GPS Navigation
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GPS Navigation
by Roger Rines W1RDR

Garmin's StreetPilot III Satelite Information Screen GPS first showed up at my house in 1997.  It was packaged with an earlier version of Street Atlas from Delorme Mapping of Yarmouth, ME.  Back then I just wanted a device that would locate my position with reasonable accuracy as I moved around the country with the mapping software showing my tracks.  In my early GPS days, having a mobile mapping system in a vehicle was a very rare occurrence because not many vehicle-mapping systems were made, and those that were available, suffered from very limited map displays.  With Delorme’s Street Atlas and a GPS running as we traveled around, we could instantly see where we were, and the mapping software would announce which turn to take over the van’s stereo speakers.

From those early days with Delorme maps, which still arrive here annually, GPS navigation has evolved into a much larger role in my vehicles.  Gone are the days when my laptop would be running off a power inverter in my van so an active mapping system would be available.  In its place, in a new Odyssey van, is an Alpine mapping system installed in the dashboard of my Honda.  On long trips, one of my Garmin StreetPilot GPS systems is usually mounted on top of the dashboard to supplement the limited Honda system, and to feed my APRS beacons.

Garmin's StreetPilot III Navigation ScreenWhile I enjoy the Odyssey’s navigation system, its performance doesn’t match the usefulness of Garmin’s latest StreetPilot III Plus GPS.  Honda’s in-dash installation for populated areas is great for getting places without a lot of wrong turns and request for help, but it doesn’t have much in the way of services such as gas, food, lodging or emergency services.  It also isn’t good at helping you understand which route to the nearest gas station would be best. and doesn’t have all the major roads in many places like upper Idaho or western Montana.  These details are where Garmin’s StreetPilot III Plus units shine in full-color, and with phone numbers to check if they are open.

Garmin's GPS-V - Dashboard mount. Garmin joined the list of GPS devices here in 1999 when they introduced their first StreetPilot unit.  Back then, color wasn’t an option and the need for street level detail was limited to narrow geographic areas because the size of memory cards to store the street level details were limited to 16MB.   Those early small memory cards didn’t store much, but they were easily programmed if you carried a laptop, CD and USB programmer along with you as you traveled.

My need for a Garmin became strong in early November of 1999 when my plans to move up into the world of GoldWings became serious.  After decades of riding “standards” loaded with luggage, it was time to get an easier touring motorcycle.  Along with the GoldWing came space to add APRS, and thus the need for a GPS.  A GPS probably would have appeared on my GoldWing even without APRS, because I enjoyed the idea of having an active vehicle navigation system when I travel. 

MetroGuide, Ver: 1 Map Load into a 128MB memory module.Adding to the usefulness of vehicle navigation came event route waypoints.  Our local Bay Area chapter of MARC is now supporting 8-charity events each year.  Each event is in a different location with multiple routes and some routes change each year.  In the days before I learned how to use the GPS to help me work the route, I was often making the wrong turn on a new section of the route when I would work it backwards.  After you accumulate enough wrong turns going backwards, you learn the route, but with the GPS showing each turn and rest stop clearly on the display, my wrong turn, and subsequent u-turns, have gone way down.

There are a lot of other useful areas for GPS, but when it comes to traveling with a paper map or a moving map, I’ve become addicted to the moving kind and think on-board navigation systems will begin appearing more often as their cost and technology matures.

Which unit to buy?
This is about as hard to describe as which motorcycle to ride.  For those who like GoldWings, nothing comes close.  For those who like Harleys, nothing compares.  For those who like BMWs, their decision is easy.  In my case, I like GoldWings so that is my choice.  I also like my new StreetPilot III Plus and that is my recommendation if you don’t have a unit already.

Garmin's StreetPilot - Trip Information Summary While I like the new unit best, I often have the older StreetPilot on the motorcycle.  Sometimes the older unit is there because the bride is using the newer unit for her travels.  The newer unit tells her where to go, which is something I’ve never really mastered in the 40+ years I’ve been with her.  Other times it is there because it is still a very useful navigation system for most of my Bay Area travels.

Garmin's StreetPilot - GoldWing Console mount - K1DRS This brings up the point that most of the recent Garmin units can work well.  All the recent units have a base set of maps that do a good job of showing all the major roads.  Garmin’s GPS III+ unit even has exit numbers and a lot of memory for routing and waypoints.  It also allows you to load a small number of maps from Garmin’s Road & Recreation map collection.  It doesn’t have removable memory modules so you cannot pre-store maps for a long trip, which keeps the unit from being a serious contender for me.

Garmin’s first street level system was the StreetPilot.  That unit has removable memory modules you can load with Garmin’s MetroGuide collection of maps.  In the first StreetPilot, you can load up to 50-map areas.  If you load maps from the earlier version of MetroGuide, which means you can load all the maps of Washington, Oregon, California, half of New Mexico and a major portion of western Texas into a 128MB module.  Translating that sentence means, you’ll have all the streets of all the towns in all those states along with a lot of services and phone numbers.  A handy proposition to be in when you’re out roaming and need a change of plans.

Garmin's GPS-V - BMW Cockpit shelf-mount - KG5MRCStreetPilot Colormap was Garmin’s second street level GPS offering and it doesn’t have the 50-map limit.  It also has a color display that is slightly smaller than the black & white StreetPilot screen, and more memory for waypoints and routes.  It also allows for faster data transfers if you don’t use Garmin’s optional USB programmer for loading memory modules.

