TV Heading Toward Wireless Spectrum Crisis

The shortage of frequencies necessary for live production that looks to be coming after the spectrum repack has TV engineers very worried, says Louis Libin of Broad Comm, a broadcast spectrum consultancy, and executive director of the Advanced Television Broadcasting Alliance. He says stopgap measures, such as temporarily migrating to other bands, modifying production techniques and developing new wireless technologies, can help, but the real solution will come from an FCC that recognizes the value of over-the-air TV broadcasting.

Television sports production in the United States may soon experience changes that in essence transport it back in time and technology rather than advancing the state of the art. That would be the result if government regulators fail to take seriously the shortage of frequencies that will result from repacking the TV band and allowing unlicensed white space devices to operate on vacant channels.

That’s the rather dire warning from Louis Libin, founder and president of Broad Comm, a broadcast spectrum consultancy, and executive director of the Advanced Television Broadcasting Alliance, makes in this interview with TVNewsCheck Tech Editor Phil Kurz.

While Libin, who has spent more than 20 years coordinating frequency use for live sports, entertainment and political convention production, says stopgap measures, such as temporarily migrating to other bands, modifying production techniques and developing new wireless technologies, can help, the real solution will come from an FCC that recognizes the value of over-the-air TV broadcasting.

For the short term, however, Libin says sports producers will have to make due with these sorts of solutions because the FCC, as currently constituted, is intentionally using a shortage of TV spectrum as a wedge to sow disharmony between broadcasters and wireless mic users like those in the sports production community to weaken their respective positions and advance its spectrum policy.

An edited transcript:

Wireless mics, intercoms and other gear that transmit on unused UHF TV channels are essential to modern sports production. What are your thoughts about the TV spectrum repack and the introduction of unlicensed white space devices as relates to sports production?


I am not going out on a limb here. The FCC has a strategy for broadcasting generally. Their strategy is, broadcasting doesn’t need spectrum.

They don’t need 700 MHz. Got rid of that. They don’t need 600 MHz, getting rid of that; and they don’t really want us in the 500 MHz, especially under [FCC Chairman Tom] Wheeler.

He’s pretty transparent. Broadcasters shouldn’t be in spectrum. The FCC has a lot of different techniques they are using to get broadcasters out of spectrum.

What we’re calling the white space proceeding, or really the vacant channel proceeding, is a very serious wedge issue for the broadcasters.

What do you mean by a “wedge issue?”

By a wedge issue, I mean the FCC has an ax and a wedge, and they are chopping away to divide broadcasters.

These are very complicated issues, the vacant channel issues. It’s almost as though the wireless mics and the other broadcast auxiliary devices that work in 500 MHz and 600 MHz — soon to just be 500 MHz — are eclipsed by the bigger issues of the vacant channels.

The commission thought really long and hard about how to divide the broadcast community.

We already have a problem in many, many markets just squeezing out enough channels to do the broadcast [of a live sporting event]. That problem simply will be compounded. If you are now going to squeeze everything into a smaller TV band, where are these wireless mics and broadcast auxiliary services going to go?

Broadcasters are commenting that vacant channels are in danger. They are concerned about their main channel, and everything else is minor.

Then we have [wireless mic] vendors and others who do sports production saying, “Be sure you reserve us a vacant channel.”

The ones who really understand how sports productions are being done wirelessly today are getting extremely nervous because the FCC has proposed no solution.

So, you see the FCC pitting OTA broadcasters against live sports and entertainment producers and white space proponents against them both?

I think the commission is just hoping that the noise level of all the folks who use the broadcast auxiliary service is low enough that it won’t matter.

The FCC, of course, is winning. They are the ones who set the rules. They are just winning by attrition.

And they never really listen or provide any help or solutions to the broadcasters.

This [situation] is creating enemies among all those who are not enemies. But everyone is just grasping for the few straws that are left.

Can you quantify the spectrum demands for different sorts of sports productions?

You can divide these types of events into four categories.

  • The small event could be a state fair, a basketball game or a local concert. It’s an event where we use wireless mics and sometimes wireless intercoms. That’s all.
  • A medium-size event today could be a high school or college football game where there is a wireless intercom and as many as 40 channels of wireless in use.
  • Then you have a heavy user. For example, at a college or NFL football game, you could have up to 60 channels of wireless in use. And there may be ENG crews that come around to cover the event. They need to be accommodated. That number could be anywhere from zero to 100. Now you are talking about 140 to 160 channels of spectrum. That’s tough to accommodate.
  • Then you go to the Super Bowl, and that’s really a different story. As with political conventions, every bit of spectrum is gobbled up — not in a bad way. But it’s used and reused as much as possible. There’s no end to the amount of spectrum that gets used -even low-quality spectrum is used because high-quality spectrum, that which is free and clear, is fully taken over.

