SCARS LIVE QUESTIONS
Come and join the fun. Send us your pictures, riddles, or questions and have them added to our weekly trivia sessions. If interested please send your email including your submission to VOIP@SCARSVOIP.COM
LIVE QUESTIONS FOR AUGUST 1 & 2 - 2026, SUPPLIED BY K2HA
1, A Ham in New York sent an old 240-volt linear Kilowatt amplifier to a Ham in Switzerland. When it was used the power transformer failed. Which is the most likely problem?
A: Wrong line frequency.
B: The SWR was too high.
C: I was hooked up wrong.
D: It was damaged in transport.
2, What is the maximum power can you safely transmit through high-quality outdoor 75-ohm RG6 television coaxial cable on the 70-centimeter band considering the impedance mismatch at the transmitter?
A: 30 watts
B: 50 watts
C: 100 watts
D: 200 watts
3, Which answer is NOT the reason TV coax uses 75-ohm and not 50-ohm coax like amateur radio?
A: 75-ohm coax is optimized for minimum signal attenuation/loss over long distances.
B: High power signals are not usually used in 75-ohm home television installations.
C: An impedance of roughly 77 ohms mathematically offers the absolute lowest signal loss (attenuation) for delicate voltage signals.
D: Cable companies found that 75-ohm coax was cheaper to construct that 50-ohm coax.
4, Which answer does NOT describe a reasonable cause of amateur radio signal flutter?
A: Radio waves traveling via multiple paths arrive at your antenna slightly out of phase.
B: High-frequency (HF) signals refract through a constantly moving, turbulent ionosphere.
C: The movement of your antenna is blowing in the wind causes flutter.
D: Signals reflect or pass through ionized particles in aurora (northern/southern lights) activity.
LIVE QUESTIONS FOR JULY 25 & 26 - 2026, SUPPLIED BY K2HA
1, Photo Response Non-Uniformity (PRNU) is used by which of the following to determine a pictures origin?
A: Digital Image Forensics
B: Global Positioning Systems
C: Cloud Storage Platforms
D: Artificial Intelligence Generators
2, How does AI determine a photo’s location that has no GPS data attached?
A: It reads hidden metadata.
B: AI reasons from visual clues alone.
C: It searches for the exact same image.
D: It decodes image pixels through cryptographic watermarking.
3, An old cell phone that still works but is no longer up to date cannot be used for:
A: A car GPS tracker.
B: A Ham Radio Hotspot
C: A 5G mobile hotspot.
D: A dedicated Security Camera.
4, Which method is best to test new 50-ohm coax that you bought for your ham radio station?
A: Connect the coax to a Dummy Load on one end and an Antenna Analyzer on the other end to test for 50 Ω impedance.
B: Use a multimeter to test for continuity of the center conductor and the shield.
C: Use an Antenna Analyzer to check the Standing Wave Ratio (SWR) across your operating frequencies.
D: All of the above