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
Original revision (2013):
- USB interface: Realtek RTL2832P
- Demodulator: Panasonic MN88472 (2014 revision: MN88473)
- Tuner: Rafael Micro R828D (TVR801: R820T)
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.
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. See 2018 update below!
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.
All these models share the same USB IDs.
In late 2015, a version with analog video input 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.
In 2018 the aforementioned clone with the silver text has been modified to use the Sony CXD2837 chipset for DVB-T2, for which a driver is not in the mainline Linux kernel. Even though the chipset is different and incompatible, the same USB vendor and product IDs are used (15f4:0131). The PCB color is blue. The out-of-tree driver "cxd2843.ko" supposedly works for this chip. dmesg output, lsusb -vvv output and PCB fotos here.
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