San Bruno Mountain Intro to SOTA: W6/CC-072 de KD0FNR

I continued my recent trend of ham radio in atomospheric rivers at the San Bruno Mountain summit. It was my first SOTA.

Park:

San Bruno Mountain State Park W6/CC-072, K-1196

I climbed the mountain from the South San Francisco Side. I took BART to South San Francisco station, and then took the free blue circulator bus from there to the Chestnut and Hillside stop. The climb was very reasonable. There was a well worn trail the entire way. It would have been a bit more pleasant without the rain, but then in March and early April here in San Francisco, I wouldn't have done much of anything if I'd waited for the rain to stop.

Radio Details:

The antenna setup worked amazingly well! With the lack of trees, and the driving, nonstop rain storm going on, I just laid the antenna across two bushes, held the radio in my hand, and hoped for the best. And it worked!!!

QSO/RBN spot map:

Happenings of Interest

It was wet! I didn't expect to make any QSOs with the bush-born antenna, but made three in the end!

QSO Log

Callsign	rx RST	tx RST	Time (GMT)	Frequency
K6CC	559	559	00:00	14058.3
KJ7DT	559	559	00:00	14058.3
K6EL	559	559	00:00	14058.3

POTA tx QSL:

QSL rx album:

References

SOTA

Comments

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:

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

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

Copasetic Flow

Search This Blog