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Lakes On The Air?
All: On my web site I asked the question: "Does a group for Lakes On The Air (LOTA) exist?" I got some cute answers, but none that answered what was meant to be a serious question. If it does not exist, I wonder why. With all of the "...OTA's" out these, why not? There would have to be some rules (e.g., the lake must be 100 acres or more, you must operate 50' or less from the water's edge, etc.), but it seems doable. The lake's ID might be its maiden head coordinates. It could be another way to get some hams active again and maybe even draw some new ones in. (If you do a POTA, take a small sign the says something like: "Ham radio in action!". People are interested.) Jack, W8TEE |
Another ID system might be the Lat and Long to 3 decimal places such as?37.315, -79.271 in degrees.? A little longer than Grid location?FM07IH75LO54, but you are able to drop the digits into most any map program and go to the location quickly. Trying to determine?the acreage?of a lake may be the hardest part to see if it meets the criteria. Here is a neat program to deal with location info:?? Pete, W4WWQ On Wed, Nov 30, 2022 at 12:30 PM jjpurdum via <jjpurdum=[email protected]> wrote:
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Pete Lascell Forest, VA |
On Wed, Nov 30, 2022 at 01:59 PM, Peter Lascell wrote:
Just pull out your trusty planimeter, all of the cool kids have them:? Available at a fraction of new cost:??https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2495737.m570.l2632&_nkw=planimeter&_sacat=412 Of course there are online versions:?? 73, Don N2VGU |
I must admit, I've never heard of these until now! Jack, W8TEE
On Wednesday, November 30, 2022 at 03:05:33 PM EST, Donald S Brant Jr <dsbrantjr@...> wrote:
On Wed, Nov 30, 2022 at 01:59 PM, Peter Lascell wrote: Just pull out your trusty planimeter, all of the cool kids have them:? Available at a fraction of new cost:??https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2495737.m570.l2632&_nkw=planimeter&_sacat=412 Of course there are online versions:?? 73, Don N2VGU |
Planimeters have been used in pretty much every area (pun fully intended) of science and engineering for millennia, until CAD came around.? In my case in an earlier career, they were used for calculating the cross-sections of ship hulls at each transverse ※frame§ in naval architecture.? The areas of cross sections for each frame are then multiplied by the distances between frames to calculate the volumes between frames, then those volumes are added to calculate the total volume of a hull. Planimeters can also be used to calculate the longitudinal cross-sections between frames where they*re not rectangular, e.g., toward the bow and stern, or highly hydrodynamically efficient military combatants (especially submarines), racing craft, and so forth. Of course, it*s an approximation, but ※close enough for government work§, as well as commercial shipbuilding, etc.? In fact, it*s a mechanical form of integral calculus for calculating the area under a curve, where???(Greek letter ※del§, lower-case delta,?忖) is the value of the maximum accuracy (minimal incremental value) that the planimeter can measure in distance in a given dimension (similar to how typical slide rules can be used to calculate to about three decimal places of accuracy). ? Jim ?KJ7JHE On Wed, Nov 30, 2022 at 2:08 PM jjpurdum via <jjpurdum=[email protected]> wrote:
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Interesting idea. But why make it so complicated trying figure out area? If the body of water has an official name, this or that lake, then call it a lake, regardless of size. Back east, Midwest, there are BIG lakes. But out here in the west, with a few notable exceptions, lakes tend to be much smaller. Some folks back east might even consider them big ponds. Still, a lake is a lake, if it has an official name. Witness Tea Pot Lake in Utah. Beautiful, but it does not take very long to walk around it. I for one would like to see such a thing as LOTA. Just more fun for everyone. But goodness, who is going to track all that and how? A little beyond my pay grade. I'd like to see more parks too, but it's the same "volume" problem. I'd like to "officially" activate our local "Leslie Groves Park" - https://www.nps.gov/places/leslie-groves-park.htm, a few blocks from my house, in honor of General Leslie R. Groves, the US Army officer in charge of the Manhattan Project during WWII. But it does not make the list. Anyway... Just my 2-cents. Sorry for the bandwidth. 73, Richard AG5M On Wednesday, November 30, 2022, 01:08:03 PM PST, jjpurdum via groups.io <jjpurdum@...> wrote: I must admit, I've never heard of these until now! Jack, W8TEE On Wednesday, November 30, 2022 at 03:05:33 PM EST, Donald S Brant Jr <dsbrantjr@...> wrote: On Wed, Nov 30, 2022 at 01:59 PM, Peter Lascell wrote: Just pull out your trusty planimeter, all of the cool kids have them:? Available at a fraction of new cost:??https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2495737.m570.l2632&_nkw=planimeter&_sacat=412 Of course there are online versions:?? 73, Don N2VGU |
