Southwest Circle Track

More of a squished oval, as you can see.

Southwest Circle TrackLast week, I flew about 8 hours, visiting several popular tourist destinations along the way: Sedona, Grand Canyon, Page, Monument Valley, and Flagstaff. For each leg of the flight, I had my Spot Messenger running, leaving a breadcrumb trail of my GPS location every 10 minutes. The result could be found on my Spot Public tracking page, http://tinyurl.com/FindMaria. (That page only shows my track points from the past 7 days, so it may be empty or showing something else when you view it.)

Yesterday, I viewed the results and captured them as a screenshot. Here it is. You can click the image to view a larger version that might be easier to read.

I guess I can say that this is the official track of Flying M Air’s Southwest Circle Helicopter Adventure.

And no, I’ve done geekier things than this.

My Geotagging Workflow

How I add GPS coordinates to my photos.

A while back, I decided I wanted to include the GPS coordinates in the EXIF data for my photos. Because my cameras (a Nikon D80 and a Nikon CoolPix something-or-other) don’t have built-in GPS features or communicate via bluetooth (or any other method) with a GPS, I have to manually attach the GPS coordinates to the photos.

I say manually, but I do this with software that automates the process. (I’m not a complete idiot.) Still, there’s a slightly convoluted workflow to get this all together. I thought I’d outline it here for two reasons:

  • Some blog readers might be genuinely interested. I’m not the only photo-snapping geek around.
  • By documenting this, I can look back, years from now, and see yet another example of how technology changes to make things easier and how I solved a “problem.”

So here’s the workflow rundown. I skipped the nitty gritty details to keep it short. (I read somewhere that people don’t like to read long blog posts.)

Step 1: Acquire the Photos

GlobalSat BT-335Bluetooth GPS w/ ChargersWhen I go out to do photography, I take minimal equipment. I don’t like to carry a bunch of stuff. But one of the things I do take with me (other than my camera) is a GPS data logger. I bought a GlobalSat BT-335 Bluetooth GPS Data Logger. I made my choice after lots of research, including this excellent review on bioneural.net. Three things sold me:

  • Price. It’s $69.95 on Amazon.com.
  • Size. It’s small and lightweight.
  • Connectivity. It’s Bluetooth, so I don’t have to deal with cables. (I hate cables.)

As an added bonus, when paired with my MacBook Pro, it puts live GPS data on my computer. Which is kind of cool, even though I currently have no use for this capability.

I’m not saying you should go out and buy this. I’m just saying that I did and I’m very satisfied. And while I certainly welcome comments that suggest other models, my choice has been made, so please don’t try to sell me on your solution.

A GPS data logger like the BT-335 does one thing, and it does it well. It keeps track of where you’ve been by recording GPS coordinates and corresponding times. It stores all this data inside itself with virtually no user interface. I attach it with a wrist strap I bought at a camera store to my camera’s shoulder strap. Before I start shooting photos, I turn it on and it does its thing. I basically forget all about it.

So when I go out to do photography, I turn on my GPS data logger and use my camera to take pictures. Pretty simply stuff, no?

It’s important to note here that the time on my camera must be right — at least within 10-20 seconds (if I’m on the move) or 1 to 2 minutes (if I’m moving more slowly). I check it against my computer’s clock (which is set by atomic clock) and adjust it a few times a year. The GPS data logger gets its date/time information from the GPS satellites.

Step 2: Get the Data and Photos on the Computer

The next step is to get all of the GPS data and the photos onto my computer.

LoadMyTracksAlthough GlobalSat has a perfectly fine utility for getting the data off its unit and onto a Mac, I use the freeware application, Load My Tracks. I tell it I’m using a GlobalSat DG-100 and because the unit is paired to my computer, it finds it. I can then download tracks into either GPX (which I need) or KML format. I download both — heck, why not? — into the folder where I’ll soon be downloading the photos. I then erase the data logger so I don’t have extra track points in it the next time I use it.

Next, I use a card reader with Image Capture, which comes with Mac OS X, to download all photos from my camera into the folder where I saved the track logs. They don’t have to be in the same folder, but I like it that way. Nice and neat. And it makes it easy to back up the logs with the photos.

Now I’ve got the GPS data and photos on my computer.

Step 3: Match GPS Coordinates to Photos

Next, I launch GPSPhotoLinker, another freeware application. I use the Load Tracks button to load up the GPX data file for the photo shoot. Then I use the Load Photos button to load all the photos I took during the shoot. I go into batch mode, which has my settings saved from the last session, and click Batch Save to Photos.

