www.shaneburrell.com BLOG Search – Rescue – Scuba – Diving – Telecom – Electronics – HAM Radio

25Jan/100

Technical Rescue Ropes Anchors Class Photos

Photos from Ropes Anchors Class for North Carolina Technical Rescue

21Jan/100

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:

19Jan/100

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.  

15Jan/101

ISight MAC Fun – Goober Vision

It was a lot more fun than I thought.  Download and see for yourself or pass along to friends.  Get them on Goober Vision, its free!

Download below and send to anyone for a laugh.

iSight.app

Filed under: News 1 Comment
15Jan/100

Radio Propagation – Cowee Tower Site Study

I've been playing with radio propagation the past few weeks. This is a propgation estimate for 2.4Ghz from the Cowee Tower site towards Sylva.

15Jan/100

Underwater ROV (Part 2) – Beginning Design.

After a lot of research I finally have enough information to start some design and prototyping.  If you missed the previous post, its located here.  Here is a refresher of my design goals and info about how I plan to accomplish them.

13Jan/100

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.

12Jan/100

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.

7Jan/100

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

2Jan/100

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.