Skip to main content

Ham Radio, Unschooilng, and Interests... So Many Interests

 Here's how it all starte.d This morning, I trudged out to the park with the little RockMite radio (a single frequency ham radio transciever that oerpates at 14.0577 MHz, we'll get to how I can be that certain soon), and started plunking out Morse code in hopes of reaching someone else on the same band. The view was gorgeous, and before too, too long, I made the second contact I'm made in over a decade with WKJ7LVZ in Moab, UT! All of that was great! Also, the scenery over the antenna was pretty gorgeous.


And here's where the unschooling interests start. First, the kids help me setup the antenna sometimes. They're aware that it's a half-wavelength dipole They've worked with waves both in Physics and electronics because of my partner and I. At the moment, they're learning Morse code. So, they're getting all the peripheral stuff you might expect from ham radio.

Guess what else though?They're fascinated by the distances to the stations Icontact, and that we can hear on the little rig. Consequently, we're doing a fair amount of geography every day.

And there's more. Today, for the first time ever, a reverse beacon network station picked up the Rockmite, and that station was in Canada! First off, the Rockmite signal had reached out over 1,000 miles. Second? Looking at the path on the map, 




I realized that it was along the grey line at the time of morning the signal was hear. Now, the kids and Iget to talk about grey lines, (the line on the Earth between night and day. We get to talk about radio propagation modes. We also get to talk about GIS software systems. 

The little radio has a single transitor output amplifier. We can talk about that when they get to transistors. The code keyer that's buit-in is an embedded microcontroller. There's a whole other branch of study.

This one little thing is giving so much, and it's something Ijust happened to be interestsed in anyway. Will the kids be intersted in all of this? Probably not, but Ialready know they're interested in some of it, and that's enough!

Do you need to be into amateur radio for this kind of network of interests to pop up? Nope. The same thing happens to us with art, (which Iknow from little to nothing about), and other things as well. One thing just leads to another.



Comments

Popular posts from this blog

The Valentine's Day Magnetic Monopole

There's an assymetry to the form of the two Maxwell's equations shown in picture 1.  While the divergence of the electric field is proportional to the electric charge density at a given point, the divergence of the magnetic field is equal to zero.  This is typically explained in the following way.  While we know that electrons, the fundamental electric charge carriers exist, evidence seems to indicate that magnetic monopoles, the particles that would carry magnetic 'charge', either don't exist, or, the energies required to create them are so high that they are exceedingly rare.  That doesn't stop us from looking for them though! Keeping with the theme of Fairbank[1] and his academic progeny over the semester break, today's post is about the discovery of a magnetic monopole candidate event by one of the Fairbank's graduate students, Blas Cabrera[2].  Cabrera was utilizing a loop type of magnetic monopole detector.  Its operation is in concept very sim

Cool Math Tricks: Deriving the Divergence, (Del or Nabla) into New (Cylindrical) Coordinate Systems

Now available as a Kindle ebook for 99 cents ! Get a spiffy ebook, and fund more physics The following is a pretty lengthy procedure, but converting the divergence, (nabla, del) operator between coordinate systems comes up pretty often. While there are tables for converting between common coordinate systems , there seem to be fewer explanations of the procedure for deriving the conversion, so here goes! What do we actually want? To convert the Cartesian nabla to the nabla for another coordinate system, say… cylindrical coordinates. What we’ll need: 1. The Cartesian Nabla: 2. A set of equations relating the Cartesian coordinates to cylindrical coordinates: 3. A set of equations relating the Cartesian basis vectors to the basis vectors of the new coordinate system: How to do it: Use the chain rule for differentiation to convert the derivatives with respect to the Cartesian variables to derivatives with respect to the cylindrical variables. The chain

More Cowbell! Record Production using Google Forms and Charts

First, the what : This article shows how to embed a new Google Form into any web page. To demonstrate ths, a chart and form that allow blog readers to control the recording levels of each instrument in Blue Oyster Cult's "(Don't Fear) The Reaper" is used. HTML code from the Google version of the form included on this page is shown and the parts that need to be modified are highlighted. Next, the why : Google recently released an e-mail form feature that allows users of Google Documents to create an e-mail a form that automatically places each user's input into an associated spreadsheet. As it turns out, with a little bit of work, the forms that are created by Google Docs can be embedded into any web page. Now, The Goods: Click on the instrument you want turned up, click the submit button and then refresh the page. Through the magic of Google Forms as soon as you click on submit and refresh this web page, the data chart will update immediately. Turn up the: