In Broadcast - February 2021 - 32

32

www.inbroadcast.com | Vol: 11 - Issue 2 | February 2021

InTech

Going Wireless in 2021
Contributing Editor Andy Stout looks
at how the move to IP and the ongoing
transition to 5G is affecting wireless
video transmission...

P

lus ça change, plus c'est la
même chose. Despite the current
disruptions in the industry caused
by the move to IP and the gradually
snowballing roll out of 5G, the pain
points of transmitting video wirelessly
are almost timeless.
" They are just the same as they
ever were, " says Colin Tomlin, MD
of VideoSys. " The key is a reliable
RF carrier, be that in the old days a
point to point link or these days using
COFDM and diversity reception. The
thing to remember is, once the signal
has left your TX antenna you have
no control over it, so you must do all
you can by selection of equipment
and antennas to mitigate possible
problems. No two jobs can be assumed
to be the same. "
VideoSys' Epsilon RF CCU system
at least helps with the complication
of rigging the equipment. " Many
engineers are put off RF equipment as
being too complicated or it's all a bit
too hard to do, " says Tomlin. " What
we did was to combine all the major
building blocks into the single system
as easy to rig as a normal CCU. "
MESH is the next thing for the
company. " This will allow us to
piggyback other services such as
return video and intercom onto a
single bi-direction link service, " says
Tomlin, indicating that there will be
a MESH version of the Epsilon CCU
system coming soon.
There is a dichotomy at the heart of
modern wireless broadcast design,
however, as Andy Clipsham, Senior
Technical Product Manager at Dejero
explains.
" A major challenge in the design of
wireless technology is that more and

more antennas are required in devices,
making them large and clunky when
the market needs devices to remain
small, lightweight and portable, " he
says. " This covers cellular of course,
but also Wi-Fi, GPS, and Bluetooth.
Providing the network and carrier
diversity needed to meet connectivity
requirements calls for a multitude of
antennas and supporting subsystems.
" In a portable device, providing
reliable ultra-wideband connectivity
is especially challenging because it
requires fitting and isolating many
antennas within a compact form
factor; for an antenna to operate
efficiently, RF interference must be
carefully managed. "
As a result of all this, the latest
model of the company's mobile
transmitter range, the EnGo 260,
incorporates what it has dubbed
Resilient Wireless Technology to
ensure ultra-reliable transmission and
reception. Clipsham says this means
it works even in the most challenging
cellular
environments,
including
remote field locations, deep within
buildings, and while on the move.
A large screen, three-hour battery
life, and convenient backpack ensure
straightforward, reliable operation
and simplifies portability. Meanwhile,
for broadcast and media, the EnGo
also has an optional vehicle antenna
dock which has been designed to offer
even greater versatility, doubling
as a cellular backpack as well as a
vibration-test encoder/transmitter in
a broadcast vehicle to maximise RF
performance.
Chris Brandrick is Commercial
Director at Broadcast RF, which is
part of the Euro Media Group and
also includes fellow RF specialists
Euromedia (France) and EuroLinX
(Belgium). As such he has an excellent
perspective on the issues regarding
the supply of RF technology into major
sporting events.
As he points out the move towards
UHD is putting pressure on the
frequency spectrum at major sports
venues that were already congested
in HD, though careful planning,

