Final answer:
In an AV Diags KIT test, jitter indicates potential packet loss without necessarily causing video disruptions as it pertains to the timing variation of packets, unlike frame loss, high BER, and low SNR which directly affect video quality.
Step-by-step explanation:
In an AV Diags KIT test, the factor that indicates potential packet loss but not necessarily video disruptions is c) Jitter. Jitter refers to the variation in the time between packets arriving, caused by network congestion, timing drift, or route changes. While jitter can lead to packets being delivered out of order, causing delays as the system reorders them, it does not directly cause a loss of data unless the jitter is extreme. However, when jitter exceeds a certain threshold, it could eventually lead to packet loss if the buffers cannot handle the variation in packet arrival times.
Frame Loss directly affects video quality, as lost frames result in missing information that is typically visible to viewers. High BER (Bit Error Rate) indicates a higher number of errors in the transmitted bits, which could lead to visible disruptions in video if not corrected. Low SNR (Signal-to-Noise Ratio) means that the signal strength is not much higher than the noise level, which can also cause degradation in video quality.