Speaking of Broadband Mapping

Senate Commerce Chairman Roger Wicker (R-Miss.) teased a forthcoming bill addressing broadband mapping accuracy during Wednesday’s hearing on the topic. “Improving the nation’s broadband maps starts with better coordination and information sharing among federal agencies responsible for administering broadband deployment programs,” Wicker said, stressing the need for coordination among the FCC, NTIA and USDA. “I hope we will soon have legislation.” Existing broadband maps put out by the FCC have been broadly criticized as inaccurate.

Source: POLITICO Morning Tech with a new headline.

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Where is Waldo, er OneWeb 0012?

Russ Steele

Knowing OneWeb LEO satellites are zipping around overhead I often wonder where they are. I found a free app for my iPhone and iPad that lets me track specific satellites in real time. The app is called SatSat, and it runs on both my smartphone and an old iPad. SatSat is satellite tracking software for use by radio amateurs, scientists or hobbyists. It displays current and next passes for any satellites listed in the index. It also provides amateur radio satellite beacons frequencies for radio detection. SatSat automatically fetches updated satellites data.  No public beacon frequencies for OneWeb, just Amateur Satellites.

I have been using SatSat to track OneWeb birds and the SpaceX’s test satellites Tintin A and Tintin B, with the ISS creeping into the target display.

Waltdo
Location of Satellites at about 3:45 PM Pacific Time 04-10-19

This afternoon I opened up SatSat on my iPhone and discovered that the WebOne string of satellites would become directly over my location, OneWeb 0011 already above the detection horizon.

OneWeb0011_overhead
OneWeb 0011 pasted my location headed North.

I popped open the iPad for a larger view and hoped to do a screen capture. I got the larger picture, but could not get the iPad to do a screen capture. Using Plan B, I used the iPhone camera to capture the iPad screen. My apology for the fuzzy photos, but they are good enough to see the location of the satellites come over the horizon. When in the line of site it is possible to acquire a signal (AOS), and when they are out of range over the horizon (LOS) the signal is lost. As OneWeb  0011, 0006, 0007, and 0008 transition overhead the AOS periods were from 14 to 17 minutes. OneWeb 0012 was a laggard, somewhere over the Southern Indian Ocean when the string was approaching my location in the Central Valley of California headed North.

Multi_sat
OneWeb 0006 at the top, followed by 0007and 0008 with 0010 three minutes to AOS.

Although I did not calculate it precisely, with the string to OneWeb birds overhead, I would have had more than 30 minutes of coverage, and perhaps a little more as OneWeb 0012 final showed up much farther to the West but could have provided some AOS time.

SatSat is available at the Apple App Store.

 

How Small are SpaceX and OneWeb Satellites

Russell Steele

oneweb__3

The OneWeb satellite has been described to be about the size of a beer refrigerator. That may be hard for some to visualize in the above graphic, so here is a beer refrigerator sold on Amazon.

61vvh5cQ1QL._SL1000_

The SpaceX Starlink satellite is reported to be 1.1 meters (39in) long and 0.7 meters (28in) wide and 0.7 meters (28in) tall. The beer refrigerator above is 37.5 x 26.4 x 21.2 inches a bit smaller than a Starlink bird, but it gives you a sense of the size.

So, we can say these LEO Sats are about the size of a large beer cooler.

The State Of Our Maps

— Senate Commerce holds a hearing this morning on the steps needed to improve the accuracy of broadband mapping data, particularly in rural communities where the lack of reliable information has become a source of frustration for lawmakers on both sides of the aisle. Panel Chairman Roger Wicker (R-Miss.) has criticized the FCC’s handling of the issue and, six months ago, contemplated the use of a congressional spending bill to force the commission to revisit the problem. “Flawed and inaccurate maps ultimately waste resources and stifle opportunities for economic development in our rural and underserved communities,” Wicker said in an opening statement shared with MT.