GPSPhotoLinker uses my settings and the data to write the GPS coordinates, including altitude, to each photo. It displays a progress bar as it works. When it’s done, the Latitude and Longitude for each photo appears in the appropriate columns in the list of photos. Here’s what it looks like while it’s working. (Yes, I took pictures of very big, red rocks.)

GPSPhotoLinker In Action

As for the big, red rocks, you can find them here. (But it seems to be off by a 10-20 feet; maybe it’s time to adjust the camera time again.)

Step 4: Backup

After losing a hard disk for the third time two years ago, I have become fanatical about backing up my data. After importing photos and linking the GPS data to them, I burn them onto a CD or DVD (depending on the capacity needed). When the burn is done, I check the CD or DVD to make sure it functions properly. Then I apply a label with the date and some descriptive information and file the CD or DVD in a box with a bunch of others.

I format the memory card for my camera in my camera to clear it out completely.

I then feel good about deleting photos off my hard disk, adding them to iPhoto, or modifying them in Photoshop or some other image editing too.

Sounds Like a Lot of Work?

It really isn’t a lot of work. It’s a whole workflow thing. Do it enough times and you can do it quickly. Steps 2 through 4 take about 15 minutes from start to finish.

That’s my flow for geotagging. What’s yours? Got a camera with a GPS or GPS connectivity built in? Please do brag about it by adding a comment here. I’d love to learn more.

SPOT Messenger: A First Look

Initial thoughts about my new flight following solution.

My friend, Jim, is an Idaho-based R44 pilot with a company very similar to mine. He’s a single pilot Part 135 tour and charter operator who sometimes operates over very remote terrain.

Of Flight Plans and Flight Following

One of the challenges we face as charter operators is last-minute route changes requested by paying passengers. For example, suppose the passenger books a flight from Scottsdale to Sedona. I’m required by the FAA to file a flight plan that indicates my route so that if we don’t turn up in Sedona, they’ll know which way we went and can [hopefully] find us. But at times — sometimes after the flight is already under way — the passenger might say something like, “Can you follow the course of the Verde River to Camp Verde?” This is not the most direct route and it’s not likely to be the one I planned. But what do I do? Say no?

[The right answer is yes, say no. That’s the answer the FAA wants to hear. But the FAA is not paying by the hour to conduct the flight. The FAA is not going to refer its friends to a friendly, accommodating pilot.]

The problem is, if I deviate from a route and something goes wrong, the search teams may not be looking for us anywhere near where we are. So they might not find us. And sure, I have an ELT (emergency locator transmitter) in my aircraft — even though it is not required by the FAA. But how well do those really work? It certainly didn’t help them find a pilot and his co-worker when they literally disappeared on a flight between Deer Valley in North Phoenix and Sedona nearly two years ago. They’re still missing.

And then there’s Steve Fossett. Or maybe I should have said, where’s Steve Fossett. They must have spent millions by now to find him and he’s still among the missing.

Airplane pilots and pilots flying in the flatlands of the midwest can request something called flight following from the flight service station (FSS). Flight following keeps you on radar so they pretty much always know where you are. The problem with helicopters is that we fly so darn low. Even if I flew up in nose bleed territory at, say, 1500 feet above ground level (AGL), the terrain in the area I fly is too mountainous to keep me on radar. I’d have to fly much higher to stay on radar. And if I’m going to be that high, I may as well fly a plane. So flight following is not a practical solution.

The True Geek’s Solution

Jim also flies in remote and often mountainous areas. And, like me, he’s a true gadget lover — someone who likes to fiddle with electronic toys. (I think he’s lusting for a POV.1 after seeing mine.) He was based in Chelan for cherry drying season and happened to see the SPOT Messenger displayed at the local Radio Shack. He went in and checked it out. Then he did more homework. Then he bought one and told me about it.

SPOT MessengerThe SPOT Satellite Messenger is a personal location device. It’s about the size of my Palm Treo and, as you can see here, bright orange so it’s easy to…well, spot.

