Some useful info about what makes a ‘good’ and ‘easily findable’ site.

Fitness watches: Amazfit BIP in particular— Some Info.

OLED– New Display Technology! Low Power!

Do you need screen protection?? Likely Not, thanks to Corning Gorilla Glass

Happy Birthday, App Store!!!

Happy 40th Birthday KVMR July 21!

zombie downloader robot overlord malware.

What Is Alpha Techness?

“We Know What We Are Doing, You Don’t” AKA Technical Elitism
Case in Point: is /dev/urandom really that random, as it affects cryptography?

FIFA Fraud… Real or Fake?!

Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.

The intro & outro music was by Pentatonix.

Paul was in the studio today. Glenn called in.

When Paul read the events calendar he mentioned that KVMR will have an open house with tours of the facilities on Wed Jul 18 6p to 8p. The location is 120 Bridge Street, Nevada City, CA. Also see the link above regarding KVMR’s 40th birthday.

There was a brief mention of the ability of telemarketers to use bogus phone numbers when they call. You might even see your phone number showing up in the caller ID.

Paul said that video card and chip maker Invidia produced hardware algorithms that work with artificial intelligence (AI) that can render images in such a way as to pull out all of the noise in them more efficiently. Watermarks can also be removed. Also, Facebook has algorithms to process photos to turn closed eyes into open eyes and frowns into smiles.

Paul went on to speculate that there will be machine learning systems for robodialers that will engage you in a conversation. This is already being done with text chatbots purporting to be Russian bride hopefuls who then phish the target for their money, if the target doesn’t realize it’s a robot.

If you get one of these robo calls and you’re asked to make vocal ‘yes’ ‘no’ responses to seemingly innocent questions, your voice print can be recorded and later used on a bank site. Paul said that he hasn’t heard of this happening, but the possibility exists.

Paul found a website he likes a lot. It talks about what makes a good, easy-to-find site. The link at the top goes to 160 very readable pages in .pdf format that explain how to be authoritative, how to get linked, how to make sense and how to make your site palatable.

Google has put out some info about sitemap.xml and how to create a map of your website and give some indication of how you want it to be viewed. There are tools to help you, such as the Yoast plugin, for those running a WordPress website, which generates the site map for you.

Paul did some searching for a health monitor similar to a Fitbit and came up with an interesting device on Amazon called Amazfit BIP <see the link at the top> for about $79. He was interested in one that has GPS so he wouldn’t have to use his phone’s GPS. It’s able to run for a month on its rechargeable battery. Its low power drain is due to an OLED (organic LED) display. The display is made of a light-emitting semi-conductor using organic compounds that change color when a voltage is applied. It is viewed by reflected light and it appears similar to a magazine page. A backlight is available for dim light situations. He seems to like it a lot and thought Apple might use this type of display in future iPhones.

For those of us using regular LED displays Paul offered the tip of lowering the screen brightness to prolong the battery life.

He also noted that the Amazfit uses Corning Gorilla Glass <see link at the top>. It’s regular glass that’s dipped into a sodium & potassium bath at 500 or 600 degrees C, which makes the surface much tougher and less prone to scratches. Apple eventually started using it in their phones. Though Corning first developed it, the Japanese & Chinese have their own version of the glass. If you see the demo of it on Youtube, you probably won’t waste your money on a screen protector, Paul said. However, he does use silicone case to absorb the shock of a fall.

It’s been 10 years since Apple created their app store <see the link at the top>. It originally opened with 500 apps for the iPhone 3G. Both Android and Apple screen their apps now and are able to send a killbit to disable an app that’s misbehaving. A number of researchers have found that, over all, the Android apps “are somewhat less secure and will communicate in ways they shouldn’t with servers that shouldn’t know the things you’re doing”. “They don’t steal voice messages or voice communications but…potentially can steal things like your call logs and your contacts”. Pay attention to the permissions the app requests when you’re installing it, but be aware that denying it a permission may limit its functionality. Glenn found that out when he installed Whatsapp on his iPhone.