Hi Richard, In order to activate a POTA park, it has to be registered by the regional POTA mapping representative (by state in the U.S.).? In your case?in Washington State, that would be Danny Boyd, KJ7BPN. The list of U.S. mapping representatives is at: and clicking on the U. S. Mapping Representatives menu item (fourth item down) Here*s the contents of entire current list of all U.S. mapping representatives:
Jim ?KJ7JHE On Wed, Nov 30, 2022 at 5:30 PM Richard AG5M via <ag5m=[email protected]> wrote:
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Richard: Perhaps that should be the criteria: If the lake is named on a gov't-issued map, it qualifies. Setting up a database would actually be fairly simple. People who want to add the lake to the DB simply send in the map that names it. There are a number of programs online that interactively give you Lon/Lat on a map, and the approximate center of the lake would have it coordinates enter into the DB. That would grow as the number of people get involved submitting lakes. The real work is keeping track of who worked which lake. It's very doable, but a lot of work after the DB is built. Jack, W8TEE
On Wednesday, November 30, 2022 at 07:30:09 PM EST, Richard AG5M via groups.io <ag5m@...> wrote:
Interesting idea. But why make it so complicated trying figure out area? If the body of water has an official name, this or that lake, then call it a lake, regardless of size. Back east, Midwest, there are BIG lakes. But out here in the west, with a few notable exceptions, lakes tend to be much smaller. Some folks back east might even consider them big ponds. Still, a lake is a lake, if it has an official name. Witness Tea Pot Lake in Utah. Beautiful, but it does not take very long to walk around it. I for one would like to see such a thing as LOTA. Just more fun for everyone. But goodness, who is going to track all that and how? A little beyond my pay grade. I'd like to see more parks too, but it's the same "volume" problem. I'd like to "officially" activate our local "Leslie Groves Park" - https://www.nps.gov/places/leslie-groves-park.htm, a few blocks from my house, in honor of General Leslie R. Groves, the US Army officer in charge of the Manhattan Project during WWII. But it does not make the list. Anyway... Just my 2-cents. Sorry for the bandwidth. 73, Richard AG5M On Wednesday, November 30, 2022, 01:08:03 PM PST, jjpurdum via groups.io <jjpurdum@...> wrote: I must admit, I've never heard of these until now! Jack, W8TEE On Wednesday, November 30, 2022 at 03:05:33 PM EST, Donald S Brant Jr <dsbrantjr@...> wrote: On Wed, Nov 30, 2022 at 01:59 PM, Peter Lascell wrote: Just pull out your trusty planimeter, all of the cool kids have them:? Available at a fraction of new cost:??https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2495737.m570.l2632&_nkw=planimeter&_sacat=412 Of course there are online versions:?? 73, Don N2VGU |
Jack
There are lots of places around without lake, particularly if we limit ourselves to natural lakes. I am thinking zero here in Maryland, perhaps also zero natural lakes in nearby states. Oh many man-made ones, now how to define them as many of these have at least one stream inlet and outlet. Okay there are places without summits, but here in US most states have them. Oh one needs a boat, plus a rig to do LOTA. A bit easier to activate a park.? Curt |
羲堁极郤Why would you limit operating 50 foot from the lake as a
Criteria?? I live on Lake Livingston in Texas which has 450 miles
of shore line.? My house is set back approximately 250 foot from
the waters edge.? In my estimation, 50 foot would disqualify MANY
home stations that are actually lake property.? I have friends
that have lake property and their houses? are set back around 400
foot from the lake.? 50 foot would require operating outside the
home.? In Texas things get HOT most of the year.? We live in air
conditioning almost all the time.?? In my estimation, operating 50
foot from the waters edge is too limiting.? That's OK for campers
but for those actually living on a lake the idea is too
restrictive.? (Maybe some feel 50 foot is too great and you need
to be operating out of a boat in the lake!) Lee, w0vt On 11/30/2022 9:12 PM, jjpurdum via
groups.io wrote:
