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raouljan

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Posts posted by raouljan

    Plastic Ammo Boxes?

    in General geocaching topics

    Posted

    I read the question differently. Are you asking about the plastic commercial version of the ammo can, or the military plastic ammo can?

    hummmm....

     

    What I think I am looking for is a box that looks, tastes, smells and acts like the good 'ol 7.62 ammo can, but made out of plastic.

     

    Needs to be as water-tight as the steel version.

     

    Thanks for all the responses.

    External Antennas And Geocaching

    in GPS technology and devices

    Posted

    Since a GPSr is a radio receiver, the general rule "the more antenna, the better" applies. You are going to get a couple of benefits from an external...

    1. A powered antenna will give you greater gain .. thus better reception

    2. The 60CS has a quad-helix, so you must hold it in the vertical position for the best reception, the external antenna removes this requirement

    3. Your signal strength will remain the same as you move the GPSr around, put it in you pocket, take it back out...etc.

     

    The down side is that you now have a cable hanging off the GPSr which will, as all dangling cables do, catch on everything. Also, as an externally powered device it is gong to cut into your battery life.

     

    As for tree cover, I think it is safe to say that the external will out perform the internal. By how much? Good question.

     

    As to position of the antenna, remember it must be "flat" so on your lapel is not the best place. One of the best ideas I have heard is to place it on top of your hat and use a largish metal washer on the inside of the hat for something for the magnet to grip. I have also seen them glued to the top of bicycle helmets.

    73

    in Ham Radio

    Posted

    From

    http://www.ac6v.com/73.htm#73

     

     

    The following is from Louise Ramsey Moreau, W3WRE: "The traditional expression "73" goes right back to the beginning of the landline telegraph days. It is found in some of the earliest editions of the numerical codes, each with a different definition, but each with the same idea in mind - it indicated that the end, or signature, was coming up. But there are no data to prove that any of these were used.

     

    "The first authentic use of 73 is in the publication The National Telegraphic Review and Operators' Guide, first published in April 1857. At that time, 73 meant "My love to you"! Succeeding issues of this publication continued to use this definition of the term. Curiously enough, some of the other numerals used then had the same definition as they have now, but within a short time, the use of 73 began to change. "In the National Telegraph Convention, the numeral was changed from the Valentine-type sentiment to a vague sign of fraternalism. Here, 73 was a greeting, a friendly "word" between operators and it was so used on all wires.

     

    "In 1859, the Western Union Company set up the standard "92 Code." A list of numerals from one to 92 was compiled to indicate a series of prepared phrases for use by the operators on the wires. Here, in the 92 Code, 73 changes from a fraternal sign to a very flowery "accept my compliments,"which was in keeping with the florid language of that era. "Over the years from 1859 to 1900, the many manuals of telegraphy show variations of this meaning. Dodge's The Telegraph Instructor shows it merely as "compliments." The Twentieth Century Manual of Railways and Commercial Telegraphy defines it two ways, one listing as "my compliments to you"; but in the glossary of abbreviations it is merely "compliments."

     

    Theodore A. Edison's Telegraphy Self-Taught shows a return of "accept my compliments." By 1908, however, a later edition of the Dodge Manual gives us today's definition of "best regards" with a backward look at the oldermeaning in another part of the work where it also lists it as "compliments."

     

    "Best regards" has remained ever since as the "put-it-down-in-black-and-white" meaning of 73 but it has acquired overtones of much warmer meaning. Today, amateurs use it more in the manner that James Reid had intended that it be used - a "friendly word between operators." I hope that this helps you in some way....

    Lost Satilites & Off The Road

    in GPS technology and devices

    Posted

    The Garmin (and TOPO!) topo maps for AZ are not all that great. Double that if you are on secondary roads.

     

    Sunset Volcano National Monument is a known alian visitation site. This pretty much trashed GPS reception while they are in town.

     

    As for Sedona, perhaps the Vortex gave you a hand.

     

    (just kidding on #2 and #3 I was using my GPS at about 5P in the Verde Valley and had great reception)

     

    Saw your log on my Somthing Fishy. Hope you enjoyed your visit to our state!

    Garmin Gpsmap 76s

    in GPS technology and devices

    Posted

    The 76s needs to be pointed up because it has a quad-helix antenna. The quad-helix antenna gives better reception in marginal areas. It is a bit of a hassle to have to rotate the unit up for GPS and flat for the compas.

     

    I like the 76s because of its large display. Very easy to read.

     

    I don't find the memory to be that limiting. I can get all the topos for northern Arizona in there .. and that is more than enough for most of my purposes. When I do river trips I can get all the segments that cover the river into the box.

     

    Very rugged unit. Floats. etc. You can do a lot worse than the 76s.

    Find Altitude From Lat / Long

    in GPS technology and devices

    Posted

    Possibly thousands....

     

    I am attempting to build a hydrologic gradient map from the well logs supplied to the state. The well logs provide Lat and Long, and depth to water.

     

    To build the gradient map I need to apply the altitude of the well .. which is not supplied in the well logs.

     

    I had though to suck the well logs into a database application, assign a waypoint and then import the list into TOPO! to get the altitude .. but that does not appear to work.

    Find Altitude From Lat / Long

    in GPS technology and devices

    Posted

    Does anyone know of an application that can find the altitude for a given Lat / Long?

     

    I have tried using TOPO! since it seems to know the altitude of a given point, but when I import a list of points with the altitude nulled out the software flags it as being "unavailable" as opposed to filling it in.

     

    Any help appreciated!

    SET 2003 and a GPS story

    in Ham Radio

    Posted

    yes ... I used to be a OES and run a "pocket" packet station using a handheld, a HP PalmTop and a Tiger TNC. The whole package find in a pocket and ran about two days off a motorcycle battery.

     

    Packet is a bit wierd at first, but once you get used to it, it's a gas.

     

    I used to live outside Colorado Springs and we had a repeater on top of Pike's Peak .. ain't nothing in the world like having a 14,000 ft antenna!

     

    Since moving to Arizona my HAM activity has been kinda low.

     

    '73 - de KX0ZPA

     

    >Personally Responsible for the Recovery of .00244% of the Benchmark Database!<--watch this number!

    Unlisted mark

    in Benchmarking

    Posted

    I think you are making the classic mistake of finding a benchmark and then trying to locate it in the database .. not all the markers out there are in our version of the database..

     

    These co-ords find two markers in the NGS database;

    http://www.ngs.noaa.gov/cgi-bin/datasheet.prl

     

    1.) KW0685_MARKER: DB = BENCH MARK DISK

    KW0685_STAMPING: B 171 1942

    and

    2.) AB6508_MARKER: X = CHISELED CROSS

     

    Either of these fit the marker?

     

    >Personally Responsible for the Recovery of .00244% of the Benchmark Database!<--watch this number!

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