Jul 21 is KVMR’s 40th birthday. <See the link at the top>

Glenn said the domain name .pharmacy will be available soon. Those using it will supposedly be vetted. Paul noted that the definition of pharmacy varies from place to place and that regulations differ by region. In Mexico you can buy pretty much anything over the counter. Glenn said he thought that the domain will be closely regulated, but said he’ll check into that some more.

Talk turned to domain names (top level domains) in general. You can buy a domain and then resell its use for profit. Glenn, for instance, might buy the domain .fartoo and hope enough people will want to use it so he can recoup his investment and even make money.

Paul explained that if you want to register a domain like .fm you can start by going to nic.fm (put nic in front of it) to find out who runs it. In this case he found several place where he can register his site that will end in .fm. Paul then tried that with nic.pharmacy to find out more about the .pharmacy domain. If you want to know what domains are available, go to Wikipedia and look up tld (top level domain).

Glenn reminded listeners that they can call 530-265-9555 during the broadcast if they have any questions or comments for the guys. They can also send email to zen at kvmr dot org.

Paul tried to find out how to watch FIFA matches live on the internet so he did a Google search. When he typed in “fifa live” a bunch of bogus websites came up. He said there’s no way you’ll get to see it for free, but these websites claim you can if you just sign up and give them your credit card number.

Paul talked a bit about Linux, an operating system that runs not only on personal devices but also on servers that make the internet possible. ‘What Is Alpha Techness?’ is an article about Linus Torvalds, its creator and randomness. <See the link at the top>

One of the central features of cryptography is randomness, Paul said. When Paul was studying computer science there was a saying — “randomness is much too important to be left up to chance.” True randomness won’t come from a mathematical formula because it will eventually repeat itself. What’s used in the world of computers is something that’s indeterminable and unpredictable like movement of the mouse or the touching of the keys or even the temperature of the CPU.

There are 2 sources of true randomness that are readily available, Paul said. One is the rate of thermal conductivity thru a cheap semi-conductor (like a cheap germanium transistor). The other is nuclear decay where it’s impossible to know when the next particle will decay.

Paul reminded listeners they can hear past broadcasts of this and other KVMR shows at archive.kvmr.org.

If you want to look at websites from the past, go to archive.org. <There are all sorts of books, audio, etc, too>.

Last Updated 12:28 AM 7-12-2018

Some useful infoSome useful info

Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.

The intro music was Daft Punk by Pentatonix. Outro music was Bohemian Rhapsody, also by Pentatonix.

Both Glenn & Paul were in the studio today. Jeff Cox was a guest.
<There’s a little more about Jeff in the 4-25-18 show notes>

Glenn thanked supporters of KVMR. <If you’d like to become a contributing member, you can call the business office at 530-265-9073 or go to the KVMR website.>

Paul talked a bit about his trip to Poland a couple of weeks ago. The Polish people pronounce words like ‘Warsaw’ with a ‘v’ sound in place of the ‘w’. The Polish language is more like Russian and the only words he could recognize were those borrowed from English or have English roots.

Paul went on to talk about the Mandela Effect, named after Nelson Mandela. It’s the tendency for the brain to fill in the blank spots of our knowledge. When Mandela was in prison, a rumor got started that he had died in prison. People tended to believe that because he was an old guy and there was a paucity of reliable information coming from the government, so it was plausible. Paul said he sometimes falls victim to the effect during troubleshooting. You may think you know what happened but there is no evidence for it. Your brain fills in what it thinks makes sense when there’s a lack of understanding.

Regulations regarding bringing a drone aboard a passenger airliner can be ambiguous. When Paul was flying in Europe, his drone & laptop exceeded the weight allowance for the Icelandic airline he was using, but he got thru the security check. They seemed to be more interested in his laptop than the drone. When Jeff flew to New York recently, he didn’t get any clear answers from American Airlines about bringing a drone and he decided not to bring it.

England is a couple of years behind the US when it comes to regulating drones. Britain’s Civil Aviation Authority (CAA) is just getting around to requiring registration. Taking your drone with you when you travel is called drone tourism and there are websites catering to these tourists.

Glenn invited listeners to call 530-265-9555 with their questions and comments. Or you can reach the guys by email zen at kvmr dot org.

