Astrometa DVB-T2
This device is commonly found on E-commerce sites that ship directly from China. The hardware supports DVB-C, DVB-T and DVB-T2.
Support
DVB-T supported since kernel 3.13, DVB-T2 since 4.6. Drivers being developed support DVB-C with 64QAM/128QAM, but not 256QAM.
Components
From 2014 to 2017, the device was usually shipped with these components:
- USB interface: Realtek RTL2832P
- Demodulator: Panasonic MN88473 (2013 revision: MN88472)
- Tuner: Rafael Micro R828D (TVR801: R820T)
The different revisions of the Astrometa DVB-T2 have been released under many different "brand" names. This page cannot list all of them. If you buy a new tuner from an unknown or no brand for under 30 euros or so, you will probably get some Astrometa clone.
2013 and 2014 revision look very similar. Probably, the text on the 2013 revision always reads "FM+DAB+SDR", while the 2014 one says "DVB-T/T2/C+FM+DAB". However, seller pictures do not always reflect that change and one could end up buying a random version even years later.
The 2014 revision version is also sold as "Andoer Digital DVBT2 USB TV Stick" or "Docooler YRC1415458446568TZ". Those devices are identical in appearance to the usual Astrometa devices.
TeVii sells a similar device under the name "H630". The case is black. The PCB layout is a bit different, e.g. the IR sensor is in a different position.
There is a version of the device called TVR801, which uses an unlabelled Rafael Micro R820T tuner. According to official sources, this one does not support DVB-C.
In 2017, a clone of the 2014 version with a red PCB (original Astrometa one's is green) also appeared on E-commerce sites that ship from China. The case looks like the H630's, but is white with silver text that reads "DVB-T/T2/C/FM/DAB". This device is shipped in bulk in just a plastic bag with a simple stick antenna, a remote control (21 buttons) and a Mini CD that dates to 09 Jan 2017. Some sellers call it OXA ZC905500 or S SKYEE. It is also sold under the name "iViewHD" inside the case of the TVR801 and its antenna has an USB-powered amplifier. See 2018 update below!
In 2018 several clones are being shipped using the Sony CXD2837 chipset. This has a driver from kernel 4.14 onwards (it is now covered by the cxd2841er driver), but the device as a whole does not work because the RTL2832 driver has not been updated to recognise it. However, updated RTL2832 driver has been accepted to the media_tree (as mentioned here) so you can compile it yourself (see How to Obtain, Build and Install V4L-DVB Device Drivers#Retrieving_from_the_upstream_development_Kernel_tree) or use a specialized distribution such as LibreELEC (kodi appliance) which supports this device out-of-the-box, provided you enable the bundled "DVB drivers from the latest kernel (media_build)" add-on. These changes will most likely be included in the next mainline kernel. In most cases the RTL chip does not appear to be connected to the tuner, so these devices will not work for DVB-T either. Even though the chipset is different and incompatible, the same USB vendor and product IDs are used (15f4:0131). The clones with the Sony demodulator reported so far are:
- Blue coloured PCB either with a white case or a black case, both with silver writing. You (or a potential seller) can tell if this uses an incompatible Sony chip by holding it in front of (or for the black ones: directly under) a light source and see the colour of the PCB through the holes. dmesg output, lsusb -vvv output and PCB photos here
- Green coloured PCB with a case matching the 2014 revision. The only way to tell if this uses the Sony chip (or is the 2014 revision with working Panasonic chipset) is to open the case and read the part number on the chip.
All these models share the same USB IDs.
