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Charles Gervasi
Works at Four Lakes Technology
Attended University of Florida
Lives in Madison, WI
96 followers|64,037 views
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Charles Gervasi

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I said goodbye to my HP 48 GX after 20 years.  +Melinda Gustafson Gervasi loves to purge stuff that's collecting dust.  http://bit.ly/byeHP48
As a steady spring rain falls outside the window I hit sum on the spread sheet titled "2015 Purge". With a click  I learn we have purged 1,034 items from our house since the first of the year.  Yes, we passed the 1,000 mark, ...
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Charles Gervasi

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I love being able to decode serial data without getting out another piece of equipment.  http://bit.ly/DPOI2C
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Hidden Markov Model and Graph Theory for Metabolic Modeling talk with Dr. James Tripp at IEEE Madison meeting. http://bit.ly/TrippHMM
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+Dave Young and I pretend in a video to be working a development problem using Fluke Connect.  As in real life, the problem in our fictional scenario turns out to be something silly and obvious. 
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In a few years over half of mobile data will be carried by WiFi. http://bit.ly/Hndoff
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Charles Gervasi

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It seems hard to imagine MIMO WiFi being practical on a handheld device, but I remember how impractical a normal 15% retry rate seemed on 802.11(g) when I first saw it ten years ago.
The articles about the future of Wi-Fi in last month's IEEE Communications Magazine have me thinking about my experience with the history of Wi-Fi. 802.11(b) - This was the standard when I started doing wireless projects in the early 00s. (b) uses the 2.4 GHz band.
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Charles Gervasi

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It sounds to me like the conduit and insulation on a wire was breached, and the wire came into contact with ground water.  That phase shorted to earth ground.  Earth ground is high impedance, so it wasn't loads of current.  It did set up a voltage with respect to the surrounding environment.  I do not understand why this happened with AC.  It seems like something that would happen with high-voltage DC.  Do you have any more info?

I might be able to go by there at some point before I return to the US.  I have a portable scope that I could use to detect the field and a spectrum analyzer to measure it.  I'm sure loads of people in the area have basic test equipment.  

Let me know if the field is still there.  
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I took apart two +Fluke Corporation meters w/ BLE Fluke Connect. There is Cu text near the ant and use no Z-matching, but they still get good range to my iPod Touch. http://bit.ly/FlukCnct
Read about 'Tearing Down Fluke 3000FC Fluke Connect' on element14.com. My recent work with Dave testing Fluke Connect inspired me to take apart the Fluke 3000FC
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Haha it's always the darn current limited power supply.
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I shouldn't have been surprised to learn YouTube accounts for >25% of mobile data. http://bit.ly/MoblVid
Read about 'Streaming Video Accounts for Large Share of Mobile Data' on element14.com. When I wrote about the mobile data explosion last year, I was surprised so much mobile data is
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It's amazing how the macabre backstory to Cinderella reminds me of +Melinda Gustafson Gervasi's job.  Cinderella's mom dies, leaving her wealth to her dad.  Her dad re-marries and then dies.  The new wife squanders the money and doesn't do the upkeep on the family home.  

They should have had some type of testamentary trust in place to care for Cinderella.  If Melinda dies and I marry a shrew before dying, we're covered, our kids are covered.  How macabre! 
As the parent of preschoolers it was bound to happen, the request to watch Cinderella.  Never a huge fan of Disney movies due to the fact they always manage to kill off the mom, I had kept these films from our kids. But now, ...
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Have him in circles
96 people
Alexis Allison's profile photo
Bilal Ayob's profile photo
Andrew Linson's profile photo
Mike Brady's profile photo
Eric Culverson's profile photo
PCBWeb's profile photo
Steve Kuska's profile photo
Eric Lin's profile photo
Randy Scott's profile photo
Work
Occupation
Electronics Engineer
Employment
  • Four Lakes Technology
    Electronics Engineer, present
  • Prosoft Technology
    Electronics Engineer, 2004 - 2010
  • Jabil
    Electronics Engineer, 1999 - 2004
  • Phasetronics
    Electrical Engineer, 1997 - 1998
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Madison, WI
Previously
Madison, WI - Clearwater, FL - Gainesville, FL
Contact Information
Work
Phone
608-446-1178
Email
Address
6441 Enterprise Ln #114 Madison, WI 53719
Story
Tagline
Electronics Engineer focused on PCB-level Design, interested in technology, policy, language, and how things work.
Introduction
Charles J Gervasi is an electrical engineer located in Madison, WI focused on schematic and PCB level design.
Education
  • University of Florida
    Electronics Engineering
  • University of South Florida
    Electronics Engineering
Basic Information
Gender
Male
Relationship
Married
Other names
CJ
Amazing prices and service. They set me up with new service with Airfire went out of business. They recently sold me a new phone, letting me try many options, discussing my needs, and configuring the phone for me. I went home and checked prices on Amazon to see how much I paid for that service. I paid the same price as on Amazon. Even if I had had to pay a little more, it would be worth it to avoid time away from my life trying to fix a phone. You probably get that level of service from a big phone company, but with them you certainly pay for it many times over in the monthly contracts.
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Public - 8 months ago
reviewed 8 months ago
My brakes started dragging severely when I was nearby. I was a little cautious about going in b/c I thought this was a somewhat rough neighborhood. The people in this shop, though, are very friendly and professional. My problem was minor, so they fixed it FOR FREE. It will likely happen again if I don't replace some part. They wrote down the name of the part and gave me the number for their mechanic who could replace the part when I'm ready. My car was fixed FOR FREE. Amazing.
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Public - a year ago
reviewed a year ago
They are great. They are quirky in personality but very mindful of saving people money. They provide free loaner cars. They don't complain if you return the loaner with a little less gas. They almost refuse to do things on the maintenance schedule that they see as unnecessary. They are very focused on the concept that a $500 or $1000 repair bill is hard for some people to handle and find ways to spread out the work or do only what's most urgent. Every time I go there I save money, and it really adds up over time.
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Public - 3 years ago
reviewed 3 years ago
5 reviews
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UADC is amazing. Their job is to make life easier for the parents. If you have any special requests, they'll accommodate them. Their proximity to campus means great diversity in students and teachers. Many of the parents work on campus. If they offered programs for kids over 6, I would keep my kids there as long as possible.
Public - a year ago
reviewed a year ago
Dreambikes is amazing. They have good used bikes and do repair and maintenance at roughly HALF the cost of other bike shops. Dreambikes even gives great service in the springtime, when some shops take customers for granted.
Public - 5 years ago
reviewed 5 years ago