Marmitek PC to TV SENDER Manuel d'utilisateur télécharger pdf (Page 2)

94 What Satellite & Digital TV April 2011

Standing 195mm tall and tipping the scales at

270g per unit each, the iTrio has just about the

largest units on test here, oﬀ ering a wide range

of connection options. Choose from two HDMI v1.1

inputs, Scart PC VGA/component (a VGA-to-component

adapter lead is enclosed in the box) and a stereo mini

jack audio input. The receiver unit has HDMI, Scart

and component outputs.

Rather bizarrely (for a wireless

sender), there is also a wired LAN

option on both units, although the

manual warns you away from it

declaring the connection for

‘professional use only.’

Eminent tells us that this facility is

actually being used in shopping centres to

get video to up to ﬁ ve distribution points for advertising

purposes. There’s also a USB input on the receiver; this is

not for additional media playback options (although that

would be nice), but ﬁ rmware upgrades.

Included is a small credit card remote control and a

standard three-bulb IR extension zapper. You can also

manually cycle through the inputs using a tiny button on

each front fascia. For our ﬁ rst test, the HDMI output from

our Sky+HD was plumbed into the transmitter. For the

units to link you need to ensure the receiver is synced to

the correct input source. During our tests, the transmitter

did not auto detect connected sources, which meant we

Marmitek’s Gigaview 820 looks like a serious

contender even before it’s plugged in. The

transmitter and receiver units are nearly as large

as the iTrio units, but have a pleasing, sweeping design

and a glossy black ﬁ nish. Rather thoughtfully, the units

come with rawl plugs and a mounting plate should you

wish to wall-mount them near or behind kit.

Because the transmitter has two HDMI inputs plus one

loopthrough HDMI output you can have the same video

and audio running in two rooms on two displays.

Without it you would need to use a separate switching

device to feed both your main viewing screen and the

video sender.

In addition to this improved HDMI connectivity, there

is also a mini jack for a supplied IR repeater, a USB

connection for ﬁ rmware updates and a simple remote

control to select HDMI inputs. Once powered up, the

Gigaview 820 takes longer than its rivals to locate and

lock to its stablemate receiver. However, once connected,

both hi-def and SD transmissions stream without judder.

A standard IR blaster extension connects to the

transmitter and there’s an optional IR collector that plugs

into the receiver, which is helpful should you wish to

place the unit out of sight.

Our second challenge, which involved streaming

1080p from a Blu-ray player in another room, really saw

the Gigaview 820 come into its own. Not only was a

Dolby Digital 5.1 bitstream delivered to our waiting AV

receiver, when we switched the Blu-ray player from a

bitstream output to multi-channel PCM this too was

transmitted eﬀ ortlessly – all without any low-level

background noise. The Gigaview 820 is the only system

in the group able to transmit and deliver multichannel

PCM. The system’s video performance is equally

praiseworthy. The transmitter streamed our 1080p test

material without stutters, judders or slipped frames.

Eminent iTrio EM 7 100

■ www.eminent-online.com ■ £399

Ratings

PLUS

■ Wide range of signal input

options

■ Only system to oﬀ er a legacy

Scart output from the receiver

MINUS

■ Receiver delivers stereo PCM

output only

■ Smooth motion compromised

by occasional judder and frame

skips

■ No HDMI loopthrough on

transmitter

Build

★★★★★★★★★★

Setup

★★★★★★★★★★

Performance

★★★★★★★★★★

Features

★★★★★★★★★★

Value

★★★★★★★★★★

68%

Marmitek Gigaview 820

■ www.keene.co.uk ■ £260

Ratings

PLUS

■ HDMI loopthrough on the

transmitter

■ Supports bitstream audio and

multichannel PCM

■ Excellent video performance

MINUS

■ Transmit and receive units a

little on the large size

Build

★★★★★★★★★★

Setup

★★★★★★★★★★

Performance

★★★★★★★★★★

Features

★★★★★★★★★★

Value

★★★★★★★★★★

88%

had to scroll through the options to pair the units up.

Audiovisual performance is average. There were no

signiﬁ cantly intrusive compression artefacts incurred

during the process. However, scrolling onscreen

movement can stutter and skip. We also detected a low

level of background audio hiss, but this would be

masked by most programme material. Audio from our

Blu-ray player was delivered to our receiver unit as stereo

PCM. The Dolby Digital 5.1 bitstream never made it

through the ether. Instructing our BD player to internally

convert to multichannel PCM didn’t help either. The

output from the receiver remained stereo PCM.

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