rsaxvc
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Everything posted by rsaxvc
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I pulled out the voltmeter - I have 5 lines on my 010-11131-00, and I have 4.20 on my GPSMap62S, with the following signals Black - DC supply ground (~0V, all further measurements relative to this one) Red - 13.5 Volts from DC supply Yellow - live, working NMEA data output, 4800 baud, shows as voltage fluctuating voltage Green - serial ground (~0V) White - high impedance(input)
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It does require a 12-24v power for the cable. I'll try and load current software on mine to check. There's also cable #010-10572-00 which should work on Colorado, Oregon 300/400/450/550 and GPSMap62/62S/62ST, but doesn't require power. It may drain your batteries faster though. EDIT: I had the part numbers mixed up. 010-10572-00 doesn't need external power and 010-11131-00 needs external power, but won't run your batteries down.
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Changing Time on Oregon 450 geocache visits.txt
rsaxvc replied to petenjo's topic in GPS technology and devices
I believe those timestamps are all GMT. Your GPSr or any other interface takes into account your actual position and time zone, and converts to local time as needed. If you change all the timestamps in your Geocache Visits log, you may find incorrectly reported time/dates elsewhere. Do you have your Groundspeak timezone set properly? -
Works great on my 78sc.
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Help viewing/loading custom maps on Garmin
rsaxvc replied to hidenseek581's topic in GPS technology and devices
When you save it to JPEG in Gimp, don't check the box marked 'progressive' -
Using Montana/Oregon as a depth finder?
rsaxvc replied to A.T.Hiker's topic in GPS technology and devices
You need a NMEA depth sensor, and a compatible USB<->NMEA Serial cable from Garmin. -
Trip Odometer Discrepancy Etrex (or all Garmin?)
rsaxvc replied to seldom_sn's topic in GPS technology and devices
Have you tried setting the track log recording rate to 1/second and seeing how it matches up? -
Geocaches - http://www.garmindeveloper.com/apps/GarminCustomSymbols/CustomGeocacheList.txt Waypoints - http://www.garmindeveloper.com/apps/GarminCustomSymbols/CustomSymbolList.txt
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I know that several Garmin units support it, I'm not sure offhand if the new eTrexes(10/20/30) do. Do you need actual NMEA0183(which is RS232, voltages range from -15 volts to 15 volts, 4800 baud), or do you just need NMEA sentences connected to your computer through any other method? Different handheld Garmins do it in different ways(many do both). There's Garmin Spanner Mode, which uses a small desktop program to create virtual serial ports that are connected over USB. Have you tried: http://www8.garmin.com/support/download_details.jsp?id=1627 ...or... http://gpsgate.com/download ? Those programs would get you NMEA data from the unit, but with a standard USB cable. The other method that some units support is a special serial cable that actually emits raw RS232 NMEA. These usually take 10->30 volts input, can run the unit, and have full voltage I/O for RS232(not like spanner, which effectively turns the unit into a USB->Serial adapter inside the case). Garmin.com can list what units go with which cable. The GPSMap 78 has a big Garmin serial port (RS232, full voltage, 4-pins(serial in, serial out, power in, ground)). However, it can also do Spanner mode.
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Garmin Montana Screen Calibration Way Off
rsaxvc replied to starbox189's topic in GPS technology and devices
Could it be because filters are stored as files, and those characters cannot be used for filenames? -
It only works while moving.
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I have a Rino 650. It is basically a Dakota + radio + LiIon battery.
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I'd say it is closest to the Dakota. Mine has paperless Geocaching, and Chirp.
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You should be able to copy the IMG file out to the Garmin Folder on the SD card or on the Montana without using MapSource/BaseCamp.
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probably because a file can have multiple items in it.
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??? The SD card is going to be FAT or FAT32. Those file systems do not recognize cases. Am I missing something? The filesystem stores the case, but does not differentiate by it. You can't have a garmin folder and a Garmin folder in the same location, but each will appear differently from the other, and will maintain the upper-case/lower-case 'G'.
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There are separate signals. L1 band contains standard civilian signals, L2 contains both civilian grade and military encrypted signals. You're probably thinking of selective availability, which was a kind of fuzz knob the satellites could turn on - you turn up the knob, civilian GPS fixes get worse, no change to military. They could turn it back on if needed, but aren't building it into block III sats.
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Oregon 450 and City navigator Europe 2010
rsaxvc replied to terratin's topic in GPS technology and devices
Do you have a basemap loaded? If not, zooming too far out will be slow. -
Have you tried 3.63? It seems to work for me.
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How can I make large custom files?
rsaxvc replied to TheArabianHunter's topic in GPS technology and devices
It is per-tile. You can have a whole bunch of tiles in one KMZ. -
GPSMAP 62s Backing up Files
rsaxvc replied to Labrador Wild Man's topic in GPS technology and devices
You can delete it, but it may come back - it is written by the unit when you plug it in -
Some authentication systems require close time sync-up to prevent replay attacks. Occasionally you'll find a GPS puck attached to at least one end as well.
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One of my friends worked installing windmills somewhere in central Kansas - the airplane warning lights are all synchronized, and they did it with the PPS output of a GPS puck on each windmill.
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No... The 20 has a compass as does the 10. The 30's compass is a different style than the other two. The 30 has a 3D compass. The 10/20 use direction of motion.