In late 2015, a version with analog video input and analog tuning capabilities was released, powered by the Conexant CX23102-11Z USB bridge. It has a different device ID (0135) and is a different device. Support is unknown.
| 2013 revision | 2014 revision | TVR801 | 2017 revision | 2018 revision | 2015 revision: DVB+Analog TV | |
|---|---|---|---|---|---|---|
| Sample promo shot |
 (some may look like the 2014 revision) |
 (some may look like the 2013 revision) |
 (case also used for other revisions or devices, often without the text) |
|
 or same as 2014 or 2017 revision |
|
| Bottom PCB | same as 2014 revision (different demod, no number 1422) |
 ("1422" and text missing sometimes) |
|
|
|
|
| Top PCB | same as 2014 revision | 
|
|
|
|
|
| USB Bridge | Realtek RTL2832P | Realtek RTL2832P | Realtek RTL2832P | Realtek RTL2832P | Realtek RTL2832P | Conexant CX23102-11Z |
| Demod | Panasonic MN88472 (said to not support DVB-T2 v1.3.1, which is used in e.g. Germany) |
Panasonic MN88473 | Panasonic MN88473 | Panasonic MN88473 | Sony CXD2837ER | Panasonic MN88473 |
| Tuner | Rafael Micro R828D | Rafael Micro R828D | Rafael Micro R820T (probably doesn't support DVB-C) |
Rafael Micro R828D | Rafael Micro R828D or AT628 (same as R828D) |
Rafael Micro R828D |
| USB IDs | 15f4:0131 (Hanftek) | 15f4:0131 (Hanftek) | 15f4:0131 (Hanftek) | 15f4:0131 (Hanftek) | 15f4:0131 (Hanftek) | 15f4:0135 (Hanftek) |
| Supported | yes | yes | most likely | yes | most likely since 5.0 | unknown |
PCBs of TVR801 and 2017 revision have the same color, the difference on the pictures comes from different lighting. There is another rare version described in Antti's blog, which pretty much the 2017 revision with a green PCB (and has some very little differences).
RTL2832P configuration
The RTL2832P has 2 PID filter paths. One for the internal demod and one for a possible external one.
External ts mode
0x21[3] enable_ETS, set to enable external ts input 0x21[5] pass_err, when set reject error packets 0x21[6] PID_mode, when set reject matched PIDs 0x21[7] PID_output, when set output data from enabled PID filters 0x22[7-0] PID_enable, when set enable PID in corresponding register (0-7) 0x23[7-0] PID_enable, when set enable PID in corresponding register (8-15) 0x24[7-0] PID_enable, when set enable PID in corresponding register (16-23) 0x25[7-0] PID_enable, when set enable PID in corresponding register (24-31) 0x26-0x27[12-0] PID_0, PID storage register 13 bits wide 0x28-0x29[12-0] PID_1, PID storage register 13 bits wide 0x2A-0x2B[12-0] PID_2, PID storage register 13 bits wide 0x2C-0x2D[12-0] PID_3, PID storage register 13 bits wide 0x2E-0x2F[12-0] PID_4, PID storage register 13 bits wide 0x30-0x31[12-0] PID_5, PID storage register 13 bits wide 0x32-0x33[12-0] PID_6, PID storage register 13 bits wide 0x34-0x35[12-0] PID_7, PID storage register 13 bits wide 0x36-0x37[12-0] PID_8, PID storage register 13 bits wide 0x38-0x39[12-0] PID_9, PID storage register 13 bits wide 0x3A-0x3B[12-0] PID_10, PID storage register 13 bits wide 0x3C-0x3D[12-0] PID_11, PID storage register 13 bits wide 0x3E-0x3F[12-0] PID_12, PID storage register 13 bits wide 0x40-0x41[12-0] PID_13, PID storage register 13 bits wide 0x42-0x43[12-0] PID_14, PID storage register 13 bits wide 0x44-0x45[12-0] PID_15, PID storage register 13 bits wide 0x46-0x47[12-0] PID_16, PID storage register 13 bits wide 0x48-0x49[12-0] PID_17, PID storage register 13 bits wide 0x4A-0x4B[12-0] PID_18, PID storage register 13 bits wide 0x4C-0x4D[12-0] PID_19, PID storage register 13 bits wide 0x4E-0x4F[12-0] PID_20, PID storage register 13 bits wide 0x50-0x51[12-0] PID_21, PID storage register 13 bits wide 0x52-0x53[12-0] PID_22, PID storage register 13 bits wide 0x54-0x55[12-0] PID_23, PID storage register 13 bits wide 0x56-0x57[12-0] PID_24, PID storage register 13 bits wide 0x58-0x59[12-0] PID_25, PID storage register 13 bits wide 0x5A-0x5B[12-0] PID_26, PID storage register 13 bits wide 0x5C-0x5D[12-0] PID_27, PID storage register 13 bits wide 0x5E-0x5F[12-0] PID_28, PID storage register 13 bits wide These filters would overlap with the internal ts address space. 0x60-0x61[12-0] PID_29, PID storage register 13 bits wide 0x62-0x63[12-0] PID_30, PID storage register 13 bits wide 0x64-0x65[12-0] PID_31, PID storage register 13 bits wide Most likely the the external PID filter path has less then 32 pid filters.