How small can you go?
Broadcast RF's EagleCam

early booking, and the use of careful
filtering or variable bandwidths in the
technology can normally squeeze the
systems into the spectrum available.
Then, of course, there's the sheer
increase in use.
" There's
an
ever-increasing
requirement for new cameras,
onboard, body-worn or field of play all requiring RF and power and all to
be as small as possible, with, of course
the same quality as conventional
cameras, " he says.
Broadcast RF has been developing
MiniRF cameras since Vancouver 2010
where it deployed helmet-mounted
RF cameras on Olympic skiers. The
technology has been steadily refined
since; a 4G bike-mounted system for
covering major cycling events called
the Velo4G debuted on the Tour De
France in 2019 and provided a racereye view from 24 onboard camera
systems.
Mention of 4G, of course, inevitably
leads to discussion of 5G.
" The main interest for us and the
broadcast industry are the higher
bitrates and lower latencies promised
in the standards and more importantly,
access to Quality of Service via options
like network slicing, " he says. " It is
important to understand however
that although the promises of 5G look
great, the devil is in the detail and it
may be a while before some of the real
benefits are able to
LiveU's LU800
be explored to their
production
level field unit
full potential. The
technology to replace
much of what we do
in the wireless camera
world with 5G is
simply not there yet,
but Broadcast RF will
be at the forefront of
it when it is. "

Broadcast RF's Velo4G
in action at the Tour de France

At LiveU, Ronen Artman, VP
Marketing, says the key pain point the
company saw emerging in the market
in 2019 and into 2020 was the growing
need for IP-bonding to move to multicamera capabilities in a single unit,
and do it with the high-quality required
for high-end sports sector.
" As the use of our IP-bonding
technology has increased across the
sports market - from dynamic fan
engagement content acquisition to
main coverage, alongside complete
remote production - we saw the need
for a production-level field unit for live
news and sports coverage, " he says.
" With the gradual rollout of 5G and all
the possibilities that brings, alongside
the aforementioned increasing use of
remote production, we understood
the market requirement for a
native 5G solution and IP services
ecosystem that allows our customers
to take full advantage of these new
opportunities. "


http://www.inbroadcast.com http://broadcastrf.com/ https://go.liveu.tv/lu800 https://go.liveu.tv/lu800

In Broadcast - February 2021

Table of Contents for the Digital Edition of In Broadcast - February 2021

Contents
In Broadcast - February 2021 - Intro
In Broadcast - February 2021 - Cover1
In Broadcast - February 2021 - Cover2
In Broadcast - February 2021 - Contents
In Broadcast - February 2021 - 4
In Broadcast - February 2021 - 5
In Broadcast - February 2021 - 6
In Broadcast - February 2021 - 7
In Broadcast - February 2021 - 8
In Broadcast - February 2021 - 9
In Broadcast - February 2021 - 10
In Broadcast - February 2021 - 11
In Broadcast - February 2021 - 12
In Broadcast - February 2021 - 13
In Broadcast - February 2021 - 14
In Broadcast - February 2021 - 15
In Broadcast - February 2021 - 16
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In Broadcast - February 2021 - 20
In Broadcast - February 2021 - 21
In Broadcast - February 2021 - 22
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In Broadcast - February 2021 - 24
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In Broadcast - February 2021 - 26
In Broadcast - February 2021 - 27
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In Broadcast - February 2021 - 30
In Broadcast - February 2021 - 31
In Broadcast - February 2021 - 32
In Broadcast - February 2021 - 33
In Broadcast - February 2021 - 34
In Broadcast - February 2021 - 35
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In Broadcast - February 2021 - 37
In Broadcast - February 2021 - 38
In Broadcast - February 2021 - 39
In Broadcast - February 2021 - 40
In Broadcast - February 2021 - 41
In Broadcast - February 2021 - 42
In Broadcast - February 2021 - 43
In Broadcast - February 2021 - 44
In Broadcast - February 2021 - 45
In Broadcast - February 2021 - 46
In Broadcast - February 2021 - 47
In Broadcast - February 2021 - 48
In Broadcast - February 2021 - 49
In Broadcast - February 2021 - 50
In Broadcast - February 2021 - 51
In Broadcast - February 2021 - 52
In Broadcast - February 2021 - Cover3
In Broadcast - February 2021 - Cover4
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202102
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2016
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https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201611
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_20110708_DEMO
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201604
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2016
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https://www.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC02
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https://www.nxtbook.com/nxteu/lesommet/inbroadcast_CCW15expo
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https://www.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC01
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