My understanding of the unit is that it combines GPS receiver technology with satellite transmitter technology. So you turn it on and it acquires its position via GPS. You can then use one of four different features, depending on the subscription plan you choose:

  • The SPOT standard service plan, which costs $99/year, includes the following three features:
    • OK sends a text message or e-mail message to the phone numbers or e-mail addresses you specify. The message, which is customizable, tells the people on the list that you’re checking in OK and provides the GPS coordinates for your position. Those coordinates include a link that, when clicked, displays your position on Google Maps.
    • Help, is similar, but it sends a customizable help message to the people you specify. The idea here is that you need help and have no other way to contact someone who can help you.
    • 911 sends your GPS coordinates to the folks at the GEOS International Emergency Response Center, who, in turn, notify the appropriate emergency authorities. This is for real, life-threatening emergencies. The Response Center folks also contact, by phone, the two people you specify to notify them of the signal.
  • The tracking upgrade option, which costs another $49/year, includes live tracking, which, when activated, sends you GPS position every 10 minutes or so to the SPOT folks. This information is visible to anyone who has been given access to a Share page you configure with or without a password.

Jim went with both plans. When I bought mine on Monday, I did the same.

First Thoughts

I’ve been playing with SPOT on and off since Tuesday morning. In general, I like it and I think it’ll do the job I intend to use it for — flight following on those long cross-country flights.

After configuring message recipients, I started out by sending a few OK messages. Although the marketing material makes it seem as if those messages are instantaneous, they’re not. After pushing the OK button, the unit will try for up to 20 minutes to send your OK location via satellite uplink. It’ll send the message 3 times, but only one message is forwarded to the people on your list. For experimental purposes, I made myself one of those people. I had to wait longer than 20 minutes to receive one or two of the messages. To be fair, part of the reason for that could be my location at the time — flying between Wenatchee and Seattle in mountainous terrain. (I don’t think my cell phone was receiving very well.) The delay is satisfactory, once you realize that it’s not an instant communication.

For obvious reasons, I have not used Help or 911 yet. Let’s hope I never have to.

I did set up tracking. It took several tries to turn it on properly. The unit does not have a screen, so you have to rely on understanding the blinking lights to know what it’s doing — if anything. Twice I thought I was enabling tracking, but discovered that all I did was send OK messages. Once, tracking was on and in trying to turn it on, I really turned it off. In all cases, it was operator error. Evidently, you cannot turn on tracking during the 20-minute period in which an OK message is being sent. Since both features use the same button, it’s pretty easy to do one thing instead of the other if you don’t pay attention to how long you hold down the darn button.

My husband complained that the messages he received did not include the date and time. We later realized that it was because he was not viewing the message on his phone; he was viewing its summary. (My husband is text message challenged.)

Snowqualmie PassPad 6The e-mail version of the OK message is handy because of the link it includes. Click it and go right to Google Maps with the position clearly marked. Here are two examples. In the first one, we’re flying just to the east of Snowqualmie Pass over I-90. In the second one, we’re sitting on Pad 6 at Boeing Field in Seattle. These images are at two different magnifications. All GoogleMaps features work — it’s just the location put into GoogleMaps. My personal Messages page on the FindMeSpot.com Web site displays all points with the option of displaying any combination of them on Google Maps. It also enables me to download these points to a GPX or KML format file for use with a GPS receiver or GoogleEarth.

The Share page feature, which is still in beta, was not working when I first tried it. But it’s working now — and quite well! I set up a page that does not require a password so anyone could check in and see where I was when I was traveling with SPOT tracking turned on. Apparently, it only shows the past 24 hours of activity, so it you’re checking it now and there’s nothing going on, it’s because I’m not traveling with SPOT. But here’s what it looks like right now; as you can see, I spent a lot of time exploring Walla Walla, WA today:

SPOT Shared Page

A few things about this feature:

  • The lines between the points (which, for some reason, are not showing up in the screenshot) do not represent tracks. I was in a truck today and did stay on roads.
  • If the unit did not have a clear shot of the sky, the point that should have been recorded wasn’t. This wasn’t a problem today, since I had the unit sitting on the dashboard in the broiling sun — partially to see if heat would affect it. (It didn’t.)
  • Clicking a point in the list on the left side “flashes” that point in the display. You can also click other controls to get more information.
  • If you leave this page open, it will automatically update. So you can watch new points appear if you’re tracking someone. Way cool.

The URL for this feature is long and impossible to remember, so I created a custom URL using TinyURL: http://www.tinyurl.com/FindMaria. I invite you to try it for yourself.

Overall

My overall opinion is very positive. It will certainly give me peace of mind while flying in some of the remote desert locations I fly in. I think it’s worth the $150 unit cost plus annual subscriptions.

Even if something goes terribly wrong out there, I want to be found.

My next challenge: getting it to send OK messages to my Twitter account. Anyone have any ideas?