Paul related the story of a journalist who had heard that the NSA was gathering information about phone numbers of US citizens. The journalist decided to request the info they had about a couple of his phone numbers, under the Freedom Of Information Act. A couple of weeks later he got the reply: “The NSA can nether confirm nor deny the existence of the information you have requested.” That reply supposedly fulfilled their obligation to provide information even though it was useless.

Jeff asked for comments about the differences between the Apple watch and the Fitbit watch. He had heard that the Fitbit does pretty much the same thing as the Apple in monitoring health and fitness but costs about 1/3 the price.

Paul actually said that the Apple watch “is better integrated so that it automatically you can change the faces on your iPhone or your Mac or whatever it is”. Apple always knew that “people are more than willing to pay for style and convenience…they cornered that market”.

The Mac has what’s called the health interface, which looks like a red heart. “And when you download the Fitbit app it integrates with the health app, which has the heart on it, and it stores on your phone the data it gathered from the Fitbit, so it’s now in a central location”. Look on your phone for ‘health’. If you don’t find it there, do a search for the app called ‘Health’. <I think Paul may have conflated the Mac & iPhone.>

The iPhone 6 and newer models have an accelerometer, magnetometer and inclinometer built in. It can tell your position and which way you’re going. All these sensors record your physical activity. <I’ve heard this done by default, You may want to turn it off for privacy reasons.> Paul discovered that his phone has recorded such things as how far he’s walked, how many steps he took and how high he’s climbed. In answering Jeff’s question, Paul said maybe you don’t need the Apple watch or Fitbit at all.

Jeff said he knows someone with a heart condition who uses an Apple watch with another device that gives him a “single trace EKG” in real time. He didn’t know if the Fitbit can do the same thing.

Somewhere around IOS 9 or 10, “Apple announced that they were cooperating with the health industry to collect and distribute this information”. Machine learning is then used to look for anomalies in all of the data.

Gwen called. She wanted to know if there was free video driver support for her Windows 7 PC. The machine had been upgrade many times before she bought it.
– If this machine got an upgrade from an older operating system like XP, there may not be a driver available.
– Find out who made the computer. If it’s not on the front then it may say that on back.
– If you can’t find who made it, use the free program Belarc from belarc.com. It creates an inventory and describes everything it can find on the machine.
– Use the info Belarc gives you and go to the specific company that made the video card and get the driver from them. Don’t use Google search or you may end up in “places you don’t want to go to”. <Search results may take you to shady places.>
– It was eventually determined that her computer is a Dell — it said Dell in the BIOS setup. Belarc will reveal the “asset tag” number <later he said “service tag”>, which you can then use when you go to support.dell.comto get further support.
– It may be easier just to buy a new computer.
– If you can’t find a “service tag” number, you might get help by calling Dell and giving them the serial number.

Gwen also said she had used a Fitbit. She said she had a “muscle sensing thing” and it completely destroyed her “energy field”.

One thing fitness trackers like Fitbit are good for is “nominal medicine”, Paul said. They track what’s happening when you’re normal. No two of us are alike and the Fitbit will determine readings are normal for you. <Baseline readings>.

The disclaimer:
The views and opinions expressed on KVMR are those of the speaker only and not necessarily those of KVMR, management, staff or underwriters.

Glenn mentioned what he thought were other differences between the Apple watch and Fitbit. He wondered if the Fitbit can answer phone calls, read and send messages. Jeff said the one his friend has can do email and text (txt) and things he wasn’t interested in — activity monitoring was the only desired feature.

In comparing things like a Fitbit and Apple watch, Paul says he likes to go to Youtube to compare products. A good product review will take only 5 minutes and will go thru all of the features it has and doesn’t have. He doesn’t trust search result in this situation. “You’re asking for trouble to look for drivers or product comparisons. There’s too much at stake to just go anywhere and get the results”.

Brian called. He has a Windows 7 machine with an HP scanner. He is having trouble scanning and emailing the image. When he sans an item and tries to send it, most of the time it does send and sometimes it says ‘ready to be sent’ but some of them have already been sent and he can never know which have been sent, unless he asks the person who was to receive the email.
– The workaround is to send a copy to yourself at the same time <name yourself as one of the recipients in the To: field or the CC: or BCC: fields.>
– Alternately, don’t use the software that came with the scanner to do the scanning and sending all in one step. Do the scan and bring it into the computer. Then attach the scan to your outgoing email.
– On the computer use the “Start” button -> “Programs” and look at the list of programs under HP and find “HP Update”. Use that to update your software. It may not solve the problem, but do the update anyway.
– If the scan is too large it may not be sent. Gmail, for instance, is limited to about 9 or 10 megs.

