Tag: Electronic engineering

Posted on

iphone4 antenna rant

There are two types of people in this world: those who say that crushed bedbugs smell like expensive Cognac, and those who say that Cognac smells like bedbugs.

I really wish the whole Apple antennagate would be over. Because I’m tired of explaining my position on it to everybody who drools over my iphone.

I have 3 points to make:

1) The office where I work has super ridiculously terrible ATT reception despite being in direct line of view from a brutalist style building containing ATT switches. So does an underground subway station where I change trains on the way to work. The rest of NYC has simply terrible ATT reception.

I’ve tried at the office, I’ve tried underground. I’ve tried cupping any which way. I tried moistening my palms. I can’t get to get a reliable bar drop thing. Sometimes, in fact, I got more bars. Oh, and that underground subway station? None of the older iphones ever had reception there.

This is all clearly a a product of me being a “fanboi”, and being under the heavy influence of Steve Job’s reality distortion field. I think they have mobile generators transmitting that.

2) Sometimes getting more bars when cupping iphone4 gives me an idea that now it is possible to make a case that will actually boost iphone reception by possibly attaching a yagi or another type of big directional antenna to the case. Maybe even something gigantic, like the apartment tower antenna or one of those huge homemade antennas that I used to make for crystal radios.

3) Right now I’m vacationing in the Ukraine. Here you can buy a sim card for $1 that gets you a phone number. On every corner there are agents and machines that allow you to refill these sim cards with ridiculously small amounts of money that get you ridiculously cheap minutes and data. There’s no standing in line while ATT employees are chatting / checking their social networks, scratching their asses, etc. There’s no hassle with forms, accounts, etc. You spend a little money, you get your phone to work. Most phones are unlocked. Reception is excellent everywhere. I hear they are working on making iPhone’s mini sims working with iPhones. People are ready to pay just about any price for the 4th iPhone. Apple would do much better with a simple business model: phones for money here first, and then in the US for us, who have to deal with ridiculous contracts and lock-ins. Grandstanding politicians would gain my vote if they did a little trustbusting in the cellular service industry.

Posted on

Toy phones

If you think that cell phone toy that you bought your kid is cool, or remember the toy phone of your childhood, check this out – a set of toy phones out of 1927 Sears, Roebuck catalogue:

Posted on

Entrepreneurship Heros II: Night at the Museum

If the Seal of New York City were designed today, it would not have a sailor and a Native American on it. It would have a cab driver and a food cart vendor.

Cab driving and food vending wood seem like the two of the most democratic enterpreneurial options, the foundation of which is the public streets New York City: you just wheel out your vehicle and try to make some commerce happen. The only thing that you need is a license. The one for cab driving is called a “medallion”, costs $766K, and as an investment vehicle outperformed just about any commodity and stock index. The food cart licesnses are also very expensive. Plus you are hounded by NYPD, Department of Sanitation, and who knows what else. Cab drivers and food cart vendors are some of the hardest working and most prosecuted businesmen in the city, but sometimes they have their own victories, big and small.

You don’t need to go any further than the Metropolitain Museum of Art to see two interesting examples. Right in front of the museum there’s a collection of food carts. They all are very typical carts, none of them are of the fancy variety. There are two types represented – the basic “dirty water hot dog” cars and “street meat” carts. But there’s one important difference – they all have stickers that say “Disabled Veteran”, and there’s usually an actual veteran somewhere nearby.

In the past years the space in front of the museum was either empty or occupied by one or two carts licensed by the Department of Parks. Then one day Dan Rossi, a disabled veteran, discovered a 19th century state law that allows disabled veterans to sell food in areas that are off-limits to others. The location in front of the museum is particularly lucrative because there are no affordable restaurants as far as an overweight tourist can walk. This hack is a small, but significant victory for food vendors. They are still ticketed mercelesly by NYPD, have to work crazy hours, and deal with the need to urinate in some kind of a miraculous way. At least they got an article in the New York Times written about them.

Across the road from the veteran’s carts is a mansion that belongs to billionaire Tamir Sapir, a former cab driver.

