Cap'n Bob & the Damsel

Technobabble

Starlink Mini Performance Report

We live in sort of a low hollow area in our semi-rural desert home with rising terrain to the north and a couple of places towards the southwest. Even under conditions of placing the Starlink Mini dish on the roof of the house, we would have a limited view of the sky. That being said, I did not want to climb up on the roof to put the dish up there, so I placed it on the spa in the Arizona Room (screened-in patio) by the RV Drive behind the house. Due to the limited sky view from the patio, the Starlink App reports the following 3-D graphic of the obstructions the unit “sees.”

The “dish,” in reality, is a planar phased array antenna which scans the sky for satellite signals and plots the areas blocked by obstructions. The App admonishes that the map of obstructions is collected over several hours and should be stable-ish after a while. The map shown has been integrated over the last day or so with the current antenna placement. Blue equals clear sky shot and red is obstructed. The white square is the antenna. I estimate clear sky to be no more than 35-40 percent of the dome. Regardless of the overwhelming obstructions, the system can deliver the performance seen in the OOKLA download rate seen below.

That rate is sufficient to do most internet streaming services, but may not perform as well for interactive gaming or other similar stuff for which we have no need. There is a caveat on the megabit performance shown; the satellite constellation is on the move and the performance (rate) may suffer as things go in and out of range, so some buffering (delays) may be possible.

Another note of interest: during the past few weeks, our Cox Internet Cable has gone down for several hours at a time. With the (approximate) setup shown in the top image, we continued internet service in spite of the outages on the cable.

We should do OK on the road with all of our internet needs as we take off for a nice long RV excursion in a few weeks.

This is not a paid plug, but I notice that the Starlink Mini is on sale for 40 percent off or so ($299 vs $499).

17 May 2025 by Aerospace Cyberspace Notions Rocket Science Technobabble

Light Pollution in the Southwest

For those of us who are stargazers that love to look up at night, one of our primary concerns is anthropogenic illumination, a.k.a Light Pollution. Damsel and I remember one night in southwestern Utah at Zion National Park when we looked up to see so many stars that it was difficult to discern any of the major constellations since the sky was virtually filled with visible stars. Zion is remote enough that lights from major population areas are far over the horizon, thus providing a memorable and overwhelming view of the stars and galaxies in God’s wonderful universe.

Here in Wickenburg, we have fairly dark skies, but depending upon the time of night, we still have a little light pollution that interferes with our stargazing. However, just sixty miles southeast of here is the giant megalopolis of Phoenix and surrounding cities that don’t give a hoot about dark skies. As a result of that, our views in the direction of the Valley are clouded by that massive amount of candlepower.

Referring to the image above, Wickenburg is in the approximate center of the image on the border of Maricopa (south) and Yavapai (north) counties — you can see our little light blob just at the west end of the “notch” in the north side of Maricopa County. The giant light blob to the southeast of our town is the afore-mentioned megalopolis. You can see how their pollution might affect the dark skies of our area.

About the images on this page: due to a fluke in the GOES Southwest USA Imagery, I captured these nighttime images without the normally present clouds and other observed phenomena. These are the pre-programmed night images sans the clouds. The image at the top is cropped to show our area while the image below is the entire background for the GOES Southern Rockies nighttime view. Click on either image to enlarge; use the scroll bars to navigate the large image below.

Complete No Weather Southern Rockies GOES image:

09 Apr 2025 by Arizona Astronomy Technobabble

New RV Internet Solution

Since our last RV excursion in April of 2024 to view the total eclipse of the sun, there were some lessons learned regarding internet connections and reliability during the trip. We were never completely without internet service most of the time, but there were places where our usual access via campground WIFI or the Samsung hotspot were spotty, unreliable, bandwidth limited and/or just plain awful. These conditions were, to say the least, frustrating to us who depend on our internet access for:

  • entertainment
  • campground reservations
  • financial access
  • email
  • social media
  • VOIP telephone access

We needed something better.

Enter the new solution to the problems: Starlink Mini. Our package arrived today and within an hour after unboxing the system, we were on the satellite network with speeds of around 100Mb/sec. Good enough for each of the enumerated tasks above.

The mini unit is shown in the (clickable) photo below perched on the outdoor grill behind our house. The unit is self-contained and has the built-in Phased Array Antenna, associated electronics and a WIFI to facilitate access to the internet. MADE IN THE USA BY STARLINK!

Starlink Mini Unit

The next (clickable) photo shows the approximate sky view as seen by the mini unit. We live in sort of a low area looking to the north, with part of the sky obscured by rising terrain and structures up there. Regardless, the unit performed very well given the possible obscurations.

Approximate Sky View

A catalyst in our decision to go with Starlink now, was the terrorist attacks on Tesla and other Elon Musk enterprises. We saw this as an opportunity to support SpaceX, Starlink’s parent company, by acquiring this system (in lieu of buying a Tesla) to support Musk, who endures daily threats as he continues to work the new Department of Government Efficiency.

We pray that the loonies doing the terror be found soon and be dealt with appropriately.

22 Mar 2025 by Cyberspace Degenerates Law and Order Notions Technobabble Wanderlust

Moon PI

PI, the ratio of a circle to its diameter is about 3.14 and for some neo-cultural reason we now celebrate “PI Day” on March 14th of each year. Those of us who score very well on the Nerd Test, can appreciate this nerdy quasi-holiday.

