If the security guards are paying any attention at all, and they notice you have some kind of earwig/ear-piece/mic/etc on attached to a handheld or belt-mounted device, they will approach and ask what's the purpose of such hardware inside the casino (we're all well aware - at least I think we are - that some of the first words out of their mouths are always "This is private property, so... <explain yourself>"). I live in downtown Las Vegas and I see it happen quite regularly.
(
I only challenge you to benefit the others who may want to spend time in/near a casino with a handheld radio of some sort. Based on my experiences over the past 6 years, including the past year of living in the area & wandering in & out of on-Strip & off-Strip (Fremont St area near your apartment as well as The ___ Station & ___ Ranch casinos) at least once a week, what you wrote above it complete BS.
You REALLY mean to tell us you see casino security staff challenge someone carrying a scanner/walkie-talkie type radio "regularly?"
You told me in the past that you rarely leave your apartment. Glad to see that's apparently changed, but... I walked thru the el Cortez about a month ago, carrying a large, commercial VHF radio (with a Motorola 'Broadband' VHF antenna on it) in a back pocket & a smaller radio on a beltclip. Plus an iPhone in my pocket. No questions asked. We went from there to the Gold Spike, then FSE, including Binions, 4 Queens, etc. No questions asked. I had some radio stuff in plain sight, but other than that I wasn't looking suspicious, annoying anyone, nor seeking any sort of confrontation.
I love getting exercise & people-watching along FSE & the Strip. Usually it's about a 3 - 6 mile walk, once or twice a week,and in the Summer, it's mostly inside the casinos & hotels to escape the heat.
About a month ago, a friend & I spent about 45 minutes standing (& probably looking somewhat suspicious) inside a hotel/casino walkway across from the main entrance of it's popular nightclub right before opening. We're radio-geeks in our 40s, not clubbers, and we were standing there fiddling around with a Whistler 1080 & Uniden 396XT in our hands, 20' away from a half dozen club security & management types, the occasional casino/hotel security patrols (including directed patrols monitoring the line to get in the club), and who knows how many 1080P digital zoom cameras. No close encounters! I'm not trying to brag -- hell, I'd much rather have been flirting with one of the club bunnies half my age, but I'm just trying to point out how blatant we were with our radios. I think security is generally great at LV area casinos & hotels. I never claim they must not notice me, but based on your broad claim about them making contact with anyone who has some sort of "device" connected between their head area & their hand or waist, they're inattentive for not stopping me?! BS!
You're right, you don't need to be *in* a casino to monitor them. Did anyone ever claim otherwise? The reason we got up-close is because sometimes that's about the only way to capture & confirm a signal from a target location when the signal is known or suspected to be weak & its a high-RF environment.
Maybe YOU get stopped frequently in casinos, but what's so special about me that I don't? Your dis/misinformation is doing a disservice to people.