In Broadcast - August 2013 - 32

I N T E R N A T I O N A L

WWW.INBROADCAST.COM | ISSUE 22 - AUGUST 2013

N E W S

InFOCUS
Camera Links Moving Ahead Cont.
Lee Norton,
Product Sales
Director, BSI

“…Eventually we’ll
have the ability to
transmit via COFDM,
Wi-Fi, cellular,
Ethernet, point-topoint or VSAT using
a single piece of
hardware

”

32

Among the factors to be taken into
account when considering wireless
technology is the ability to recover
quickly after loss of signal. During
any deployment a camera is bound
to stray out of range or de-power
to indicate the need for a battery
change. In either case, the system
must be able to recover instantly
and resume operation seamlessly.
Ease of rigging is also important.
Many wireless systems use an allin-one approach, meaning a single
unit is used to connect to a camera
control panel and generate the RF
control signal. This, however, can
be an issue if an OB truck is parked
some distance from the event [such
as a car park in the basement of a
stadium]. In this case it’s necessary
to run long lengths of RF cable into
the venue, but to compensate for
losses in the cable the RF power has
to be increased. This increases the
overall RF noise floor and will impair
performance of other RF systems
in use such as talkback and the
wireless camera system itself.
Cobham combats this by
separating the RF unit from the
data unit, explains Brown. “They
are connected using a standard
audio circuit and can be separated
by several kilometres if necessary.
This ensures the RF unit is mounted
at the optimum location, and RF
power can be reduced as a result.”
Frequency reuse is also important
because increasing demand for
spectrum means that fewer RF
channels are available. Cobham’s
system allows up to four wireless
cameras to share the same 12.5 KHz
bandwidth control channel.
Some of the real strides forward
have come in the improvements
made to complimentary
technologies enabling even more
events to be covered in ways that
have not been possible in the past.
Deep Interleaving is particularly
effective at filling small breaks in
coverage at large open air events,
such as marathons and cycling

events, caused by trees, bridges,
tunnels and street furniture. The
transmitted signal is ‘scrambled’ and
additional error correction added.
Any single errors or large breaks in
reception are effectively converted
into several small errors during the
receive/de-scrambling process,
enabling the error correction to
‘repair’ the signal.
Vislink also claims to be the first
wireless camera manufacturer to
offer an RF module that incorporates
digital pre-distortion. Link Digital
Pre-Distortion (LPDM) improves
wireless camera operation by
providing “unrivalled” adjacent
channel performance and “ultraclean” RF transmitter spectrum.

HEVC, 4G And Ka-band
“Eventually we’ll have the ability to
transmit via COFDM, Wi-Fi, cellular,
Ethernet, point-to-point or VSAT
using a single piece of hardware,”
says Lee Norton, Product Sales
Director, BSI. “The biggest challenge
to achieving this is incorporating
all of this capability into a device
that is still small, lightweight and
easy to use.”
All wireless systems have to trade
range for bit rate – the higher the
picture quality required, the lower the
achievable range. The introduction
of advanced video compression
standards like HEVC/H.265
will inevitably benefit wireless
transmission in live production.
“The technology is only in its infancy,
but it will be a game changer as the
industry moves from 1080p to 4K
and, eventually, 8K,” says Norton.
“Improved compression will enable
higher picture quality at lower
bitrates, so production teams will
benefit from increased range using
current picture quality thresholds,”
adds Brown. “Improved compression
will also enable the use of even higher
picture quality settings [such as
1080p] without a reduction in normal
wireless camera coverage areas.”
Video-over-IP is also having an
impact as a viable means of remote
newsgathering due to substantial
improvements in compression
algorithms, encoding

Tighter collaboration: Panasonic’s
AG-HPX600 and LiveU’s LU40 unit
interconnect via the SDI and USB

technology and wireless connectivity.
These have enabled the industry to
develop smaller and more economic
transmission devices that allow
journalists to cover news from just
about anywhere they can reach.
Cobham’s MediaMesh, for
example, includes a broadcast
quality transmission path for live twoways, the ability to control a camera
remotely from the studio, perform
file transfers, use a high capacity
internet connection, have access to
the base newsroom computer, and
offer mobile phone access – all from
a single unit that can be carried in
one Peli case.