Mr. Sapir’s legend starts in Georgia, USSR. He found an interesting niche business: filling out complicated emigration forms for the Soviet Jews. At some point he was persuaded by his mother to give up his excellent life (it was a very lucrative business, from what I understand) and emigrate to Israel himself. He found himself in the middle of the Yom Kippur War, and quickly emigrated to the United States. He worked hard to earn enough money to leave rural Kentucky for New York, and then even harder to buy a cab medallion (which was a lot more affordable in those days). Then he risked everything again by putting up that medallion as collateral for a loan that he needed to open up an electronics store with a partner.

In the 80s there was a bit of a thaw in Sovet-American relations – Perestroyka and whatnot. There was a significant amount of people visiting the US – diplomats, scientists, sailors, and those invited by relatives. These people were allowed to exchange a small sum of rubles into dollars at the official rate – if I remember correctly, 60-something kopeks to a dollar.

What these lucky tourists wanted the most was electronics. In particular – vcrs, doule deck cassette players, and Walkmen. They had the money to buy these things, but here’s a problem: they needed 220 volt round plug devices, and more than that, VCRs needed to support the SECAM standard. You could not just walk into any store and find these: American market was all 110V and NTSC.

Every child in Odessa back then knew all of this, as well as that if you found yourself in New York City with some money, all you needed to do was trudge over to Timur’s (this was before he changed his name) store in Manhattan and find 220V SECAM VCRs.

Mr. Sapir was making a mint, but more importantly he was making connections with the Soviet ministers, diplomats, and future oligarchs. A little later he was invited back to the USSR, and made more connections there. These connections allowed him to play on the Soviet deregulation arbitrage market.

You see, when the Soviet Union was transitioning to the market economy all prices were regulated except those for commidities like metals, oil, and fertilizer. Those with connections could buy these commodities for already devalued rubles and sell them abroad for hard currency, making millions of dollars. All you needed was connections, which Mr. Sapir had.

He made millions, but the game became very dangerous as people tougher than NYC cabbies entered it. Mr. Sapir did not continue his career as a commodity exporter. Instead he invested his millions into New York City skyscrapers. The real estate market bottomed out, and you could buy a whole skyscraper for 10 million dollars or so. He bought a whole bunch of them. The price of Manhattan real estate exploded, and he became a billionare.

He bought a mansion across from the Metropolitain Museum to house his collection of carved ivory (for some reason this was a very popular area of collecting in the Soviet Union), has a yacht that used to be stuffed with a collection of exotic animal taxidermy that could rival Mr. Burn’s wardrobe or Amy’s car from Futurama.

Well, the two lessons here are: 1) you have to take risks and 2) you have to find a niche. The rest is luck.

Posted on

The Capacitor Plague

I woke up from a nap to a loud pop and a smell of burning plastic. The source turned out to be one of the most precious and important to me digital devices: a ReadyNAS NV+, a small silver box with over a terabyte of hard drives that store my backups, music, and photos.

Network attached storage (NAS) is an engineering compromise. It’s a storage solution that lets you keep a bunch of drives in a self-contained device. It’s redundant: you can lose a drive (which is a statistical certainty) and not lose your data. There are also handy usb ports that let you connect usb drives and a button to run backup jobs onto these drives. It also serves as a print server, and in theory it can be used as a streaming media server. On the other hand it’s slow (gigabit networks are not fast enough when you need gigs of data fast), a complete nightmare to use with photo managers like Picasa, and an even worse nightmare if you want to use it as a Time Capsule.

I’ve spent a lot of time babysitting my ReadyNAS NV+: changing the defective RAM that it shipped with, updating the buggy firmware, finding the right drives for it (some don’t have the right temperature sensors). Don’t get me started on what it took to make it work with Mac’s Time Machine.

And after all that, the one box that was supposed to keep my precious digital archives safe was smoking. This was preceeded by a few days of weird performance issues and a couple of hangs. The power supply finally died a horrible death, and I realized that once again I was falling victim (or “mugu” as Nigerians say) to faulty capacitors.

According to Wikipedia, the name of this phenomenon is “Capacitor Plague“. There is an epidemic of failure in electrolytic capacitors from certain shady manufacturers. Electrolytic capacitors are usually found in power supplies. They are little aluminum cylinders filled with special film and electrolytic liquid or gel. Power supplies get very hot, and the liquid part of the capacitors, the electrolyte, always wants to either dry up or explode. The formula for the electrolyte is very hard to get right.

