The Terratec Cinergy DT USB XS Diversity is one of the first Diversity devices to reach the market.
Diversity allows you to take the best parts of the signal from two aerial sources and combine them to create the best signal possible.
The box includes everything you will need to use the Cinergy DT USB XS Diversity straight away.
Installation is as simple as inserting the device into a USB 2 socket, popping the driver CD into the drive and installing the software. After plugging the aerials in and scanning for channels using the Terratec Home Cinema software you are free to watch.
To test the diversity mode I decided to see if the included aerials were capable of holding a BBC1 signal whilst on the move in a car. I stuck the aerials to the two separate side windows of the car, turned on the Diversity mode, and tuned into BBC1.
I was not expecting the channel to remain watchable, but to my surprise the channel was rock solid whilst I was driving at 40Mph. Even going around corners and driving into built up areas did not disrupt the signal! Quite impressive.
After testing using my laptop – as if I was a mobile user – I decided to see if the little USB device was good enough to use in another of its likely locations, in the home.
The reason I class this as a likely location for use is because media center PCs are getting slimmer and slimmer, and most PCI/PCI-E dual DVB-T tuners are full height cards and won't fit in some of the smaller cases. This means that if you want a dual DVB-T tuner, the easiest way is to use an external one like the Cinergy DT USB XS Diversity.
To test the device in these conditions, I connected it to the Vista Media Center PC that I have been building to replace my Sky+ installation.
I was looking for a USB or half height dual DVB-T tuner, and when I had the chance to test the Cinergy device I jumped on it. The device fills all my needs: it should be reliable and well performing based on my previous tests of the XS's big brother the Cinergy 2400i DT, it is also well built and includes all the necessary drivers for Vista Media Center.
I scheduled some recordings, making sure that some of them overlapped so I could test the Cinergy DT USB XS Diversity's abilities when recording two channels at once, as this usually shows up any issues that may exist with bandwidth on the device and between the device and the PC.
No issues located however; the Cinergy DT USB XS Diversity records two channels without any issues, and there is no sign of skipping and stuttering in the recordings, even on the channels that are difficult for some tuners to receive (Sky3/UKTV History).
The Cinergy DT USB XS Diversity is a great USB receiver. It is well built with a nice design, it has some really good features with the dual aerial inputs and the Diversity functionality. The only issue that I can see is that at the moment the Diversity functionality is only available when using the Terratec software, however some third party applications will enable its use shortly.
I can recommend this card to any laptop user that travels and would like to take a TV with them. I will also heartily recommend the device to anyone who does not have space in their Media Center PC for a full height card. The USB device could also be used to add two more tuners to an existing dual tuner Media Center setup, therefore allowing you to record three channels whilst watching a fourth (registry hacking is required to enable this).
The device retails for around 75GBP (111Euro/144USD) and for that price it is more expensive than some of its competition, but the build quality and Diversity functionality more than make up for the small price difference. Support seems to be as good with this device as with the Cinergy 2400i DT in that there is already 32 and 64bit BDA drivers for Vista available.
It is also worth noting that Terratec also sell an Apple version of the device, so even OSX users need not feel left out.