AMD Independent
Software Vendor
Manager Rob Jamieson

seeing
“…We’recollaboration
greater
with satellite
communication
operators and
players

”

Also important in terms of wireless
connectivity for newsgathering, is
the increasing desire to use satellite
Ka-band. “Demand for traditional
Ku-band access can at times
outstrip capacity, which can make
it expensive,” says Brown. “However,
the development and deployment of
number of large, multi-transponder
Ka-band satellites and Ka-band
satellite networks is increasingly
offering a viable and economic
alternative to Ku-band [MediaMesh
is capable of exploiting both].”
LiveU’s Xtender can be remotelylocated, tripod or vehicle-mounted
to create a mobile newsgathering
vehicle with, its claimed “satellite-like
reliability, faster set-up time and lower
overheads than traditional SNG/ENG
trucks”. With this integrated
solution, broadcasters

The LiveU40-S is
now compatible with
Sony’s PDW-700 camcorder
for live video coverage

can also use cellular connectivity
as part of their existing trucks.
“We’re seeing greater collaboration
with satellite communication
operators and players, enabling
news teams to enjoy the benefits of
both satellite and cellular networks
for live newsgathering,” says Artman.
The introduction of 4G as an
alternative to DVB-T/DVB-T2 for
wireless camera link transmission
has also opened up the use of
wireless cameras for live broadcast
applications to a wider audience.
“Though the low cost of some 4G
alternatives makes them an attractive
option, these new technologies have
yet to prove consistent and reliable
performance in live, broadcast
environments and are often
impacted by the amount of other
traffic on the network being used,”
says Norton. “They have uncertain
delay with varying channel bitrates,
making them still unsuitable as a
direct replacement for ultra-low delay,
high quality DVBT/T2 systems. Their
performance will be tested further
as the industry migrates toward 4K.”
Companies such as LiveU
and Vislink are already using 4G
cellular bonding to overcome the
deficiencies in the 3G network to
deliver video. On top of this there is
the increasing take-up of 4K, with
sports broadcasters already testing
and compiling content in this format.
Down the line they will be looking
to links suppliers to de r a wireless
solution that will cope with the
UltraHD resolution.


http://www.linkedin.com/pub/dir/?first=Phillip&last=Izzard&search=Go https://twitter.com/inbroadcast http://%20http://www.youtube.com/watch?v=qpzEatLsHdE&feature=youtube_gdata_player https://www.facebook.com/InBroadcast http://itunes.apple.com/gb/app/inbroadcast/id468652679?mt=8 https://play.google.com/store/apps/details?id=com.branded.inbroadcast&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5icmFuZGVkLmluYnJvYWRjYXN0Il0. http://WWW.INBROADCAST.COM http://www.liveu.tv/lu40i.html http://pro-av.panasonic.net/en/sales_o/broch_pdf/ag-hpx600.pdf

