SEATTLE: The growing popularity
of portable, IP-based live shot gear
that utilizes cell phone network
bandwidth, comes as no surprise, because
it’s a great equalizer.
“It gives us the ability to do remote television
broadcasts, something that used to
be the domain of just the television networks
and their affiliates,” said Glen Johnson,
politics editor for Boston.com, the
Web site of The “Boston Globe.”
Johnson was able to roll into town for
the Iowa caucuses and New Hampshire
primary with the ability to go live, just like
the big boys. “You can put the gear in the
aircraft overhead, carry it off with you and
be remote from that box.” It’s proven to be
“very popular with our readers, our viewers,
our subscribers. This is a great thing.”
‘ACHILLES HEEL’
Still, live shots via cellphone circuits is
not without its headaches. “The Achilles
heel to the whole thing is the strength of
the cell connections, and so if you’re in
an excessively remote location, you might
not have bandwidth or signal strength to
broadcast,” Johnson said. “That’s why a lot
of these product makers build redundancy
into their kits, and use different network
air cards to try to provide a range of ability
to get signals to where you are.”
Boston.com uses the AirStream by Vislink’s
LiveGear brand.
Keith Smith, chief photographer at WVLT-
TV, the CBS affiliate in Knoxville, Tenn.,
emphasized the importance of hunting cell
phone signal strength. “We’re always checking
to see what towers are in the area, where
the towers are and how close they are to our
location.”
The process has resulted in a growing
body of knowledge. “We keep a database
of all of our shots, so I know where we’ve
done something in that area
before, and I’ve logged it
on Google Earth, with details
about how the signal
strength was, what the quality
looked like.”
Just like trying to maintain
a good cellphone call, Smith
said sometimes a few feet in
either direction matters. “If I
see that the signal out there
could be a little bit better, I’ll
tell my guys to walk a few
feet in one direction, or a few
feet in the other, to find where
that very sweet spot is for the
cell service.”
WVLT-TV is a TVU Networks customer.
RESISTANCE IS FUTILE
Aaron Ramey, news director at WBND-LP,
said ENG crews first need to embrace [cellular
bandwidth] technology. The South Bend,
Ind.-based ABC affiliate has been doing newscasts
for just over a year, and “we have used
this gear from day one, so we didn’t have
to change habits and change culture in our
newsroom,” he said.
“I’ve always equated it to back in the ‘80s,
when everybody started purchasing ENG
trucks, and you didn’t know what the limitations
were until you pushed it. That’s what
we’re in the middle of. You’re going to have
some failures from time to time.
“We’ve gone to small towns where cell
coverage hasn’t been that great, but as the
software on the equipment is enhanced, that
seems to improve. There are very few places
in our market where this thing doesn’t work.”
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| Pat Middendorf, photographer for WVLT -TV in Knoxville, Tenn., shoots Lauren Davis, anchor/reporter for WVLT -TV on TVU Networks’ TVUPack. |
Ramey’s portable live shot gear also has
WiFi connection capability, and he pointed
out the importance of looking for that kind
of signal-path backup from a news story
scene. “If you’re at a location that has pretty
good WiFi, you can connect directly to that.
The other thing is, for great quality and
response is to try to get a hard line connection
to the Internet, which our units are
capable of.”
WBND-LP is a LiveU customer.
One hitch in the get-along of cellular networks
live shots is signal delay, technically
known as latency. WVLT’s Smith said his station
runs the portable IP-based gear in two
modes.
“If we’re doing a standard live shot, we’re
going for quality and not for latency, we average
about a five second delay,” Smith said. “If
I know—and usually they’ll tell me ahead of
time—that we’re less worried about quality,
we want the latency to be lower, I’ll set it
[for minimum] latency.” That reduces delay
down to about two seconds, which results in
a smoother back and forth between anchors
in the studio and reporter in the field.
A characteristic of live shots utilizing cellular
phone circuits is that that a station is
not only competing for bandwidth with
other stations doing live shots, but also with
the general public who may be snapping
pictures and transmitting them back to Aunt
Emily. WBND’s Ramey recalled an experience
at a Notre Dame football game:
“We did an hour special ahead of that
ABC game, and our reporter was live on
the field at the top of the show, when the
stadium was virtually empty. By the end of
the show, as the stadium was filling up, we
ended up losing the live shot because of
that.” But he said he’s found that, in general,
“if you can get connected to the cell circuits,
more likely than not you’re going to
be able to maintain that as long as you stay
connected to it.”
WBND’s Smith said getting the cellular
liveshot link established early seems to be
the ticket to success. For a University of Tennessee
game against Georgia, “we got on the
towers early, probably about 20 minutes before
the game ended, so we already had our
IP address.” The link stayed up fine.
Like any new technology, cellular networks
live-shot gear has its own peculiarities,
its own learning curve. All three individuals
TV Technology spoke with are high on the
capabilities and portability of the equipment,
and predict the continued build-out of 4G
cell phone infrastructure will enhance the
success of their live shots.