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Specifications
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Accessories

ANALOG & DIGITAL DUAL MODES

BD502i/BD552i can support both analog and digital modes on the same hardware. You can easily switch between two operation modes and it helps you to communicate with analog radios.
Antenna

Enhance signal receiving ability.
Channel knob

Supports 16 channels to be changed very easily.
CLEAR VOICE

With digital encoding and correction technology, human voice is transmitted much clearer without background noise, even from great distances.This is the next generation audio quality experience.
LED indicator

Show the radio receiving and transmitting status as green light and red light.
LONG WORKING TIME

Based on TDMA technology, BD502i in digital mode can work as long as 16 hours @ 1500mAh or 22 hours @2000mAh in 5-5-90 mode.
RUGGED AND RELIABLE

BD502i/BD552i is designed and tested to meet Military Standards 810 C, D, E, F and G, including temperature shock, vibration, high & low temperature and humidity. IP54 dust- and water-proof design guarantees the reliability in different environments. And based on TDMA technology, the radio can work longer, up to 22 hours in digital mode.
Speaker and Microphone

Provide clear receive and transmit audio.

Performance Characteristics

Environmental Specs

Operating temperature:-30 °C to +60 °C

Storage temperature: -40 °C to +85 °CLEDIEC 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

General Data

Frequency range:UHF: 400-470 MHz VHF: 146-174 MHz

Channel capacity:48

Zone capacity: 3

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)

Display: BD502i has no display, BD552i has single line display

Receiver

Sensitivity (Digital):0.22μV / BER 5%

Sensitivity (digital): 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 rejection TIA-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

Transmitter

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 -30 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++