In Broadcast - August 2013

Table of Contents for the Digital Edition of In Broadcast - August 2013

In Broadcast - August 2013
Contents
InNEWS: Panasonic Announces AK-HC3500A Camera
InNEWS: Shotoku Elevates Newscasting for KETK-TV
InFOCUS: Camera Links – Following All the Vital Action
InTECH: Fischer Connections Solutions for Broadcast
InMEDIA: Delivering Anytime Content on Cable
InMEDIA: Screen – High Definition Subtitling and Beyond
InSOUND: DPA’s D:Dicate Recording Microphone Range
In Broadcast - August 2013 - Intro
In Broadcast - August 2013 - In Broadcast - August 2013
In Broadcast - August 2013 - Cover2
In Broadcast - August 2013 - Contents
In Broadcast - August 2013 - InNEWS: Panasonic Announces AK-HC3500A Camera
In Broadcast - August 2013 - 5
In Broadcast - August 2013 - InNEWS: Shotoku Elevates Newscasting for KETK-TV
In Broadcast - August 2013 - 7
In Broadcast - August 2013 - 8
In Broadcast - August 2013 - 9
In Broadcast - August 2013 - 10
In Broadcast - August 2013 - 11
In Broadcast - August 2013 - 12
In Broadcast - August 2013 - 13
In Broadcast - August 2013 - 14
In Broadcast - August 2013 - 15
In Broadcast - August 2013 - 16
In Broadcast - August 2013 - 17
In Broadcast - August 2013 - 18
In Broadcast - August 2013 - 19
In Broadcast - August 2013 - 20
In Broadcast - August 2013 - 21
In Broadcast - August 2013 - 22
In Broadcast - August 2013 - 23
In Broadcast - August 2013 - 24
In Broadcast - August 2013 - 25
In Broadcast - August 2013 - 26
In Broadcast - August 2013 - 27
In Broadcast - August 2013 - 28
In Broadcast - August 2013 - 29
In Broadcast - August 2013 - 30
In Broadcast - August 2013 - 31
In Broadcast - August 2013 - 32
In Broadcast - August 2013 - 33
In Broadcast - August 2013 - 34
In Broadcast - August 2013 - 35
In Broadcast - August 2013 - InFOCUS: Camera Links – Following All the Vital Action
In Broadcast - August 2013 - 37
In Broadcast - August 2013 - 38
In Broadcast - August 2013 - 39
In Broadcast - August 2013 - 40
In Broadcast - August 2013 - 41
In Broadcast - August 2013 - 42
In Broadcast - August 2013 - 43
In Broadcast - August 2013 - 44
In Broadcast - August 2013 - 45
In Broadcast - August 2013 - 46
In Broadcast - August 2013 - InTECH: Fischer Connections Solutions for Broadcast
In Broadcast - August 2013 - 48
In Broadcast - August 2013 - 49
In Broadcast - August 2013 - 50
In Broadcast - August 2013 - 51
In Broadcast - August 2013 - 52
In Broadcast - August 2013 - 53
In Broadcast - August 2013 - 54
In Broadcast - August 2013 - 55
In Broadcast - August 2013 - 56
In Broadcast - August 2013 - 57
In Broadcast - August 2013 - InMEDIA: Delivering Anytime Content on Cable
In Broadcast - August 2013 - 59
In Broadcast - August 2013 - 60
In Broadcast - August 2013 - 61
In Broadcast - August 2013 - InMEDIA: Screen – High Definition Subtitling and Beyond
In Broadcast - August 2013 - 63
In Broadcast - August 2013 - 64
In Broadcast - August 2013 - 65
In Broadcast - August 2013 - 66
In Broadcast - August 2013 - 67
In Broadcast - August 2013 - 68
In Broadcast - August 2013 - 69
In Broadcast - August 2013 - 70
In Broadcast - August 2013 - 71
In Broadcast - August 2013 - 72
In Broadcast - August 2013 - 73
In Broadcast - August 2013 - 74
In Broadcast - August 2013 - 75
In Broadcast - August 2013 - InSOUND: DPA’s D:Dicate Recording Microphone Range
In Broadcast - August 2013 - 77
In Broadcast - August 2013 - 78
In Broadcast - August 2013 - 79
In Broadcast - August 2013 - 80
In Broadcast - August 2013 - 81
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In Broadcast - August 2013 - 89
In Broadcast - August 2013 - S1
In Broadcast - August 2013 - S2
In Broadcast - August 2013 - S3
In Broadcast - August 2013 - S4
In Broadcast - August 2013 - S5
In Broadcast - August 2013 - S6
In Broadcast - August 2013 - S7
In Broadcast - August 2013 - S8
In Broadcast - August 2013 - S9
In Broadcast - August 2013 - S10
In Broadcast - August 2013 - S11
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202403
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202402
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202401
https://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202312
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_202001
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2019
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201912
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NewYork2019
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http://europe.nxtbook.com/nxteu/lesommet/CTA-DAY2
http://europe.nxtbook.com/nxteu/lesommet/CTA-DAY1
http://europe.nxtbook.com/nxteu/lesommet/CTA-VISITOR
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201906
http://europe.nxtbook.com/nxteu/lesommet/CTA-PREVIEW
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201905
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NewYork2018
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201806
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201805
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201804
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201803
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201802
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2018
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201801
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201712
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo2017
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201708
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201705
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2017
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_20121201
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