When 600 MHz is gone, if the FCC gets its wish, you can take a Super Bowl, or a heavy football use mentioned as the third category and those two types of events will surely suffer right away.

At that point, there will need to be solutions found, or production will have to change. Obviously, it won’t be for the better.

What sorts of changes do you envision?

In a lot of ways, we will be going back in time. Wireless intercoms will be a problem. If we don’t have solutions that are applied by the FCC, they’ll have to go to wires.

It’s interesting. The engineers in the industry understand this and are fighting this.

But the production people, they just look at the engineers like they are from a different planet. They don’t realize that today’s productions are basically like balloons that are about to pop.

Things are going to change. That is the issue in a nutshell.

Is there a technological way out of this predicament? Maybe leveraging Wi-Fi or mobile?

Yes, to every one of those. But none is a true, transparent, seamless solution.

Engineers are engineers, and they solve problems. So every scenario you’ve brought up is being studied, and even more of them [are being examined]. But they are all sort of Band-Aids and piecemeal. They all have operational constraints.

Wi-Fi is a very good example. That’s nice. That’s a free, unlicensed band. The problem, of course, is saturation.

Trunking systems, wow, those are nice. But you can’t use them because you have the delays.

Maybe we multiplex a couple of mobile phones together? We can, but the bandwidth constraints won’t give us the same quality we are used to for wireless mics that are part of the contribution network.

There’s the bottom line. If you don’t have the bandwidth in the contribution network, you can’t fix it any place else. Wireless mics need to be pristine, and they need to be protected.

What about moving some of this wireless demand for sports productions to other bands?

One example is the 1.4 GHz band. It’s a band that is licensed to AFTRCC [the Aerospace and Flight Test Radio Coordinating Council], which is used as an aircraft test frequency.

To use it, broadcasters have to apply for an STA [special temporary authority from the FCC] every time they use it, and it’s been identified as a band that we can potentially share. But the rules haven’t been set yet.

Another example is 2.2 GHz, which is used by government frequency users, although it’s not widely used.

To use that band, broadcasters have to get permission from the NTIA [the National Telecommunications and Information Administration] via the FCC.

What they’ve found is the NTIA is more and more reluctant to allow that use, so they turn down the STA requests.

Everybody is now going into their shell and protecting what they have. The normal users of the 2.2 Gig band are now saying: “Wait a second. We don’t want to set a precedent, and we don’t want to allow too many STAs because eventually they may want to share and take away our band.”

I wouldn’t be surprised if the same thing doesn’t start happening with the 1.4 Gig band. We need leadership, and the FCC is not providing any at all.

How about modifying wireless techniques used in sports productions to solve the problem?
Frequency coordinators or the wireless coordinators for these events are going to have to get much more creative. We have to find new and creative ways to innovatively assign and share spectrum.

The use of directional antennas, keeping the powers very, very low, bring the antennas very, very close so the receive antennas are close — those techniques have the potential to help.

But the real solution lies with the FCC. My hope is that we get a commission that has a little more interest in broadcasting in the United States and really understands its benefits to the American people so that we don’t have to solve these problems by ourselves. The regulators need to help us.

To stay up to date on all things tech, follow Phil Kurz on TVNewsCheck’s Playout tech blog here. And follow him on Twitter: @TVplayout.

Comments (12)

Leave a Reply

Erik Stone says:

November 12, 2015 at 10:59 am

Correct me if i am wrong but doesnt ATCS 3.0 fix a lot of these issues?

    Bill Evans says:

    November 12, 2015 at 12:22 pm

    No, unfortunately it won’t. It still uses 6MHz per channel just like current DTV. ATSC 3.0 just allows you to pack more into a channel. Sure you could have a channel in each market that has the big 4 networks, but even ATSC3.0 would have a tough time getting all those channels in HD.

Patrick Burns says:

November 12, 2015 at 11:50 am

Until the Dems are out of the FCC control and all 5 commissioners are into the basic concept of broadcasting and not all their other distractions , broadcasters are screwed. The Microsofts & Googles etc have the whole game bought & paid for. They realize that once TV OTA etc is gone, their stranglehold on our data , video etc will be 100% their ballgame. You think cable bills are hi, check back in 15 years , hello !!!

