3 chapters across the catalog
Italian tour guides have transitioned from using umbrellas to using selfie sticks with markers to lead groups, utilizing VHF wireless transmitter systems for audio. The technical execution of these systems is criticized, specifically regarding tour guides over-modulating their lavalier microphones by holding them too close to their mouths. The segment includes a critique of the cheap, disposable mono earpieces provided to tourists.
Following the discussion on cell phones, the hosts share their personal precautions regarding radio frequency (RF) exposure. Adam Curry mentions his respect for high-frequency equipment after suffering an "RF burn" from a low-wattage transmitter. John C. Dvorak admits he uses speakerphone and avoids carrying his phone in his front pocket, reflecting a general caution toward long-term radiation exposure.
WIN System Repeaters, Ham Radio Broadcasting Regulations
Amateur radio operators discuss the technicalities of using the WIN System (Western Intertie Network) repeaters for long-distance communication. While the system allows for wide-area coverage, FCC regulations generally prohibit music broadcasting on ham bands, with a specific exception for retransmitting NASA mission control communications to astronauts. The discussion covers various modes, including CW (Morse code) and low-power milliwatt transmissions to international locations like Brazil.
