Tag: Electronics

All We Want for Christmas

 

As much as we may see signs posted on residential and church lawns reminding us that “Jesus is the reason for the season”, for many of us Christmas remains a season for getting stuff, giving stuff, and receiving stuff, among other reasons for the season, like visiting friends and family and engaging in charitable works.

 

In the last 20 years, getting, giving, and receiving electronic stuff has particularly taken off because of the accelerating pace of improvements in technology, some of which are real improvements while others are invented or hyped by marketers. When it comes to electronic devices like smartphones and flat panel televisions, last year’s model is outmoded, and a model from two years ago is obsolete. That is the perception marketers would like us to have, and many of us are willing to go along with it. Whether that is because of a real need for the latest technology or merely as a way of signaling to others about oneself is anyone’s guess.

Paonroue
A Peafowl flaring his feathers. Photo by Jebulon.

Or it could be purely for one’s own gratification and sense of identity. All of us are what we eat, but some people are also what they own. It’s nice to have good things that work well, doing what they are supposed to do. The point of demarcation toward excess is relative to every individual, of course, though as a culture we can detect roughly when enough is enough, either in quantity or quality. That is, after all, what makes conspicuous consumption worthwhile to conspicuous consumers consuming conspicuously. If no one noticed or cared, there would be no point to it.

Certainly it can be necessary at times to replace broken or malfunctioning stuff, and the occasions for doing so with electronic devices like computer printers seem to pop up more frequently with each passing year. Any other reason, such as an obsessive desire for acquiring the latest and greatest, seems suspect, maybe not to the person doing the acquiring, but perhaps to observers. Some of those observers may even be the recipients of a latest and greatest type of largesse at Christmas.

A routine from George Carlin’s appearance at Comic Relief USA in 1986. What makes this piece poignant satire is Mr. Carlin’s presentation of it at a charity event focused on helping the homeless, who of course have very little stuff. Warning: foul language.

Do they need more stuff? Maybe not. Do they want more stuff, or stuff of better quality than their current stuff? Maybe. When it comes to pricey electronics particularly, most of which are troublesome to recycle or to dispose of responsibly, maybe it’s best to ask before giving, or to buy something else altogether. Marketers of electronic products won’t like to hear of that sort of attitude, but who cares what they think? Their only interest is in generating excitement about the latest developments in their products, and if that leads to multitudes of genuinely unnecessary purchases of new products and dumping in landfills of products only a few years old, well then that’s none of their concern as they see it. It’s nice to have good things that work well, and even nicer to understand that is enough.
โ€” Techly

 

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The Path of Least Resistance

 

There are a confusing amount of options for protecting home electronics from power surges coming both from within the home and outside it. Within the home, surges can come from refrigerator or air conditioner compressors turning on; and outside the home, surges can come from electrical storms or power company lines. Looking for answers on the internet is only slightly helpful, since there appears to be a dearth of black and white information from reputable sources, while there is a wealth of arguing shades of gray on forums.

 

CyberPower-SurgeProtectors
Surge protectors of the kind most home electronics users will find convenient and affordable. The one in the middle includes coaxial cable connections. Photo by Stevebwallace.

This post does not propose any definite answers to the trickiest questions about surge suppression because there is a strong element of safety at issue, both to electronic equipment and to a home and its inhabitants. When it comes to solving electrical problems, there is no substitute for calling in a trustworthy and knowledgeable professional electrician. Clerks at electronics stores may or may not possess those qualities. Their primary quality lies in selling electronics, which doesn’t necessarily negate the other qualities, but the wise customer regards their advice skeptically so as not to end up like the customer played by Albert Brooks in the running store scene from his 1981 film Modern Romance, in which his brother, Bob Einstein*, plays a store clerk who ruthlessly upsells Brooks.

