Acoustic Hailing Device
PROPA-250P

Acoustic Hailing Device PROPA-250P / 250PX
| PROPA-250P specifications | Catalog Download |
|---|---|
| Max. SPL | 143dB@1m Front, Peak |
| Directivity | ±15°(1kHz Sine, -3dB) |
| Frequency Response | 600Hz ~ 10kHz(-10dB) |
| Power | 12VDC /24VDC |
| Range | 500m(85dB), 1km(79dB) |
| Unit | 250W (max 300W), neodymium magnet |
| Dimensions | 250×330×280mm |
| Weight | 9.35kg |

| Basic Components |
|---|
| · Speaker Body with Audio Controller and Amp : 1ea |
| · Mic : 1ea |
| · Power Module : 1ea |
| · Power Cable and Interface Cable : each 1ea |
| · Form Type Hearing Protector : 20ea |
| · Sound Optimization Software : 1ea |
| · Carrier Case : 1ea |
| Additional Components |
|---|
| · Cradle for Tripod : 1ea |
| · Tripod for 250P : 1ea |
| · Magnetic Cradle (Magnetic Base) : 1ea |
| 상단의 내용을 확인해주세요. |
| 상단의 내용을 확인해주세요. |
| 상단의 내용을 확인해주세요. |
| 상단의 내용을 확인해주세요. |
Main Features of Acoustic Hailing Device
- Since it broadcasts with directivity and high power, it can transmit highly clear sounds to a long distant (1 ~ 3km).
- With maximum output above 143dB, it can get over the noise of the surrounding area and can provide large and clear communication and warning signals to the inside of vehicles, ships or buildings, overcoming the limitation of the existing broadcasting system (P.A. System).
- It is possible to broadcast using a sound source and a microphone.
- Since it broadcasts with directivity and high power, it can transmit highly clear sounds to a long distant (1 ~ 3km).
- With maximum output above 143dB, it can get over the noise of the surrounding area and can provide large and clear communication and warning signals to the inside of vehicles, ships or buildings, overcoming the limitation of the existing broadcasting system (P.A. System).
- It is possible to broadcast using a sound source and a microphone.

Sound Pressure Level vs Distance
– 30~50dB
Quiet library, noise in the woods, bedroom
– 50~60dB
General office noise
– 60~70dB
Noise on large ship deck
– 70~90dB
Small ship engine noise (above deck)
– 80~100dB
Noisy construction site, road noise
– 120~130dB
Jet noise (100m)
– 130dB
Above, we started to feel pain
– 160dB
Rocket firing noise
– Theoretically, We can hear sounds at 88dB at 500m, 82dB at 1km, and 68dB at 5km.
| – 30~50dB | Quiet library, noise in the woods, bedroom |
| – 50~60dB | General office noise |
| – 60~70dB | Noise on large ship deck |
| – 70~90dB | Small ship engine noise (above deck) |
| – 80~100dB | Noisy construction site, road noise |
| – 120~130dB | Jet noise (100m) |
| – 130dB | Above, we started to feel pain |
| – 160dB | Rocket firing noise |
PROPA-250P / 250PX Environmental Certifications
- Salt Fog : MIL-STD-810F, Method 509.4
- Safety Standard : MIL-STD-1474D
- EMC Standard : FCC Part 15 Class A Radiated and Conducted Emissions
- Water and Dust Protection : IP66
- Shipboard Shock : MIL-STD-910D, Class I
- Shipboard Vibration : MIL-STD-167-1A
- Random Vibration : MIL-STD 810F, Method 514.4
- Shock : MIL-STD-810F
- High Temperature Operation : MIL-STD-810F, Method 501.4
- Low Temperature Operation : MIL-STD-810F, Method 502.4
- Operating Humidity : MIL-STD-810F, Method 507.4