Last Updated 2:48 PM 6-28-2018

Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.
There was no Zen Tech show on 5-30-18

Glenn didn’t play intro music. The outro music was by Pentatonix.

Glenn was in the studio today and Paul called in.

Paul called from Warsaw where it was 10:10pm their local time, a 9 hour difference from Pacific Time. It was 65 degrees & overcast. He got to Warsaw On Ryan Air for $75 return from London.

He and a couple of other people shared an Uber from the airport in Poland and he soon found that his cell phone no longer wanted to use the cellular network.

Paul had previously downloaded about a 60 meg map of the Warsaw area using Google Maps in the offline mode, just in case he lost the internet connection. But offline maps don’t do any routing to an address. He had to arrange a signaling system to find which unit of a thousand units AirBNB apartment building was his rental. The host was to flash the unit’s light on and off & he was to wave at her from down below. He expects to leave Warsaw on Monday.
<In case your phone didn’t come preinstalled with it, the Google Maps app is here.>

Paul talked a bit about his “British” teeth. He’s having his 4th implant done. It costs less in eastern and central Europe than it does in the West — by about a third or half.

Glenn said there was an update for IOS to version 11.4. He had installed it in both his iPad and iPhone. He asked Paul if he’s done the update yet, and that got Paul to talk about his iPhones.

Paul has both an iPhone 5 & 6. The iPhone 6 refused to work in Poland so he took out its SIM card and put it into the 5, which then worked fine. Virgin Media, who I assume is the provider, didn’t have a solution.

Paul said he did the 11.4 upgrade and he was using it in England. “It did seem to improve a number of things”. he said. Glenn said he did the upgrade last night and hasn’t formed an opinion yet.

Over the past 3 or 4 weeks Glenn’s iPad had been giving him trouble. It was freezing up. It wouldn’t restart but would come back to a point where he had to enter his password again. That happened about a dozen times and he hopes the update will resolve the problem.

Glenn thanked contributing supporters of KVMR. <If you’d like to become a contributing member, you can call the business office at 530-265-9073 or go to the KVMR website.>

Paul continued talking about the 11.4 update. The iPhone 6 is the oldest phone that can take the update. The iPhone 6 was the 1st one with the finger print sensor but it had a sluggish response. 11.4 improved the response. He said he uses the sensor mainly when he’s traveling. He thinks it’s the best way to keep the phone secure in case it’s lost or stolen.

Glenn said he keeps his iPhone 6S in a case and it never recognizes his finger print, so he uses a pass code instead.

Chips on credit and ATM cards are only now gaining popularity in the US. Europe has had them for something like 10 years. Now cards are coming out with RFID and you only need to tap the card on the ATM terminal, not insert it. And purchases less than $30 don’t require a signature “or anything” <a PIN>.

But if the card is lost/stolen the villain can make multiple purchases of less than $30. So in Europe, you can login to your account and inactivate the card until you want to use it again. However, Glenn pointed out that you might not realize the card is missing until you try using it much later. Paul said he’s notified his bank to alert him if his card is used for any amount more than 10 cents. He said that someone intending to misuse the card might run the card for $1 just to see if the card is good.

Paul noticed an experimental feature on Google Maps. One of the markers is a human figure with a thumb out. It’s to let people know that there is a hitchhiker needing a lift. He highly recommends Google Maps for not only for finding your way around but also for locating points of interest.

Glenn reminded listeners that questions or comments can be sent to the guys using zen at kvmr dot org.

Paul expanded on the problem of the 3G cellular not working when he got outside of the airport. If you ever have network problems on your iPhone, go to ‘Settings’ in the iPhone & iPad then to ‘About’, and at the bottom you’ll find the option to reset. Be careful about resetting the whole phone, which will “wipe the iPhone like it was new.” There is also another reset for all of the cell and wireless networks, which he said you can try. It didn’t work in his case and it took him 3 days of trying before he did the SIM card swap, as mentioned above.

