UHD-Linuxreceiver: Dinobot 4K Twin im Test

Test Dinobot 4K Twin

The Dinobot brand from China has established another device with an Enigma2 interface on the market. At the Dinobot 4K Twin is a set-top box with a twin satellite tuner in the budget range. We take a closer look at the compact receiver.

This test first appeared in Digital Fernsehen 07/2021

At the low price of 99 euros, the Dinobot 4k Twin comes with impressive equipment. The receiver receives digital television up to UHD either via two independently usable DVB-S2x tuners. The box looks chic in the small but stylish looking case. A WLAN receiver unit is integrated in the box.

How is the Dinobot 4K Twin equipped?

Incidentally, Dinobot has given the device a four-digit numeric display on the front. This permanently displays the time and only briefly switches to channel number mode when the channel is changed. The power switch is installed on the left side. The control panel with the basic controls including the control pad is located in the middle. There is a flap on the right, behind which a CA card reader can be found. Unfortunately, neither an SD card slot nor USB ports can be found on the front of the device. Two USB ports – one of which is USB 3.0 – are located on the back. Unfortunately, it is not usually possible to integrate a removable data medium so quickly if the receiver is permanently installed in the rack.

Test Dinobot 4K Twin
Thanks to the connectable WLAN antenna included in the scope of delivery, the box can also be connected to the Internet in places where there is no Ethernet cable

In addition, there is a network connection, the HDMI output and a jack socket on the back, which outputs analogue FBAS signals and enables older tube televisions to be connected. However, a suitable breakout cable to cinch is not included with the receiver. One or the other reader will now miss a digital audio output. Unfortunately, the Dinobot 4K Twin does not have this to offer, such signals can only be output to AV receivers via HDMI. On the other hand, praiseworthy: Dinobot equips the twin receiver with an external infrared sensor, which is included in the scope of delivery and can be plugged into the jack socket provided on the back of the box. Thus, the device can also be set up hidden.

Finally, there is a serial interface at the rear. Compared to the previous Dinobot devices, however, the MicroSD card reader is missing. This was always very practical for making a full-fledged PVR receiver out of the small devices using a tiny SD memory card. With the 4K Twin model, this can now only be done via USB or a network drive
will be realized.

Test Dinobot 4K Twin
As soon as HbbTV is activated, the Dinobot 4K Twin convinces with fast navigation times and high reliability

What else does the receiver bring?

The receiver comes with a large remote control. This is equipped with numerous function keys. The signal transmitter lies well in the hand and we don’t have to criticize anything when it comes to pressure points.
The double tuner receiver is delivered with the current version 6.4 of Open-ATV. Of course, any other Enigma2 image can also be uploaded. With the factory image, the device has PVR functions and HbbTV is also supported. To do this, however, a suitable plugin must first be installed on the device. This is done from the extensions menu.


The cheap box does not show any weaknesses in everyday use. The device boots from a cold start in around 30 seconds. The box is not only fast when booting, but also when changing channels. At 1.25 seconds, it can easily keep up with the competition. We also liked the brisk speed of HbbTV. The menus are structured without delay and the navigation within the hybrid service leaves nothing to be desired. The same applies to navigating through the receiver’s menus and calling up additional functions such as EPG or other services.

Test Dinobot 4K Twin
The user can adjust the image settings independently. The Dinobot outputs signals in a resolution of up to 2160p

The EPG can be used by the user in the desired view, of course timer programming can be done quickly and easily from the program guide. The lead time and follow-up time of this timer is set once in advance in the menu. Teletext is also permanently integrated. The user can once again let off steam with the channel lists, because even if a well-sorted list is pre-installed, it can be individually adjusted as usual. Creating favorites lists is just as possible as importing your own station list with “DreamboxEdit”.

Extensions possible with plugins

The individuality and attractiveness of Enigma2 devices largely depends on the plugins. There are also a lot of them for the Dinobot 4K Twin, and so the device can be significantly upgraded with it. In addition to HbbTV, the standard candidates also include the media player and the media center. With other skins, the area of ​​appearance of the device can sometimes be dramatically changed, as far as the appearance of the menu and OSD is concerned. Here, too, numerous different skins are available.

Test Dinobot 4K Twin
Practical on the OpenATV image: The buttons on the remote control can be reassigned individually using the hotkey function

How good is the reception?

The integrated twin receiver unit receives stations in the DVB-S, DVB-S2 and DVB-S2x standards. Multistream reception is also available. With a measured minus 85 dBm, the sensitivity is in the average range. In the test, we also found that the receiver can handle symbol rates down to a minimum of 1000 symbols and thus also delivers a good yield in the SCPC reception range.

DiSEqC support is perfectly mastered under OpenATV. Regardless of whether it is a rotary system, large multi-feed unit or unicable system, the box can handle all available protocols and can therefore also process very well-equipped multi-feed systems with 16 or more LNBs. In addition, the single-cable standard JESS/EN50607 can also be used under Enigma2.

Test Dinobot 4K Twin
Of course, timers can also be programmed in no time at all via the program guide. Simply press the green button on the program you want

The blind scan is undoubtedly one of the advantages of the inexpensive 4K receiver. We check the functionality first on the Türksat position. In a blind scan, 78 transponders are detected here within just two minutes. The subsequent channel search on all found transponders reveals 654 channels. The blind scan already works very convincingly in this position. This good impression also continues when checking at 3 degrees East, a position with a large number of narrow-band transponders.

The result is also convincing on this Eutelsat satellite system. 38 transponders, including transponders with symbol rates just over 1,000 megasymbols, are detected. 59 channels finally appear in the channel list. We also achieve convincing scan results in the C and KU bands. A small drop of bitterness: DiSEqC commands are not properly processed during the blind scan, which means that this currently only makes sense on systems. that do without a DiSEqC switch. In addition, the Dinobot 4k Twin displays incorrect SNR values. It’s all a question of the drivers, it remains to be hoped that the shortcomings diagnosed in China will be eliminated.

Test Dinobot 4K Twin

Can you record with the Dinobot 4K Twin?

A hard drive can only be operated externally on the Dinobot 4K Twin. It is best to connect them via USB 3.0 on the back. A more stable power supply is guaranteed here, especially when 2.5-inch hard drives are connected, since the specifications for USB 3.0 specify higher currents. In addition, you then benefit from a faster data transmission speed. Parallel recordings are possible without restrictions if the satellite cabling is correct. Of course, recordings and playback via the network are also possible. The inexpensive twin receiver offers the same options that are already known from other Enigma2 digital receivers.

The picture quality is that good

The image quality also offers no cause for criticism. The recorded test sequences are displayed on our test monitors without any defects. Ultra HD sequences can also be played back perfectly. When it comes to energy consumption, the box meets EU requirements. With only 0.3 watts in “deep standby mode”, the consumption is within limits. In the operating state, the Dinobot receiver is rather frugal and draws a maximum of nine watts without a hard drive connected.

Conclusion: is it worth buying?

If you are looking for a cheap twin tuner receiver that can also process 4K signals well, you will be happy with the Dinobot 4K Twin. Sat DXers can also get involved with the device, which has almost everything the sat freak needs in terms of hardware. Only small programming weakness

This test first appeared in Digital Fernsehen 07/2021

Source: DIGITAL FERNSEHEN by www.digitalfernsehen.de.

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