The first thing to know is that a power strip is not a surge protector. The second thing to know is that if a surge protector has coaxial cable connections for television or internet service, it is not absolutely necessary to use them. This is a matter of some controversy, and a researcher can end up floundering in internet forums looking fruitlessly for a black and white answer. Mainly it is important to understand that the best protection for electronics from surges traveling over coaxial cables coming from outdoors is proper grounding of those cables, preferably with a metal gas discharge tube integrated into a grounding block. Grounding is a complex subject and as such should be addressed by a qualified electrician when there is any doubt about it.

There is the question of signal loss when using a plug-in surge protector’s coaxial cable connections, and despite all the argument about it, throwing around of terms like “insertion loss”, difficulty of determining said insertion loss from manufacturer’s specifications, or use of expensive diagnostic equipment, the simplest answer comes from taking advantage of the signal diagnostics included within the settings menus of all modern televisions. Check the signal strength and quality with the surge protector connected in the cable loop and then again without it connected. A decent plug-in surge protector should show negligible signal loss. Signal is signal, and therefore the same diagnostic results for a particular plug-in surge protector should apply to internet signal. Length of cable runs and quality of the cable and its connectors will usually be the more important factor affecting signal loss.


The last thing to consider when using the coaxial cable connections of a plug-in surge protector is whether it creates a ground loop. That’s a subject which can make anyone but an experienced electrician dizzy, and for those folks who are hopelessly confused and have thousands of dollars invested in home electronics, it would be best to consult an electrician. For everyone else, it is best to understand a ground loop is not inherently dangerous, as long as everything is indeed grounded. A ground loop caused by differences in electrical potential between pieces of equipment introduces a buzz or hum of interference, and the easiest and cheapest way to minimize the problem is to clamp ferrite beads, or chokes, on the ends of coaxial cables and power cords.

Cable end
The end of a USB (Universal Serial Bus) cable with a ferrite bead, or choke, included along the line. Many cables for electronic equipment are manufactured with such ferrite beads molded in place on them, a good indication they actually work as intended. Photo by Stwalkerster.

Again, the best safety feature of any home electronics setup is proper grounding of coaxial cables and power cords, giving a path of least resistance for power surges, whether they arise from inside or outside the home. Add a quality surge protector to prevent damaging current from traveling the live wire into sensitive electronics and it will save them most of the time as long as dangerously high current has a path out of harm’s way.
โ€” Techly

* Bob Einstein, most well known for his persona as daredevil Super Dave Osborne and for his role as Marty Funkhouser on the TV show Curb Your Enthusiasm, passed away on January 2 at the age of 76. R.I.P.

 

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Poor Man’s Fertilizer

 

Historically, the term “poor man’s fertilizer” has referred to snow cover which upon slowly melting releases nitrates into the soil, and particularly to spring and autumn snows which make that fertilizer available to plants either just starting top growth or sending food down to their roots in preparation for winter dormancy. Expanding the definition to include the rain from summer thunderstorms makes sense because the “poor man’s fertilizer” of nitrates formed in the atmosphere comes down then in torrents, releasing far more than the trickle from melting snow, but the nitrates for greening up farmers’ fields and homeowners’ gardens is every bit as free and as welcome.

People and animals would no doubt rather do without all the drama accompanying the rains from thunderstorms. An ordinary sort of rain shower, however, does not produce the amount of nitrates for fertilizing plants that a raging thunderstorm can make in its electrical transformation of nitrogen into nitrates. Plain nitrogen, even though it is listed as such on commercial products as a fertilizer, is not the actual chemical used. Plants cannot do anything with plain nitrogen, nice as that would be since it is the most abundant constituent in the atmosphere, making up 78 percent of the air around us. To make anything of all that nitrogen, plants need it transformed into nitrates, and while rain and snow gently falling provide some, the lightning from a thunderstorm creates nitrates in abundance.


Albert Bierstadt - Buffalo Trail, The Impending Storm
Buffalo Trail: The Impending Storm, an 1869 painting by Albert Bierstadt (1830-1902).

