VA-6500
CF1 FAS Short Circuit Board PA System
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PA Systems — Public Address · 6500 Series (Railway)
Applied to airport PA system, the noise detection probe is used to pick up the noise in the use environment and transmit it to the noise detection card of the PA system to realize the environmental noise pickup.
Features
- Probes can be connected in series or in parallel; each channel can connect ≤16 digital probes.
- The sampling frequency period can be customized.
- Collect the ambient noise on site and process it and send the signal back to the detection controller.
- Full digital noise acquisition probe.
- Cascading function: 1 IN + 1 OUT.
- High and low pass filter frequency is adjustable.
- Long-distance transmission: a maximum of 3 kilometers.
Technical specifications
| Model | VA-6505 (NT31) |
|---|---|
| Microphone type | Condenser Microphone |
| Communication method | Single-wire bus line system |
| Noise frequency point filter | 4 bands |
| Output voltage | 1V/600Ω |
| Frequency response | 80-18KHz(+1/-3dB) |
| THD | ≤1% |
| Power consumption | 4W |
| Transmission distance | 3KM |
| Power supply | DC 24V |
| Weight | 0.9Kg |
