On Fri, Dec 18, 2009 at 2:23 PM, Michael Akey <akeym@xxxxxxxxxxxxx> wrote: > Steven Toth wrote: >> >> On Tue, Dec 15, 2009 at 4:53 AM, Lou Otway >> <louis.otway@xxxxxxxxxxxxxxxxxxxxxxx> wrote: >> >>> >>> Michael Akey wrote: >>> >>>> >>>> I can't get the scan/scan-s2 utilities to lock any transponders (DVB-S). >>>> My test satellite is AMC1 103W, the Pentagon Channel tp. This is >>>> probably >>>> some simple user error on my part, but I can't figure it out. I have a >>>> Corotor II with polarity changed via serial command to an external IRD. >>>> C/Ku is switched by 22KHz tone, voltage is always 18V. Ku is with tone >>>> off, C with tone on. Speaking of which, is there a way to manually set >>>> the >>>> tone from the arguments on the scan utilities? >>>> >>>> Here's what I've tried and the results: >>>> >>>> $ ./scan-s2 -a 0 -v -o zap -l 10750 INIT >>>> API major 5, minor 0 >>>> scanning INIT >>>> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' >>>> initial transponder DVB-S 12100000 H 20000000 AUTO AUTO AUTO >>>> initial transponder DVB-S2 12100000 H 20000000 AUTO AUTO AUTO >>>> ----------------------------------> Using DVB-S >>>> >>>>>>> >>>>>>> tune to: 12100:h:0:20000 >>>>>>> >>>> >>>> DVB-S IF freq is 1350000 >>>> >>>>>>> >>>>>>> tuning status == 0x03 >>>>>>> tuning status == 0x01 >>>>>>> tuning status == 0x03 >>>>>>> tuning status == 0x01 >>>>>>> tuning status == 0x03 >>>>>>> tuning status == 0x00 >>>>>>> tuning status == 0x01 >>>>>>> tuning status == 0x03 >>>>>>> tuning status == 0x00 >>>>>>> tuning status == 0x00 >>>>>>> >>>> >>>> WARNING: >>> tuning failed!!! >>>> >>>>>>> >>>>>>> tune to: 12100:h:0:20000 (tuning failed) >>>>>>> >>>> >>>> DVB-S IF freq is 1350000 >>>> >>>>>>> >>>>>>> tuning status == 0x03 >>>>>>> tuning status == 0x01 >>>>>>> tuning status == 0x00 >>>>>>> tuning status == 0x00 >>>>>>> >>>> >>>> ...snip... >>>> >>>> Same thing happens if I use just 'scan' and not 'scan-s2.' >>>> >>>> If I use dvbtune, it works though.. >>>> >>>> $ dvbtune -f 1350000 -p H -s 20000 -c 0 -tone 0 -m >>>> Using DVB card "Conexant CX24116/CX24118" >>>> tuning DVB-S to L-Band:0, Pol:H Srate=20000000, 22kHz=off >>>> polling.... >>>> Getting frontend event >>>> FE_STATUS: >>>> polling.... >>>> Getting frontend event >>>> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI >>>> FE_HAS_SYNC >>>> Bit error rate: 0 >>>> Signal strength: 51648 >>>> SNR: 26215 >>>> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI >>>> FE_HAS_SYNC >>>> Signal=51648, Verror=0, SNR=26215dB, BlockErrors=0, (S|L|C|V|SY|) >>>> Signal=51776, Verror=0, SNR=26624dB, BlockErrors=0, (S|L|C|V|SY|) >>>> >>>> The tuning file 'INIT' contains only the following line: >>>> S 12100000 H 20000000 AUTO >>>> >>>> I'm using v4l-dvb drivers from the main repo as of about a week ago. I >>>> am >>>> running kernel 2.6.32 on Debian testing. Any help is appreciated ..and >>>> hopefully it's just a simple flub on my part! >>>> >>>> --Mike >>>> >>> >>> Try using a non-auto FEC and rolloff. >>> >>> Some devices won't accept auto for these parameters. >>> >> >> Michael, >> >> The silicon in question doesn't do automatic FEC detection. Be sure to >> specify which FEC you need for the sat. If in doubt, walk through them >> all manually. Pilot auto detect is done in s/w was was added a long >> time ago. >> >> - Steve >> >> > > Steve et al, > > It would appear that it does in fact do auto FEC since I don't specify it > with dvbtune and it works just fine (with both my Prof 7300 and 7301.) I > think it's a tone issue, but then again, why does attempting to scan > something on both bands C and Ku (tone on, and tone off respectively) not > work? I figured if it's a tone issue that only one band would work. > > I tried setting the FEC and even the delivery system (S1 rather than S) and > it makes no difference. I could try the DVB-S2 NBC mux on that satellite > too.. but I'm not sure why that would make a difference. > > If you folks have any other ideas, let me know. Thanks for your responses > so far! It doesn't do auto FEC in S2 mode, only S mode. -- Steven Toth - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
