Hytera BD305 Licence-Free Radio

Frequency range

446 MHz

Supported operating modes

• DMR Tier I (license-free DMR)
  ETSI TS 102 361-1/2/3

• Analog PMR446

Number of channels

48

Number of zones

3

Channel spacing

12.5 kHz

Battery service life (5/5/90 duty cycle)

approx. 16 hours (digital)
approx. 12 hours (analog)

Standard battery

2200 mAh (lithium-ion battery)

Frequency stability

±0.5 ppm

Antenna impedance

50 Ω

Dimensions (H×B×T)

101 × 49 × 26 mm

Weight (with antenna and standard battery)

approx. 140 g 

Operating temperature range

-30 °C ~ +60 °C

Storage temperature range

-40 °C ~ +85 °C

Electrostatic discharge (ESD)

IEC 61000-4-2 (Level 4)
±8 kV (contact)
±15 kV(air)

Protection against dust and moisture

IP54

Shock and vibration resistance

MIL-STD-810 G standard

Relative humidity

MIL-STD-810 G standard

Transmitting power

0.5 W

Modulation

11K0F3E at 12.5 kHz
16K0F3E at 25 kHz

4FSK digital modulation

12.5 kHz (data only): 7K60FXD
12.5 kHz (data and voice): 7K60FXW

Interfering signals and harmonics

-36 dBm (<1GHz)
-30 dBm (>1 GHz)

Modulation limiting

± 2.5 kHz at 12.5 kHz
±5.0 kHz at 25 kHz

Noise cancellation

40 dB at 12.5 kHz 

45 dB at 25 kHz

Adjacent channel selectivity

60 dB at 12.5 kHz
70 dB at 25 kHz

Audio response (TIA-603D)

+1 ~ -3dB

Audio distortion

≤ 5%

Digital vocoder type

AMBE+2™

Digital protocol

ETSI-TS102 361-1,2,3

Sensitivity (analog)

0.22 µV (typical) (12 dB SINAD)
0.4 µV (20 dB SINAD)

Sensitivity (digital)

0.22 µV / BER 5%

Adjacent channel selectivity (ETSI)

65 dB at 12.5 kHz

lntermodulation

60 dB at 12.5 kHz

Spurious response rejection (ETSI)

65 dB at 12.5 kHz

Signal-noise ratio (S/N)

40 dB at 12.5 kHz
45 dB at 25 kHz

Nominal audio power output

0.5 W

Audio distortion

≤5%

Audio Response (TIA-603D)

+1 dB to -3 dB

Conducted spurious emission

< -57 dBm