Stihl 025 Maybe others starting issue no spark.

After hours of head scratching and lots of rope pulling on my 025 I finally found a simple explanation for why it suddenly stopped starting.  I’ve replaced the fuel lines, new filters, new plug etc.  I even cleaned it all out, cleaned the magneto, and checked gap. It ended up being a loose connection at the spark plug wire connector. They use a spring on a barb and it had come loose on the boot. You basically push the wire thru the boot and re spear the barb. I also took the extra step of soldering the wire to the spring.  Hope this helps somebody else.

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Learning Neutral Buoyancy Scuba Diving Control How To

I have many of the open water skills mastered but as with any thing else try to practice each one to keep my muscle memory fresh in case I need the skill during an emergency.  My next skill I’ve been trying to polish up on is buoyancy control.  During my first dives my hands flailed a lot, I seemed to either be positive or negative and had trouble hitting the sweet spot.  I think a lot of it was I didn’t sit down and think about it until many frustrating dives later.  I’ve also been logging things I’ve figured out and tips that may help others which is below: Continue reading “Learning Neutral Buoyancy Scuba Diving Control How To”

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Public Safety Radio Programming – The easy way – Processing Serial

In 2004, we had a large flood in area and departments from other areas of the state came to the EOC to help. One of the big issues was getting radios programmed so we could talk to each other.  Recently while playing with my Kenwood TK-380 I wanted to see how hard it was to capture and view the data. Using a simple processing script I dumped the data to disk and could see it was binary data.   Continue reading “Public Safety Radio Programming – The easy way – Processing Serial”

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CoCo Days- Developing not for the desktop but back to cool gadgets with Micro-controllers.

At about the age of eight I remember waking up on Christmas morning and strolling into the living room to see a white Tandy box that would change my life forever.  I remember it like it was yesterday. A while box was propped up in the living room along with a joystick, tape drive, and printer.  I had wanted a microcomputer for over a year and now I finally had one.  Over the next year I learned the basic language and got to experience my first twenty four hour or greater stints of uninterrupted programming.  I remember days of digging through those Tandy catalogs and dreaming.  An avid subscriber to Rainbow magazine, first BBS operator in my area, among other things.

Continue reading “CoCo Days- Developing not for the desktop but back to cool gadgets with Micro-controllers.”

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Motorola ML850 Rugged Laptop Getac W130 Hard Drive Replacement

I recently had to revive a ML850.  Having lots invested in docking these I figured I might as well document what I had to do and take some pics to hopefully ease the pain of others.  First to disassemble these you have to remove the bottom “pan” from the unit.  The only two hidden screws are underneath the battery.   You only need to take out the case screws and not the rubber cover screws.  At the front of the pan there is a place to place a small flat head screwdriver to gently pry the pan off. The pan also has a wire that needs to be disconnected. Continue reading “Motorola ML850 Rugged Laptop Getac W130 Hard Drive Replacement”

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Dark Water Diving – Scuba in the Dark

Dark water diving initially to me was night diving.  I have done a few dives in semi clear water with the worst being a few feet of visibility.   Recently we did a training dive at Bear Lake and I got to experience what dark water diving was like.  It was a sunny day, as we descended with our lights.  At about 20′ it was almost pitch black and I needed a light to see anything. As we went further down on the anchor line visibility went to  near 0.  I could not see my hand or anything else for that matter. Even with my trusty dive light there Continue reading “Dark Water Diving – Scuba in the Dark”

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Underwater ROV (Part 1) – Ideas and using off the shelf parts.

I was recently reading the public safety diver magazine and noticed the small commercial ROV’s listed.  Intrigued I went to each site took a look then noticed the pricing.  They cost thousands if not tens of thousands to procure one.  I thought to myself, what if I just want a simple one to for what I’ve see as a need?  So I set out to do a quick feasibility study on build a small ROV for use with search and rescue and otherwise just something fun, useful, and inexpensive. Continue reading “Underwater ROV (Part 1) – Ideas and using off the shelf parts.”

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Apple Tablet – AKA The iSlate

I’ve been seeing various publications report that the iSlate is real and will be out on the market soon.  The applications for a inexpensive tablet PC with a virtual keyboard is really appealing to a lot of applications I think about daily.  For law enforcement it would be the perfect medium to complete paperwork, get signatures and be a general purpose device much more useful with a SSD than the current offerings of heavy rugged laptop currently used.  The medical field tablets have been used for quite some time now.  For technicians and tool makers this could be the perfect platform to provide a rich and powerful GUI to there wares via bluetooth or USB. Continue reading “Apple Tablet – AKA The iSlate”

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SS7 – A-Link M3UA MTP2 . Now what?

Well if you have been following along you either have a M3ua link up and running or you really want one, peeking ahead to see what it’ll do.  Well my first application was something very simple.  I wanted to do my own CNAM lookups so I built a small TCAP query interface.  It  allowed me to pass a DN via IP and returned the Callers Name. Very useful when you have  a VOIP switch and want to provide real cnam.   Continue reading “SS7 – A-Link M3UA MTP2 . Now what?”

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SS7 – A working A link. From MTP2 to M3UA.

I won’t go into the basics of SS7 here but here is a quick tutorial to get you started if you need help.

http://pt.com/page/tutorials/ss7-tutorial

At this point I assume you have a A Link or two of them, some hardware including some type of interface card like a Sangoma A101. If you have the gear, I prefer to use commercial gear to get m3ua rather than a link to the PC when possible.

I normally use the CentOS distro because its easy to get, has all the components and is very stable.  Main things you’ll likely need in it are development tools and lksctp.

With the sangoma card you’ll want to download and install the mtp2 driver.  There is sample code included and instruction on getting the MTP2 layer up and running. Continue reading “SS7 – A working A link. From MTP2 to M3UA.”

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