Skip to main content

Seagull vs Crab: POTA US-0757 SF Maritime National Historical Park

 A seagull had a delicious crab breakfast, be sure to checkout the video QSL with VE7JYD below for all the details.

Park:

US-0757 San Francisco Maritime National Historic Park

Park:

If I get going early enough in the morning, I get to take the Powell St. cable car to this park. Alas, this particular morning I got a late start so I took the MUNI 30.

Radio Details:

This was one of the first outings with the new Anderson PowerPole connectors inspired by Ham Radio Workbench. They worked well. You can see the rig without the antenna attached below. Note that our antenna is now also color-coded. Frankly? That's a bit too much organization for my taste :)




QSO/RBN spot map:



Happenings of Interest 

Right as VE7JYD called in a seagull started working on its breakfast—a crab—on the beach to the side of the station. 

You can see the video below in the album of recorded QSOs! I've been working on this on and off for the last week or so. I don't know that I'll keep it up because it's kind of time consuming so far. It is helping me catch my copy errors and its also helps for reviewing what happened during the activation, so who knows where I'll ultimately wind up with this. Still, for now it's kinda cool I think!

QSO Video Log



Callsignrx RSTtx RSTTime (GMT)Frequency
w7rta2295992024/12/09 19:00:0014057.4
ke6ivr5595992024/12/09 19:02:0014057.4
nu7z5593292024/12/09 19:07:0014057.4
ni6l5795792024/12/09 19:13:0014057.4
ki6pxv3395992024/12/09 19:14:0014057.4
ko6ghr4495592024/12/09 19:17:0014057.4
al7kc4494292024/12/09 19:19:0014057.4
wa7brl5795392024/12/09 19:20:0014057.4
ab9ca4495792024/12/09 19:22:0014057.4
va7dvo5595592024/12/09 19:24:0014057.4
ve7jyd2295592024/12/09 19:32:0014057.4




Labels:

Comments

Post a Comment

Please leave your comments on this topic:

Popular posts from this blog

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 ...
10 comments
Read more

The Alcubierre Warp Drive Tophat Function and Open Science with Sage

I transferred yesterday's Mathematica file with the Alcubierre warp drive[2] line element and space curvature calculations to the  +Sage Mathematical Software System  today, (the files been  added to the public repository [3]).  If you haven't used Sage before, it's a Python based software package that's similar in functionality to Mathematica.  Oh, and it' free.  I also worked a little more on understanding the theory, but frankly, I made far more progress with the software than the theory.  What follows will be a little more of the Alcubierre theory, plus, a cool Sage interactive demo of one of the Alcubierre functions[1], as well as a bit about my first experience with using Sage. Theory The theory is fun, but it's moving slowly.  Here's the chalk board from this morning's discussion Alcubierre setup the derivation using something called the 3+1 formalism which means we consider space to be flat, (in this case), slices that are labelled ...
3 comments
Read more

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...
1 comment
Read more