* [linux-dvb] how to get the SNR DB value for DVICO DVB-T Dual express card
@ 2009-05-26 18:37 Tu-Tu Yu
2009-05-27 8:05 ` Antti Palosaari
0 siblings, 1 reply; 2+ messages in thread
From: Tu-Tu Yu @ 2009-05-26 18:37 UTC (permalink / raw)
To: linux-dvb
Hello:
this is the output of the status... I would like to know how to
calculate the the SNR DB value. Thank you so much!
The frontend they used for DVB-T DUAL express is "Zarlink zl10353 DVB-T"
status 1e | signal b788 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1e | signal b78c | snr 0f2f2 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1e | signal b77c | snr 0f2f2 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1e | signal b780 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1e | signal b774 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1e | signal b77c | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
Audrey
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-dvb] how to get the SNR DB value for DVICO DVB-T Dual express card
2009-05-26 18:37 [linux-dvb] how to get the SNR DB value for DVICO DVB-T Dual express card Tu-Tu Yu
@ 2009-05-27 8:05 ` Antti Palosaari
0 siblings, 0 replies; 2+ messages in thread
From: Antti Palosaari @ 2009-05-27 8:05 UTC (permalink / raw)
To: linux-media; +Cc: linux-dvb
On 05/26/2009 09:37 PM, Tu-Tu Yu wrote:
> Hello:
> this is the output of the status... I would like to know how to
> calculate the the SNR DB value. Thank you so much!
> The frontend they used for DVB-T DUAL express is "Zarlink zl10353 DVB-T"
>
> status 1e | signal b788 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal b78c | snr 0f2f2 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal b77c | snr 0f2f2 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal b780 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal b774 | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
> status 1e | signal b77c | snr 0f1f1 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
0xf1/8 = 30.125dB
regards
Antti
--
http://palosaari.fi/
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