On Fri, 2008-05-23 at 22:36 +0200, kafifi wrote: > Hello, > > I recently added a NOVA-T500 to my vdrbox. Unfortunately, even if the > picture is really nice, I've some freezes because the DVB-T signal is weak > (I am in 50km of the Eiffel Tower...). Ah ah ! Un compatriote! > I ordered a 0.4 dB low noise > preamplifier (ULNA 3036 from TGN-Technology) to improve my installation. Just make sure that you install it as close to the antenna as possible, on the mast. > > I will need to mesure strengh and bit rate error values. Unfortunately, > Femon 1.6 is mesuring only the strengh value (about 60%). It seems the DVB > driver of Nova-T 500 always returns 0. It does not, or at least it did not when using a v4l-dvb tree from around February. ================================================================================ Tunning channel tvtv DIGITAL (634000000) using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 634000000 Hz video pid 0x0000, audio pid 0x0000 Signal: 41% BER 2097151 UNC 44 Signal: 41% BER 4240 UNC 0 Signal: 40% BER 5872 UNC 0 Signal: 40% BER 4928 UNC 0 Signal: 41% BER 2848 UNC 0 Signal: 40% BER 5344 UNC 0 Signal: 40% BER 8304 UNC 0 Signal: 41% BER 3232 UNC 0 Signal: 41% BER 3264 UNC 0 Signal: 41% BER 4288 UNC 0 ================================================================================ Tunning channel Sky Text (634000000) using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 634000000 Hz video pid 0x0000, audio pid 0x0000 Signal: 41% BER 2097151 UNC 0 Signal: 41% BER 3072 UNC 15 Signal: 40% BER 2944 UNC 0 Signal: 41% BER 2688 UNC 0 Signal: 40% BER 6880 UNC 0 Signal: 41% BER 7280 UNC 0 Signal: 41% BER 3744 UNC 0 Signal: 40% BER 7168 UNC 0 Signal: 39% BER 4160 UNC 0 Signal: 40% BER 4304 UNC 0 ================================================================================ Tunning channel Virgin Radio (634000000) using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 634000000 Hz video pid 0x0000, audio pid 0x076d Signal: 41% BER 2097151 UNC 0 Signal: 41% BER 3520 UNC 0 Signal: 41% BER 6384 UNC 0 Signal: 41% BER 4128 UNC 0 Signal: 41% BER 6128 UNC 0 Signal: 40% BER 8560 UNC 0 Signal: 41% BER 5856 UNC 0 Signal: 40% BER 7968 UNC 0 Signal: 41% BER 7664 UNC 0 Signal: 41% BER 11824 UNC 0 This was generated on my Nova-T-500 before I got a low-noise masthead amp: http://www.youplala.net/~will/htpc/signaltest/ I used the following scripts to generate this: http://www.linuxtv.org/wiki/index.php/Testing_reception_quality Maybe femon has an issue, though, as those scripts do not use it. Nico http://www.youplala.net/linux/home-theater-pc _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
