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:
- Radio station CY-VH03.
- SMA-160 antenna.
- Operational battery CY-LB03.
- Emergency battery CY-LB01A.
- Charger CY-LB03CA.
- Power adapter CY-LB03CB1.
- Wrist strap.
- Clip for attaching to the belt.
- Bracket for wall mounting.
- User manual.
- 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.










