Pass the AVIXA AVIXA Communications Certifications CTS Questions and answers with CertsForce

An incident meter measures the light coming directly from a source. This type of meter is used to measure the intensity of light that falls on a subject or area, as opposed to a reflected meter, which measures light that bounces off a surface. Incident light meters provide accurate readings of the lighting conditions, which is essential for calibrating AV systems. According to Axis documentation, using an incident meter is crucial for obtaining precise light measurements in AV setups.

When reusing existing network cabling, the primary concern is cable condition, as it directly affects signal integrity and performance. Damaged or deteriorated cables can lead to transmission issues, especially for audio and video signals, which require reliable connectivity.

CTS Technology Specialist Reference

CTS materials emphasize inspecting cable conditions for any AV project, particularly when reusing existing infrastructure, to ensure the system will function as intended without signal degradation or reliability issues.

Higher resolution (like 1080p) increases bandwidth demands. While the cable was sufficient for 720p, switching to 1080p may exceed its capabilities—especially over longer distances (like 8 meters), leading to sparkling, dropouts, or signal instability.

“HDMI signal degradation over long runs is often caused by insufficient bandwidth handling, particularly at higher resolutions like 1080p or 4K.”

— CTS Exam Guide, Signal Integrity and Cabling Standards

When designing an AVB (Audio Video Bridging) system, ensuring that the network electronics (such as switches, routers, and network interface cards) are AVB compliant is critical. AVB is a set of standards developed to facilitate the transmission of audio and video data over Ethernet networks with precise timing and low latency. AVB-compliant network electronics are essential for maintaining the quality and synchronization of audio and video streams in such systems.

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In an audio system, a compressor controls the dynamic range by reducing the difference between the loudest and quietest parts of the audio signal. Compressors are used to maintain a consistent volume level, which is useful for both live and recorded audio environments.

CTS Technology Specialist Reference

CTS curriculum covers audio processing tools like compressors, which are essential for managing dynamic range and ensuring consistent audio output.

Subwoofers are generally not required for a PA system focused solely on speech reinforcement because they reproduce low-frequency sounds that are not necessary for intelligibility of spoken word. Speech reinforcement systems typically prioritize clarity in the mid and high frequencies.

CTS Technology Specialist Reference

The CTS curriculum states that speech reinforcement systems should prioritize mid and high frequencies, which are critical for voice clarity, while subwoofers are typically used in music reinforcement for low-frequency response.