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[ ?I don*t know if it*s coming out the same on non-GMail e-mail clients, but the contents of my replies are substituted by ellipses (#) unless you know to click on them to expand the contents to be able to see them.? I*m attempting to resend the contents without the ellipses, both in non-indented as well as indented formats.? I have no idea what it will look like until after it*s sent, so please ignore this if you*ve already been able to read it. ] Hi Richard, In order to activate a POTA park, it has to be registered by the regional POTA mapping representative (by state in the U.S.).? In your case?in Washington State, that would be Danny Boyd, KJ7BPN. The list of U.S. mapping representatives is at: ?and clicking on the U. S. Mapping Representatives menu item (fourth item down) Here*s the contents of entire current list of all U.S. mapping representatives:
Jim ?KJ7JHE
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羲堁极郤Mind is wandering here..... get away from OTA and got to HOTW ※Ham On The Water§, ?that way some of the larger rivers could also be used..... thinking Mississippi, Missouri, Ohio, Connecticut and so many others, as long as you*re 50ft from shore, you*re in.....?HI. The numerical listing would be enormous using the 2 letter state and a sequential number. ?The body of water would have to be ※officially named§ and a number associated with it. ?I would think that each state would have a database of waterways that could be downloaded and assigned a sequential number using a spreadsheet. Those in the North Country could use the Winter Season to access the water without a boat otherwise one would require a watercraft of some sort in addition to a QCX-Mini and small loop ? Sounds like a plan to me Jack ! John KK4ITX? Visit: ?. ? ? On Nov 30, 2022, at 22:12, jjpurdum via <jjpurdum@...> wrote:
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Curt: I didn't limit it to natural lakes...there are none in Ohio. However, we have a boatload of man-made lakes that are on gov't maps. There are lots of places in the US where I would think SOTA would be difficult (Kansas, Nebraska ??), but that's no reason to nix SOTA activation for hams in those states. Also, I did not suggest using a boat. Indeed, in my initial post I suggested operating within 50' of the lake, or some reasonable distance from the shoreline. As to the rig, I would think a LOTA activation would be easier than a SOTA activation. Some lakes have boat launching ramps, so you could drive your car to the ramp and operate from the comfort of your car if you want to. Such an activation would be as easy as a POTA activation. If the only rig you have is a 1500W xcvr, LOTA would be difficult. But, since you're on the QRP Labs site, you probably have one of Hans QCX family, so rig constraints are probably minimal. Jack, W8TEE
On Wednesday, November 30, 2022 at 10:39:33 PM EST, Curt wb8yyy via groups.io <wb8yyy@...> wrote:
Jack There are lots of places around without lake, particularly if we limit ourselves to natural lakes. I am thinking zero here in Maryland, perhaps also zero natural lakes in nearby states. Oh many man-made ones, now how to define them as many of these have at least one stream inlet and outlet. Okay there are places without summits, but here in US most states have them. Oh one needs a boat, plus a rig to do LOTA. A bit easier to activate a park.? Curt |
Oh, come on, Lee. POTA, SOTA, and IOTA all expect you to leave your house. How hard is it to walk 201' from your house and operate your QCX? If things are that hot in TX most of the year, do a LOTA sometime during the rest of the year. If you can't leave your house and air conditioning, then don't do a LOTA. Jack, W8TEE
On Wednesday, November 30, 2022 at 10:43:30 PM EST, Leland L. Bahr <w5drc@...> wrote:
Why would you limit operating 50 foot from the lake as a
Criteria?? I live on Lake Livingston in Texas which has 450 miles
of shore line.? My house is set back approximately 250 foot from
the waters edge.? In my estimation, 50 foot would disqualify MANY
home stations that are actually lake property.? I have friends
that have lake property and their houses? are set back around 400
foot from the lake.? 50 foot would require operating outside the
home.? In Texas things get HOT most of the year.? We live in air
conditioning almost all the time.?? In my estimation, operating 50
foot from the waters edge is too limiting.? That's OK for campers
but for those actually living on a lake the idea is too
restrictive.? (Maybe some feel 50 foot is too great and you need
to be operating out of a boat in the lake!) Lee, w0vt On 11/30/2022 9:12 PM, jjpurdum via
groups.io wrote:
Richard:
Perhaps that should be the
criteria: If the lake is named on a gov't-issued map, it
qualifies. Setting up a database would actually be fairly
simple. People who want to add the lake to the DB simply send
in the map that names it. There are a number of programs
online that interactively give you Lon/Lat on a map, and the
approximate center of the lake would have it coordinates enter
into the DB. That would grow as the number of people get
involved submitting lakes. The real work is keeping track of
who worked which lake. It's very doable, but a lot of work
after the DB is built.