 

Because a thunderstorm can drench an area with over an inch of rain per hour, many of the nitrates it produces run off into streams and rivers before providing any benefit to plants on land. This fertilizer runoff becomes more of a problem when it is increased by contributions from people who either added fertilizer to the land themselves, or dumped it into the atmosphere as a byproduct of their manufacturing and energy production. Sulfuric and nitrous oxide emissions from industry and vehicles produce particulate pollution that hangs in the air until it comes down in solution as acid rain, which is also heavy with nitrates. It is the countryside downwind of industry and heavily populated areas that suffers the worst effects of this excess of nitrates. For farmers and gardeners downwind, thunderstorms produce too much of a good thing.

For all the damage thunderstorms can do, from wreaking havoc on home electronics to pelting livestock and crops with hail, they also provide benefits by fertilizing the soil and cleaning the air. Native Americans were well aware of the duality in thunderstorms, and tried to take the bad in stride with the good. Part of staying safe during a storm comes from maintaining a healthy respect for its destructive potential, and then part of enjoying life comes from stepping outside after the storm has passed and taking in the fresh smells and sights of rejuvenation.
โ€” Izzy

 

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The Right Tool

 

Attempting a do it yourself (DIY) repair of something around the house or of a vehicle is mostly regarded by onlookers as well as by the eager amateur repair person as virtuous, valiant, and frugal, though after much frustration the do it yourselfer may not mind foregoing the admiration of family and friends in exchange for a functional repair. People get in over their heads and underestimate the value of technical skills honed from years of experience that the professional possesses, as well as often expensive specialty tools. Too many times the amateur tackles a problem using a limited arsenal of tools, and perhaps more critically, limited knowledge and zero experience.

DIY Toilet in Nature
DIY Toilet in Nature. Photo by Formerchemistuow. Sometimes the right tool is a telephone for calling on the help of a professional.

 

What is the problem? It’s a simple enough question, but one which an amateur will often follow circuitously through trial and error, while the professional, having likely seen the problem before, will cut right to the core of the issue. One of the best tools an amateur can employ when confronted with a difficult repair is the judgment to know his or her limitations and when the time has come to call in a professional. Sometimes that judgment is taken away from the do it yourselfer by manufacturers, particularly of electronics. The demise of Radio Shack, once a resource for electronics hobbyists and people buying parts for repairing their equipment themselves, is as much a testament to the connivance of manufacturers in shutting out amateur repair efforts on their devices as it is to the incompetence of Radio Shack management. Consumers have also acquiesced in the past generation to the accelerated obsolescence of electronic devices, and are far more inclined than they were forty or more years ago to replace malfunctioning equipment rather than repair it, either by themselves or by hiring a professional.

A montage from The Andy Griffith Show 1964 episode “Bargain Day”, in which Sheriff Andy Taylor, played by Andy Griffith, continually exhorts Aunt Bee, played by Frances Bavier, to call the repair man to fix their broken freezer. Aunt Bee, in a penny wise and dollar foolish way, fusses and drags her feet about calling the repair man because of the expense, meanwhile risking the loss of an entire side of beef she had hoped to store in the freezer.

For do it yourselfers, quick diagnosis of the problem needing repair is key, because otherwise they are prone to waste time, energy, and expense in labor and materials casting about blindly in hopes of isolating the problem. The professional will likely save that trouble and expense. Not always, but most of the time. Where a sophisticated diagnosis is required, such as it can be with electronics, the professional is likely to possess the proper equipment. Not all amateurs have the wherewithal to run out and buy expensive diagnostic equipment for what may only be a one time use. More and more of the devices we bring into our houses require special knowledge and tools to fix, if indeed a fix is possible or economical, and unless the defects they develop can be recognized by us quickly we are probably better off leaving the repair to a professional. The alternative is to limit ourselves to mechanical and electronic devices that were available one hundred years ago, when a person with a standard set of household tools could still effect many needed repairs without undue aggravation. In the twenty-first century, the end of Radio Shack ought to signify for most of us where we stand in our willingness and ability to repair things ourselves.
โ€” Techly