Glenn asked what the Uber prices were like compared to the US. Paul said Uber quoted $25 or $30 to go 25 miles from the airport to town after midnight.

Glenn read an email from Betsie. One of the main reasons she recently got an iPhone X was to screen music for her DJ work. Her problem is that the ‘recently added’ playlist only goes back a short amount of time and the things that appear after that are her other playlists, not recently added songs. Paul said he wasn’t sure, but it’s likely there’s a setting that needs to be changed. Go to settings and see if there is a setting for iTunes and tell it how recent you want ‘recent’ to mean.

Paul went on to talk about storing photos online. He’s “driven to distraction” by iCloud Photos and refuses to use it. Glenn said he uses iCloud Photos. But due to some trouble he’s had, he had to reset his iPhone a couple of months ago, and every time he has to reset his Mac Mini or iPad or iPhone it messes up his synching. Right now, even though it says things are being backed up to iCloud the synching isn’t happening.

The big problem Paul has had is never being quite sure what’s been backed up to iCloud and uses Google Photos instead. On the iPhone 6 with IOS 11.4, the latest Google Photos has a prominent area that says “back up my photos now” where you give it permission to look at your repository of photos and back them up while counting down as they’re backed. There’s a setting that will let it do the backup only while using wi-fi, not the cellular network. You’ll probably want to use wi-fi only so as not to use up your allotted cellular data. After the backup, Google Photos asks you if you want to delete them from the phone. The program is the first one Paul has seen that tells you clearly what it’s done. At Google you get 15 gigs for free, compared to iCloud’s 5 gigs.

Glenn mentioned Vocre, an app that does language translation. <Find more about it and its developer in the 2-13-13 show notes>. Paul said he doesn’t use Vocre, but Google Translate instead. He used it while in Poland. He pointed his phone at a street sign and Google Translate changed the words to English right in the photo of the sign. Paul was really amazed. He said it can translate words in the photos you’ve taken in the past.
<The Google Translate app is here. And Vocre app is here.>

Paul said he uses the phone so much that he’s using a battery pack with it. The battery pack weighs 3 times as much as the phone. It’s 10 ampHour battery pack that cost him $10 from Amazon.

Paul said he’ll post some of the photos from his drone quadcopter to his Facebook page (not the Zen Tech Facebook page).

Last Updated 12:52 AM 6-14-2018

LOST DOG NOTICE:
Amy called about losing her dog Wally last night. He’s a chocolate brown bulldog wearing a light blue collar. She lives near Brooks Road and Tiger Lily off of Rattlesnake. Call 510-606-0445 if you have any info.

Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.

The intro & outro music was by Pentatonix.

Paul won’t be on the next show, on 5-30-18 and Glenn might be serving jury duty. So there’s a chance Zen Tech will not broadcast next week.

Both Paul and Glenn were in the studio today.

Glenn thanked subscribing members of KVMR. <If you’d like to become a member, you can call the station at 530-265-9073 or go to kvmr.org>

Paul talked about the GDPR <he said GDPA> — aka General Data Protection Regulation. It’s a European law to give users more control over how their personal information is gathered and shared by internet companies.
<U.K. vs. U.S.: How Much of Your Personal Data Can You Get?
How Facebook and Google Could Benefit From the G.D.P.R., Europe’s New Privacy Law>

Scheduled to go into effect in Europe on 5-25-18, it has some teeth and should be adopted in the U.S., Paul said, In particular, it requires a company to have a data protection officer and 2% of the company’s revenue will be levied as a fine for a violation.

Paul noted that some browsers have a setting to notify the site you’re visiting that you don’t want to be tracked, but it’s pretty ineffective and may even draw attention to you.

Glenn has seen notifications coming from some services that have changed their privacy policies. He wondered if they will now allow the users to see what data has been collected about them and to change it. In his answer, Paul wasn’t clear if he was talking about European users, but said that users will be able to see but not necessarily modify the data. <Google does let you delete the data. Facebook lets you see your data but not all can be deleted.>
<Google’s File on Me Was Huge. Here’s Why It Wasn’t as Creepy as My Facebook Data.
It’s worth reading those policy notifications. Getting a Flood of G.D.P.R.-Related Privacy Policy Updates? Read Them>

Paul told us about someone in Europe who looked at what data was collected abut him and found that his phone number was included. He’d never given out his phone number. Apparently, the number came from the data aggregated from the people who knew him.

