Acoustic Hailing Device

PROPA-250P

Acoustic Hailing Device PROPA-250P / 250PX

  • Superior Voice Intelligibility and Highly clear communication up to 1km

  • High output of 143dB, 1km broadcasting distance(82dB)

  • Bluetooth 3.0 support (connected to smartphone)

  • External USB memory available

  • MP3 file playback, microphone broadcast

  • Maximum output limit available

  • Integrated amplifier

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
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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.

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.

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