feature live acquisition/outside broadcast
Flexible OB solutions
Continued from Page 34.
MediorNet mainframes are
connected via Link cards, which go
directly into the mainframe. They’re
available with and without integrated
CWDM multiplexing providing a
bandwidth of up to 76.5 GBit/s on a
single fibre link. MediorNet‘s standard
fibre transceivers have an optical
budget of 18 dB minimum, allowing for
distances of up to 25 miles (40 km).
The Link cards can also include external
optical signals and transport them
MediorNet system
native signal is sliced into 6.1 MBit/s
not only allows for an operation in any
overview.
transparently through the system. The
segments. MediorNet transports these
kind of topology including ring, star or
intelligent bandwidth optimisation
slices to one or multiple destinations in
daisy chain, but also offers the ability to
enables the best possible and most
real-time. At the destination MediorNet
hot-swap any module, card or power
flexible solution to gain the most out of
recreates the native signal and
supply. Furthermore, MediorNet
the fibre connections. Each MediorNet
provides additional software-based
provides several different solutions for
frame contains a processing card,
signal processing and conversion
setting up the mainframes. All
which handles 16 4.25 GBit/s high-
features at the outputs. The processing
mainframes can be rack-mounted in
speed ports. So each carrier frame
card allows the individual routing of all
various positions. This means that an
within MediorNet has a bandwidth of
native signals within the 16 4.25 GBit/s
operation with all connectors on the
4.25 GBit/s. To optimise the bandwidth
ports, resulting in a router for 32x32
front or the rear is as possible as a
usage of the carrier frame, MediorNet
720p/1080i signals, 184x184 SD-SDI
recessed setup of the mainframe
divides the carrier into subframes with
signals, 27,000x27,000 AES signals or
within the rack. This way no cables or
6.1 MBit/s bandwidth, which
any combination of these.
connectors exceed the rack dimension
correspond to the smallest signal to
At mission critical events like the Red
thus offering a more failsafe operation.
transport: AES3 audio. These subframes
Bull Air Race it is important to provide
To add more flexibility, the IEC
can be filled with any type of data such
the most secure solution, as single
connectors can be located on the front
as HD-SDI or SD-SDI video, MADI or AES
points of failure could bring the whole
or the rear independently from the
audio, intercom or control data. Each
event to a halt. Therefore MediorNet
other cabling.
Leading the zero delay
a different type of system. Even daisy chaining receivers. If a camera
wireless revolution
though we had a small delay it operator is filming between rooms
worked really well and he loved it then the receivers can be linked by
Continued from Page 32.
because there was no loss of picture cable so that the signal is
and the colour was true and clean.” automatically picked up by the nearest
Cobalt system for a Food Network Now with Meridian, camera receiver, preventing signal problems
programme called Dinner Impossible. It is operators can achieve the same high that may be caused by obstructions.
He said: “When shooting in a sticky
providing
standards with zero delay. Another This new delivery process is not only
kitchen environment it’s not feasible to
smaller
major advance inherent to Meridian is revolutionising microwave technology
drag cables through the mess; it would
broadcasters
that it is RF licence-exempt, again at the top end, it is providing smaller
be an impossible shoot to maintain providing greater flexibility, cost broadcasters and production
without RF feeding from the camera.
and
savings, and ease-of-deployment companies with a sophisticated HD/SD
For Season One, we used a competitor
production
alongside secure encrypted wireless transmission solution that
but the product wasn’t reliable and companies transmissions. All broadcasters now performs extremely well for their
then I met Scott at NAB 2008 and
with a
have a sophisticated HD/SD, zero requirements pushing creative
bought three of the Boxx systems. I
sophisticated
delay, wireless transmission system boundaries without the hefty price tag.
have been extraordinarily happy; it’s
HD/SD
available to them that allows them to Meridian was launched at NAB 2009
incredibly robust.” turn up, switch on and begin filming to award-winning acclaim and it sits
John Ford, video division manager,
wireless
with a range of up to 200 metres. alongside the company’s established
HMS Media, uses Cobalt for video transmission The core transmission/reception product range. Since inception, Boxx TV
assist - a facility that allows the
solution that
technology behind Meridian is based has built up a portfolio of high-quality,
director to see what the camera
performs
on MIMO, a form of smart antenna low cost wireless transmission
operator sees. He said: “The Boxx
extremely
technology (Multiple Input/Multiple technologies to meet the specific
system has always been rock solid. I Output), which uses multiple antennas needs of camera operators regardless
have used lots of different RF systems
well...
at the transmitter and receiver points of budget. Boxx also has systems in
where I was pulling my hair losing the
without the
delivering a significant increase in data development including:
signal. Traditionally, when you are hefty price throughput and link range without the • Cerulean - a robust point-to-point
working alone or with one assistant,
tag
need for additional bandwidth or HD JPEG2000 transmission using
COFDM systems can be difficult to set power. The antennas at each end of unlicensed 5GHz wi-fi channels.
up but with the Boxx system you plug the communications circuit are • Azure - a live-to-air 3G technology
in and start shooting - it’s that simple. I combined to minimise errors and using bonded mobile phone networks
had an instance recently on a shoot in optimise data speed. to transmit full frame, high quality, live
Vegas where the director was used to Wireless range can be extended by camera feeds.
36 l ibe l may/june 2009 l www.ibeweb.com
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