Specifications

General

Frequency Range
UHF: 446 MHz
Channel Capacity
48
Zone Capacity
3
Channel Spacing
25 kHz / 12.5 kHz
Operating Voltage
7.4V
Battery
1500mAh (Li-ion); 2000mAh (Li-ion)
Battery Life
Analogue: > 17 hours; digital: > 20 hours (5/5/90 duty cycle, high power)
Frequency Stability
±0.5 ppm
Antenna Impedance
50 Ω
Dimensions (H×W×D)
108 × 54.5 × 28 mm
Weight
228 g (with BL1506 and antenna)

Transmitter

RF Output Power
0.5 W
FM Modulation
11K0F3E @ 12.5 kHz
4FSK Digital Modulation
12.5 kHz data: 7K60FXD; 12.5 kHz data + voice: 7K60FXW
Spurious Emission / Radiation
< -30 dBm @ > 1 GHz; < -36 dBm @ < 1 GHz
Modulation Limit
±2.5 kHz @ 12.5 kHz
FM Hum and Noise
40 dB @ 12.5 kHz
Adjacent Channel Power
60 dB @ 12.5 kHz
Audio Distortion
≤3%
Digital Vocoder Type
AMBE+2™
Digital Protocol
ETSI-TS102 361-1,-2,-3

Receiver

Sensitivity (Analogue)
0.18μV (12 dB SINAD)
Sensitivity (Digital)
0.18μV / BER 5%
Adjacent Channel Selectivity
ETSI: 60 dB @ 12.5 kHz
Intermodulation
ETSI: 65 dB @ 12.5 kHz
Spurious Response Rejection
ETSI: 70 dB @ 12.5 kHz
Blocking
ETSI: 84 dB
Hum and Noise
40 dB @ 12.5 kHz
Audio Output Power
0.5 W
Audio Distortion
≤3%
Audio Frequency Response
+1 ~ -3 dB
Conducted Spurious Emission
< -57 dBm @ < 1 GHz; < -47 dBm @ > 1 GHz

Environmental

Operating Temperature
-30°C ~ +60°C
Storage Temperature
-40°C ~ +85°C
ESD
IEC 61000-4-2 Level 4; ±15 kV (air), ±8 kV (contact)
Dust and Water Protection
IP54
Humidity, Vibration and Drop
To MIL-STD-810G

Compare Similar Models

Only the technical values that differ between models are listed; identical rows are omitted. Values are taken from the manufacturer’s published data sheets.

Property Hytera BD505LF Licence-Free DMR Handportable Radio Hytera BD505 Professional DMR Handportable Radio Hytera BD555 Professional DMR Handportable Radio Hytera BD619 Professional DMR Handportable Radio
Frequency Range UHF: 446 MHzUHF: 350-400MHz / 400-470MHz / 410-480MHz; VHF: 136-174 MHzUHF: 400-470 MHz; VHF: 136-174 MHzUHF: 400-470 MHz; VHF: 136-174 MHz
RF Output Power 0.5 WUHF low: 1 W; UHF high: 4 W; VHF low: 1 W; VHF high: 5 WUHF low: 1 W; UHF high: 4 W; VHF low: 1 W; VHF high: 5 WUHF: 4W / 1W; VHF: 5W / 1W
Channel Capacity 484825648
Zone Capacity 33163
Battery 1500mAh (Li-ion); 2000mAh (Li-ion)Standard: 1,500 mAh (Li-ion); optional: 2,000 mAh (Li-ion)Standard: 1,500 mAh (Li-ion); optional: 2,000 mAh (Li-ion)1500mAh (Li-ion)
Battery Life Analogue: > 17 hours; digital: > 20 hours (5/5/90 duty cycle, high power)Analogue: 12 hours (1,500 mAh), 16 hours (2,000 mAh); digital: 16 hours (1,500 mAh), 22 hours (2,000 mAh) (5/5/90 duty cycle, high power)Analogue: 12 hours (1,500 mAh), 16 hours (2,000 mAh); digital: 16 hours (1,500 mAh), 22 hours (2,000 mAh) (5/5/90 duty cycle, high power)Digital: 16 hours; analogue: 12 hours (5/5/90 duty cycle, high power)
Weight 228 g (with BL1506 and antenna)236 g (with antenna and BL1506)250 g (with AN0435W09 and BL1506)240 g (with standard battery and antenna)
Dimensions (H×W×D) 108 × 54.5 × 28 mm108.6 × 54.5 × 32 mm109 × 54 × 32 mm110 × 55 × 32 mm
Operating Voltage 7.4V7.2V7.2V7.2 V (nominal)
Adjacent Channel Selectivity ETSI: 60 dB @ 12.5 kHzTIA-603: 60 dB @ 12.5 kHz / 70 dB @ 25 kHzTIA-603: 60 dB @ 12.5 kHz / 70 dB @ 25 kHzTIA-603: 60 dB @ 12.5kHz / 70 dB @ 25 kHz
Intermodulation ETSI: 65 dB @ 12.5 kHzTIA-603: 65 dB @ 12.5/25 kHzTIA-603: 65 dB @ 12.5/25 kHzTIA-603: 65 dB @ 12.5 / 25 kHz
Spurious Response Rejection ETSI: 70 dB @ 12.5 kHzTIA-603: 70 dB @ 12.5 / 25 kHzTIA-603: 70 dB @ 12.5/25 kHzTIA-603: 65 dB @ 12.5 / 25 kHz

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From the Field

Used In

Hytera BD505LF Licence-Free DMR Handportable Radio — Detail

Technical assessment

The Hytera BD505LF operates across UHF: 446 MHz.

RF output power is 0.5 W. More power is not automatically better: it extends range and shortens battery life at the same time. Teams working close to a repeater are usually served by the low setting, which also lengthens the shift.

Capacity is 48 channels across 3 zones. A zone is a page of grouped channels — separate zones are defined for different sites, different shifts or joint working with another organisation. On a multi-site system that grows, this is what lets the channel plan be extended without a rebuild.

Battery 1500mAh (Li-ion); 2000mAh (Li-ion), with a manufacturer-quoted life of Analogue: > 17 hours; digital: > 20 hours (5/5/90 duty cycle, high power). That figure is measured against the 5/5/90 duty cycle: 5% of the time transmitting, 5% receiving, 90% standby. High power, analogue mode and cold weather all shorten it.

Receiver sensitivity is 0.18μV / BER 5%. Sensitivity states how weak a signal the radio can still decode, and a lower number is better. At the edge of coverage it determines range as much as transmit power does — communication usually fails not because the other party cannot hear, but because the radio cannot decode a weak signal.

Operating temperature range is -30°C ~ +60°C.

The digital protocol is ETSI-TS102 361-1,-2,-3 — the ETSI DMR standard. Basic communication with other manufacturers’ radios is possible in standard Tier II mode; advanced trunking, vendor encryption and fleet management features do not carry across brands.

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