The rumor is that one or a few companies resorted to industrial espionage to steal electrolyte formulations. They weren’t entirely successful – they either got an incomplete formula or just plain Brawndo.

Spectrum Online did some digging:

“According to the source, a scientist stole the formula for an electrolyte from his employer in Japan and began using it himself at the Chinese branch of a Taiwanese electrolyte manufacturer. He or his colleagues then sold the formula to an electrolyte maker in Taiwan, which began producing it for Taiwanese and possibly other capacitor firms. Unfortunately, the formula as sold was incomplete.
“It didn’t have the right additives,” says Dennis Zogbi, publisher of Passive Component Industry magazine (Cary, N.C.), which broke the story last fall. According to Zogbi’s sources, the capacitors made from the formula become unstable when charged, generating hydrogen gas, bursting, and letting the electrolyte leak onto the circuit board. Zogbi cites tests by Japanese manufacturers that indicate the capacitor’s lifetimes are half or less of the 4000 hours of continuous ripple current they are rated for.”

Wastefulness of today’s society masks the problem: most people don’t perform autopsies on their dead $70 DVD players or $500 computers, they just use that as an excuse to buy the new hottness. The techies with (or without) spare time and soldering skills do the following: fill bulleten boards with tales of saving their devices by soldering in new capacitors; search for instructions on how to solder and purchase capacitors; and curse creatively after doing it for the 5th time.

The unique thing about the capacitor plague is how easy it is to identify: the capacitors literally blow their tops, venting electrolyte through the special stress relief indentations. It’s also unique in that anybody with a soldering iron has a very good chance of fixing it: the caps are easy to locate and solder. In the age when most electronic components are of the “surface mount” type (the size of a sesame seed) or chips with dozens legs as fine as silk, soldering in a two legged capacitor is very refreshing.

Here’s a nest of capacitors from my busted power supply: two in the left corner are clearly popped, the one on the right is probably ok:

In the last couple of years the following devices that I own fell prey to faulty caps: a cheap off-brand dvd player, a speed control on my Dodge Caravan’s air conditioner, a Netgear network hub, a huge and expensive Air King window fan, and now, my ReadyNAS. The interesting thing is that the problem exists in both high end and low end products, as well as in high tech and low tech ones (I did not know there were electronic components in the window fan).

I am out of warranty on my ReadyNAS because I bought it in May of 07. The following passage leads me to believe that the shitty capacitors are a problem that they are aware of and (maybe) fixed in newer releases of the hardware (they could not offer a 5 year warranty if they used the same capacitors – they’d just go broke).

“Please be aware that ReadyNAS purchased prior to August 21, 2007 carries a one-year limited warranty. Extended warranty purchased for these ReadyNAS will be honored by NETGEAR. ReadyNAS NV+ and 1100 purchased August 21, 2007 and later have a 5-year limited warranty, and the ReadyNAS Duo has a 3-year warranty.”

The brand name of the popped capacitors reads “Fuhjyyu”. It lead me to the an urban dictionary entry that says that Fuhjyyu is either

“1) Chinese word for feces.

or

(2) Brand name of abysmal quality capacitors that are installed on logic boards, switching power supplies and various other electronic components.”

There’s also a post from a guy who implores ReadyNas to stop using those capacitors.

Then there’s badcaps.net – a global capacitor gripefest that is too depressing to read.

You can see a nice gallery of busted caps over here

There are broader implications of this: coupled with the fragile lead free solder, leaky capacitors don’t only cause kajillions of dollars of damage, but will also make electronics of our era impossible to use in the near future. The aluminum in burnable cds and dvds are rotting too, destroying the record of our time.

Posted on

Blue Sun Corporations

Blue Sun Corporation is and important, but not very noticeable part of the the brilliant, but so very canceled TV series Firefly. Their logo is everywhere you look, but they are oh so very evil. They conveniently provide all sorts of goods and services, but at the same time they run sinister human experiments, employ vicious killers and wallow in their crapulence in every imaginable way an evil corporation could.

You can buy your very own Blue Sun t-shirt at Think Geek.

In Manhattan there are two corporations that very much remind me of Blue Sun: Verizon and Chase. Every time I deal with them I feel that I am forced to do things that I don’t want to do and that I am getting a bad deal. The only reason everybody’s dealing with Chase and Verizon is because they are everywhere you look. In Manhattan you can’t swing a dead cat without hitting a Chase branch, and Verizon cellular signal reaches underground into some subway stations.

