More maps for my Garmin GPS units

I have lately been experimenting with a slew of new maps for Garmin GPS units. The first one I added was the NY State Snowmobile trail map layer http://www.gpssledmaps.com/maps/ny.php . Here are two examples:

The layer is completely transparent and can be seen on top of any map. Snowmobile trails are very twisty and windy and in the field, you never know where they will lead you. Now with this layer, I know and this may be a real factor in some search in the future. Good to have and if distracting, the layer can always be turned off on the GPS.

Topo maps, 1:24ooo were not, so far available as Garmin GPS maps for NY State. No longert true. http://www.gpsfiledepot.com/maps/view/111 Here is a sample and comparison:

While the contour lines are better than ever, and the road data is much more up-to-date, wetlands are missing. But then they are available on Topo 2008, so now I have both layers on my GPS. But you can only access one at a time. So I use whatever gives me what I need most where I currently am walking.

Road maps: Till now you had to shell a good sum for a mapset that was good for use only on a single GPS unit. Well go here http://www.gpsfiledepot.com/maps/view/19/ and get yourself a road map set that is quite good. Some areas are not covered and do not expect turn-by-turn directions, but you can have quite a large area on your 2GB card.

Finally, if you want or need topo maps for Canada, here is a free source: http://www.ibycus.com/ibycustopo/

Not all sets are complete and some are updated every so often, so check each site again from time to time. There are more free maps available for various purposes and locations. But this is just a sample of what is available and what might be useful if you are in NY State or the north east part of the US.

Here are directions on how to switch between maps on your Garmin 60CSx GPS
http://www.miscjunk.org/mj/mp_mapset.html

Here are directions on how to load maps on your GPS:
http://www.gpsfiledepot.com/tutorials/how-to-load-maps-on-my-garmin-gps-unit/

If you don't have a copy of Mapsource, go here:
http://www.gpsfiledepot.com/tutorials/how-to-install-mapsource-if-it-didnt-come-with-your-gps/

SAR K9 Training with Eagle Valley

Training with Eagle Valley is always interesting. Many different problems are offered. In this instance Stryder, coming back after a bout with an enlarged prostate and thus getting neutered, started working on three simple human remain problems and did an excellent job. Remarks that I got were that Stryder seemed in very good shape and was ever so happy to work. He had good finds and refind and was ready for more, which he soon got, as in a slightly larger area and again he excelled in all parts of the exercise. The last hide was cut short as I needed to go back to the classroom to get ready for my presentation on GPS, this time mostly forcussed on the Garmin 60CSx.

Later on Stryder had a building problem. We used the dorm building and trailers, all used and heated so the scent picture was quite complex and there was a lot of residual scent from a previous hide spreading around. Stryder showed some frustration but I could still read him as he did not have a strong source of scent, and in the trailer where I figured by his behavior the person was hiding, he even showed more frustration, as he could not find the exact location of the person hiding, so I took him out of the direct scent cone, then he went back and indicated, but he never saw Jana, the subject behind the shower curtain, the scent coming down along the wall, yet trusted his nose and he was right as it brought him within inches of the unseen subject. It was interesting for me to watch and see him work the problem out. Actually I now realize that Stryder has had very little previous building search experience and none in lived-in buildings, so for a first experience, it was indeed a very good performance.

While all that was going on, I also deployed my APRS system consisting of the Yaesu VX-8 and the Kenwood TH-D7ag and Garmin 60CSx GPS. THis was the first time this system was depolyed not at home and it worked well, although I was never too far from base. I did not activate my Kenwood TM-D700 to repeat the signals as there was no APRS digi within range. Hopefully one of these days I'll be in range of such a digi.

We ended the day by following an urban trail in the village of Hanckock. Long trail, with many curve balls thrown by the fickle nature of scent and conditions.

I skipped dinner with the team as I had to drive home and did not want to drive tired and late at night.

Comparing sensors in a Garmin Oregon 400i, a Garmin 60CSx and the Yaesu VX-8

My house temperature was 65-66 degrees when I turned on my VX-8 and the sensor registered 77 degrees. Later on it got to 82 degrees. Well, that's the temperature inside the VX-8 so I guess some energy is converted to heat, and I was not transmitting. So all I can say, the VX-8 would make a dismal rectal thermometer... But if you want to know how hot it is in the unit, well I guess the number is in the ballpark.

Altitude:
I compared three instruments, a Garmin 60CSx GPS, a Garmin Oregon 400i and the VX-8. I looked at both GPS and barometric altitudes.

	Barometric altitude	GPS altitude
Garmin 60CSx	1072	1069
Oregon 400i	1081	1079
Yeasu VX-8	1092	1030

Measurements were taken in a single location (my living room) at about the same time, meaning very little change in the GPS constellation. The Garmin units show consistency and a difference of 9-10 feet. The VX-8 is in the ballpark but the GPS altitude is not as good. According the the topo map the altitude is 1055. Since I was not in the basement, maybe I need to add 8-10 feet or so and the map contour lines definitely predate the house...

My conclusion is not to try to land a plane using any of these three instruments only... Otherwise, gosh, it is good enough for me.

I also checked the GPS' precision in location and here the news are excellent! The table below shows the decimal part of the minutes in both longitude and latitude numbers, all in WGS 84 datum.

Garmin Oregon 400i and 60CSx	Yaesu VX-8
,758	.765
.878	.874

Now, this is only anecdotal data, a single measurement in the comfort of my living room, not taken in any extreme type of weather and conditions. But for me it is good enough.

My new Yaesu VX-8R radio/APRS

This is my new Yaesu VX-8R radio, A small but rugged and waterproof handheld which has a built-in GPS chip in its speaker mike and not only displays my location (in lat/long, WGS 84) on its screen, but can also send it via APRS, to the entire world, given it can reach an internet gate (i-gate).

If its transmissions make it to an i-gate, my position can be checked on several websites including my own K9CHP. Just scroll down to the Where am I page.

But even if I am truly hiking in the boonies, my VX-8R can transmit my position to my truck where it will be kept both on the Kenwood TM-700a mobile radio and the Garmin 60CS GPS. The TM-700a is now out of production and has been replaced by the RC-D710

Another possibility is to use my Kenwood TH-D7AG handheld radio that can be connected to my Garmin 60CSx GPS. This is the seup shown below. I trd using it in the field but the radio is fragile and not waterproof, so you have to protect it a lot and the connecting cable not only tends to get snagged but disconnects quite often, so the entire setup is of questionable field value. But it can be left at base and now they can have a precise idea of my whereabouts and anybody elxe using APRS in that area.

I can also connect the TH-D7AG/60CSx to a laptop and have the locations appear on screen. But the software I use needs internet connection to work at its best, so it won't be functional everywhere. The TH-D7AG is now out of production.





And here you can see how my location looks like on the GPS screen. The blue flag is the last waypoint received. I did change the scale to a large display so the new waypoint will be distinct from the existing ones. But even if it is not clear enough on screen, find waypoints near current location will give the desired results.

I hope to put the system into use in SAR training with Eagle Valley Search Dogs. The nice thing is that the VX-8R can be used by a person without an Amateur Radio licence as it is a simple remote APRS beacon and I will be its control operator. The person carrying it will not have access to any function other than turning the unit off, if so requested on our SAR network.