OLED
BT BLE(only data) 5.0
Sensitivity(Analog) 0.18μV (12dB SINAD)
Sensitivity(Digital) 0.18μV
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~-3dB
Conducted Spurious Emission <-57dBm
RF Power Output 400-470MHz: 1W/2W/3W (low/medium/high)
FM Modulation 11K0F3E@12.5kHz 14K0F3E@20kHz 16K0F3E@25kHz
Conducted/Radiated Emission -36dBm<1GHz;-30dBm>1GHz
Modulation Limiting ±2.5kHz@12.5kHz ±4.0kHz@20kHz ±5.0kHz@25kHz
FM Hum&Noise 40dB@12.5kHz 43dB@20kHz 45dB@25kHz
Adjacent Channel Power 60dB@12.5kHz;70dB@20/25kHz
Audio Distortion ≤3%
Operating Temperature -10℃ ~ +55℃
Storage Temperature -30℃ ~ +70℃
ESD ±4kV (Contact) ±8kV (Air)
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