 

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Old Before Their Time

 

The newest model of Apple’s iPhone is due out this month, and for people with deep pockets, or for those who absolutely have to have the latest and greatest from Apple, that’s good news. No doubt it will be an excellent product. But will it be worth the high price tag of $1,000 for a device that will be useful only two or three years before the user discards it? Apple’s smartphones have always been high priced, and they haven’t had any trouble selling them. Apparently enough people think iPhones are worth the high price to keep Apple churning out new models.

 

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“No Walking Smartphone” sign in Okinawa, Japan. Photo by Connie Ma.

And churn is what it’s all about for the phone manufacturers, who want consumers buying the newest model to replace models that are only one, two, or three years old. It’s not all planned obsolescence, a sneaky plot by the manufacturers, because some of the churn is driven by the pace of changing technology and by consumer’s desire to have the latest and greatest. There are things phone makers have done, however, to make an older model phone prematurely less useful, such as creating barriers to repair by independently operating technicians. So much of the hardware is proprietary and locked down in one way or another by the manufacturer, with parts and service available only from their own very expensive shops, that consumers usually come to the conclusion they might as well buy a new model.

The situation in the electronics industry regarding independent versus factory authorized repair shops is comparable to an automotive repair scene where nearly the only option available to the consumer is the auto dealership because independents have been nearly frozen out by the manufacturer’s practices. The difference is that, unlike with cars, which cost $10,000 or more, many consumers seem to feel that electronics, the prices for which are generally below $1,000, are items better replaced than repaired, considering how the manufacturers have rigged the economics. Smartphone manufacturers in particular have widened and exploited this chink in the market.

Laptop and desktop computers are also sophisticated electronic devices, yet consumers don’t generally feel the need to replace them every two years. They are also more easily repaired or modified by independent agents or by the consumer, by adding higher capacity Random Access Memory (RAM) modules, for instance. The software lasts longer, too, with some users still relying on ten or fifteen year old operating systems, though that can be a dubious proposition for some less technologically savvy users who don’t know how to keep their software’s security up to date. None of these attributes appear to apply to smartphones, even though the frugal consumer will note that higher end smartphones fall in the same price range as the average laptop or desktop computer.


Smartphones by their nature have a small form factor, and that can make it difficult for manufacturers to pack every consumer’s every desire into each new model, at least until technology progresses further. It’s hard to believe, for instance, that between a smartphone’s internal data storage and a fingernail sized card that a user can load into the device, the data storage capacity of smartphones is now in the hundreds of gigabytes, up from several dozen just a few years ago. The computing capacity of these handheld devices now surpasses that of the average laptop or desktop computers available to home users at the beginning of this century. There’s little question then that, dollar for dollar, smartphones are a good value when comparing their computing power and usefulness with laptops and desktops.

2012.11.26 mobile relationship
Mobile Relationship, a 2012 cartoon by Manu Cornet.

What is in question is why a smartphone should give a consumer only two or three years of use before needing replacement. That’s an expensive proposition for people who are struggling to meet the mortgage payments on a modest house. Do those people need iPhones instead of other phones that cost two or three hundred dollars? Of course not, especially since some of the high price of Apple products is driven by fashion, not usefulness. Now that many of the telecommunication carriers have adopted up front or installment payments for their phones instead of rolling the price into a monthly plan on a two year contract, effectively hiding the price as far as the consumer was concerned, maybe the question of why that consumer can expect less than half the useful life from a smartphone than from their home computer will come up more often, and if the question is asked by enough buyers, especially if they withhold some of their dollars by skipping this year’s model, then maybe the phone manufacturers will amend some of their questionable practices.
โ€• Techly

 

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