Chase advertises its omnipresence with this sinister ad that could just as well be from an alien infection film.

This kind of ubiquity allows these corporations to charge above market prices and have bad customer service.

Why do I hate Chase? Well, they keep thinking of ways to make depositing money more difficult. First they changed their deposit slips. Am I the only one inconvenienced by that? No. Here somebody altered the little poster announcing the change.

Now they started using cash machines that do not take envelopes, but scan your check. As you, me, and the people who plowed money into Riya, you can’t rely on computers to non-trivial optical recognition. I tried depositing 3 checks several times. The machine ate one of the checks (not giving me a receipt) and rejected the other two. I wasted a lot of time and cell phone minutes trying to report the issue (they did not even provide a courtesy customer service phone). I still haven’t seen the money from that check.

Lying commission-driven customer service is another big problem. At Chase they constantly trying to sell you something. Once a customer rep tried to sell me a historically market out-performing mutual funds. He had this awesome “prospectus” with charts carefully selected to show crazy returns, but refused to give me a copy so I could research it.

Verizon reps will routinely forget to tell you about contract extension that comes with any service change, even if you don’t have get a new phone. Then they will refuse to change anything in your contract. They will add expensive features you don’t ask for. Good luck trying to have your defective phone repaired – it’s an ordeal.

Both Chase and Verizon are a bad value, but great convenience. I suspect that part of their penchant for name changing is not so much because they keep buying up competition, but because their customers don’t think very well of them at all. I was their customer when they were Chemical Bank and Bell Atlantic. They sucked back then too.

The worst part of dealing with banks and communications companies is that they heavily penalize you for your mistakes, but there’s not much you can do to charge them for theirs.

Chase stopped sending me Amazon credit card rewards for about a year. An hour of customer service phone calls and a month later I got my Amazon gift certificates. It’s free for them to mess with you: you have to do a lot of work to make sure that what you get from them actually comes through. Instead of digitally depositing the certificates, they send them on paper slips containing long strings of letters that you have to type in. It’s cheaper to splurge on the cost of printing and mailing in the hope that it will get lost. And if they stop sending them and you forget? Bonus. Also, there’s something called “float.”

On the other hand, send your credit card payment late and you get a huge fee.

Use a bit more minutes than are in your Verizon plan, and you’ll get a bill that will make your teeth grind. But on the other hand, they overcharge you and then sheepishly return the money (which just now happened to me), you don’t get to charge them a fine.

I think there was this guy who charged his bank a fine for every mistake that they’ve made, but I can’t find a link.

Anyway, to make the long story short, Verizon and Chase make me want to vomit in terror. I’ve been with them for years, but it’s time for a change.

It’s interesting to note that I’ve worked for both Chase (briefly as a consultant) and for Newscorp. What’s interesting about it? Well, Newscorp owns New York Post which was founded by Alexander Hamilton. The “Manhattan” part of Chase Manhattan Bank (as Chase used to be known) comes from The Manhattan company, founded by none other than Aaron Burr. Because I currently work at the World Trade Center, I frequently walk past Hamilton’s grave in Trinity churchyard.

Posted on

gPhone

So, Google announced what we are going to get instead of the gPhone. This is a bit like getting $1000 towards college education instead of that hot new toy for your 12th birthday.

This is excellent news, of course. I really hope this will force the evil cell phone companies in the US to either change for the better or go out of business.

I spent a week in the Ukraine, and experienced what the cell phone experience is like in the rest of world.  I purchased a very nice new Nokia phone for about $60, activated a SIM card that came with it and immediately  received a phone number. It came with enough credits for 100 minutes of non-time-of-day restricted conversation. Later I was able to purchase cards with scratch-off code on just about any street corner that refilled my minutes at very reasonable prices.  The competition is fierce and prices are good because you can change phones and SIM cards at will.  Phone calls and SMS messages in the Ukraine were very cheap, and even calls to the US were only about 25 cents per minute.

On the other hand, Verizon, my provider of choice, increased the length of my contract just because I added a single handset, added extra data “services” to my plan without checking with me just because my phone supports them, made using activation of a third party handset a 4 hour rigmarole, not even counting all the time that I have to spend on the phone with them just to make sure that they are not overcharging me. I hate Verizon so frickin’ much, but at least they have enough towers in the city to actually allow to use my phone to, you know, conduct whatchumacallit — phone conversations. Ironically, the usually more reliable SMS messages are dropped or delivered days late with them.

