Tag: pa system

Large-Scale Outdoor Sound Masking / Sonic Net Airport Bird Deterrent

Technomad supplies fully weatherproof, high powered outdoor sound systems for sound masking, environmental sound simulation, and to repel birds from airport and farm environments.

A recent article in The Economist describes the use of a sonic net to repel birds from airports. This reduces the chance of a bird hitting an aircraft – known as ‘bird-strike’ in the aviation industry – and the associated risk to passengers and equipment.


The scientific journal Ecological Applications describes the use of  Technomad Berlin outdoor loudspeakers and waterproof PowerChiton amplifiers to create a Sonic Net – an area of background noise that repels birds.

The systems deliver 80 dB of broad-spectrum sound over the target area, and dramatically reduce the presence of many species of bird. Ecological Applications suggest that the reason the sound repels birds is not by scaring them (as with ‘startle’ systems that occasionally play loud surprising sounds) but rather by making it hard for them to communicate. The Sonic Net makes birds unable to make out each other’s calls, so they move away to an area where they CAN communicate.

Original research by Dr John Swaddle suggests that broad spectrum sound masking may be very effective at reducing dangerous bird populations near airports, and may also be effective at reducing crop losses.

With our line of waterproof, field deployable amplifiers, broad spectrum waterproof loudspeakers, and automatic audio playback devices, Technomad has a range of products ready to help with your bird repelling project.

Turn-Key solutions arrive ready to use, and last for years in the harshest outside environments.

Technomad gear equipment is US-made since 1995.  The firm supplies the US government, Disney, Universal Studios, all major Cruise Ship lines, Club Med, and thousands of other demanding customers.

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Scoreboard Sound System at Berry College | Scoreboard PA

Technomad Berry College Scoreboard - Scoreboard PA System and Scoreboard Audio System from Technomad upgrades ballfield stadium at Berry College.

Berry College of Mount Berry, Georgia recently upgraded the the William R. Bowdoin baseball stadium with a Technomad Scoreboard PA System.  The system features the weatherproof Technomad Berlin HQ loudspeakers, as well as a PowerChiton Waterproof Amplifier module.

“…exceptional Audio quality at any volume level and the coverage area is phenomenal”.

The school’s existing audio front end (signal sources and a multi-channel mixer) was patched to the remote Scoreboard PA System using RDL Twisted Pair signal transmission devices, which Technomad pre-integrated at the factory.   This analog technology delivers CD-quality audio over a single pair of Cat5/6 wiring.

Steve Hill of Berry College writes, “I first was introduced to the Technomad line of products several years ago at the Infocomm show in Orlando. After an informative conversation with the Technomad sales rep, I was excited to try a pair of NOHO enclosures at our soccer/Lacrosse field. Needless to say they performed as well as the Technomad rep had promised, so we decided to try another pair of NOHO’s at the football practice field and they too performed flawlessly. Our latest project was to replace our old baseball field sound system that was attached to the press box and relocate it to the scoreboard. We installed two Berlin’s and a PowerChiton amp, sending the audio signal via CAT6 cable. The system offers exceptional Audio quality at any volume level and the coverage area is phenomenal.  All of this coupled with great technical support from the team at Technomad is what makes Technomad my first choice for Audio”.