Also, Paul warned us that there will be scams that take advantage of the GDPR. You may receive emails saying something like “in order to remain in compliance with the GDPR” you have to do this or that. Just ignore them, he said. If it was a reputable site trying to contact you, you’ll find out soon enough.

Glenn invited listeners to call in with comments or questions: 530-265-9555. Or you can email the guys: zen at kvmr dot org

One other requirement of the GDPR is that businesses must report any data breaches within 72 hours, if there’s an adverse effect on user privacy. And Glenn noted that when you request your data, don’t expect an instant response. The website is allowed some time to gather all of your information. Paul said Google used to have your info scattered among its various service, now everything about you is in a centralized location.

Security of companies like Google and Apple is becoming stricter for things like recovering passwords or even establishing an account.

Paul explained what happens when you fail with repeated attempts to login to an account, normally the account gets locked. It used to be that you’re notified that you’ve exceeded the allotted tries for username/password, that’s not true with many websites now. This to discourage anyone trying to break into an account. A lockout can last anywhere from 30 min to 3 days.

Glenn said if you tried to log in but failed a couple of times while using a password that you’re sure is correct, instead of taking a chance of being locked out, use the “forgot my password” link. Another tip is to use fake replies to the security questions like “who was your 1st girlfriend”, “your dogs name”, etc. That way they’ll know less about you. Just be sure to remember the answers you have on record so you can give the correct answers when challenged.

There are 2 things you should have for services like Google, a backup phone number where a text message can be sent, and a secondary email address (use a friends email if you don’t have another of your own).

As Glenn warned many times, be aware of phone calls <or emails> offering help with your tech issues, they’re often scams. If you need help with something, you should be the one to initiate the help request. <And in doing so, use a known good email address or phone number.>

Paul said both he and Glenn have had problems with the Apple ID. Sometimes they would enter the ID & password and it would just sit there with the spinning icon for a long time. Paul suspects it’s a security feature to deter those trying to break into the account. The hackers depend on quickly guessing the ID & password over and over. He said there is a number you can call if you have problems logging in with your Apple ID, but do it only as a last resort.

There’s someone at KVMR who had the firmware password changed on their Mac. In a case like this, one would have to authenticate that they were the original purchaser of the Mac. It was the first time Paul has seen this problem.

Neil called. Last week he got a phone call that was supposedly from Microsoft saying that he needed to renew his license. He ignored it, thinking it was bogus. Paul said it’s true that you don’t need to renew a license and, furthermore, Microsoft doesn’t call people. For private users, the computer manufacturer is your support — if you have a Dell computer, you deal with Dell not Microsoft.

Paul read a question from a listener. Verizon sent me a notice to pay for extra storage and to make a copy of the my stuff because it will be deleted on May 31. How do I find out what is being stored at Verizon?
– Don’t click any links in the notification.
– Verizon offered a bunch of free perks for a year when you signed up. Now that the year is up, they want to switch you to a pay service.
– If you don’t have a Verizon phone, ignore it.
– If you do have a Verizon phone, you have an online login where you pay your bills. That’s where you can look at your storage
– It’s possible that what’s stored at Verizon exists nowhere else (not on the phone itself). So it’s important to check, if you don’t want to lose something that might be important.
– Glenn said you can dial 611 to take you the tech support of your carrier. You can then ask how to get the data back onto your phone or computer.
– Paul said he likes having 15gig of free storage for his pictures at Google Photos, <As an alternative to storing your stuff with Verizon.>
– Glenn said he pays $.99/mo for extra storage on iCloud but is planning on moving everything to his home devices and dumping iCloud.

