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The Digital TV switch was good for me

The analog shutdown on midnight Friday and subsequent frequency shuffle of digital broadcasts left this San Francisco Bay Area viewer pleasantly surprised.

2 min read
The Digital TV switch was good for me

The Digital TV switch this weekend went smoothly in my San Francisco Bay Area home, more smoothly than I had anticipated. Admittedly, I spent lots of time, effort, and money getting ready for it—besides the converter boxes, I needed a new antenna, and my husband had to go up on the roof and replace our antenna twice before we got it right. Yeah, I lost one TV in the house—no antenna hookup for that third TV, and just too far from the transmitters to pick up a digital signal on rabbit ears.

But in spite of my pre-transition experience that foreshadowed problems with the analog shutdown—a dearth of English language stations and no American Idol viewing next season—we now have most of the channels we had before, plus a few extra, including a sports channel that has made it more difficult to pry certain family members off the couch.

The difference? Most stations in the San Francisco Bay Area changed their digital channels this weekend, in most cases to a much lower UHF or even to a VHF frequency. My understanding is that these new frequencies are somewhat less subject to attenuation, and the difference seems to be enough to put me inside instead of outside the reception footprint. So it looks like analog shutdown, after all, isn’t going to mean a monthly cable television bill in my mailbox.

The San Francisco Bay Area transition reportedly went forward with few hitches. According to a memo from Valari Staab of KGO television, KGO was able to resolve 80 percent of people’s problems receiving its signal on the phone, but acknowledges that, because it is being allowed to operate with more power than others assigned to Channel 6 or 7, the high-VHF frequencies, and broadcasting from its old analog antenna positioned at the top of Sutro Tower, it is having less issues than its brethren around the country. I may lose KGO for a while after mid-July, when it moves daytime broadcasts to an auxiliary antenna while crews are working to put new digital antennas for other stations up high on the tower. That work is expected to be complete in October. Staab also reported that local Best Buys have been running low on antennas.

In the rest of the country, reports, so far, are that things went smoothly. The FCC received nearly 800,000 calls this weekend; Chicago took an early lead as the spot with the most trouble. Volunteers around the country, from firefighters to members of Best Buy’s Geek Squad were standing by to help people hook up their converters. I just tried to explain to my mother, long distance, how to rescan for channels. I was unsuccessful; I gave her the Best Buy hotline, though I doubt she’ll take advantage of it. Fortunately, two channels in her area didn’t switch frequencies, so she’ll have something to watch until my next visit.

It may be some time, if ever, before we really know how many folks around the country were unable to make the transition, who either had to start paying for cable or satellite or adapt to a life without TV, because they are in DTV dead zones.

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Two Startups Are Bringing Fiber to the Processor

Avicena’s blue microLEDs are the dark horse in a race with Ayar Labs’ laser-based system

5 min read
Diffuse blue light shines from a patterned surface through a ring. A blue cable leads away from it.

Avicena’s microLED chiplets could one day link all the CPUs in a computer cluster together.


If a CPU in Seoul sends a byte of data to a processor in Prague, the information covers most of the distance as light, zipping along with no resistance. But put both those processors on the same motherboard, and they’ll need to communicate over energy-sapping copper, which slow the communication speeds possible within computers. Two Silicon Valley startups, Avicena and Ayar Labs, are doing something about that longstanding limit. If they succeed in their attempts to finally bring optical fiber all the way to the processor, it might not just accelerate computing—it might also remake it.

Both companies are developing fiber-connected chiplets, small chips meant to share a high-bandwidth connection with CPUs and other data-hungry silicon in a shared package. They are each ramping up production in 2023, though it may be a couple of years before we see a computer on the market with either product.

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