Jack, W8TEE
On Wednesday, November 30, 2022 at 07:30:09 PM EST,
Richard AG5M via groups.io <ag5m@...>
wrote:
Interesting idea. But why make it so complicated trying figure out area? If the body of water has an official name, this or that lake, then call it a lake, regardless of size. Back east, Midwest, there are BIG lakes. But out here in the west, with a few notable exceptions, lakes tend to be much smaller. Some folks back east might even consider them big ponds. Still, a lake is a lake, if it has an official name. Witness Tea Pot Lake in Utah. Beautiful, but it does not take very long to walk around it. I for one would like to see such a thing as LOTA. Just more fun for everyone. But goodness, who is going to track all that and how? A little beyond my pay grade. I'd like to see more parks too, but it's the same "volume" problem. I'd like to "officially" activate our local "Leslie Groves Park" - , a few blocks from my house, in honor of General Leslie R. Groves, the US Army officer in charge of the Manhattan Project during WWII. But it does not make the list. Anyway... Just my 2-cents. Sorry for the bandwidth. 73, Richard AG5M On Wednesday, November 30, 2022, 01:08:03 PM
PST, jjpurdum via groups.io
<jjpurdum@...> wrote:
I must admit, I've never
heard of these until now!
Jack, W8TEE
On Wednesday, November 30, 2022 at
03:05:33 PM EST, Donald S Brant Jr
<dsbrantjr@...> wrote:
On Wed, Nov 30, 2022 at 01:59 PM,
Peter Lascell wrote:
Just pull out your trusty planimeter, all of the cool kids have them:? Available at a fraction of new cost:?? Of course there are online versions:?? 73, Don N2VGU |
[ Here*s another attempt at a reply, since the test resend resulted in the same ellipses-content-hiding behavior.? This time, I*m only sending the contents without any of the reply-formatting text. ] Hi Richard, In order to activate a POTA park, it has to be registered by the regional POTA mapping representative (by state in the U.S.).? In your case?in Washington State, that would be Danny Boyd, KJ7BPN. The list of U.S. mapping representatives is at: ?and clicking on the U. S. Mapping Representatives menu item (fourth item down) Here*s the contents of entire current list of all U.S. mapping representatives:
Jim ?KJ7JHE |
toggle quoted message
Show quoted text
On Nov 30, 2022, at 22:56, KK4ITX John via groups.io <jleahy00@...> wrote:
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On 30 Nov 2022 at 21:43, Leland L. Bahr wrote:
In Texas things get HOT most of theSo nobody operates POTA outdoors in Texas? Part of the idea of all these -OTA awards is to get us hams OFF OUR COZY DUFFS and out into the fresh air, and to show off ham radio in public places. |
[ The second resend attempt failed with the same ellipses-contents-hiding behavior.? It occurred to me that it might be due to my siggy including the Morse animated GIF for 73.? So, here*s yet-another resend attempt with the AGIF, as well as the reply-formatting text, removed. I did just see that you were able to read my reply, Richard, so this is now A Quest to Debug Google # yeah, I know, good luck, since all bugs they generate are ※features§. ? Thanks for bearing with me to anyone inconvenienced. ] Hi Richard, In order to activate a POTA park, it has to be registered by the regional POTA mapping representative (by state in the U.S.).? In your case?in Washington State, that would be Danny Boyd, KJ7BPN. The list of U.S. mapping representatives is at: ?and clicking on the U. S. Mapping Representatives menu item (fourth item down) Here*s the contents of entire current list of all U.S. mapping representatives:
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