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Explosion-proof VHF Radio Station Chiyang CY-VH03

Chiyang CY-VH03's Radio station intrinsically safe design It is designed to provide reliable two-way telephone communication in GMDSS systems. The device meets strict safety requirements, including explosion protection, and is certified according to ATEX and TR CU standards. The CY-VH03 is ideally suited for use in high-risk areas such as explosive atmospheres (Zones 1 and 2).

Key Features:

  • Compliance with IMO resolutions MSC. 338 (91), MSC. 149 (77) and IEC 60945-2002.
  • Explosion protection class Ex IB IIB T4 Gb, which ensures safety when working in difficult conditions.
  • Ergonomic design for convenient one-handed operation.
  • Case protection against moisture and vibration according to the standard IP67.
  • Simple and intuitive menu.

Technical characteristics of the CY-VH03 radio station

Parameter Meaning
Frequency Range (Receive/RX mode) 156.050-163.275 MHz
Frequency range (Transmission mode/TX) 156.025 — 157.425 МГц
Frequency step 25 kHz
Frequency stabilization ± 5 ppm MHz
Radiation class G3E
Antenna impedance 50 ohms
Supply voltage 7.4 V (DC)
Current consumption (Receive/RX mode) 320 mA
Current consumption (Transmission mode/TX) 1 A at 3.2 W / 0.6 A at 1.0 W
Current consumption (standby mode) 50 mA
Operating temperature range -20°C to +60°C
Radio station weight 280 g
Dimensions without antenna (mm) 56 x 133 x 27.5
Case protection IP67
Explosion protection Ex IB IIB T4 Gb
Opening hours Up to 8 hours
Battery (operational) Lithium battery, 7.4 V, 1800 mAh

Transmitter:

Parameter Meaning
Output power 3.2 W or 1.0 W
Type of modulation variable, reactive
Maximum frequency deviation ± 5 kHz
Adjacent channel power > 75 dB
Microphone impedance 2kOhm

The receiver:

Parameter Meaning
Adjacent channel selectivity 70 dB
Intermodulation, typical 68 dB
Signal-to-noise ratio 40 dB
Sensitivity 0.18 mv at 12 dB
Selectivity (25 kHz) less than 70 dB
Audio output to the internal speaker less than 700 MW

Equipment:

  1. Radio station CY-VH03.
  2. SMA-160 antenna.
  3. Operational battery CY-LB03.
  4. Emergency battery CY-LB01A.
  5. Charger CY-LB03CA.
  6. Power adapter CY-LB03CB1.
  7. Wrist strap.
  8. Clip for attaching to the belt.
  9. Bracket for wall mounting.
  10. User manual.
  11. RMRS certificate.

Additional recommendations:

  • Use only original headsets (CY-HS1516, CY-HS1517, CY-HS1518, CY-HS1519).
  • It is forbidden to replace the battery in an explosive zone.
  • Store batteries at temperatures between -40°C and +60°C.
  • Do not turn on the device without an antenna.

Advantages:
The Chiyang CY-VH03 radio provides reliable communication and a high degree of security, making it an ideal choice for marine vessels and explosive sites.

Instruction manual

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