BD502i DMR Two-Way Radios
BD502i Commercial UHF and VHF DMR Two-Way Digital Radios
The BD502i is one of the best-selling Hytera two-way commercial DMR radios because it is compact, rugged, easy to use, and provides reliable communications at an affordable price. The BD502i features analog and digital operation, 48 channels, loud and clear digital audio, extended talk range, audio channel announcement, and 16 hours of battery life.
Key Features
HIGH QUALITY AUDIO
Audio equalizer adjusts low, mid, and high frequency gain. Provides the best audio performance in noisy or quiet environments.
ANALOG OR DIGITAL OPERATION
The BD502i series operates in both analog or digital modes. Allows switching between the two operation modes for communication with analog radios.
RELIABLE AND DURABLE
Compliant with MIL-STD-810-G for shock and vibration. · IP54 rated for water and dust resistance.
LONG-LIFE BATTERY
Powerful 1500mAh Lithium Ion batteries deliver up to 16 hours of operation in digital mode and 12 in analog mode.
DMR
DMR signaling enables group call, private call, and all call transmitting with PTT ID. Supports DMR Tier II repeaters to extend coverage.
PSEUDO TRUNKING
This virtual trunking feature automatically uses whichever digital timeslot is free to improve call connectivity and frequency efficiency.
EMERGENCY CALLING
One-touch Emergency Alarms can be sent to other radios with the programmable button. · Improves worker safety and emergency response time.
SCANNING
Allows listening to communication activities on other channels.
VOX
Voice activated microphone enables hands free operation. Also supported on external earpiece and microphone accessories.
ANTI-INTERFERENCE
Digital encoding and error correcting reduces signal interference on the same frequency.
AUDIO CHANNEL ANNOUNCEMENT
Channel number voice announcement for fast and accurate channel switching, even in low visibility (BD502i only)
Technical Specifications
| Frequency range | UHF: 400-470 MHz VHF: 146-174 MHz |
| Channel capacity | 48 Channels (24 Analog, 24 Digital) |
| Zone capacity | 3 Zones with 16 Channels per Zone |
| Channel spacing | 25/12.5KHz |
| Operating voltage | 3.7 V |
| Battery | 1500Ah (Li-Ion) 2000Ah (Li-Ion) |
| Battery service life (5/5/90) | Analog: 12/16 hours (1500mAh) Digital:16/22 hours (2000mAh) |
| Frequency stability | ±0.5 ppm |
| Antenna impedance | 50 Ω |
| Dimensions (H×W×D) | 4.25" x 2.12" x 1.14", 108×54×29mm |
| Weight | 8 oz. (with AN0435W09 and BL1506) |
| RF Power Output | VHF High power: 5W VHF Low power: 1W UHF High power: 4W UHF Low power: 1W |
| FM Modulation | 11K0F3E @ 12.5KHz 16K0F3E @ 25KHz |
| 4FSK Digital Modulation (Digital Emissions Designator) | 12.5 kHz (data only): 7K60FXD 12.5 kHz (voice & data): 7K60FXW |
| Conducted/Radiated Emission | -36 dBm 1 GHz |
| Modulation limiting | ±2.5 kHz at 12.5 kHz ±5.0 kHz at 25 kHz |
| FM Hum & Noise | 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 | +1 ~ -3dB |
| Audio Distortion | ≤ 3% |
| Digital vocoder type | AMBE++ |
| Digital Protocol | ETSI-TS102 361-1,-2,-3 |
| Digital Sensitivity | 0.22μV / BER 5% |
| Analog Sensitivity | 0.22μV (Typical) (12dB SIN AD) 0.4μV (20dB SIN AD) |
| Adjacent channel selectivityTIA-603 | 60dB @ 12.5KHz/70dB @ 25KHz |
| IntermodulationTIA-603 | 65dB @ 12.5/25KHz |
| Spurious response rejectionTIA-603 | 70dB @ 12.5/25KHz |
| Hum & Noise | 40dB @ 12.5KHz 45dB @ 25KHz |
| Rated Audio Power Output | 0.5W |
| Rated Audio Distortion | ≤3% |
| Audio Response | +1 ~ -3dB |
| Conducted spurious emission | < -57 dBm |
| Operating temperature | -30 °C to +60 °C |
| Storage temperature | -40 °C to +85 °C |
| ESD | IEC 61000-4-2 (level 4) ±8 kV (contact ) ±15 kV (air) |
| Dustproof & Waterproof | IP54 Standard |
| Humidity | Per MIL-STD-810 C/D/E/F/G Standard |
| Shock & Vibration | Per MIL-STD-810 C/D/E/F/G Standard |