Garmin's GPS-III - Yamaha handlebar mount. While we are on the subject of loading maps, it is important to talk about which maps are useful for the various Garmin units.  Garmin’s MetroGuide release-1 and release 2 will work with all the StreetPilot units.  Garmin’s Roads & Recreation maps are only intended to work with the GPS III and GPS III+ units.  You can load maps from Roads & Recreation into the memory modules for the StreetPilot and the unit will display the maps.  However, none of the StreetPilots will follow a route overlaid onto Roads & Recreation maps because there is too much information missing for the StreetPilots.  Only the second release of MetroGuide and City Navigator have the routing information necessary for the StreetPilot III Auto-Routing function.

Garmin's GPS-V - GoldWing dash mount. - N9ZKS If you are using a StreetPilot, plan on using MetroGuide maps, unless you just travel around a large metropolitan area.  Urban travelers can also use Garmin’s City Navigator series.  These map sets have a tremendous amount of map detail with phone numbers that make finding business locations real simple.  They aren’t very good at covering rural areas and smaller cities, so be mindful of your travel intentions if you load these into your memory module.

For traveling the US and Canada, think MetroGuide and think StreetPilot III Plus.  This color display unit with auto-routing and audio announcements will keep you on course and entertained as you roam the countryside.  For those on a GoldWing, the audio can easily be coupled into the intercom system so you won’t even need to add a speaker if you’re accustomed to being told where to go.

Garmin’s StreetPilot III Plus unit will help you route to any location it can identify in its map set quickly and reliably.  If you get off course, it isn't bashful when it announces, “please make a u-turn immediately.”   When I first heard that, the instructional tone and inflection had me wondering if there would be an “or Else” that might follow.  Keeping the female in the GPS quiet is a lot easier than in life, so for those who need to balance the scales, here is an opportunity. 8=D

What is this routing business and do I need it?
Most people won’t ever use routing because they often travel to places they know.  For those out wondering like Sharon and I did last July, we found routing handy at finding hotels when it was late and few had rooms.  Having the hotel phone numbers displayed on the GPS screen also made it easy to sit along side the road while calling the variousStreetPilot III - 2002 GoldWing - KR6AE locations.  Did I mention the automatic routing was also fast at helping us get to places that wouldn’t hold the room for long?

Garmin's StreetPilot - GoldWing RAM console mount - KA7QQVKnowing where the area services are located is really handy for traveling when plans change.  It allows you to get away from turnpikes with confidence because you know there is a greasy spoon, or flee-bag motel at half the price for a half-mile jaunt that you might not visit otherwise. 

Routing for most travel, isn’t necessary unless you really want to know exactly where you are and how many minutes it is to the next turn, and what time you will arrive at the destination.  This might sound stressful if you’re use to traveling in a more relaxed manner.  For me, getting to where I’m heading as planned is nice for targeted trips.  For vacation travel a more relaxed pace is better, so maybe we really don’t need a route to get us there efficiently. 

Garmin's StreetPilot III - GoldWing console mount - Radio Shack cell phone mount - W1RDRAround town, I don’t use routing at all unless I’m trying to get to an address, or business where I’ve never been.  I still use the moving map feature for known destinations when the traffic stalls and I want to keep moving.  Knowing the layout of local streets off the major roads has allowed a lot of detours around traffic snarls that I would have been sorry to make without the moving map support.

How hard is this to put on a motorcycle?
Simple is the answer, and many people have taken many approaches, and most seem to work fine.  Some like to put their GPS units on their handlebars.  I don’t like it on the handlebars because there is too much vibration there.  When I did put mine on a handlebar cross brace, I found myself catching the GPS at highway speeds as it began to leave motorcycle after the base mount disintegrated.  Now my GPS is mounted on the console just below the ham-radio on a cheap $19.00 Radio Shack universal cell phone base.  Since it went there, I’ve never needed to catch it.

What about cost?
Well, this is a toy that can consume some cash.  If you go for the new StreetPilot III Plus, you’ll spend around $750 to $800 for the entire package, which comes with one 128MB memory module and a USB memory programmer, plus a great little mount for the dashboard.  Reconditioned units bring around $650 to $700.   

Garmin's StreetPilot - Results of high speed run - W1RDRGarmin’s GPS-V Deluxe will cost from $425 to $595 new.  I’ve not seen any of GPS-V used units yet.  Earlier StreetPilot units are only available used and will run around $200 to $300 for the early StreetPilots, to around $400 for the Colormap StreetPilot with accessories. 

Garmin’s GPS III+ units are still selling for around $275 new.  When they are available used, they will set you back about $175 to $225.  There are less expensive Garmin units available that make great APRS feeds for less money, so if you don’t want maps or mobile mounting, consider a GPS II, ~$75, or a Delorme’s Tripmate ~$50.  Handheld units like the Garmin’s eTrex can be purchased new for $160 to $210.

In most cases when you buy a GPS, it won’t come with maps.  StreetPilot III Plus comes with City Navigator, but I think if you get any StreetPilot unit you should drop the $125 for the MetroGuide CD-ROMs and also consider digging a little deeper and get an extra 128MB memory module.  Garmin’s Road & Recreation maps can often be found used, for less than the $125 price dealers like to charge.  Discounters offering new units are getting hungry lately, so spend some time shopping.

Garmin’s StreetPilot III, GPS-V, GPS III+, and maybe the GPS III will all allow bi-directional communications with a TNC running APRS.  There are other larger screen units available for permanent mobile, marine or aircraft mounting, but this is a discussion about motorcycles so I’ll leave those alone.

Whatever unit you purchase, you’ll find they are fun to play with and there is a hobby dedicated to GPS owners called Geo-caching.  Geo-caching is a form of global hide and seek and can be a lot of fun for the adventure minded.  Extrapolating what I know about that sport, I can easily envision a rally, or route laid out for the GPS equipped motorcyclist.

Get coordinated; use a GPS.

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Last modified:
Sunday February 17, 2008.