Hytera BD355 is a professional digital radio with analog mode support. The signal type is recognized automatically. The device operates in UHF 400-470 MHz. The presence of 256 channels provides communication with a large number of employees. The output power of the BD355 radio is 1 to 2 watts. A full charge of the 2200 mAh battery is enough to operate the radio for more than 12 hours.

Characteristics

UHF frequency range, MHz: 400-470;
Number of channels: 256;
Number of zones: 3;
Frequency step, kHz: 12.5/25;
Frequency stability: ±0.5ppm;
Power supply, V: 3.8;
Battery, mAh (Li-ion): 2200;
Time in digital mode (cycle 5-5-90, maximum power): At least 16 hours;
Operating time in analog mode (cycle 5-5-90, maximum power): At least 12 hours;
Operating temperature, °C: -30 to +60;
Dimensions (H×W×D), mm: 101×49×25.8;
Weight, g: 140

Receiver

Analog mode sensitivity: 0.22µV (12dB SINAD);
Digital mode sensitivity: 0.22µV (BER 5%);
TIA-603 Adjacent Channel Selectivity: 60 dB @ 12.5 kHz; 70 dB at 25 kHz;
ETSI Adjacent Channel Selectivity: 60 dB @ 12.5 kHz; 70 dB at 25 kHz;
Intermodulation selectivity TIA-603: 70 dB at 12.5/25 kHz;
Intermodulation selectivity ETSI: 70 dB at 12.5/25 kHz;
Rated audio output power, W: 0.5;
Audio non-linear distortion: < 5%;

Transmitter

Output power high/low UHF, W: 2/1;
FM modulation: 11K0F3E at 12.5 kHz; 16K0F3E at 25 kHz;
4FSK modulation - data only: 7K60FXD;
4FSK modulation - data and voice: 7K60FXW;
Conducted emission: -36 dBm < 1 GHz; -30 dBm > 1 GHz;
Hum and noise: 40 dB at 12.5 kHz; 45 dB at 25 kHz;
Nonlinear distortion factor: < 5%;
Digital vocoder: AMBE++;
Digital protocol: ETSI-TS102 361-1, -2, -3

Radio specifications
Basic technical characteristics	Frequency range UHF, MHz: 400-470; Number of channels: 256; Number of zones: 3; Frequency grid step, kHz: 12.5/25; Frequency stability: ±0.5ppm; Supply voltage, V: 3.8; Battery, mAh (Li-ion): 2200; Operating time in digital mode (cycle 5-5-90, maximum power): Not less than 16 hours; Operating time in analog mode (cycle 5-5-90, maximum power): Not less than 12 hours; Operating temperature, °C: From -30 to +60; Dimensions (H×W×D), mm: 101×49×25.8; Weight, g: 140
Receiver	Sensitivity in analog mode: 0.22 μV (12 dB SINAD); Sensitivity in digital mode: 0.22 μV (BER 5%); Adjacent Channel Selectivity TIA-603: 60 dB @ 12.5 kHz; 70 dB at 25 kHz; ETSI Adjacent Channel Selectivity: 60 dB @ 12.5 kHz; 70 dB at 25 kHz; Intermodulation selectivity TIA-603: 70 dB at 12.5/25 kHz; Intermodulation selectivity ETSI: 70 dB at 12.5/25 kHz; Rated output power of an audio signal, W: 0.5; Audio non-linear distortion: < 5%;
Transmitter	Output power high/low UHF, W: 2/1; FM modulation: 11K0F3E at 12.5 kHz; 16K0F3E at 25 kHz; 4FSK modulation - data only: 7K60FXD; 4FSK modulation - data and voice: 7K60FXW; Conducted emission: -36 dBm < 1 GHz; -30 dBm > 1 GHz; Hum and noise: 40 dB at 12.5 kHz; 45 dB at 25 kHz; THD: < 5%; Digital Vocoder: AMBE++; Digital protocol: ETSI-TS102 361-1, -2, -3
Operating conditions	Dust and moisture protection: SGS IP68; Drop resistance: 1.5 m; Waterproof: 1.2 m (30 min); Protection against various external influences: MIL-STD-810G; Operating temperature: -30C - +60C;