What The Heck!! Winter Storm Uri is what.

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This was the view on Monday February 15th at about 9:30 AM from near the front of our property by my mother-in-laws house. The antenna you see is on top of Polly’s Peak near Bandera, Texas. The tower and the guy wires were coated in ice. The top of the tower is about 2300′ MSL (above Mean Sea Level). How pretty but also how bad. We were without electricity and without water because we are on a well with an electric pump. I am just getting my blog back up this Thursday evening because the cold caused something in the power supply for the computer I host this on to not start up. I have finally rejoined the Blog-O-Sphere after 4 days down.

Picture of snowfall at about 09:30 PM near Bandera,  Texas on February 14th.
Saturday night snowfall

This was the view the about 12 hours earlier on the night of St. Valentine’s Day from our front porch. As forecast (hey the got it right for once), the snow started about 09:00 PM. It had already been a cold and icy day from low temperatures and freezing mist so I knew the snow would stick.

I had awakened a couple of times through the night because I was worried about the power but it was still on. When I woke up and noticed the power off it was about 06:00 AM. Because of where we live here in the Texas Hill Country the cell service is poor so I went to the south facing windows in our breakfast room to call Bandera Electric Co-op (BEC) to report the outage. It must have been wide spread as I had to try a number of times on hold for about 10 minutes a time to eventually get bumped off. My wife was finally able to get to the automated message as her phone number is associated with our account. Initial bad news was that electricity would not be on till about 12:00 PM.

While I was waiting on the second try to get BEC, I had the most interesting experience. Traveling across the near dawn sky from northwest to southeast was a stream of lights. Based on other things I have seen in the past and some photos, this traveling string of lights must have been the February 4th launch of SpaceX Starlink satellites. Mrs. BillB can confirm this is real and not a figment of my imagination as she saw it too.

Snow in front yard on morning of February 15th.
The front yard from about where the previous night’s photo was taken.
Snow on the table on our back deck.

The two pictures above are what we saw shortly after sunrise on the 15th. There was about 5 inches of snow based on what was on the table top. Our almost two year old Catahoula mix dog was let out on the the back porch which exit to the deck above and started barking at the snow as she had never before seen such a sight. She has in the following days developed a liking of snow while she chases the tree-rats (squirrels) from our back yard.

Amazingly the power came on for about 15 minutes shortly after 09:00 AM. But then dropped off. My wife called and we found out that now power would not be restored until 05:30 PM. I was out checking on my mother-in-law (MiL) who lives about 100 yards from us when I took the picture at the top of this post.

Finally I got our new 8 Kilowatt generator hooked up and powering part of our electrics so that we could use our well and have heat from our propane backup/2nd stage heat portion of our heat pump. But we still didn’t have water in most of our house. I first assumed that our well house froze up because the electricity was out but found out that my MiL had water. The builders here in South Central Texas run the PEX piping for water supply through the attic; and even though it is close to the ceiling, the pipes had frozen. We did have a couple of our reverse osmosis system taps available but the rest were all frozen. Yep, no toilets would flush more than once. From my understanding PEX is very resilient when frozen and does not tend to break/split.

The MiL did come down and spend Monday night with us. We were able to cook a little dinner as we have a propane cooktop and had a warm evening. Power was back about 05:00 PM and I disconnected the generator. However there were the rolling outages/blackouts dictated by Energy Reliability Counsel of Texas (ERCOT). Power would be on about an hour and off about 30 minutes. But when power was on the heat ran and we were able to stay warm.

On Tuesday the rolling blackouts continued until right around Noon. The power came back on continuous for us about that time but there seems to be the rolling blackouts elsewhere. I suspect this is because the County ambulance service is in the same district we are in. By nightfall we got back most of the water in our house. The last few things defrosted on Wednesday when temperatures went above 400 F. The freezing pipes are a design issues and I am going to contact the builder as our house is only about 2 1/2 years old.

The politics going on about the issues caused by this rare deep freeze in Texas and other places are at the least aggravating me. The Leftist yahoos in Washington D.C. are blaming it on Texas not having enough “green”, “renewable” energy sources since we didn’t vote for them and to be truthful don believe in a lot of their rubish. The massive wind turbine farms in Texas were at a near standstill in this mess because of the cold. The solar farms were at low or no output due to cloud cover and snow covering them. And neither have reserve storage capability, i.e. battery storage. And the jerks in Washington D.C. with their EPA did not allow during the Obama mis-administration and will not allow with the current illegitimate administration clean coal and natural gas back-up capacity to be added. And the Greenies who seem to drive the Democrat Party are so against any form of Nuclear Energy that those sources will never be available. Nuclear Fusion should be in the forefront of the clean energy drive; if it can be brought to practicality, it will solve the imagined CO2 issue with very little radioactive waste and no chance of a nuclear explosion or melt down . The one thing I am glad of is that the Texas power grid is generally independent from the rest of the Nation and we don’t have to generate power for states like California and New York with their overall poor power management.

