SJ23 Tech Tip E14, (Updated 2016-05-18) Bob Schimmel | |||||||||||
Cruising With a Personal GPS Tracker for Peace of Mind. |
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Many loved ones have raced to the dock to wave good bye to an intrepid solo sailor as he shoved off into the great unknown. The tear soaked handkerchiefs are evidence to the fact that the well wishers are concerned for the sailor's safety. The sailor, on the other hand, doesn't share the same emotion because he has assessed the risks and taken all possible precautions to equip the SJ23 with survival gear, GPS navigation, a DSC-VHF radio, a radar reflector, working clearance lights, hand bearing compass, charged battery with working solar panels, 2 weeks of fuel/food/water, etc. This is all backed up with current charts, a Rolex on his wrist, a calibrated magnetic compass and a bottle rum. Heck, even a float plan was submitted to the harbour master, just in case. So what's the problem? Well the problem is that he hasn't taken the
necessary step to provide a workable solution for the shore bound human
element in this voyage, remember the sweet heart holding the soaked handkerchief on the dock? She
may not know it but once a vessel floats out of VHF
range,
There is a satellite based GPS tracking device (SPOT HUG) available that is relatively inexpensive and can report your position and status to an email address of your choice. The network service covers the planet 24/7 and provides the same basic functionality as the sophisticated electronics installed on the offshore racing boats that scoot around the world at ballistic speeds. While the racers have electronics capable of two way communications to instantly send status reports to race head quarters (uplink speed is fast enough to support live video, email and some browsing), you will have to live with the "peasant version" of this service by sending a coded "I'm OK message" once every 15 minutes. This should suffice the "handkerchief" but capability may improve soon. While, the solo racing gangs have a manufacturer sponsored professionally installed system approaching $10,000.00, your system will cost only $100.00, plus service fees. Sounds a lot more tempting huh? Here is what the SPOT HUG device can do:
SLICK USE OF SPOT - The predecessor to the SPOT HUG is the SPOT (shown above) which I've used in the Canadian Arctic while supplying communications to seismic crews on the open tundra in the winter. I can attest to its functionality and accuracy on trackless terrain. The tracking is so accurate that despite our careful plotting on a chart we finally conceded that the SPOT was way more accurate than our manual navigation. The marks we pricked off on the chart had translation errors and we had to constantly stop our track machine to write corrections on the chart. The stopping was frustrating and time consuming. In the end it was more accurate to simply print the Google map with our "cookie crumbs" (electronic track) it. This was our first time with the unit and we had to confirm its accuracy at >660N. With experience we expanded our daily trips from camp well beyond VHF radio range because having a functioning SPOT extended our communications and safety range. The camp radio operator followed our track on his PC with better feedback than the verbal reports from the walking crews when they were within portable VHF range. In fact, it saved money because the expensive VHF repeater was not required since the operation of one SPOT unit protected 12 people. All around, it was quite cost effective and time saving given our situation. The accuracy is phenomenal. (I give a lot of credit to Captains Cook and Vancouver for their cartography work. This work is far more complicated than you think). SLICK USE OF DELORME Roardpost (formally inReach) - This a later version of a two-way satellite communicator that I used a year later in the Canadian Arctic. The advantage of this unit is that you can send text messages between two units via satellite. With the correct mapping application installed on your PC, you can follow a unit moving along the water/ground. I found this to be extremely convenient to track my buddy in the absence of all communications, which is still the norm in the Arctic and a good part of the rest of Canada. The capabilities and services of both units have improved since I used them in 2010. Both services now have global coverage which is great for a wandering sailor who wants to assure friends and family back home. NOTE: To the best of my knowledge
neither the US nor Canadian Coast Guard incorporate SPOT (or equivalent) to track a
person. They monitor distress calls via DSC-VHF/HF or EPIRB, voice calls via VHF/HF radio, and occasionally a cell phone call. Data communications from a DSC-VHF radio or an EPIRB
can be displayed on a chart plotter. Morse Code was shut
down in the early 1990s in favour of voice communications. Currently you can talk, browse, email or text message your
way around the world with Starlink, (Space-X based internet service). |
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