DVB-S2 7301 PCI

A DVB-S2 PCI card from Prof.

The Prof 7301 is supported under Linux since kernel 2.6.33.

Overview/Features

• PCI interface
• Inputs: LNB in, Remote in
• Output: LNB Loop out

Components Used

• STB6100 (Tuner)
• STV0903B (Demodulator)
• CX23883-39 (PCI Audio/Video Broadcast Decoder)

Identification

# lspci -vvv

05:00.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI
Video and Audio Decoder (rev 05)
Subsystem: Device b034:3034
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- 
SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
Latency: 32 (5000ns min, 13750ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 20
Region 0: Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: <access denied>
Kernel driver in use: cx8800
Kernel modules: cx8800

05:00.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video 
and Audio Decoder [MPEG Port] (rev 05)
Subsystem: Device b034:3034
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- 
SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
Latency: 32 (1500ns min, 22000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 20
Region 0: Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: <access denied>
Kernel driver in use: cx88-mpeg driver manager
Kernel modules: cx8802

Making it Work

Supported in the kernel since 2.6.33.

Firmware

No firmware required.

Drivers

The demod will not lock high bitrate HD TV feeds with the standard kernel driver. The Pendragon patch fixes this issue. For more information see here... [1]

For blind scanning support using chinesebob's blindscan-S2 [2] you will also need the UDL patch [3]

If you wish to tune the card with old apps that have not been ported to S2API reverse this patch [4] and the card will tune DVB-S or DVB-S2 without having to manually specify one or the other.

With all these patches applied all that is necessary to tune the card is the frequency, any relevant switching control and any symbol rate between 1000 and 45000. As long as the frequency is close the card will quickly blind scan all the other parameters including symbol rate. dvbsnoop -s feinfo will provide the current tuned parameters.

Sample Kernel Output

# dmesg

Remote Control Support

Untested.

External Links

http://proftuners.com/prof7301.html Manufacturers Website.