Enough for now. I did make some progress on my satellite antenna situation which I will post later.

BillB

Buildin’ Antennas – Antennas for Amateur Satellites PART 1

Last year (2020) in June, I purchased an ICOM IC-9700 VHF\UHF radio after working at a big box home improvement store for a few months. Initially it wasn’t supposed to arrive until mid July but then I got notice that it would arrive before ARRL Field Day

I hurriedly tried to build a 2 meter and 70 cm antenna system for satellite communications to make contacts during the ARRL Field Day event. I choose to build a pair of crossed Moxon antennas as described by L. B. Cebik, W4RNL(SK), in the article A Simple Fixed Antenna for VHF/UHF Satellite Work in the August 2001 QST. There is a follow up article Regarding “A Simple Fixed Antenna for VHF/UHF Satellite Work” (Technical Correspondence) in the October 2001 QST. Note that the links are to the ARRL QST Archives and you must be an ARRL member to access them; however, I have found the articles elsewhere on the Internet. I had already chosen to build these antennas before I got my new radio as the antenna system offered approximately the same performance as turnstile antennas but without the large ground planes involved. I also believe that they offer the same performance as “Eggbeater” antennas.

My 2 meter antenna was made from 1/4 inch aluminum rod from the hardware store. I thread the connection ends of the driven elements with 1/4-20 threads and used 1/4-20 hardware to install them. The 70 cm antenna was made from 12 gauge solid copper wire. I tried to use 3/32 aluminum welding rod but to my dismay and misunderstanding, you cannot thread the welding rod with 2-56 threads; you need 3-56 threads on the aluminum rod. I have to give a hat-tip to The Silicon Graybeard for pointing this out and informing me that the 12 gauge wire would work with a 2-56 thread. Threading the copper wire is a departure from the design in the article but with work hardening of the copper, it works.

In my hurry to build them, I first misinterpreted the impedance transformer section. A single Moxon antenna presents a 50 ohm impedance . When crossed per the article with a 1/4 wave phasing line, the feed point impedance of the array is 25 ohms (two antennas in parallel). You need to transform this up to 50 ohms for the normally used types of coax. Not carefully reading the article, I first thought that you used a single 1/4 wave section of 75 ohm coax to effect this transformation based on the following diagram:

Boy was I wrong! I had built both the 2 meter and 70 cm antennas with phasing sections and impedance transformers, the connecting coaxes, and gotten them up on a PVC pipe mount. When I applied power the SWRs were UGLY to say the least.

So I went back and reread the article to find out that I should have built the impedance transformers out of parallel sections of 75 ohm cable to create a 37.5 ohm transmission line transformer. So I went back and rebuilt the impedance transformers and installed them. I also got smart and pulled out my nanoVNA (Vector Network Analyzer) to check the fitness of the antennas with the new impedance transformers. Woops! The SWR was still UGLY but not quite as bad. However, there were weird things going on. I posted about this in this thread in the Technical Forums on QRZ.com, Cebik’s crossed Moxon antennas for satellite . That thread has more detail about what I was going through and did in that time period plus some pictures of my antennas. But to sum it all up, I still was not where I wanted to be or needed to be.

I did contact a fellow amateur operator who is truly an antenna expert. He worked for a nationally known development facility doing amongst other things antenna design and currently teaches some folks in the military about antennas. He suggested a different approach to the coax harnesses which I am going to employ on the 2 meter antenna.

For the 70 cm antenna, I am going to use a slightly different design by L. B. Cebik.

I will be back with further adventures in this current antenna project in another installment as I think I have rambled enough here.

SpaceX Starship SN9 May Launch Today! (It did but ….)

UPDATE: SN9 did launch today. It made it all the way to the landing flip where one engine did not ignite properly. The rocket over rotated as it appears that the single engine could not correct the rotation. It crashed almost on its side. When SpaceX or someone puts up video of the flight I will add it to this post.

I have a couple of live stream websites up on my computer and am watching for the launch. It seems that SpaceX has overcome the hurdles that the FAA put in front of them. It is a beautiful day in the farthest of South Texas and great for a test flight. I am hoping that it all goes well and they stick the landing today. SpaceX will live stream the launch once again and it will probably be the best view in the “house”.

Here is a screen capture from LabPadre. SN9 is on the right with its fins extended. Go to LabPadre’s YouTube channel and select the Nerdle Cam to watch the preliminaries.

SpaceX Starship SN9 in preparation for launch with its fins extended.  Also picture are Starship SN10, Test Article SN7.2, and Starship Hopper.