EVGA inDtube: Difference between revisions
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Making it work is pretty simple, below is a simple modification to the standard ATSC frequency list which has the wrong center frequencies for this tuner. |
Making it work is pretty simple, below is a simple modification to the standard ATSC frequency list which has the wrong center frequencies for this tuner. |
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Using vim or your favorite text editor modify the center frequencies in the intial-tuning-data contained in the text file /usr/share/dvb/us-ATSC-center-frequencies-8VSB and save it in /usr/share/dvb/atsc as my-ATSC. You need to subtract roughly 400 Khz from each center frequency. |
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I subtracted 403615 Hz from each frequency so it falls in the exact center of what the InDtube Tuner can lock. From then on be sure to specify this file when scanning for channels with scan: |
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when scanning for channels with scan: |
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head us-ATSC-center-frequencies-8VSB |
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# US ATSC center frequencies, use if in doubt |
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<nowiki> |
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/usr/share/dvb/atsc$ cat my-ATSC |
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head my-ATSC |
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# MY ATSC center frequencies, use for inDtube ATSC Tuner |
# MY ATSC center frequencies, use for inDtube ATSC Tuner |
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A 56625000 8VSB |
A 56625000 8VSB |
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A 188625000 8VSB |
A 188625000 8VSB |
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A 194625000 8VSB |
A 194625000 8VSB |
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Scanning for channels. |
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A 502625000 8VSB |
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A 508625000 8VSB |
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A 514625000 8VSB |
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A 520625000 8VSB |
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A 526625000 8VSB |
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A 532625000 8VSB |
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A 538625000 8VSB |
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A 544625000 8VSB |
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A 550625000 8VSB |
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A 556625000 8VSB |
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A 562625000 8VSB |
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A 568625000 8VSB |
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A 574625000 8VSB |
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A 580625000 8VSB |
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A 586625000 8VSB |
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A 592625000 8VSB |
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A 598625000 8VSB |
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A 604625000 8VSB |
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A 610625000 8VSB |
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A 616625000 8VSB |
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A 622625000 8VSB |
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A 628625000 8VSB |
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A 634625000 8VSB |
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A 640625000 8VSB |
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A 646625000 8VSB |
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A 652625000 8VSB |
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A 658625000 8VSB |
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A 664625000 8VSB |
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A 670625000 8VSB |
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A 676625000 8VSB |
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A 682625000 8VSB |
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A 688625000 8VSB |
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A 694625000 8VSB |
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A 700625000 8VSB |
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A 706625000 8VSB |
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A 712625000 8VSB |
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A 718625000 8VSB |
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A 724625000 8VSB |
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A 730625000 8VSB |
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A 736625000 8VSB |
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A 742625000 8VSB |
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A 748625000 8VSB |
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A 754625000 8VSB |
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A 760625000 8VSB |
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A 766625000 8VSB |
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A 772625000 8VSB |
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A 778625000 8VSB |
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A 784625000 8VSB |
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A 790625000 8VSB |
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A 796625000 8VSB |
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A 802625000 8VSB</nowiki> |
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Revision as of 17:46, 11 June 2011
A hybrid ATSC USB 2.0 device by Evga.
Overview/Features
This device supports ATSC (i.e. OTA Digital TV) and analog NTSC. The package includes a small telescoping monopole antenna and a short USB extension cable, a remote control, and a connector to svideo or composite video inputs.
Components used:
- (tuner & analog demodulator)
- (digital demodulator)
- (video decoder)
- Empiatech em2883 (USB bridge and analog audio)
Identification
The device identifies itself as a "eMPIA Technology, Inc" and the subsystem information provided by lsusb -v is ebla:2883.
Making it Work
This tuner is very difficult to get to find channels when scanning OTA ATSC. There is a thread about getting it to work which assuming you are familiar with the concept of frequency lists, as defined in /usr/share/dvb/atsc is very helpful at http://www.digitalhome.ca/forum/showthread.php?t=134023
Making it work is pretty simple, below is a simple modification to the standard ATSC frequency list which has the wrong center frequencies for this tuner. Using vim or your favorite text editor modify the center frequencies in the intial-tuning-data contained in the text file /usr/share/dvb/us-ATSC-center-frequencies-8VSB and save it in /usr/share/dvb/atsc as my-ATSC. You need to subtract roughly 400 Khz from each center frequency. I subtracted 403615 Hz from each frequency so it falls in the exact center of what the InDtube Tuner can lock. From then on be sure to specify this file when scanning for channels with scan:
head us-ATSC-center-frequencies-8VSB
- US ATSC center frequencies, use if in doubt
A 57028615 8VSB A 63028615 8VSB A 69028615 8VSB A 79028615 8VSB A 85028615 8VSB A 177028615 8VSB A 183028615 8VSB A 189028615 8VSB
head my-ATSC
- MY ATSC center frequencies, use for inDtube ATSC Tuner
A 56625000 8VSB A 62625000 8VSB A 68625000 8VSB A 78625000 8VSB A 84625000 8VSB A 176625000 8VSB A 182625000 8VSB A 188625000 8VSB A 194625000 8VSB
Scanning for channels. scan -a 1 /usr/share/dvb/atsc/my-ATSC -o zap mychannels.conf