Bob called from southern Brazil using Skype. In 2 weeks he’ll be coming to the US. He’ll be using a smartphone for Uber or Lyft service because he doesn’t drive anymore. He wondered what’s a good choice for a mobile carrier. He thought T-mobile had a pretty good plan but wanted to know how to find the best carrier.
– You’re not limited to the 4 major carriers. There are mobile virtual network operators who lease access from the major carriers and resell to the public. <There’s more about these MVNO’s in the 8-24-16 show notes.>
– As an example, Paul uses the MVNO called Total Wireless, For about $25/mo you get a SIM card for your phone giving you unlimited voice and text. 5 gig of data is and extra $10. That’s about the lowest he’s found.
– Newer phones made in the last year or two “don’t care about CDMA or GSM“, Paul said. However, Bob’s phone is GSM so he won’t be able to use Verizon, which uses CDMA.

Bob then asked for a recommendation of an Android phone for under $200. Paul suggested looking on Amazon for unbranded Chinese Android phones in that price range. You can spend more for something like a Samsung Galaxy phone and you’ll get value for the extra money. But Bob said he doesn’t need a fancier phone. If you buy thru Amazon and you don’t like it, you can always send it back. And check out the user reviews on Amazon, not always spot on but they give you the general idea about a product. Also check out Kmart or Walmart where you can get a prepaid SIM card.

There’s also the used and refurbished market. But Bob doesn’t want to buy used due to a bad experience he had when he bought an iPad in the US and brought it back to Brazil. When he had problems with it, they wanted him to return it to the store. Paul said he could have gotten better service if he also bought Apple Care.

There has been resistance from the major carriers to the FCC effort for a portable SIM. It’s a SIM card that lets you switch carriers easily without removing the card. An example of it is called the eSIM. Paul said it’s not available yet but it will be. <I recall seeing and ad for a phone with an eSIM but don’t remember who it was.>

Paul talked about losing a password to a Windows 10 machine. Make absolutely sure a local account is used, he said. When you first boot a Win10 machine it tries to lure you to create an account at Microsoft, but in the far lower left you can choose “Local account”. There’s something similar with an Apple computer, but depending on the version of the operating system, there are “various incantations” to do it.

The Mac has an increased level of security now. There’s an “online repository of your keychain and your password”. You can use Command + R to get the recovery console on any version of the Mac OS going back to about 10.9. When you do that, it boots from a separate partition with a miniaturized version of the operating system, the Safari browser and wireless access. From that point you can reinstall your operating system. The other thing it lets you do is reset your password.

The last time Paul tried to reset the Mac password it was for his friend and it asked him to sign in with his Apple ID. He said that anyone with a Mac should be absolutely sure which Apple ID you’re using. Your Apple ID is an email address. His friend couldn’t recall which of his many email addresses had been used before. The solution was to use a different machine to go to appleid.apple.com and try to sign in. Paul suggested using the same Apple ID for all of your Apple products. “You should put in a recovery and you should answer the security questions,” he added emphatically.

Changelog:
Added link to article regarding privacy policy updates you may be seeing in your emails

Last Updated 7:50 PM 5-25-2018

Notifications of new show notes and edits are tweeted at: twitter.com/ddhart.
– They’re tagged with #Zentech.
– When what’s said is unclear to me (or I’m unfamiliar with a topic) I tend to quote (” “) verbatim.
– Editor’s comments are delimited by < >

For a couple of months, the audio of today’s show is here. Recent shows are here.

The intro & outro music was by Pentatonix.

Glenn said there will be a membership drive during the 2nd week of May. There might not be a Zen Tech show on 5-9-18

Both Glenn and Paul were in the studio with guest Jeff Cox.
Today’s show was more conversational than instructive. I tried to capture the highlights.

Besides training to be a KVMR broadcaster, Jeff, like Paul, has an interest in quadcopter drones and the hour was spent talking about them.

Jeff works for Holdrege & Kull, which was acquired by NV5 about 1 year ago.
It’s located at 792 Searls Avenue, Nevada City, CA 95959, (check their webpage for other locations.)
Phone: 530-478-1305
Learn more by going to any of the following websites.
handk.net
holdregekull.com
nv5.com
You can contact Jeff here.

Paul started off talking about bugs that have existed in the Intel CPUs since at least about 2007 and possibly as far back as 1997. <The bugs are known as Meltdown & Spectre are were covered the the 1-10-18, 1-24-18 and 1-31-18 shows> The problem affects anything that uses the Intel CPU and is thought to affect the AMD CPUs also.

