eng TELE-audiovision 1305
The World’s Largest Digital TV Trade Magazine
The World’s Largest Digital TV Trade Magazine
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tioned in a way that allows<br />
pointing the remote control<br />
towards it without having to<br />
dislocate your arm.<br />
Thanks to a very useful<br />
LED on each of the two units<br />
it is easy to check the operating<br />
mode of the tvLINK HD<br />
at any time. If the LED flashes<br />
there is no connection or<br />
the transmission unit does<br />
not receive any AV signal. If<br />
it lights up permanently an<br />
AV signal is being transmitted<br />
and is ready for use at<br />
the reception unit.<br />
Shortly after we had installed<br />
the tvLINK HD system<br />
and turned on power the<br />
two units began to establish<br />
a connection via roughly 25<br />
meters of coax cable, and<br />
after only a few moments<br />
the blue LEDs indicated that<br />
all went according to plan.<br />
When we then provided the<br />
signal of our satellite receiver<br />
to the HDMI input of the<br />
transmission unit it was sent<br />
immediately to the reception<br />
unit and from there it was<br />
passed on to the LCD panel<br />
in our editorial office.<br />
Since we never take our<br />
job lightly, even the first<br />
task we threw at the tvLINK<br />
HD was one of the toughest:<br />
We wanted nothing less then<br />
flawless transmission of a<br />
1080p Full HD signal – and<br />
that’s what we got! Not for<br />
a single second did the sys-<br />
tem appear to be struggling,<br />
and obviously this means all<br />
available resolutions such<br />
as 1080p 60Hz, 1080p 50<br />
Hz, 1080p 24 Hz, 1080i 60<br />
Hz, 1080i 50 Hz, 720p 60<br />
Hz, 720p 50 Hz, 576p 50 Hz,<br />
480p 60 Hz and 480i 60 Hz<br />
will work in the blink of eye.<br />
We know there will be readers<br />
out there looking for a<br />
drawback and many will like<br />
to know what happens to<br />
HDCP (read: copy-protected)<br />
content. We can put your<br />
mind at ease: The tvLINK HD<br />
will happily support HDCP.<br />
We looked long and hard<br />
at the output signal provided<br />
by the reception unit and<br />
were unable to notice any<br />
difference at all between the<br />
original video and the video<br />
transmitted via the tvLINK<br />
HD system.<br />
In order for all this to work<br />
as brilliantly as it does, a<br />
considerable amount of processing<br />
power is required<br />
in the transmitting unit for<br />
compressing the original format<br />
into H.264/MPEG4-AVC,<br />
resulting in a minor time lag.<br />
In everyday use, however,<br />
this is irrelevant and the<br />
digital receiver will also react<br />
to remote commands with<br />
hardly noticeable delay.<br />
On the other hand, those<br />
of you using the system in<br />
connection with your games<br />
consoles will find that the<br />
controller in your hands<br />
might not react as swiftly as<br />
you are used to.<br />
Speaking of remote controls<br />
and controllers: The<br />
IR transmitter and IR receiver<br />
of the tvLINK HD<br />
system use the frequency<br />
range between 34 kHz and<br />
38 kHz which guarantees<br />
compatibility with virtually<br />
all standard remote controls.<br />
We have a number of different<br />
remotes lying around in<br />
our test lab, and no matter<br />
which one we tried they all<br />
worked perfectly in combination<br />
with the tvLINK HD.<br />
In contrast to HDMI signal<br />
transmissions via WiFi<br />
34 <strong>TELE</strong>-<strong>audiovision</strong> International — The World‘s Largest Digital TV Trade Magazine — 05-06/2013 — www.<strong>TELE</strong>-<strong>audiovision</strong>.com<br />
maximum range is not such<br />
a major issue with the tv-<br />
LINK HD system. We used<br />
almost 100 meters of coax<br />
cable with reasonable quality<br />
in our office and did not<br />
experience any interference<br />
or dropouts. Signal switches<br />
with two outputs also worked<br />
beautifully.<br />
One feature we cannot<br />
praise highly enough is the<br />
USB socket that is built into<br />
both the transmission and<br />
the reception units. It allows<br />
users to load new firmware<br />
right at the devices to make<br />
sure added features and improved<br />
functions are made<br />
available as conveniently
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