Posted on

0% Content, 100% Lazyweb

I take pride in keeping my blog mostly lazyweb free, unlike some formerly awesome bloggers that I know. But mostly is mostly, I am not immune to the lure of letting my readers doing my research for me.

It looks to me like I can get a better deal than the one that my current hosting provider, Zipa.com is giving me. My monthly fee is only $10, but I get charged $1/gig for traffic over 10 gigs, $5 a month for shell access (that’s ridiculous) and $2 per month for an extra MySQL database. “Sweet Dreams” deal from Dreamhost looks like a pretty good alternative. Moving all my stuff is a bit of a hassle, so, before I move, any opinions?

Oh, also, my bank, Chase, is totally ripping me off percentage-wise. What do y’all think about ING Direct?

Um, also is anyone aware of a good deal on a Treo 650 with Verizon service (I already have a Verizon account, I hate them, but Verizon reception in NYC is better than any other carrier’s ).

[Update]
Thank you for all your responses. I decided to go with Dreamhost and ING Direct. If anyone knows about a good Verizon Treo deal, please let me know.

Posted on

Technology To Die For

I learned from a very interesting book called “Defying Gravity: The Making of Newton” that during the development of Apple Newton one engineer committed suicide. Being ahead of its time, Newton did not become popular, although it was engineered so well, that to this day many enthusiasts still use it, write software, and even make new hardware for it. I am actually thinking of buying one on eBay still.

I don’t know if anyone got hurt during the development of iPod, but it was involved in several fatalities for sure.

First, a woman beat her boyfriend to death with the device. This is reminiscent of Russian Emperor Paul I being killed with a snuff box. I was recently watching Leonid Parfenov’s awesome “Russian Empire” series, where he showed the infamous snuff box. I always thought that it was rather large, but it turns out to be about the size on an iPod.
[update] Apparently this was a hoax.

Also, a kid in Brooklyn died from a knife wound when he was being robbed of his iPod. NYPD and MTA reacted by this wonderfully cryptic ad. Without actually mentioning Apple or iPod they are urging hipsters to swap out the distinctive white iPod headphones for ugly Radioshack ones. Maybe they should also suggest buying Creative’s (or Microsoft’s when they come out) players – nobody will probably want to kill for one.

Ad:

Posted on

Man, These Guys Must Have Been Really Baked

I was looking through my favorite home automation catalog when I found this: a remote controlled rabbit ears antenna. You might still have to get up to wind more wire hangers onto the “ears” to improve reception, but now you can wiggle it all you want from the comfort of your couch.

One of the few top google results to “remote controlled antenna” is an entry at halfbakery.com – a site that either is ripping off or is being ripped off by Dilbert’s Lazy Entrepreneur.

What is really weird, is that absolutely independently of this find I recently had a conversation about halfbakery.com with the owner of http://www.dailyroutine.com whom I met at MS training in Atlanta last week.

Posted on

The Guardian Of the Notes

For a while now I’ve been trying to organize all of my notes. For years I had great hopes of finding a perfect electronic organizer. My first love and biggest disappointment were devices created by Jeff Hawkins and Celeste Baranski.

I owned my share of Palms and Handsprings, even the first Handspring phone module, but the damn things just kept crashing, running out of charge, loosing data and breaking exactly when I needed them the most. Also, the phone module was probably the worst cell phone I ever owned. Arrrr, just the memory itself of the scurvy thing be driving me nuts.

Funnily enough, three or four of my co-workers who did not even want to listen to my raves about Handspring in those days now own latest Treo cell phones which are a little less terrible, but still not as good as what I use these days. What high technology do I use? I use an ugly brick of a cell phone with Verizon service which is easy to use, keeps charge well, never crashes, is comfortable to hold and manages to get reception even in some shallow subway stations. For a phone book and notes I use little black books made by Moleskine.

Because of its slowness and bad text recognition my Tablet PC is sitting on a shelf waiting for a Linux installation, but I am trying to organize all of my notes and transfer them from random pieces of paper into neat new Moleskine notebooks. Tilde the cat keeps a watchful eye over them.