— Witnesses include USTelecom President Jonathan Spalter, who is leading his own mapping initiative. (Charter Communications and Microsoft both outlined their own concerns with the mapping process and suggestions for improvement in blog posts this past week.)

Source: POLITICO Morning Tech

Fearing Cancer From 5G, Portland City Council May Ask FCC to Investigate

Fearing unknown health risks, members of the City Council in Portland, Oregon, will vote Wednesday to oppose the rollout of 5G wireless networks.

In a proposed resolution, Mayor Ted Wheeler, along with Commissioners Chloe Eudaly and Amanda Fritz, write that there’s evidence suggesting wireless networks can cause health problems — including cancer.

They express concern that the Federal Communications Commission has not conducted enough research to demonstrate that 5G networks are safe, while at the same time prohibiting state and local governments from passing their own regulations on telecommunications technology.

And while Wheeler, Eudaly, and Fritz are correct about the FCC’s power to dictate how state and local governments manage wireless networks, the connection between 5G networks and cancer is a lot more complicated than they say it is.

What Does the Science Say About 5G and Cancer?

“There is evidence to suggest that exposure to radio frequency emissions generated by wireless technologies could contribute to adverse health conditions such as cancer,” reads the proposed resolution. This evidence comes from a large-scale study conducted by the National Toxicology Program (NTP), a division of the US Department of Health and Human Services.

The final results of this study, published in November 2018, showed a strong association between the type of radiation used for mobile phone signals and certain types of cancerous tumors in lab rats.

But that’s where the situation gets tough.

how-4g-antennas-broadcast-signals-compared-to-how-5g-antennas-beam-signals-across-a-city4g vs 5g signals

How 4G antennas broadcast signals compared to how 5G antennas beam signals across a city.

The NTP study, which took place over 10 years and involved exposing more than 7,000 rats and mice to radio-frequency radiation — the type used in cell phones — didn’t actually involve 5G networks. It didn’t even involve 4G or 4G LTE, which are used today. It focused only on signals used by wireless technology under the 2G and 3G standards.

Continue reading HERE for a discussion of Local vs Federal Regulations

Here is some insight into the impact of 4G on brain cancer:

cellphone_cancer_rates

Use of 4G has not increased brain cancer rates,  there is a slight decline.  Your thoughts on the danger of 5G signals.

SpaceX Starts Launching Starlink Network in May 2019

SpaceX has announced a launch target of May 2019 for the first batch of operational Starlink satellites in a sign that the proposed internet satellite constellation has reached a major milestone, effectively transitioning from pure research and development to serious manufacturing. R&D will continue as SpaceX Starlink engineers work to implement the true final design of the first several hundred or thousand spacecraft, but a significant amount of the team’s work will now be centered on producing as many Starlink satellites as possible, as quickly as possible.

With anywhere from 4400 to nearly 12,000 satellites needed to complete the three major proposed phases of Starlink, SpaceX will have to build and launch more than 2200 satellites in the next five years, averaging 44 high-performance, low-cost spacecraft built and launched every month for the next 60 months.

Source: Tesalarati

My question is how many in the first batch,  twenty-five, or more.  One estimate:

Using a Falcon 9 at 25 satellites per launch it would take 177 flights, about 36 flights per year. Using a Falcon Heavy with 40 satellites it would take 112 flights, over 5 years that’s about 22 flights per year. Using a BFR assuming 350 satellites per launch, until someone comes up with a better number, would need 13 flights total.

Source: Reddit Starlink FAQ

Digital Trends Reviews Chicago’s 5G

Verizon activated its first 5G network in the U.S. on April 3, a week ahead of schedule, and Digital Trends flew to Chicago to see how it performs. In the video, you can see what a Verizon mini-cell looks like hung on lamp poles. The tests demonstrate why mmWave technology will not work well in rural areas. The high-speed range of the mini-cell tested was less than a city block.  Note the 5G timeline suggested by the reviewer, 2021 +?

Video link is HERE.