Hytera BD502i UHF DMR Digital Portable Two-Way Radio (UHF 400–470 MHz)
The BD502i UHF is a commercial DMR portable radio for indoor operations — warehouses, hospitals, hotels, retail facilities, and schools where UHF at 400–470 MHz penetrates concrete walls, metal shelving, and multi-floor building structures. At 4 watts with 48 channels and 16 hours of digital battery life, it handles full-shift indoor operations without mid-day charging or compromising coverage.
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Why Professionals Choose the Hytera BD502i UHF
The BD502i UHF covers indoor multi-floor operations where range and reliability matter more than price. At 4 watts across 400–470 MHz, it penetrates the structural materials that reduce signal in large indoor facilities — concrete floors, metal racking, elevator shafts, HVAC enclosures. Warehouse supervisors coordinating loading docks, hospital staff moving between departments, hotel teams connecting front desk to housekeeping to maintenance, school security teams covering building-to-building coverage: all need a radio that works through the building, not just in open corridors. The BD502i handles this without a repeater on smaller sites, and integrates into DMR Tier II repeater systems when the footprint grows.
The 48-channel, 3-zone layout separates departments cleanly — one zone for operations, one for management, one for emergency coordination — without requiring separate radios per group. The dual analog/digital mode means the BD502i communicates with existing analog fleets during migration without replacing hardware all at once.
Confirmed on the official Hytera US website (hytera.us), the BD502i includes a programmable audio equalizer that adjusts low, mid, and high frequency gain across channels. In indoor environments with background machinery, ventilation noise, or kitchen equipment, the equalizer is configured per site to cut interference frequencies and prioritize voice clarity — a professional feature absent from most entry-level commercial radios in this price segment.
Specification
General
| Frequency Range | UHF 400–470 MHz |
| Channel Capacity | 48 Channels (24 Analog, 24 Digital) |
| Zone Capacity | 3 Zones, 16 Channels per Zone |
| Channel Spacing | 25 / 12.5 kHz |
| Operating Voltage | 3.8V DC |
| Battery (standard) | 1500mAh Li-ion (BL1506) |
| Battery (optional) | 2000mAh Li-ion (BL2018) |
| Battery Life — digital (5-5-90) | 16h (1500mAh) / 22h (2000mAh) |
| Battery Life — analog (5-5-90): | 12h (1500mAh) |
| Operating Temperature | -30°C to +60°C (-22°F to +140°F) |
| Antenna Impedance | 50 Ω |
| Dimensions (H×W×D) | ~102 × 50 × 27 mm (4.0" × 2.0" × 1.1") |
| Weight (with BL1506 + antenna) | ~155g (5.5 oz) |
Transmitter
| RF Power Output | 4W (High), 1W (Low) |
| Digital Modulation | 4FSK |
| Analog Modulation | 11K0F3E @ 12.5 kHz / 16K0F3E @ 25 kHz |
Receiver
| Digital Sensitivity (5% BER) | 0.22 µV (typical) |
| Analog Sensitivity (12 dB SINAD) | 0.22 µV (typical) |
Compliance
| FCC Part 90 | Certified |
| IP54 | Confirmed — hytera.us (Tier 1) |
| MIL-STD-810 C/D/E/F/G | Compliant — shock, vibration, temperature, humidity |
FCC Licensing and Compliance Support
Operation of the Hytera BD502i UHF on licensed frequencies in the United States requires an FCC Part 90 license. This applies to commercial and business radio use across warehouses, hospitals, hotels, schools, and retail facilities on private licensed UHF frequencies in the 400–470 MHz band.
As an authorized Hytera dealer, AXDIGITAL assists customers throughout the licensing process — from selecting UHF frequencies compatible with your existing systems to preparing and submitting the FCC Part 90 application. UHF is the standard frequency band for indoor multi-floor facilities. For organizations deploying across multiple buildings or departments, we provide frequency coordination guidance to prevent channel interference.
The BD502i UHF is FCC Part 90 certified and complies with DMR digital and analog modulation standards. For facilities expanding an existing analog fleet with new digital hardware, we advise on channel planning to keep both technologies operational during migration.
Contact us to discuss licensing requirements for your organization.
FAQ
What is the indoor range of the BD502i UHF?
At 4W UHF across 400–470 MHz, the BD502i covers approximately 300,000 sq ft indoors under typical conditions — larger buildings or complex floor plans may require a DMR Tier II repeater. UHF penetrates concrete and metal structures more effectively than VHF, making it the standard band for multi-floor facilities. Contact our team for a site-specific estimate before ordering.
Will the BD502i UHF work with existing analog radios?
Yes. The BD502i operates in both analog and digital modes on the same hardware. Program it to your existing analog UHF frequencies and CTCSS/DCS codes, and it communicates with your current fleet automatically. This allows gradual migration to digital — you can deploy BD502i units alongside older analog radios without running two separate systems or replacing hardware all at once.
What is the difference between the BD502i and BD552i UHF?
Both are UHF DMR radios in the same BD series. The BD502i has no display and 48 channels — suited for workers with fixed channel assignments who need simplicity. The BD552i adds a single-line OLED display, 256 channels, and optional Bluetooth — suited for users who need to see channel status or manage more complex channel plans. The BD502i costs less and weighs less; the BD552i adds operational flexibility.