Linux, Microsoft, and Apple have sent out patches to mitigate the problem but the computer can be slowed up to 15% as a result. The slowdown shouldn’t be noticeable when surfing the internet but will affect video rendering or audio production. Paul said he’ll post more info to the Zen Tech website. It’s not a substantial issue, he said. The danger is that it’s possible at all to exploit the bugs, not that it’s prevalent. Only about 1 in 100 attempts succeed. “It also relies on the fact that you must recently, before you rebooted, have done something that involved secure data”. <There has to be some sensitive data sitting in the CPU’s cache, as I understand it.>

Jeff Cox intoduced himself. He’s been working as a geologist at Holdrege & Kull for about 15 years. Holdrege & Kull has been recently acquired by NV5.

Jeff went on to say that his employer uses drones for aerial survey work. They don’t just take pictures from the drones, they also acquire thermal and multi-spectral data — useful in agriculture and forestry. They also fly LIDAR missions, which uses laser light to find distances and can determine topography in dense forests because the light can go between the tree leaves to reach the ground.

The advantage of using a drone over manned aircraft for LIDAR is that it’s able to fly close to the ground. It can get up to 400 returns per square meter, where the manned aircraft might get only 25. Using LIDAR, there have been many recent discoveries about the Mayan civilization in the jungles of Central America. Jeff’s company had deployed drones to survey sinkholes and landslides in the area, after all of the big rains this year.

But there is still a need for boots on the ground. Land surveyors are used to set markers in the ground at known coordinates, Targets are then attached to the markers that can be seen by the drones. <So they act as reference marks, as I understand it.>

Paul said the 1st drone he bought was the Syma X1 from Amazon. He wanted to get cheap drone, since he was just starting to experiment. It weighs under 1/2 a pound and therefore didn’t need to be registered with the FAA. It has no GPS and it sends no signal back to the operator. It does have a camera with a flash card. Paul discovered that it’s easier to keep track of it at dawn and dusk when the sun is below the horizon. That’s when by its red & green navigation lights are most noticeable.

Paul actually lost it once. He found out that just because the air is still at ground level doesn’t mean it’s still at higher elevations. The wind carried it off but fortunately he had his phone number attached to the it.

Paul said Amazon has the Syma X1 for $29. <This might be the one. There are others listed on that page.>

The guys mentioned a Chinese company called DJI that sells drones with more features. Jeff’s company uses one of their drones to fly the LIDAR unit. He said that drone is $5000 or $6000 for the base unit.

Jeff said that a license is required to operate a drone commercially. You’ll have to study and take A test. There are many rules and regulations to flying a drone commercially, including notifying pilots of other aircraft, e.g. those using hospital heliports that you’ll be operating in their vicinity. The acronym he used was NOTAM — Notice to Airmen.

Jeff mentioned the need to be sure the drone’s batteries are good condition — voltage, temperature and charge. Some have sensors to do that for you. Some drones carry a set of backup batteries for redundancy. If you have professional payloads costing thousands or hundreds of thousands of dollars, you don’t want it falling out of the sky.

Jeff said his company certifies the accuracy of their surveys to 1/10 of a foot. That meets the standards most professional land surveyors would like to achieve.

“The high level of accuracy possible with these quadcopters is achieved using a Russian navigation system called GLONASS“, Paul said.

Glenn thanked supporters of KVMR. If you want to become a member please call the business office at 530-265-9073.

Paul mentioned that the Falcon space missions by Spacex have something in common with the operation of drones — the autonomous robotic navigation systems that bring the booster rockets back to the ground.

The only phone call came from Ward. He commented that high school students went down to Texas for final competition in robotics and they did pretty well, though they didn’t win. There were teams from all over the world including Israel where robotics is part of the curriculum. And there was a heavy presence of defense contractors. If you want to see drones fly locally, go to the Gilmore School in the mornings. Some of the drones are able to come back to the same spot without using GPS: they process visual information and recognize the location.

Paul’s not very happy with the militarization of drones. He said there’s been talk of having treaties to prevent drones from being used as antipersonnel devices.

Last Updated 11:22 AM 4-26-2018