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Model Number: SG-303-2
Brand Name: SAFE GUARD
Key Specifications/Special Features:
Quick details:Place of origin: Guangdong China (Mainland)Brand name: Safe GuardModel number: SG-303Interface: TTL/RS-232/RS-485
Work mode: full-duplex
Power supply: DC 12-14V
Modulation: FSK/MSK
Extra function: PTZ control
Warranty: 1 year
Special features:
- Design based on the special use of the wireless voice transmission in the industrial automation field
- Full-duplex work mode
- High stability, good reliability and low power consumption
- Standard connection: RS-232/RS-485/TTL
- Facility for installation and maintenance, flexible networking configuration, suitable for the field of multiple point but decentralization and complex geography environment
- Metal shell, good shielding performance, providing frequency passage
- Providing many MODEM communication protocols
- To adopt different user structure, we can develop various size modules and offer sufficient technology support for client use the module and second development for free
- Double phase-lock loop, double VCO structure, high stability
- Providing many MODEM communication protocols
| Transmitter system indicators: | |||||||
| Frequency range | 400-470MHz | ||||||
| RF power | 5W | ||||||
| Voltage | DC 12V | ||||||
| Current | ≤1.5A | ||||||
| Rate | 1200/2400/4800/9600bps | ||||||
| Interface | RS-232 | ||||||
| Frequency deviation | ≥ 5.0kHz | ||||||
| Adjacent channel power | ≥70dB | ||||||
| Modulation | FSK/MSK | ||||||
| Frequency stability | ±2.5ppm | ||||||
| Channel spacing | 25kHz | ||||||
| Transmission distance | 3-8km | ||||||
| Temperatures | -30-70°C | ||||||
| Size | 85x58x16mm | ||||||
| Weight | 500g | ||||||
| Receiver system indicators: | |||||||
| Frequency range | 400-470MHz | ||||||
| Receiving sensibility | ≤-119dBm (more than 12dB SINAD) | ||||||
| Adjacent channel selectivity | ≥65dB | ||||||
| Intermodulation rejection | ≥65dB | ||||||
| Clutter and images rejection | Clutter and images rejection | ||||||
| Packaging details: | |||||||
| Accessories | 1*5.5dBi antenna (about 700mm) 1*connection line |
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| Style | Color gift box or paper carton | ||||||
| Size (only for reference) | 850*137*65mm | ||||||
| Overall weight | 1.8kg | ||||||
| Connection definition with terminal: | |||||||
| Pin No. | Signal Name | Definition | Description | Remarks | |||
| Power | 1 | VCC | DC 12V±10% | Maximum transmission current: 2A | |||
| 2 | GND | Grounding of power supply | |||||
| Signal base | 1 | GND | Grounding of power signal | ||||
| 2 | DATA RX | Data receiving | TTL RX/RS232 RX/RS485－A | Choose one | |||
| 3 | DATA TX | Data transmitting | TTL TX/RS232 TX/RS485－B | ||||
| 4 | PTT | Transmission control | For external control | ||||
| 5 | AFOUT | Audio output | Audio | ||||
| 6 | SQ | Carrier detect | TTL | ||||
| 7 | NC | For expanding | |||||
| 8 | NC | For expanding | |||||
Shipping Information:
- FOB Port: Shenzhen
- Lead Time: 3 - 5 days
Main Export Markets:
- Asia
- Australasia
- Central/South America
- Eastern Europe
- Mid East/Africa
- North America
- Western Europe