[linux-dvb] Tuner sensitivity - details not on linux dvb wiki?
Thomas Pinz - DC2RPT
dc2rpt at gmx.de
Sun Mar 4 11:50:48 CET 2007
On Sunday 04 March 2007 08:53, Viktor Avramov wrote:
> Despite the thoroughness of the wiki I have not been able to find
> information on the tuning performance of the various devices supported by
> linux DVB.
Doing a performance tests is sadly not an easy task. In general, the
sensitivity of an receiver not the only parameter which decides if the whole
performance is good or not. In case of terrestrial receiption there are some
other influences on the signal and these made the task for the receiver also
not so easy. The signal usually contains also fading effects, co-channel and
adjacent channel interferers, all of noise influences and local generated
distortions by your PC.
And some devices are good with the one influences, others are good with other
So if someone would test some receivers on this antenna this would represent
only this signal condition, if yours is different, the whole ranklist could
But to test the devices completely with the usual influences, you need some
expensive signal generators and a lot of time. So i never seen a test in a
magazine where this had been done completely. If you are interested in such
tests, with the keywords "NORDIG" (or "MBRAI") you will find some measurement
standards on the net.
In my personal experience, the differences between the devices are most time
very small and i could not recommend a device which is better than all
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