Shuttersparks

Welcome to my musings on whatever topic catches my eye, plus stories, recipes, handyman tips, welding, photography, and what have you. Oh, and analog/digital hardware design, and software. Please comment on the blog post so everyone who visits can see your comments.

Day: February 25, 2019

Robocall Observation

My mobile number has been on the National Don’t Call Registry since forever. When I first registered my number, spam calls stopped completely for years. It was great. I recommended it to others and it worked well.

Around the middle of 2018, I started getting spam calls again, despite the registry. Most of the calls were from my own area code. It got worse and worse until I decided to install a whitelist/blacklist call blocker. This is completely effective. I put my contacts in the whitelist, my own number on the blacklist, and no more unwanted calls.

The call blocker maintains a log file. It was interesting and satisfying to see the calls that were blocked. Some spam callers would hit my phone six times in 30 seconds trying to get through. I wanted the blocker to play the sound of raucous laughter each time it blocked a call, but, alas, it doesn’t have that capability.

The weird thing is that the spam calls continued for about two weeks and then abruptly stopped. I haven’t logged a spam call now in two months. What’s going on here? It makes me wonder if these robocall operations are a lot more organized than I thought. Maybe they share information — share lists of numbers to avoid because it wastes their time. If that’s true, there might be a larger organization that could more easily be prosecuted for conspiracy than lots of small operators. I dunno.

Some Favorite TV Channels Will Stop Working

But don’t be alarmed.

The title sounds like click-bait but it’s true. All around the USA, during 2019, some TV channels will stop working. This is because the FCC has ordered them to change to a different frequency. In my area, there are four channels, including PBS that will be changing frequency. This may happen several times during the year in your area since different TV stations have different dates for implementing the change.

Fortunately, it’s no big deal nowadays. When your favorite channel “disappears”, just tell your TV to rescan for channels. It will find the new frequency and everything will be fine.

The change is something of a hassle for the transmitters themselves. It requires changes and adjustments to their equipment and modification or replacement of their antenna(s). But this doesn’t affect you.

The NAB (National Association of Broadcasters) has a web site here http://www.tvanswers.org/ to help with your questions. You can enter your zip code and get a list of coming changes in your area by station and date.

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