As it turns out, we had sort of a coincidence overnight when the Moon became obscured by the Earth’s shadow (umbra). Damsel and I observed the phenomenon after midnight just before hitting the hay.

SpaceWeather.com posted the image below on their website of the Moon, as seen from Earth and the Earth as seen from the Moon during the eclipse. The Blue Ghost lunar lander took the earthward image seen on the right side of the composite image.

Astronomy Picture of the Day posted the explanation that when an eclipse of the Moon occurs the angle between the Sun and the Moon from Earth’s perspective is approximately 3.14 Radians (180°).

Happy Moon PI Day!

14 Mar 2025 by Astronomy Notions Technobabble

Panoramic Images

Panoramic Image of Our House

Earlier this month, I retired my venerable Canon Powershot A710IS Camera and started using my newer Kodak PIXPRO FZ152 Camera. The older camera had roughly 18 years on it and after it got retired, I started using the newer camera. The newer camera, it turns out, had more features that I didn’t know about because I used it so seldom. Lo and behold, there is a “panoramic image” mode.

To make panoramic images using the FZ152, one must select the proper mode and shooting left to right (other direction optional) snap three or four images as you move the camera. There is a “ghost” image of the preceding image that helps the user to align the camera. When done, select the “SET” button and the camera begins to “stitch” the images into a single elongated image — a panoramic image.

I am still learning how to use the panoramic image mode, although some of the image results from following the procedure have been disappointing, with visible disconnects in the continuity of the image. I thought I was using the proper procedure and got the result seen below:

Discontinuity example

As you can see, the right half of the panned image jumps from a place in the middle of the house to repeating (in a distorted fashion) the same image segment going to the right. The image is not useful except to demonstrate the problem.

I guess I am spoiled by having had a really good Canon Utility in the past that would render panoramas from several images with very good results, even with marginally acceptable images. Unfortunately, that utility stopped being supported and did not work with later versions of Windows subsequent to about seven years ago or so.

I will keep trying to get panoramas with the Kodak Camera in the future, but I may opt for a Photoshop ($$$) utility to do the things I used to do with ease and for free with the Cannon App.

25 Feb 2025 by Notions Panorama Photography Technobabble

Spring Song

This 10 second video is of a Curve-Billed Thrasher singing what sounds like a mating call. It’s not the usual loud “weee-weet-tweet” that we hear during other times of the year. Could it be that we’re getting an early spring about four weeks ahead of schedule? The forecast for our part of Arizona calls for 80° temperatures by the weekend.

AS you can see from the video, holding the camera steady at 250mm zoom is difficult without a bi- or tripod. I made this video today with my Canon EOS Rebel SL3 and the EF 55-250mm lens. I am still experimenting with and getting used to making videos with the Canon camera.

19 Feb 2025 by Arizona Critters Notions Photography Technobabble

Christmas 2024

Well, Merry Christmas, everybody! We hope that you all have a blessed Christmas Day and for the year to come, peace and prosperity. In the USA, we expect a much better year to come with the transition to the Trump/MAGA administration.

We are quietly spending Christmas Day here at our desert abode, just the two of us, since closest family is over 300 miles away. We will be talking and/or texting to some of them, however, via the various electronic and social media.

The gaudy animated message above is a product of my digging out some old graphics tools to generate the image. The background is a screenshot from one of those poor You-Tube videos with crappy-sounding Christmas Music, but it looked festive and I used it. The animated part comes from an old application I’ve had for over 20 years.

Notwithstanding the commercial-looking graphic, we still celebrate the Holiday keeping in mind the true meaning of the Nativity of Christ the King.

The Birth of Jesus From Luke 2

And it came to pass in those days, that there went out a decree from Caesar Augustus, that all the world should be taxed. (And this taxing was first made when Cyrenius was governor of Syria.) And all went to be taxed, every one into his own city. And Joseph also went up from Galilee, out of the city of Nazareth, into Judaea, unto the city of David, which is called Bethlehem; (because he was of the house and lineage of David:) To be taxed with Mary his espoused wife, being great with child.

And so it was, that, while they were there, the days were accomplished that she should be delivered. And she brought forth her firstborn son, and wrapped him in swaddling clothes, and laid him in a manger; because there was no room for them in the inn.

And there were in the same country shepherds abiding in the field, keeping watch over their flock by night. And, lo, the angel of the Lord came upon them, and the glory of the Lord shone round about them: and they were sore afraid. And the angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people. For unto you is born this day in the city of David a Saviour, which is Christ the Lord. And this shall be a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger.

And suddenly there was with the angel a multitude of the heavenly host praising God, and saying, Glory to God in the highest, and on earth peace, good will toward men.

And it came to pass, as the angels were gone away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which is come to pass, which the Lord hath made known unto us. And they came with haste, and found Mary, and Joseph, and the babe lying in a manger. And when they had seen it, they made known abroad the saying which was told them concerning this child. And all they that heard it wondered at those things which were told them by the shepherds.

But Mary kept all these things, and pondered them in her heart. And the shepherds returned, glorifying and praising God for all the things that they had heard and seen, as it was told unto them.

May the true Christmas spirit be with us today and always. Amen.

25 Dec 2024 by Holidays Religion Technobabble

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