David Clark Airline Ground Support Headset

The H3530 is a dual-ear, over-the-head style headset designed for airline push-back applications, providing clear communication and effective hearing protection.

FEATURES
• DC-1A amplified dynamic, noise-canceling microphone
• Over-molded, non-rotating microphone boom assembly
• Dynamic earphone elements for clear reception
• Adjustable headband spring assembly for custom fit
• Pivoting stirrup assemblies for precise fit
• Foam-filled ear seals for comfort in all weather conditions
• Passive noise attenuation rating of 24 dB

BENEFITS
• Provides isolated reception and exceptional speech intelligibility
• Ensures rugged reliability in demanding environments
• Enhances comfort for long-duration use

SPECIFICATIONS
• Part number: H3530
• Country of Origin: United States
• Weight: 16.3 oz (without cord)
• Communication Cord: 30-inch straight cord with ¼-inch locking stereo plug
• Ear Impedance: 300Ω each, wired in series
• Ear Sensitivity: 90 dB SPL re 1mW @ 1kHz
• Ear Frequency Response: 200-5,500 Hz
• Microphone Impedance: 150Ω nominal
• Microphone Sensitivity: 400mV ±6dB into 150Ω load @ 1kHz for 114 dB SPL input
• Microphone Frequency Response: 150Hz – 8kHz