Hold onto your chairs, it will be a bumpy ride for sure !!!

Mario Ruiz says:

November 12, 2015 at 12:16 pm

ATSC 3.0 will not fix any of these issues. While ATSC 3.0 improves the spectrum efficiency of a 6 MHz broadcast channel, it has no effect on other uses of TV spectrum (wireless mikes, white spaces devices, etc.) These devices all need spectrum to function, and the spectrum they are using is being auctioned off to wireless carriers. This doesn’t just affect broadcast remotes, think of the hundreds of wireless mikes that are used for a Broadway show, and the millions of wireless mikes used by churches, schools, auctioneers, etc. There is a train wreck coming, created by an FCC bought by the wireless carriers.

Patrick Burns says:

November 12, 2015 at 12:27 pm

Very well said !!!

This mess is the most obvious proof that our agencies & Senators & Congress members are bought & paid for. they use names like legislative breakfast meeting with a fee that starts at 20 K, plus the per person. Those croissants better be caviar crusted. We are not a republic anymore but a political whore house who votes & tables new laws based on one thing , moola !!!

Eric Koepele says:

November 12, 2015 at 1:10 pm

Does this affect electronic news gathering?

    Ellen Samrock says:

    November 12, 2015 at 3:16 pm

    It shouldn’t. Broadcasters still use 12 MHz of the BAS 2 GHz band and 7 GHz band for ENG. And then there are the private mesh networks that can work on a variety of bands both licensed and unlicensed as well as 4G LTE modems that can stream live data from any location that has cell service.

    Wagner Pereira says:

    November 12, 2015 at 6:39 pm

    Yes Kathy it would, despite what “Roger Thornhill” states. Understanding his LPTV does not much beyond the City Council Meeting, real News Gathering requires everything starting with basic wireless microphones (unless one wants to stand in flood water with a mic hardwired to a hot truck). “Roger” is only thinking about the Backhaul, not what it takes to actually produce the backhaul.

    Ellen Samrock says:

    November 15, 2015 at 12:05 pm

    Having been a news photographer who worked for a station, I’m well aware of what is involved in “real news gathering”. Kathy, ignore the little troll with the computer in his basement who calls himself “insider.” While it’s true we don’t know how at this point how the lack of enough white space will impact wireless mics some ideas have been put forward. Commissioner Pai, for example, has spoken about opening up the 5350-5470 MHz and 5850-5925 MHz bands for unlicensed use as well as 195 MHz of the 2 GHz band. Another suggestion was sharing spectrum on the government bands. So, it may be that by the time the auction is over and the repack is being organized, we will have a clearer understanding of what unlicensed spectrum will be open to wireless mics and any other unlicensed devices.

    Wagner Pereira says:

    November 15, 2015 at 7:11 pm

    So “Roger” backtracks and contradicts his first comment “It Shouldn’t”.

Matt Hew says:

November 12, 2015 at 6:05 pm

For 20 years spectrum has no longer been free in the US in general. Thus the problem here isn’t the shortage of spectrum, it is the shortage of FREE spectrum.

While a public interest case can be made for modest wireless mic system for churches and maybe conference centers, large production systems are exactly the one that should not get free spectrum.

In the UK, equivalent “PMSE” users have been paying for spectrum for years. When users start paying for spectrum they will be more flexible about paying for efficient technology than they are today.

    lawrence selik says:

    November 13, 2015 at 4:54 pm

    That is the real shame. In the US the spectrum belongs to the people and is supposed to be managed in public’s best interest. No one entity should have strangle hold regardless of money and power. Yes, the Googles and their like are and should be able to use the spectrum. But, in the end publicly available over the air radio and TV are the life blood of the national emergency system, the internet is dependent on cable and infrastructure, broadcasters can usually get back on the air and provide vital information faster and with a greater reach. Also imagine how the alternative distribution model would work without low power comms and other uses at a large event like the Super Bowl. Taking a bite out the last hunk of space will irreparably damage the ability to produce the high quality of sports programming we have today. In the end if this spectrum goes away the real losers are the public and sports fans in particular. In the 28 years I have been in the wireless comms business, this is the biggest threat to production I have seen. Yes, technology has allowed us to go “digital” but even then you still need a place to play. We can only hope that the commissioners get a brain and see that the torches and pitch forks will show up at their door when Football, Baseball, NASCAR, Golf and Soccer fans get bad product because we can’t do our jobs as content producers.