Internal ts mode
0x61[5] pass_err, when set reject error packets 0x61[6] PID_mode, when set reject matched PIDs 0x61[7] PID_output, when set output data from enabled PID filters 0x62[7-0] PID_enable, when set enable PID in corresponding register (0-7) 0x63[7-0] PID_enable, when set enable PID in corresponding register (8-15) 0x64[7-0] PID_enable, when set enable PID in corresponding register (16-23) 0x65[7-0] PID_enable, when set enable PID in corresponding register (24-31) 0x66-0x67[12-0] PID_0, PID storage register 13 bits wide 0x68-0x69[12-0] PID_1, PID storage register 13 bits wide 0x6A-0x6B[12-0] PID_2, PID storage register 13 bits wide 0x6C-0x6D[12-0] PID_3, PID storage register 13 bits wide 0x6E-0x6F[12-0] PID_4, PID storage register 13 bits wide 0x70-0x71[12-0] PID_5, PID storage register 13 bits wide 0x72-0x73[12-0] PID_6, PID storage register 13 bits wide 0x74-0x75[12-0] PID_7, PID storage register 13 bits wide 0x76-0x77[12-0] PID_8, PID storage register 13 bits wide 0x78-0x79[12-0] PID_9, PID storage register 13 bits wide 0x7A-0x7B[12-0] PID_10, PID storage register 13 bits wide 0x7C-0x7D[12-0] PID_11, PID storage register 13 bits wide 0x7E-0x7F[12-0] PID_12, PID storage register 13 bits wide 0x80-0x81[12-0] PID_13, PID storage register 13 bits wide 0x82-0x83[12-0] PID_14, PID storage register 13 bits wide 0x84-0x85[12-0] PID_15, PID storage register 13 bits wide 0x86-0x87[12-0] PID_16, PID storage register 13 bits wide 0x88-0x89[12-0] PID_17, PID storage register 13 bits wide 0x8A-0x8B[12-0] PID_18, PID storage register 13 bits wide 0x8C-0x8D[12-0] PID_19, PID storage register 13 bits wide 0x8E-0x8F[12-0] PID_20, PID storage register 13 bits wide 0x90-0x91[12-0] PID_21, PID storage register 13 bits wide 0x92-0x93[12-0] PID_22, PID storage register 13 bits wide 0x94-0x95[12-0] PID_23, PID storage register 13 bits wide 0x96-0x97[12-0] PID_24, PID storage register 13 bits wide 0x98-0x99[12-0] PID_25, PID storage register 13 bits wide 0x9A-0x9B[12-0] PID_26, PID storage register 13 bits wide 0x9C-0x9D[12-0] PID_27, PID storage register 13 bits wide 0x9E-0x9F[12-0] PID_28, PID storage register 13 bits wide 0xA0-0xA1[12-0] PID_29, PID storage register 13 bits wide 0xA2-0xA3[12-0] PID_30, PID storage register 13 bits wide 0xA4-0xA5[12-0] PID_31, PID storage register 13 bits wide